Final Report Anaerobic Digestate and Compost Trials in...

Final Report

Anaerobic Digestate and CompostTrials in Commercial Forestry

Innovative Uses for Quality Composts and Outputs from Anaerobic Digestion within the Landscape and Regeneration Sectors in Scotland

Project code: OBF013-004 ISBN: [Add reference] Research date: December 2010 – March 2011 Date: March 2011

ZERO WASTE SCOTLAND helps individuals, businesses and local authorities to reduce waste and recycle more, making better use of resources and helping to tackle climate change.

Written by: Jarvis.D., Moffat, A,J.

Front cover photography: Newton Nursery Site with inset photographs of dry and wet digestate, compost and liquor (clockwise from top left)

Zero Waste Scotland/WRAP and David Jarvis Associates Limited believe the content of this report to be correct as at the date of writing. However, factors such as prices, levels of recycled content and regulatory requirements are subject to change and users of the report should check with their suppliers to confirm the current situation. In addition, care should be taken in using any of the cost information provided as it is based upon numerous project-specific assumptions (such as scale, location, tender context, etc.). The report does not claim to be exhaustive, nor does it claim to cover all relevant products and specifications available on the market. While steps have been taken to ensure accuracy, Zero Waste Scotland/WRAP cannot accept responsibility or be held liable to any person for any loss or damage arising out of or in connection with this information being inaccurate, incomplete or misleading. It is the responsibility of the potential user of a material or product to consult with the supplier or manufacturer and ascertain whether a particular product will satisfy their specific requirements. The listing or featuring of a particular product or company does not constitute an endorsement by Zero Waste Scotland/WRAP and Zero Waste Scotland/WRAP cannot guarantee the performance of individual products or materials. This material is copyrighted. It may be reproduced free of charge subject to the material being accurate and not used in a misleading context. The source of the material must be identified and the copyright status acknowledged. This material must not be used to endorse or used to suggest Zero Waste Scotland/WRAP’s endorsement of a commercial product or service. For more detail, please refer to Zero Waste Scotland/WRAP’s Terms & Conditions on its web site: www.wrap.org.uk

Anaerobic Digestate and Compost Trials in Commercial Forestry 1

Executive summary This report describes the establishment of a comprehensive field trial of two types of anaerobic digestate (AD),

with and without compost, on the growth of trees. This research was funded by Zero Waste Scotland/WRAP as

Project OBF 013-004. It was undertaken by David Jarvis Associates Limited (DJA) and Forest Research (FR), the

research agency of the Forestry Commission.

Anaerobic digestion (AD) involves the break down of biodegradable material in the absence of oxygen by micro-

organisms called methanogens. It is already widely used to treat wastewater in the UK and is increasingly used to

treat other organic wastes, including domestic and commercial food waste, manures and biofuel crops. Digestate

can come in three forms; fibrous, liquor or a sludge-based combination of the two fractions. It is an organic

material, high in nutrients such as nitrogen and phosphorus, making it potentially valuable as a substitute for

artificial fertilisers.

The experiment was designed to examine whether application of two AD digestate products to tree planting pits

at the time of tree planting would enhance soil conditions and tree growth, on its own or in conjunction with a

PAS100 compost product. In addition, we wished to compare responses against the mulching power of PAS100

compost as a separate treatment.

The nature of the site and its location determined in part the amounts of AD and compost that could be applied

experimentally. Newton nursery lies in a designated Nitrate Vulnerable Zone, restricting the application of total

nitrogen to no more than 250 kg N ha-1. Application rates chosen to maximise the application of AD whilst

allowing the study of interaction between AD and compost are given in Table 1, below.

1) Control – no AD or compost application

2) 50 mm PAS100 added to soil surface as weed suppressant

3) 50 mm PAS100 incorporated

4) 50 mm PAS 100 drip fed with 50 kg N in leachate to give 250 kg N ha-1

5) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD digestate

6) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD leachate

7) 12 mm PAS 100 made up by 50 kg N from leachate + digestate to 250 kg N ha-1

Table 1. Rates of application of AD and compost materials

AD materials used for the experiment at Newton nursery were sourced from the Scottish Water Horizons

Deerdykes facility near Cumbernauld. This is a ‘brand new’ facility, opened in Spring 2010, with the capability to

convert 30,000 tonnes of solid and liquid food waste into around 8,000 megawatts of power each year. The

experiment used some of the first AD materials produced by the plant. PAS100 compliant compost was also

sourced from Scottish Water Horizons.

Generally

Initial results are provided describing a baseline chemical composition of the:


- unamended top soil

- unamended anaerobic digestate cake

- unamended PAS100 green compost

- unamended liquor digestate; and,

- treatments 1-7.

For each treatment, duplicate samples (occasionally single samples) were taken of the ‘pure’ and ‘planted’ media.

The wide range of analyses selected can provide an indication of the suitability of the soil, compost and anaerobic

digestate (AD) products for tree establishment and may be used to assess risks posed to the environment; for

example, by potentially toxic elements, organic contaminants or high nutrient loadings. Results from future

investigations may be compared with these baseline figures to assess the impact of each treatment on tree

growth.

The analyses conducted on the soil, compost and AD (cake and liquor), and treatment samples were:

- pH

- Conductivity

- Nitrogen (as total, ammonium-N and nitrate-N)

- Carbon (as total, total inorganic and total organic)

- Organic matter

- Nutrients (P, K, Ca, Mg)

- Elemental composition (covering potential toxic as well as essential nutrients: Na, Al, Fe, Mn, S, Ba, Cd,

Co, Cr, Cu, Ni, Pb, Sr, Zn, As, B, Hg, Zr, Mo, Sb, Se, Sn)

- Visible contaminants

- Total and speciated polycyclic aromatic hydrocarbons (PAH) (specifically: USEPA16 PAH)

- Total Petroleum Hydrocarbons (TPH) (as well as the sub-divisions: C10-C40 and C35-C40)

All analysis were conducted by Forest Research’s chemical laboratories in Farnham, Surrey, except the Total and

Speciated PAH and the TPH analyses, which were conducted by SAL Ltd, in Manchester. Analyses were

conducted in January 2011.

Preliminary results

Mean average results of the chemical analyses of the soil, compost, AD product and treatment samples are

represented in Tables 1 and 2. For the most part, results are typical and as expected for each of the media and

sample treatments, and in accordance with the experimental design. A difference between mean averages for

the ‘pure’ and ‘planted’ samples was observed within treatments for many of the chemical parameters analysed

and these are presented below. An overview commentary on the results is presented below; exceptional results

are discussed.

pH analysis demonstrated that the planting media and sample treatments were mostly acidic (but ranged 5.3-7.9)

and favourable to tree establishment. Total nitrogen ranged 2-16% for the compost and AD products. Total

carbon ranged 21-61% and increased in the order PAS compost < AD cake < AD digestate. In each case, the

carbon was almost entirely organic carbon; total inorganic carbon contents were <1%. The total nitrogen and


carbon values equate to C:N ratios of 10-15 for the unamended soil, compost and AD cake, resulting in C:N ratios

of 11-14 in the treatment plots.

The concentrations of potentially toxic elements demonstrated that there were no unacceptable risks posed by

the soil, compost or AD products for the elements cadmium, chromium, copper, nickel, zinc, arsenic, boron,

mercury or selenium, as recorded concentrations were below the UK’s soil guideline values for ‘residential’

locations (comparison is made to the SGVs for ‘residential’ locations as these are the most conservative of the

SGVs available). Guideline values are not currently available upon which to assess the risk posed by the other

potentially toxic elements.

Analysis of the organic contaminant loadings of the compost and AD products demonstrated that the total

petroleum hydrocarbon (TPH) concentrations were small and posed no significant risk, as they are within LQM’s

residential generic acceptance criteria of <12,000 mg/kg. Similarly, no unacceptable risks are posed by total PAH

concentrations in the compost or AD products, with all values below the 40 mg/kg intervention level presented by

the Dutch Ministry of Housing, Spatial Planning and Environment, which is often used as a guideline in the

absence of a UK standard. The highest total PAH concentration observed was 5 mg/kg (mean 3.4 mg/kg) in the

PAS compost.

The electrical conductivity (EC) of the PAS compost, the AD liquor and cake was high (10-36,000 μS/cm). The

resultant EC was subsequently high in the ‘pure’ samples taken from treatments 3 and 4 (ranging 9885-13110

μS/cm). The EC recorded in ‘planted’ samples from treatments 3 and 4 and samples from all other treatments

was below the recommended guideline of 2000 μS/cm.

Ammoniacal nitrogen (NH4-N) was determined to be 8530 mg/kg (mean average) in the unamended AD cake,

and >280,000 mg/kg (mean average) in the AD liquor. Subsequently, values of 2,300-5,600 mg/kg NH4-N (mean

average) were recorded in ‘pure’ treatments 3 and 4; however, these values were much lower in the ‘planted’

samples from treatments 3 and 4 and all other treatments (ranging < 1 - ~300 mg/kg NH4-N)

For the most part, data variability between duplicate samples is acceptable (relative standard deviation 20% for

90% of the paired samples). However, relative standard deviation’s of 50, 70 and >100% were also recorded.

Statistical confidence in the experimental results may benefit from the use of triplicate samples in any future

investigations.

Future Work

The experiment has been installed successfully and appropriate basal measurements of soil chemistry and tree

height have been taken, in anticipation of changes and response to the different treatments during the 2011

growth season. To maximise the benefits of the investment, further work should be scheduled to maintain the

experiment, keeping trees weed-free during the next five growing season(s). Further soil sampling and analysis

is suggested towards the end of the autumn and annually thereafter. Tree survival will be assessed at the

beginning of the growing season, but together with tree height (and thus tree growth), this should be repeated

just before leaf fall in the autumn of each year. Sampling of leaf tissue in July or August for analysis of plant

macronutrients is also advisable, in order to examine differences in nutrient take up from the soil treatments, and

the balance of nutrients. The latter is important as an overall indicator of site fertility and likely plant response.


Contents1.0 Introduction ............................................................................................................................. 82.0 Exemptions/Licensing .............................................................................................................. 93.0 Methodology .......................................................................................................................... 104.0 Results ................................................................................................................................... 125.0 Future Work ........................................................................................................................... 15References ......................................................................................................................................... 16

Appendix 1 Location of AD Experiment Appendix 2 The Certificate of Ecological Improvement, Pollution Risk Assessment, Application

for Exemption (11 October 2010) and Written Approval from SEPA (25 October 2010)

Appendix 3 Experimental Details Appendix 4 Experimental Layout Appendix 5(A) Results of PAS100 Compost Analysis Appendix 5(B) Results of Anaerobic Digestate Liquor Analysis Appendix 6 Certificate of Analysis and Laboratory Results Appendix 7 Preliminary Results. Baseline chemical compostion of unamended soil, compost, AD

products and treatments Appendix 8 Tree Height at Planting Appendix 9 Photographic Records


Use of in forestry – preliminary resultsGlossary

Aggregation: refers to the way in which sand, silt and clay particles come together to form a soil structure.

Ameliorant: substance added to soil to improve growing conditions for plants.

Anaerobic digestate: the fibrous, liquor or sludge-based combination of the two fractions produced by the breakdown of biodegradable material in the absence of oxygen.

Attrition: as part of soil remediation technology, removes fine particles and contaminants from the surface of primary material (soil).

Biomass: refers to the mass of biological organisms in an area of ecosystem at any given time.

Brownfield: refers to both known contaminated sites and any land or premises which have previously been used or developed and not currently fully in use (this excludes agricultural land).

Bulk density: the mass of a unit volume of soil, generally expressed in g/cm³. Light and porous soils have low bulk densities, whereas heavy and compacted soils have high bulk densities.

Carbon sequenstation: long-term storage of carbon dioxide or other forms of carbon to mitigate global warming.

Cation exchange capacity (CEC): the total amount of exchangeable cations that a particular soil, or soil forming material can absorb at a given pH. Light textured soils (in the sandy categories) possess low cation exchange capacities (CEC) and adding compost raises the CEC of these soils. This enables the soil to better hold onto nutrients, such as potash and nitrogen, which would otherwise leach beyond the rooting depth.

Compost: solid particulate materials that is the result of composting, that has been sanitised and stabilised and that confers beneficial effects when added to soil, used as a component of a growing medium, or is used in another way in conjunction with plants. This definition refers to BSI PAS 100 compost for the purposes of this document.

Composting: process of controlled biological decomposition of biodegradable materials under managed conditions that are predominantly aerobic and that allow the development of thermophilic temperatures as a result of biologically produced heat.

Domestic use: compost use by members of the public in their own gardens, communal or shared gardens, and allotments.

Electrical conductivity: measurement relating to the concentration of soluble ionic constituents, particularly ammonium, calcium, chloride, magnesium, nitrate, phosphate, potassium, sodium and sulphate.

Food derived compost: Compost that has been made from suitable low-risk food wastes such as household and commercial kitchen wastes. Facilities producing such composts are authorised by Animal Health to ensure that they achieve appropriate conditions to ensure their safety.

Fertiliser: soil amendment containing nutrients (macronutrients and micronutrients), added to promote plant growth.

Green compost: The feedstock used to produce green compost is source segregated material collected independently from other waste streams from sources such as domestic gardens, municipal parks and recreational areas.

Green waste: Arboreal and other botanical residues such as grass clippings and other plan residues derived from parks, gardens, nurseries and amenity areas and sometimes waste from vegetable or fruit processing activities.


Use of in forestry – preliminary resultsGrowing medium: material, other than soils in situ, in which plants are grown.

Land reclamation: the recovery of land from a brownfield or underutilised state to make it suitable for reuse achieved through stabilisation, contouring, maintenance, conditioning, reconstruction and vegetation establishment.

Land remediation: the process of making a site fit-for-purpose through the removal or containment of contaminants. Environmental damage is reversed or treated through the management, removal, sealing or treatment of dangerous substances or stabilisation in order to render the site safe for a specific use, but not necessarily for all possible uses.

Land restoration: the process of making a site fit-for-purpose through (among activities carried out), amelioration of the site’s soil or soil forming materials.

Micro-organisms: include bacteria, algae, fungi and protozoa. They recycle nutrients and actively decompose organic matter.

Mulch: substance spread and allowed to remain on the soil surface to conserve soil moisture, suppress weeds and shield soil particles from the erosive forces of raindrops, run-off and wind.

Oxygen diffusion capacity: the capacity of the soil to transfer oxygen to plant roots.

PAS: Publicly Available Specification.

Rotavator: a machine designed to break up soil using rotating blades.

Sewage sludge cake: dewatered, organic-rich sewage sludge that is an output from the sewage treatment process.

Soil improver: material added to soil in situ primarily to maintain or improve its physical properties, and which may improve its chemical and/or biological properties or activity.

Stable, stabilised: degree of processing and biodegradation at which the rate of biological activity under conditions favourable for aerobic biodegradation has slowed and microbial respiration will not significantly resurge under altered conditions, such as manipulation of moisture and oxygen levels, or temperature or the addition of a source of water soluble nitrogen.

Subsoil/substrata: the layer of soil below the layer of topsoil.

Sustainable Urban Drainage Systems (SUDS): surface water drainage systems developed in line with the ideals of sustainable development are collectively referred to as Sustainable Urban Drainage Systems (SUDS).

Topsoil manufacture: blending of soils available on site and potentially other organic or inorganic materials with BSI PAS100 compost to produce a soil that suits the requirements of the site and which provides the same function as topsoil.

Tilth: state of aggregation of soil and its condition for supporting plant growth.

Topsoil: the uppermost layer of soil, where the majority of biological soil activity, concerning micro-organisms and organic matter, occurs.

Water holding capacity: the ability of soil to retain water and thus making it available for a longer period of time in dry conditions.

Wetlands: an area where the soil is saturated with moisture either permanently or seasonally.


Use of in forestry – preliminary resultsAcknowledgements

The authors would like to thank Fraser Reid of SEPA for the very prompt consideration of the request for

exemption without which the trials could not have been progressed.

The authors would also like to thank Mike Hogg of Scottish Water Horizons and staff at the Deerdykes facility

where the AD was sourced.


Use of in forestry – preliminary results1.0 Introduction

This report describes the establishment of a comprehensive field trial of two types of anaerobic digestate (AD),

with and without compost, on the growth of trees. This research was funded by Zero Waste Scotland/WRAP as

Project OBF 013-004. It was undertaken by David Jarvis Associates Limited (DJA) and Forest Research (FR), the

research agency of the Forestry Commission.

Anaerobic digestion (AD) involves the break down of biodegradable material in the absence of oxygen by micro-

organisms called methanogens. It is already widely used to treat wastewater in the UK and is increasingly used to

treat other organic wastes, including domestic and commercial food waste, manures and biofuel crops. Digestate

can come in three forms; fibrous, liquor or a sludge-based combination of the two fractions. It is an organic

material, high in nutrients such as nitrogen and phosphorus, making it potentially valuable as a substitute for

artificial fertilisers.

Traditionally, forestry in Britain has not been a large consumer of fertiliser in comparison with agriculture (Moffat

and Williamson, 1991). In the second half of the last century, fertilisers, mainly of phosphorus and nitrogen,

were used to establish new crops of conifer trees on poor soils in the uplands of Britain (Taylor, 1993). In the

1980s and 90s, attention moved to the use of sewage sludges (liquid and cake) as a means of promoting tree

growth and as a suitable sink or disposal route (Wolstenholme et al., 1992). More recently, interest has been

expressed in the use of composts (Moffat, 2006; Moffat and McKay, 2008).

In tandem with changes in types of organic material on offer to forestry, the nature of this industry has been

developing too. In the 1990s, considerable interest was expressed in the growth of Short Rotation Crops (SRC)

of willow and poplar for renewable energy, and the likely increase in demand for nutrients that this intensive

system would require. At that time, due consideration was given to the utility of sewage sludges for maintaining

site fertility (Bardos et al., 2001). More recently, attention has moved to Short Rotation Forestry (SFR) systems,

where trees of quick-growing species are cultivated for biomass over a 15-20 year period (McKay, 2011).

Although this system is currently being targeted at ex-agricultural land and relatively fertile soils, the greater

demand on nutrition compared to slower growing crops may also mean that some form of replenishment might

be beneficial on some sites in order to maintain nutrient capital and/or to stimulate faster growth (Vanguelova

and Pitman, 2011).

To date, there has been little exploration of the potential benefits of application of anaerobic digestates for tree

growth in Britain. The Wastes Protocols Project (2009), sponsored by WRAP and the Environment Agency,

considered that forest land suitable for receiving sewage sludge and/or MSW composts would also be suitable for

AD, although transport costs would reduce the overall amount potentially used to around 2 million tonnes per

year. However, the chemical qualities of AD, whilst similar in some ways to sewage sludge, are also different, the

former containing large quantities of ammonia unless maturated. It was therefore considered important to field

test the use of AD on trees in a scientifically replicated experiment. A site at the Forestry Commission Newton

nursery, Morayshire in Scotland was chosen for this purpose (Grid ref: NJ15886365) (Appendix 1).


Use of in forestry – preliminary results2.0 Exemptions/Licensing

Prior to commencement of the trials, an application for exemption (Paragraph 7) under the Waste Management

Licensing Regulations 1994 (as amended) was submitted to the Scottish Environment Protection Agency (SEPA)

together with a Certificate of Ecological Improvement and a Pollution Risk Assessment.

The Certificate of Ecological Improvement, Pollution Risk Assessment, Application for Exemption (11 October

2010) and Written Approval from SEPA (25 October 2010) are included in Appendix 2.


Use of in forestry – preliminary results3.0 Methodology

The detailed experimental plan is given in Appendix 3. The experiment was designed to examine whether

application of two AD digestate products to tree planting pits at the time of tree planting would enhance soil

conditions and tree growth, on its own or in conjunction with a PAS100 compost product. In addition, we wished

to compare responses against the mulching power of PAS100 compost as a separate treatment.

Composts tend to have large carbon to nitrogen ratios, and are therefore a potential sink for the large amounts of

nitrogen that ADs contain. It was thus envisaged that soil treatment including a mixture of AD and compost

might prolong the fertilising effects of the AD against the effects of leaching whilst protect the tree seedling from

exposure to excessive amounts of soluble nutrients, especially ammonia. A tree considered for its potential for

Short Rotation Forestry systems, Italian alder (Alnus cordata), was chosen as the test species. Alders are also

important in the revegetation of reclaimed brownfield land, another potential opportunity for AD recycling

(Wastes Protocols Project, 2009). An experimental design with three replicates of each treatment in a

randomised block layout was chosen. Appendix 4 shows the detailed layout of the treatment plots.

The nature of the site and its location determined in part the amounts of AD and compost that could be applied

experimentally. Newton nursery lies in a designated Nitrate Vulnerable Zone, restricting the application of total

nitrogen to no more than 250 kg N ha-1. Application rates chosen to maximise the application of AD whilst

allowing the study of interaction between AD and compost are given in Table 1, below.

1) Control – no AD or compost application

2) 50 mm PAS100 added to soil surface as weed suppressant

3) 50 mm PAS100 incorporated

4) 50 mm PAS 100 drip fed with 50 kg N in leachate to give 250 kg N ha-1

5) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD digestate

6) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD leachate

7) 12 mm PAS 100 made up by 50 kg N from leachate + digestate to 250 kg N ha-1

Table 1. Rates of application of AD and compost materials

AD materials used for the experiment at Newton nursery were sourced from the Scottish Water Horizons

Deerdykes facility near Cumbernauld. This is a ‘brand new’ facility, opened in Spring 2010, with the capability to

convert 30,000 tonnes of solid and liquid food waste into around 8,000 megawatts of power each year. The

experiment used some of the first AD materials produced by the plant. PAS100 compliant compost was also

sourced from Scottish Water Horizons. Analyses of the three organic materials used in the experiment are given

in Appendix 5.

The detailed timetable for establishing the experiment is also given in Appendix 3. Site preparation work began

in October 2010, and further operations continued through November. Tree planting was commenced at the end

of November, but was interrupted twice by the heavy snows experienced in the winter months. The planting was

eventually completed in January 2011. The heights of all trees at planting were measured. Soil samples were


Use of in forestry – preliminary results

taken for analysis as prescribed and despatched to Forest Research’s chemical laboratories in January. Some

analyses were commissioned from an external laboratory, SAL Ltd, in Manchester.


Use of in forestry – preliminary results4.0 Results

As the main element of this research contract was the establishment of the experiment, there are few results to

report at this stage.

Generally

Initial results are provided describing a baseline chemical composition of the:

- unamended top soil

- unamended anaerobic digestate cake

- unamended PAS100 green compost

- unamended liquor digestate; and,

- treatments 1-7.

For each treatment, duplicate samples (occasionally single samples) were taken of the ‘pure’ and ‘planted’ media.

The wide range of analyses selected can provide an indication of the suitability of the soil, compost and anaerobic

digestate (AD) products for tree establishment and may be used to assess risks posed to the environment; for

example, by potentially toxic elements, organic contaminants or high nutrient loadings. Results from future

investigations may be compared with these baseline figures to assess the impact of each treatment on tree

growth.

The analyses conducted on the soil, compost and AD (cake and liquor), and treatment samples were:

- pH

- Conductivity

- Nitrogen (as total, ammonium-N and nitrate-N)

- Carbon (as total, total inorganic and total organic)

- Organic matter

- Nutrients (P, K, Ca, Mg)

- Elemental composition (covering potential toxic as well as essential nutrients: Na, Al, Fe, Mn, S, Ba, Cd,

Co, Cr, Cu, Ni, Pb, Sr, Zn, As, B, Hg, Zr, Mo, Sb, Se, Sn)

- Visible contaminants

- Total and speciated polycyclic aromatic hydrocarbons (PAH) (specifically: USEPA16 PAH)

- Total Petroleum Hydrocarbons (TPH) (as well as the sub-divisions: C10-C40 and C35-C40)

All analysis were conducted by Forest Research’s chemical laboratories in Farnham, Surrey, except the Total and

Speciated PAH and the TPH analyses, which were conducted by SAL Ltd, in Manchester. Analyses were

conducted in January 2011.

Preliminary results

Mean average results of the chemical analyses of the soil, compost, AD product and treatment samples are

represented in Tables 1 and 2. For the most part, results are typical and as expected for each of the media and

sample treatments, and in accordance with the experimental design. A difference between mean averages for



the ‘pure’ and ‘planted’ samples was observed within treatments for many of the chemical parameters analysed

and these are presented below. An overview commentary on the results is presented below; exceptional results

are discussed.

pH analysis demonstrated that the planting media and sample treatments were mostly acidic (but ranged 5.3-7.9)

and favourable to tree establishment. Total nitrogen ranged 2-16% for the compost and AD products. Total

carbon ranged 21-61% and increased in the order PAS compost < AD cake < AD digestate. In each case, the

carbon was almost entirely organic carbon; total inorganic carbon contents were <1%. The total nitrogen and

carbon values equate to C:N ratios of 10-15 for the unamended soil, compost and AD cake, resulting in C:N ratios

of 11-14 in the treatment plots.

The concentrations of potentially toxic elements demonstrated that there were no unacceptable risks posed by

the soil, compost or AD products for the elements cadmium, chromium, copper, nickel, zinc, arsenic, boron,

mercury or selenium, as recorded concentrations were below the UK’s soil guideline values for ‘residential’

locations (comparison is made to the SGVs for ‘residential’ locations as these are the most conservative of the

SGVs available). Guideline values are not currently available upon which to assess the risk posed by the other

potentially toxic elements.

Analysis of the organic contaminant loadings of the compost and AD products demonstrated that the total

petroleum hydrocarbon (TPH) concentrations were small and posed no significant risk, as they are within LQM’s

residential generic acceptance criteria of <12,000 mg/kg. Similarly, no unacceptable risks are posed by total PAH

concentrations in the compost or AD products, with all values below the 40 mg/kg intervention level presented by

the Dutch Ministry of Housing, Spatial Planning and Environment, which is often used as a guideline in the

absence of a UK standard. The highest total PAH concentration observed was 5 mg/kg (mean 3.4 mg/kg) in the

PAS compost.

The electrical conductivity (EC) of the PAS compost, the AD liquor and cake was high (10-36,000 μS/cm). The

resultant EC was subsequently high in the ‘pure’ samples taken from treatments 3 and 4 (ranging 9885-13110

μS/cm). The EC recorded in ‘planted’ samples from treatments 3 and 4 and samples from all other treatments

was below the recommended guideline of 2000 μS/cm.

Ammoniacal nitrogen (NH4-N) was determined to be 8530 mg/kg (mean average) in the unamended AD cake,

and >280,000 mg/kg (mean average) in the AD liquor. Subsequently, values of 2,300-5,600 mg/kg NH4-N (mean

average) were recorded in ‘pure’ treatments 3 and 4; however, these values were much lower in the ‘planted’

samples from treatments 3 and 4 and all other treatments (ranging < 1 - ~300 mg/kg NH4-N)

For the most part, data variability between duplicate samples is acceptable (relative standard deviation 20% for

90% of the paired samples). However, relative standard deviation’s of 50, 70 and >100% were also recorded.

Statistical confidence in the experimental results may benefit from the use of triplicate samples in any future

investigations.



Tree heights at planting

Tree heights at planting are given in Table 2 and Appendix 6.

)treatment 1 2 3 Meana 101 95 109 102b 97 95 95 96c 101 93 87 94d 97 99 84 93e 88 106 90 95f 104 98 89 97g 97 106 85 96Mean 98 99 91 96

Block

Table 2. Mean tree heights at planting (mm). Means are the average of 9 trees per plot

Mean heights of trees range from 84 to 106 mm. Differences have not been examined by statistical analysis, but

appear to be very small or non existent between treatments, though trees in Block 3 may be slightly smaller than

in the other two blocks. These differences, if apparent, will be taken into account in further statistical testing of

height growth later in 2011.


Use of in forestry – preliminary results5.0 Future Work

The experiment has been installed successfully and appropriate basal measurements of soil chemistry and tree

height have been taken, in anticipation of changes and response to the different treatments during the 2011

growth season. To maximise the benefits of the investment, further work should be scheduled to maintain the

experiment, keeping trees weed-free during the next five growing season(s). Further soil sampling and analysis

is suggested towards the end of the autumn and annually thereafter. Tree survival will be assessed at the

beginning of the growing season, but together with tree height (and thus tree growth), this should be repeated

just before leaf fall in the autumn of each year. Sampling of leaf tissue in July or August for analysis of plant

macronutrients is also advisable, in order to examine differences in nutrient take up from the soil treatments, and

the balance of nutrients. The latter is important as an overall indicator of site fertility and likely plant response.



References

Bardos, P., French, C., Lewis, A., Moffat, A. and Nortcliff, S. 2001. Marginal land restoration scoping study: information review and feasibility study. Ex Site Research Project Report 1. Land Quality Press, Nottingham, 104 pp.

McKay, H. 2011. Introduction. In Forest Research. Short rotation forestry. Review of growth and environmental impacts. Forest Research e-monograph (in press).

Moffat, A.J. 2006. The use of sewage sludges and composts in forestry. Forestry Commission Information Note 79, Forestry Commission, Edinburgh.

Moffat, A.J. and McKay, H.M. 2008. The potential of British forests to recycle organic wastes. Quarterly Journal of Forestry 102, 21-27.

Moffat, A.J. and Williamson, D.R. 1991. Review of fertiliser and herbicide use in UK tree crop systems. Journal of the Science of Food and Agriculture 57, 1-18.

Taylor, C.M.A. 1993. Forest fertilisation in Britain. Forestry Commission Bulletin 95. HMSO, London.

Vanguelova, E. and Pitman, R. 2011. Impacts of Short Rotation Forestry on soil sustainability. In Forest Research. Short rotation forestry. Review of growth and environmental impacts. Forest Research e-monograph (in press).

Waste Protocols Project 2009. Anaerobic Digestate. Partial Financial Impact Assessment of the introduction of a Quality Protocol for the production and use of anaerobic digestate. Environment Agency, Bristol. http://www.environment-agency.gov.uk/static/documents/Business/Financial_impact_assessment_for_anaerobic_digestate.pdf

Wolstenholme, R., Dutch, J., Moffat, A.J., Bayes, C.D. and Taylor, C.M.A. 1992. A manual of good practice for the use of sewage sludge in forestry. Forestry Commission Bulletin 107. HMSO, London.

10

Appendix 1 Location of AD Experiment

FORESTRY COMMISSION RESEARCH AGENCY

SUMMARY EXPERIMENTAL RECORD FORM 11A SECTION: CFCC

Experiment Name: Misc 437 P2011 Compt No: Newton Nursery Map Ref: NJ1588063650 Series Sheet No: OS28

11

Appendix 2 The Certificate of Ecological Improvement, Pollution Risk Assessment, Application for Exemption (11 October 2010) and Written Approval from SEPA (25 October 2010)

12

Appendix 3 Experimental Details Initials:

AM

Date: Feb 2011 SUMMARY EXPERIMENTAL RECORD FORM 11A (PART 1)

Experiment Name:

Misc 437 P2011 District: Moray & Aberdeenshire FD

Branch: CFCC

Other Branch: Landowner: FC Review:

ExperimentTitle: Use of anaerobic digestate to establish treesPreamble: Anaerobic digestion (AD) is a technology increasingly used for the treatment of biodegradable

organic materials such as food and abattoir wastes. AD generates methane which is used to generate renewable energy. By products include digestate which commonly occurs in a liquid and a sludge based form. Both these materials are being examined for their potential to be applied to land in order to improve soil quality and fertility and thus to enhance plant growth. WRAP (Waste and Resources Action Programme) have funded research projects across Great Britain to explore these issues, and this experiment, sponsored by WRAP, is concerned with the effect of digestate on tree survival and growth.

Objectives: The experiment will examine whether application of two AD digestate products to tree planting pits at the time of tree planting will enhance soil conditions and tree growth, on its own or in conjunction with a PAS100 compost product.

Experimentaltreatments: Products & Active ingredients: (a) AD liquid digestate, (b) AD sludge digestate, (c) PAS100

compost, (d) Glyphosate for basal treatment (see below)

Experimental treatments:a) Untouched land. b) As above with PAS100 compost as a weed suppressant mat. c) Topsoil removed; PAS100 blanket installed; thin topsoil replaced d) As c) but including one agreed percentage of agreed AD liquid digestate incorporated into

the compost blanket. e) As d) but using the AD sludge digestate. f) As d) with a different agreed percentage. g) As e) with a different agreed percentage.

Design description

Randomised block design of treatments a) to g) with three replicates (total 21 plots).

Layout (numbers refer to unique plot number, letters refer to treatments given above) 1 b 2 g 3 d 4 a 5 c 6 f 7 e Blo8 a 9 d 10 g 11 b 12 e 13 f 14 c Blo

15 d 16 g 17 a 18 f 19 e 20 c 21 b BloBlocks to be aligned transverse to slope direction. Blocks to be separated by buffer strip of 3 metres width up and down the slope.

Plot size = Treatment plot = 5 x 5 trees planted at 1.5 m intervals. Assessment plot = inner 3 x 3 trees in each plot.

13

Total Area: (ha)

0 . 1 8 Design Code: RaBl No expt plots: 21

Area plot: (m2)

0 . 0 0 5 6 Plants / plot: 25 Varients:

Project No: 97000725 - Use of anaerobic digestate to establish trees Species: Name: D/b Code P Year Yield Class

Alnus cordata (Italian alder) 60-80cms5.1

0050100 2011 -

Features: D/b Code E/B

15

SITE DESCRIPTION

Situation: The experiment is situated within Forestry Commission Nursery at Newton approximately 350m from Newton Field Station. Travel west from Elgin along the A96. After 5.2km turn right onto the B9013, signed for Burghead. Turn right after 0.9km into the FC nursery yard. The Newton office is to the rear of the main nursery building.

Grid ref: NJ1588063650 Elevation: 20-25m asl RelativeElevation:

SSW - York Tower 0.8km 103 m asl. NNW - Tappock 3.9 km 87 m asl. WNW - Moray Firth 6.3 km 0 m asl E - Oak Wood 3.8 km 65 m asl.

Rainfall (mm):

700-750 mm

Aspect: EWHC:ExposureClass:

- Description:

Topex Class: Description:Flag Class: - Description:Slope Class: Description:Topography: Bioclimatic Assessment:

1. Accumulated temperature and potential water deficit: Warm, dry lowland.. 2. Exposure and accumulated frost. Moderately exposed with fairly mild winters. 3. Bioclimatic sub Region. Euoceanic, fairly humid northern temperate

Forest region: 13 Description: Eastern Moine Highlands Lithology: S Description: Torridonian sandstone and grit SoilGP./Ty./Ph.

6zc Description: Podzolic Gley Cultivated

Crop history: 5 Description: Tree Nursery CultivationHistory:

P Description: Complete cultivation

Vegetation Species

D/b Code FrequencyD/b code Desc

Dominance D/b Code Desc

Soil Gp. D/b Code7Z(c)

Previousspecies:

Name D/b Code Year felled

Fallow Chemicals Substance D/b Code E/B


Initials: AM Date: Feb 2011 Sheet No:

SUMMARY EXPERIMENTAL RECORD FORM 11A (PART 2A)

ESTABLISHMENT DETAILS

Experiment Name: Misc 437 P2011

Establishment carried out by: Newton Field Station Staff

Weather at time of planting: Cold, overcast with a slight easterly wind

Operation Date Details / AuthorityChemical weeding 20-10-2010 Existing vegetation treated with Glyphosate at 5L/ha applied

by tractor mounted sprayer by Newton Nursery staff. Weather at time of spraying was cool and dry with very little wind.

Cultivation– 17-11-2010 Complete plough with tractor mounted agricultural plough followed by power harrowing. Completed by Newton Nursery staff. Weather at time of spraying was cool and wet.

Layout 23/25-11-2010

Plots laid out with 1.5m buffers across the slope and 3m buffers up and down the slope. Plot corners marked with 50x50mm wooden posts. Dimensions as per the experiment plan

Planting preparation 23/26-11-10 All soil pits dug out to create a 45x45x30cm planting pit. (Telephone conversation A.Moffat/A.Macleod – agreed to change pit depth from 45 to 30cm)

Digestate sampling 23-11-2010 Samples of the three products (a) AD liquid digestate, (b) AD sludge digestate, and (c) PAS100 compost collected from across the range of containers and couriered to Alice Holt for analysis.

Planting 25/11/10 Treatments (a) and (b) planted and weed suppressant applied as per experiment plan.

Work abandoned due to heavy snow 29-11-2011

Planting 13/14-12-2010

Treatments (c), (d) and (e) planted as per experiment plan. Ground conditions poor with heavy water logging following snow melt. A number of pits need to be excavated again

Work abandoned due to heavy snow 17-12-2010

Planting 17/19-01-2011

Treatments (e), and (f) planted as per experiment plan.Ground conditions poor with heavy water logging following snow melt. A number of pits need to be excavated again

Soil Sampling 25-11-2010 /19-012011

Five representative sub-samples from each of the six treatments excluding the one where compost is used as a mulch mat were collected during the planting process and sent to Alice Holt for analysis.

Rabbit Netting 20-01-2011 Temporary rabbit netting was erected around the experiment by Newton staff


Appendix 4 Experimental Layout

MIS

C 4

37 P

11 -

Use

of A

naer

obic

Dig

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te (A

D) t

o Es

tabl

ish

Tree

s

NPl

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ize

= 5

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s x

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ees

x 1.

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smen

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t = 3

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Buf

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wn

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BLO

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ENTS

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ntou

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.

b)As

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21b

20c

19e


Appendix 5(A) Results of PAS100 Compost Analysis


Appendix 5(B) Results Of Anaerobic Digestate Liquor Analysis


ANNEX 4 (C). RESULTS OF ANAEROBIC DIGESTATE SLUDGE ANALYSIS


Appendix 6 Certificate of Analysis and Laboratory Results

Scientific Analysis Laboratories

Certificate of Analysis

Hadfield HouseHadfield Street

CornbrookManchester

M16 9FETel : 0161 874 2400Fax : 0161 874 2468

Report Number: 230065-1

Date of Report: 24-Mar-2011

Customer: Centre for Forestry and Climate ChangeAlice Holt LodgeFarnhamSurreyGU10 4LH

Customer Contact: . Francois Bochereau

Customer Job Reference: 92000006Customer Purchase Order: B606543Date Job Received at SAL: 04-Mar-2011

Date Analysis Started: 08-Mar-2011Date Analysis Completed: 24-Mar-2011

The results reported relate to samples received in the laboratoryOpinions and interpretations expressed herein are outside the scope of UKAS accreditationThis report should not be reproduced except in full without the written approval of the laboratoryTests covered by this certificate were conducted in accordance with SAL SOPs

This document has been printed from a digitally signed master copy

Scientific Analysis Laboratories is a

limited company registered in England and

Wales (No 2514788) whose address is at

Hadfield House, Hadfield Street, Manchester M16 9FE

1549

Report checkedand authorised by :

Issued by :Mr Ross WalkerCustomer Services Manager

Page 1 of 9

SAL Reference: 230065

Customer Reference: 92000006

Soil Analysed as Soil

TPH

SAL Reference 230065 001 230065 002 230065 003 230065 004 230065 005 230065 006 230065 007 230065 008 230065 009

Customer Sample Reference A1 B1 C1 A2 B2 C2 A3 B3 C3

Date Sampled 03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

Determinand Method TestSample LOD Units

Total Petroleum Hydrocarbons T8 AR 1 mg/kg (100) <3 <1 <1 840 1500 810 360 280 490

TPH (C35-C40) T8 AR 1 mg/kg (100) <3 <1 <1 43 37 42 17 24 31

TPH C10-C40 (sum) T85 AR 1 mg/kg (100) <3 <1 <1 880 1500 850 380 300 520




TPH

SAL Reference 230065 010 230065 011 230065 012 230065 013 230065 014 230065 015 230065 016 230065 017 230065 018

Customer Sample Reference 1 2 3 4 5 6 7 8 9


03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg 7 <1 5 5 <1 <1 <1 (100) <2 (100) <2

TPH (C35-C40) T8 AR 1 mg/kg <1 <1 <1 <1 <1 <1 <1 (100) <2 (100) <2

TPH C10-C40 (sum) T85 AR 1 mg/kg 7 <1 5 5 <1 <1 <1 (100) <2 (100) <2




TPH

SAL Reference 230065 019 230065 020 230065 021 230065 022 230065 023 230065 024 230065 025 230065 026 230065 027



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg 5 38 210 11 6 25 41 29 4

TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <3 9 <1 <1 <1 2 <1 <1

TPH C10-C40 (sum) T85 AR 1 mg/kg 5 38 220 11 6 25 43 29 4




TPH

SAL Reference 230065 028 230065 029 230065 030 230065 031 230065 032 230065 033 230065 034 230065 035 230065 036



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg 24 14 20 34 55 18 31 21 31

TPH (C35-C40) T8 AR 1 mg/kg <1 <1 <1 <1 (100) <3 <1 (100) <2 <1 (100) <2

TPH C10-C40 (sum) T85 AR 1 mg/kg 24 14 20 34 55 18 31 21 31


Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 2 of 9




TPH

SAL Reference 230065 037 230065 038 230065 039 230065 040 230065 041 230065 042 230065 043 230065 044 230065 045



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg 29 25 7 <1 <1 <1 6 24 2

TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2 2 <1 <1 <1 (100) <2 (100) <2 <1

TPH C10-C40 (sum) T85 AR 1 mg/kg 29 25 9 <1 <1 <1 6 24 2




TPH

SAL Reference 230065 046 230065 047 230065 048 230065 049 230065 050 230065 051 230065 052 230065 053 230065 054



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg (100) <2 3 (100) <3 12 3 2 (100) <2 2 <1

TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 <1 <1

TPH C10-C40 (sum) T85 AR 1 mg/kg (100) <2 3 (100) <3 12 3 2 (100) <2 2 <1




TPH

SAL Reference 230065 055 230065 056 230065 057 230065 058 230065 059 230065 060 230065 061 230065 062 230065 063



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg 2 2 (100) <2 7 3 7 (100) <2 (100) <2 (100) <2

TPH (C35-C40) T8 AR 1 mg/kg <1 <1 (100) <2 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2

TPH C10-C40 (sum) T85 AR 1 mg/kg 2 2 (100) <2 7 3 7 (100) <2 (100) <2 (100) <2




TPH

SAL Reference 230065 064 230065 065 230065 066 230065 067 230065 068 230065 069 230065 070 230065 071 230065 072



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg 5 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 (100) 2

TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 (100) <2

TPH C10-C40 (sum) T85 AR 1 mg/kg 5 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 (100) 2






TPH

SAL Reference 230065 073 230065 074

Customer Sample Reference 64 65


03-MAR-2011


Total Petroleum Hydrocarbons T8 AR 1 mg/kg (100) <2 (100) <2

TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2

TPH C10-C40 (sum) T85 AR 1 mg/kg (100) <2 (100) <2




Total and Speciated USEPA16 PAH

SAL Reference 230065 001 230065 002 230065 003 230065 004 230065 005 230065 006 230065 007 230065 008 230065 009

Customer Sample Reference A1 B1 C1 A2 B2 C2 A3 B3 C3


03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.07 0.02 0.02 0.02 (119) <0.02 0.01

Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 (119) <0.02 <0.01 (119) <0.02 0.02 0.01

Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.05 0.04 0.05

Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.03 0.05 0.02 0.05

Phenanthrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.15 0.04 0.06 0.38 0.23 0.39

Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 (119) <0.02 0.01 0.05 0.04 0.06

Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.11 0.02 0.04 0.49 0.48 0.48

Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.11 0.02 0.04 0.38 0.40 0.37

Benzo(a)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.14 0.36 0.15

Chrysene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.16 0.36 0.17

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.13 0.04 0.06 0.52 2.0 0.60

Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.09 0.46 0.11

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 0.02 0.01 0.05 0.25 0.06

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 (119) <0.02 <0.01 0.04 0.13 0.02

Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 (119) <0.02 0.01 0.05 0.23 0.06

PAH(total) T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.85 0.26 0.36 2.5 5.0 2.6





SAL Reference 230065 010 230065 011 230065 012 230065 013 230065 014 230065 015 230065 016 230065 017 230065 018



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01

Acenaphthylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01

Acenaphthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01

Fluorene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 0.01

Phenanthrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.01 0.01 0.05

Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 0.02

Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.02 0.01 0.05

Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.03 0.01 0.05

Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.03 <0.01 0.02

Chrysene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.02 <0.01 0.02

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.05 0.01 0.02

Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.01 <0.01 0.01

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.01 <0.01 <0.01

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01

Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01

PAH(total) T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.18 0.04 0.24







SAL Reference 230065 019 230065 020 230065 021 230065 022 230065 023 230065 024 230065 025 230065 026 230065 027



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.01

Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 <0.01

Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 <0.01

Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 <0.01

Phenanthrene T149 AR 0.01 mg/kg 0.05 0.04 0.17 0.02 (119) <0.02 0.05 0.12 0.05 0.03

Anthracene T149 AR 0.01 mg/kg 0.02 0.02 0.04 (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 0.01

Fluoranthene T149 AR 0.01 mg/kg 0.14 0.06 0.17 0.02 (119) <0.02 0.05 0.12 0.07 0.03

Pyrene T149 AR 0.01 mg/kg 0.12 0.06 0.13 0.02 (119) <0.02 0.03 0.10 0.05 0.04

Benzo(a)Anthracene T149 AR 0.01 mg/kg 0.06 0.06 0.06 0.02 (119) <0.02 0.03 0.04 0.04 0.02

Chrysene T149 AR 0.01 mg/kg 0.06 0.06 0.06 (119) <0.02 (119) <0.02 0.02 0.04 0.04 0.02

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg 0.21 0.40 0.21 0.02 0.02 0.02 0.06 0.14 0.02

Benzo(a)Pyrene T149 AR 0.01 mg/kg 0.06 0.11 0.04 (119) <0.02 (119) <0.02 0.02 0.04 0.07 0.02

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg 0.03 0.04 0.02 (119) <0.02 (119) <0.02 0.02 0.02 0.05 0.01

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg 0.02 0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 <0.01

Benzo(ghi)Perylene T149 AR 0.01 mg/kg 0.03 0.04 0.02 (119) <0.02 (119) <0.02 0.02 0.04 0.05 0.01

PAH(total) T149 AR 0.01 mg/kg 0.80 0.91 1.0 0.10 0.02 0.26 0.64 0.56 0.22





SAL Reference 230065 028 230065 029 230065 030 230065 031 230065 032 230065 033 230065 034 230065 035 230065 036



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.03

Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Phenanthrene T149 AR 0.01 mg/kg 0.07 0.04 0.02 0.02 0.02 (119) <0.02 0.02 0.02 0.03

Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Fluoranthene T149 AR 0.01 mg/kg 0.07 0.04 0.02 0.02 0.02 (119) <0.02 0.02 0.02 0.03

Pyrene T149 AR 0.01 mg/kg 0.05 0.04 (119) <0.02 0.02 0.02 (119) <0.02 0.02 (119) <0.02 0.03

Benzo(a)Anthracene T149 AR 0.01 mg/kg 0.03 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Chrysene T149 AR 0.01 mg/kg 0.03 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg 0.03 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03

PAH(total) T149 AR 0.01 mg/kg 0.28 0.12 0.04 0.18 0.06 (119) <0.02 0.06 0.04 0.12







SAL Reference 230065 037 230065 038 230065 039 230065 040 230065 041 230065 042 230065 043 230065 044 230065 045



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 0.02 (119) <0.02

Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 (119) <0.02 (119) <0.02

Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 (119) <0.02 (119) <0.02

Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 (119) <0.02 (119) <0.02

Phenanthrene T149 AR 0.01 mg/kg (119) <0.02 0.02 0.01 (119) <0.02 <0.01 (9) <0.02 0.03 (119) <0.02 (119) <0.02

Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.01 (119) <0.02 (119) <0.02

Fluoranthene T149 AR 0.01 mg/kg 0.02 0.04 0.01 (119) <0.02 0.01 (9) <0.02 0.13 0.03 (119) <0.02

Pyrene T149 AR 0.01 mg/kg (119) <0.02 0.02 <0.01 (119) <0.02 <0.01 <0.02 0.11 0.02 (119) <0.02

Benzo(a)Anthracene T149 AR 0.01 mg/kg (119) <0.02 0.04 <0.01 (119) <0.02 <0.01 (9) <0.02 0.10 0.03 (119) <0.02

Chrysene T149 AR 0.01 mg/kg (119) <0.02 0.04 <0.01 (119) <0.02 <0.01 (9) <0.02 0.08 0.02 (119) <0.02

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 0.05 <0.01 (119) <0.02 <0.01 (9) <0.02 0.13 0.02 (119) <0.02

Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 0.04 <0.01 (119) <0.02 <0.01 (9) <0.02 0.07 0.02 (119) <0.02

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.03 (119) <0.02 (119) <0.02

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.01 (119) <0.02 (119) <0.02

Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.02 (119) <0.02 (119) <0.02

PAH(total) T149 AR 0.01 mg/kg 0.02 0.29 0.02 (119) <0.02 0.01 (9) <0.02 0.72 0.16 (119) <0.02





SAL Reference 230065 046 230065 047 230065 048 230065 049 230065 050 230065 051 230065 052 230065 053 230065 054



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Acenaphthylene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Acenaphthene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Fluorene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Phenanthrene T149 AR 0.01 mg/kg <0.01 0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 0.01

Anthracene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Fluoranthene T149 AR 0.01 mg/kg <0.01 0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Pyrene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Chrysene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01

PAH(total) T149 AR 0.01 mg/kg <0.01 0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 0.01







SAL Reference 230065 055 230065 056 230065 057 230065 058 230065 059 230065 060 230065 061 230065 062 230065 063



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Acenaphthylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Acenaphthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Fluorene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Phenanthrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Chrysene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

PAH(total) T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02





SAL Reference 230065 064 230065 065 230065 066 230065 067 230065 068 230065 069 230065 070 230065 071 230065 072



03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011

03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Acenaphthylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Acenaphthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Fluorene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Phenanthrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 0.02

Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.02 0.02

Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.02 0.02

Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.02 (119) <0.02

Chrysene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02

PAH(total) T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.06 0.06







SAL Reference 230065 073 230065 074

Customer Sample Reference 64 65


03-MAR-2011


Naphthalene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Fluorene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Phenanthrene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Anthracene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Pyrene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Benzo(a)Anthracene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Chrysene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 <0.01

Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 <0.01

PAH(total) T149 AR 0.01 mg/kg (119) <0.02 <0.01



Water Analysed as Water

TPH

SAL Reference 230065 075

Customer Sample Reference ANAEROBIC DIGESTATE LIQUOR



Total Petroleum Hydrocarbons T81 AR 0.01 mg/l 270

TPH (C35-C40) T81 AR 0.01 mg/l 21.00

TPH C10-C40 (sum) T85 AR 0.01 mg/l 290



Water Analysed as Water


SAL Reference 230065 075

Customer Sample Reference ANAEROBIC DIGESTATE LIQUOR



Naphthalene T149 AR 0.01 µg/l 6.0

Acenaphthylene T149 AR 0.01 µg/l 1.7

Acenaphthene T149 AR 0.01 µg/l (9) <1.0

Fluorene T149 AR 0.01 µg/l (9) <1.0

Phenanthrene T149 AR 0.01 µg/l 3.2

Anthracene T149 AR 0.01 µg/l (9) <1.0

Fluoranthene T149 AR 0.01 µg/l (9) <1.0

Pyrene T149 AR 0.01 µg/l (9) <1.0

Benzo(a)Anthracene T149 AR 0.01 µg/l (9) <1.0

Chrysene T149 AR 0.01 µg/l (9) <1.0

Benzo(b/k)Fluoranthene T149 AR 0.01 µg/l (9) <1.0

Benzo(a)Pyrene T149 AR 0.01 µg/l (9) <1.0

Indeno(123-cd)Pyrene T149 AR 0.01 µg/l (9) <1.0

Dibenzo(ah)Anthracene T149 AR 0.01 µg/l (9) <1.0

Benzo(ghi)Perylene T149 AR 0.01 µg/l (9) <1.0

PAH(total) T149 AR 0.01 µg/l 11



Index to symbols used in 230065-1

Method Index

Accreditation Summary

Value Description

AR As Received

100 LOD determined by sample aliquot used for analysis

119 LOD raised due to limited sample

9 LOD raised due to dilution of sample

U Analysis is UKAS accredited

N Analysis is not UKAS accredited

Value Description

T81 GC/FID (LV)

T8 GC/FID

T85 Calc

T149 GC/MS (SIR)

Determinand Method TestSample LOD Units Symbol SAL References

Total Petroleum Hydrocarbons T81 AR 0.01 mg/l U 075

TPH (C35-C40) T81 AR 0.01 mg/l N 075

TPH C10-C40 (sum) T85 AR 0.01 mg/l N 075

Total Petroleum Hydrocarbons T8 AR 1 mg/kg U 001-074

TPH (C35-C40) T8 AR 1 mg/kg N 001-074

TPH C10-C40 (sum) T85 AR 1 mg/kg N 001-074

Naphthalene T149 AR 0.01 mg/kg U 001-074

Acenaphthylene T149 AR 0.01 mg/kg U 001-074

Acenaphthene T149 AR 0.01 mg/kg U 001-074

Fluorene T149 AR 0.01 mg/kg U 001-074

Phenanthrene T149 AR 0.01 mg/kg U 001-074

Anthracene T149 AR 0.01 mg/kg U 001-074

Fluoranthene T149 AR 0.01 mg/kg U 001-074

Pyrene T149 AR 0.01 mg/kg U 001-074

Benzo(a)Anthracene T149 AR 0.01 mg/kg U 001-074

Chrysene T149 AR 0.01 mg/kg U 001-074

Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg U 001-074

Benzo(a)Pyrene T149 AR 0.01 mg/kg U 001-074

Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg U 001-074

Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg U 001-074

Benzo(ghi)Perylene T149 AR 0.01 mg/kg U 001-074

PAH(total) T149 AR 0.01 mg/kg U 001-074

Naphthalene T149 AR 0.01 µg/l U 075

Acenaphthylene T149 AR 0.01 µg/l U 075

Acenaphthene T149 AR 0.01 µg/l U 075

Fluorene T149 AR 0.01 µg/l U 075

Phenanthrene T149 AR 0.01 µg/l U 075

Anthracene T149 AR 0.01 µg/l U 075

Fluoranthene T149 AR 0.01 µg/l U 075

Pyrene T149 AR 0.01 µg/l U 075

Benzo(a)Anthracene T149 AR 0.01 µg/l U 075

Chrysene T149 AR 0.01 µg/l U 075

Benzo(b/k)Fluoranthene T149 AR 0.01 µg/l U 075

Benzo(a)Pyrene T149 AR 0.01 µg/l U 075

Indeno(123-cd)Pyrene T149 AR 0.01 µg/l U 075

Dibenzo(ah)Anthracene T149 AR 0.01 µg/l U 075

Benzo(ghi)Perylene T149 AR 0.01 µg/l U 075

PAH(total) T149 AR 0.01 µg/l U 075



Anaerobic Digest Experiment

pH H2O CondLims ID No Details Details Site Type Date - μs/cm

1110300554 1 - A1 Top Soil Soil 26/11/2010 5.27 1091110300555 2 - B1 Top Soil Soil 26/11/2010 5.19 1121110300556 3 - C1 Top Soil Soil 26/11/2010 5.63 1161110300557 4 - A2 Anaerobic Digestate Cake Soil 26/11/2010 7.50 94351110300558 5 - B2 Anaerobic Digestate Cake Soil 26/11/2010 7.49 129451110300559 6 - C2 Anaerobic Digestate Cake Soil 26/11/2010 7.53 90001110300560 7 - A3 PAS Green Compost Soil 26/11/2010 8.02 145801110300561 8 - B3 PAS Green Compost Soil 26/11/2010 7.91 117451110300562 9 - C3 PAS Green Compost Soil 26/11/2010 7.83 136201110300563 10 - - Liquor Digestate Soil 26/11/2010 7.54 366001110300564 1 Pure Treat2 1B Soil 01/02/2011 6.03 2781110300565 2 Pure Treat2 1B Soil 01/02/2011 5.79 1241110300566 3 Planted Treat2 1B Soil 01/02/2011 7.79 23611110300567 4 Planted Treat2 1B Soil 01/02/2011 6.28 3111110300568 5 Pure Treat2 11B Soil 01/02/2011 5.87 2421110300569 6 Pure Treat2 11B Soil 01/02/2011 6.00 2721110300570 7 Planted Treat2 11B Soil 01/02/2011 6.52 6201110300571 8 Planted Treat2 11B Soil 01/02/2011 6.16 4141110300572 9 Pure Treat2 21B Soil 01/02/2011 5.66 1361110300573 10 Planted Treat2 21B Soil 01/02/2011 6.70 7191110300574 11 Pure Treat3 5C Soil 01/02/2011 7.95 123751110300575 12 Pure Treat3 5C Soil 01/02/2011 7.91 99301110300576 13 Planted Treat3 5C Soil 01/02/2011 6.89 8671110300577 14 Planted Treat3 5C Soil 01/02/2011 7.36 16041110300578 15 Pure Treat3 14C Soil 01/02/2011 7.93 114301110300579 16 Pure Treat3 14C Soil 01/02/2011 7.87 126601110300580 17 Planted Treat3 14C Soil 01/02/2011 7.20 14631110300581 18 Planted Treat3 14C Soil 01/02/2011 6.58 5631110300582 19 Pure Treat3 20C Soil 01/02/2011 7.92 98851110300583 20 Planted Treat3 20C Soil 01/02/2011 6.97 14281110300584 21 Pure Treat4 3D Soil 01/02/2011 7.84 100951110300585 22 Pure Treat4 3D Soil 01/02/2011 7.84 111751110300586 23 Planted Treat4 3D Soil 01/02/2011 7.37 11191110300587 24 Planted Treat4 3D Soil 01/02/2011 8.04 30231110300588 25 Pure Treat4 9D Soil 01/02/2011 7.89 128401110300589 26 Pure Treat4 9D Soil 01/02/2011 7.94 129901110300590 27 Planted Treat4 9D Soil 01/02/2011 7.61 28261110300591 28 Planted Treat4 9D Soil 01/02/2011 7.94 47401110300592 29 Pure Treat4 15D Soil 01/02/2011 7.75 131101110300593 30 Planted Treat4 15D Soil 01/02/2011 7.41 19881110300594 31 Pure Treat5 7E Soil 01/02/2011 6.12 2351110300595 32 Pure Treat5 7E Soil 01/02/2011 6.13 4581110300596 33 Planted Treat5 7E Soil 01/02/2011 6.72 10201110300597 34 Planted Treat5 7E Soil 01/02/2011 6.35 5541110300598 35 Pure Treat5 12E Soil 01/02/2011 6.44 2431110300599 36 Pure Treat5 12E Soil 01/02/2011 6.30 2311110300600 37 Planted Treat5 12E Soil 01/02/2011 6.18 2641110300601 38 Planted Treat5 12E Soil 01/02/2011 7.20 23431110300602 39 Pure Treat5 19E Soil 01/02/2011 6.21 3461110300603 40 Planted Treat5 19E Soil 01/02/2011 6.17 275

1110300604 41 Pure Treat6 6F Soil 01/02/2011 6.16 1641110300605 42 Pure Treat6 6F Soil 01/02/2011 6.29 1431110300606 43 Planted Treat6 6F Soil 01/02/2011 6.38 4111110300607 44 Planted Treat6 6F Soil 01/02/2011 5.66 1721110300608 45 Pure Treat6 13F Soil 01/02/2011 5.71 871110300609 46 Pure Treat6 13F Soil 01/02/2011 5.73 941110300610 47 Planted Treat6 13F Soil 01/02/2011 6.86 7011110300611 48 Planted Treat6 13F Soil 01/02/2011 6.77 6081110300612 49 Pure Treat6 18F Soil 01/02/2011 5.48 851110300613 50 Planted Treat6 18F Soil 01/02/2011 6.74 10021110300614 51 Pure Treat7 2G Soil 01/02/2011 5.92 1371110300615 52 Pure Treat7 2G Soil 01/02/2011 5.87 1331110300616 53 Planted Treat7 2G Soil 01/02/2011 6.25 4141110300617 54 Planted Treat7 2G Soil 01/02/2011 5.75 1821110300618 55 Pure Treat7 10G Soil 01/02/2011 5.97 1591110300619 56 Pure Treat7 10G Soil 01/02/2011 5.94 1381110300620 57 Planted Treat7 10G Soil 01/02/2011 6.86 10801110300621 58 Planted Treat7 10G Soil 01/02/2011 6.75 6781110300622 59 Pure Treat7 16G Soil 01/02/2011 5.62 981110300623 60 Planted Treat7 16G Soil 01/02/2011 6.00 2961110300624 61 Alder Treat1 4A Soil 01/02/2011 6.46 2161110300625 62 Alder Treat1 4A Soil 01/02/2011 6.34 1851110300626 63 Alder Treat1 8A Soil 01/02/2011 6.15 1441110300627 64 Alder Treat1 8A Soil 01/02/2011 6.08 1501110300628 65 Alder Treat1 17A Soil 01/02/2011 5.71 110

pH H2O CondLims ID No Details Details Site Type Date - μs/cm

1110300563 10 - - Liquor Digestate Soil 26/11/2010 7.54 36600

TIC = Total Inorganic CarbonTOC = Total Organic CarbonO.M. = Organic Matter Total nut

Total N Total C TIC TOC C/N ratio O.M. N-NH4 N-NO3 K Ca Mg Na% % % % - % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.12 1.83 0.00 1.83 15.00 3.15 4.2 1.35 3436 1339 1707 1260.12 1.87 0.00 1.87 15.46 3.23 6.5 1.59 2530 1064 1562 890.13 1.88 0.00 1.88 14.14 3.24 5.3 1.44 3385 1529 1770 1293.45 46.81 0.07 46.74 13.57 80.58 5740.2 19.13 1984 14682 1096 27064.16 45.27 0.07 45.21 10.87 77.94 14365.0 34.20 2921 20132 1637 41283.14 47.15 0.07 47.08 15.02 81.17 5474.3 30.83 1796 16081 1049 26681.89 21.08 0.75 20.34 10.75 35.06 920.6 8.30 9602 52639 4065 23341.91 21.75 0.72 21.03 11.01 36.25 975.6 8.56 9327 61850 4235 24481.84 20.00 0.77 19.23 10.46 33.16 705.2 6.24 9895 56505 3895 2393

15.73 61.05 0.00 61.05 3.88 105.25 208651.6 358.55 34431 32454 5264 570930.12 1.54 0.00 1.54 13.40 2.66 0.0 4.76 2727 1249 1496 980.11 1.67 0.00 1.67 15.15 2.87 0.0 3.69 3480 1442 2014 1120.41 5.12 0.25 4.87 11.93 8.39 326.3 2.70 4176 10522 2618 3130.12 1.66 0.00 1.66 13.61 2.86 48.5 4.06 3765 1706 1981 1460.11 1.59 0.00 1.59 14.06 2.74 22.4 2.98 3817 1454 2227 1400.08 1.12 0.00 1.12 14.29 1.92 68.2 5.68 3416 1150 1913 1230.14 1.83 0.00 1.83 12.96 3.15 283.8 6.08 3838 2190 2637 1450.11 1.53 0.00 1.53 13.42 2.64 101.2 3.85 3851 2088 2092 1430.15 1.85 0.00 1.85 12.66 3.19 0.0 3.48 2963 1676 1682 1220.20 2.37 0.00 2.37 11.80 4.09 109.3 2.73 3149 3842 1680 1511.60 18.88 0.90 17.98 11.22 30.99 2681.6 11.72 8742 57077 4000 20881.60 21.32 0.94 20.38 12.71 35.14 2065.9 10.67 7192 59735 4050 18280.16 2.04 0.00 2.04 12.82 3.51 119.0 1.64 3956 3416 2263 1850.20 2.56 0.04 2.51 12.32 4.33 570.2 3.51 4512 4009 2356 2411.54 17.27 0.80 16.48 10.73 28.40 2082.3 9.00 8619 52387 4185 20671.58 18.37 0.84 17.53 11.08 30.23 3135.2 14.61 8882 53204 4087 22290.21 2.46 0.05 2.41 11.60 4.16 218.0 2.13 3342 4488 1713 2450.16 1.93 0.00 1.93 12.08 3.33 46.8 2.34 3466 2539 1783 1781.56 18.43 0.88 17.55 11.23 30.26 2546.9 13.82 9117 56303 4344 22120.24 3.06 0.00 3.06 12.65 5.28 92.0 4.79 3179 6458 1552 2441.69 19.73 0.77 18.96 11.19 32.69 5144.2 11.70 8551 54075 4222 23771.70 20.29 0.80 19.49 11.49 33.61 6074.6 22.58 8419 56136 4202 24740.17 2.08 0.03 2.04 11.94 3.52 240.9 2.70 3520 3112 2302 1880.31 3.70 0.14 3.56 11.48 6.14 716.7 4.70 4403 7100 2566 3371.67 18.61 0.69 17.92 10.76 30.89 5848.5 11.03 8239 54107 4458 24031.61 18.73 0.77 17.96 11.13 30.96 5043.8 13.54 7835 53138 3557 22690.27 3.26 0.12 3.14 11.83 5.41 670.5 2.35 3656 6130 2366 2900.36 4.26 0.17 4.09 11.31 7.06 753.4 2.76 4234 8003 2445 4291.66 19.29 0.80 18.49 11.15 31.88 4591.9 10.44 8682 58139 4291 25150.24 2.87 0.09 2.77 11.80 4.78 224.4 2.59 3109 4241 1723 2400.12 1.68 0.00 1.68 14.11 2.89 3.4 1.54 2621 2103 1763 1140.12 1.72 0.00 1.72 13.87 2.97 1.0 2.03 2572 1894 1762 1110.15 1.88 0.00 1.88 12.82 3.25 173.1 2.53 2735 2999 1881 1530.14 1.80 0.00 1.80 13.32 3.10 166.4 2.80 2533 1776 1756 1070.11 1.54 0.00 1.54 13.96 2.65 8.3 2.87 2966 1616 1985 1050.11 1.55 0.00 1.55 14.65 2.68 2.0 2.60 3483 1661 2125 1200.12 1.67 0.00 1.67 13.72 2.89 15.0 2.40 3205 1913 1893 1230.23 3.16 0.10 3.06 13.38 5.28 309.2 2.77 2902 10578 1900 2740.12 1.77 0.00 1.77 14.26 3.05 13.4 1.95 3270 1706 1925 1300.11 1.70 0.00 1.70 15.14 2.92 0.5 2.78 2379 1339 1284 114

0.12 1.63 0.00 1.63 13.28 2.82 0.4 2.36 3581 1828 1975 1270.12 1.57 0.00 1.57 13.05 2.70 0.3 3.70 4267 2226 2135 1550.13 1.61 0.00 1.61 12.77 2.77 259.5 2.42 3351 1442 1736 1510.11 1.65 0.00 1.65 14.58 2.84 17.3 3.25 4144 1386 1985 1670.10 1.37 0.00 1.37 13.95 2.36 0.2 1.55 2880 1453 1619 1250.11 1.46 0.00 1.46 13.75 2.51 0.3 2.32 2791 1177 1434 1080.15 1.86 0.00 1.86 12.81 3.20 192.7 1.60 2971 2648 1480 1750.13 1.49 0.00 1.49 11.61 2.56 425.0 3.08 2939 1761 1558 1760.10 1.40 0.00 1.40 13.72 2.41 2.1 2.32 3081 1213 1468 1380.14 1.70 0.00 1.70 11.78 2.92 246.4 1.74 3119 2117 1592 2060.12 1.71 0.00 1.71 14.12 2.95 4.1 1.77 4265 1811 2376 1370.11 1.62 0.00 1.62 14.29 2.78 24.6 6.87 3440 1679 2243 1110.13 1.67 0.00 1.67 13.07 2.88 53.3 3.55 3822 2035 2309 1530.13 1.79 0.00 1.79 14.13 3.09 15.0 5.89 3462 1693 2383 1190.13 1.70 0.00 1.70 13.59 2.93 0.3 4.05 3095 1736 2111 1000.12 1.67 0.00 1.67 13.70 2.88 1.1 2.37 2984 1751 2031 1000.17 2.08 0.00 2.08 12.40 3.59 437.7 2.24 3464 2317 2288 1750.16 1.96 0.00 1.96 12.58 3.38 197.9 1.72 3417 2355 1977 1610.13 1.61 0.00 1.61 12.80 2.78 1.2 3.17 3310 1591 1753 1300.15 1.85 0.00 1.85 12.76 3.19 85.4 2.83 3048 1607 1651 1320.07 0.95 0.00 0.95 12.86 1.64 2.7 1.64 4024 1351 2220 1100.10 1.34 0.00 1.34 13.62 2.30 1.8 1.78 3504 1897 2512 1170.11 1.49 0.00 1.49 13.55 2.57 1.1 2.98 3058 1530 2100 1060.12 1.65 0.00 1.65 14.07 2.84 0.4 1.29 3326 1822 2263 1100.10 1.42 0.00 1.42 13.75 2.44 0.3 2.12 3060 1311 1657 114

Based as a liquid Based as a liquid

Total N Total C TIC TOC C/N ratio O.M. N-NH4 N-NO3 K Ca Mg Na% % % % - % mg/l mg/l mg/l mg/l mg/l mg/l

0.276 1.071 0.00 1.07 3.89 1.85 2774 4.77 604 569 92 1002

trients contents including PTEs

Al Fe Mn P S Ba Cd Co Cr Cu Ni Pb Srmg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

13933 12730 454 692 233 196 0.24 4.7 22 9 7 33 1311330 12438 423 706 248 207 0.23 4.4 17 10 7 32 1114347 13802 480 722 247 183 0.25 5.0 20 11 7 37 153401 21586 77 6390 6855 43 0.28 2.0 115 27 8 13 472559 39184 114 13267 10373 56 0.52 3.4 145 51 12 23 832723 22461 68 7050 7598 25 0.50 1.8 117 30 6 14 50

16495 17680 376 2905 2377 171 0.48 7.5 30 81 20 113 11315537 18730 371 2817 2389 150 0.45 7.9 27 79 20 123 11916290 16443 356 2894 2417 169 0.45 7.0 28 85 20 117 1103883 74547 232 27321 16683 77 0.67 9.2 368 101 48 52 157

10937 10335 390 487 152 81 0.29 4.2 17 18 7 18 1114225 13695 481 664 194 111 0.38 5.3 22 14 10 24 1515166 14699 473 1081 527 114 0.58 5.5 23 21 11 46 3314450 16239 513 667 207 106 0.40 5.5 22 10 10 23 1615251 15436 418 551 204 170 0.34 5.3 22 11 9 23 1513462 13703 338 455 216 323 0.29 5.3 24 13 8 19 1215571 15979 457 625 257 157 0.36 6.0 24 13 11 26 1515066 14288 462 619 246 173 0.36 5.3 21 10 9 31 1614102 13034 450 629 257 118 0.35 4.7 17 11 8 31 1513628 12661 434 676 336 119 0.34 4.7 18 12 8 35 1918294 20476 406 2846 2248 161 0.61 8.0 33 67 21 97 11216097 19383 391 2811 2164 163 0.65 8.0 30 68 21 97 11515775 14641 460 568 318 144 0.36 5.4 22 11 10 23 2116479 14983 452 592 328 145 0.34 5.6 23 12 10 24 2216740 21068 386 2717 2137 175 0.63 8.1 29 70 19 94 10317635 21979 379 2762 2226 185 0.64 8.6 31 71 21 99 10412966 12017 430 679 335 101 0.31 4.4 17 11 8 27 1914669 13054 490 664 268 112 0.35 4.8 18 10 8 28 1717805 19508 413 2789 2121 152 0.61 8.4 34 68 21 98 10413021 11046 339 760 396 101 0.32 3.9 16 12 7 29 2214809 18539 423 2769 2185 150 1.04 7.0 29 61 18 104 9814073 21903 416 2784 2120 140 0.63 7.8 34 65 19 94 10313674 15606 399 513 293 133 0.33 5.6 22 11 10 21 1815113 16177 380 693 447 174 0.37 5.7 24 18 11 30 2715071 21242 431 2980 2258 141 0.62 7.6 32 68 19 94 9914310 20752 364 2779 2107 173 0.67 8.0 29 68 20 90 10313614 14436 396 652 373 134 0.36 5.4 21 14 10 25 2213949 15816 460 776 802 190 0.38 5.6 25 18 10 30 2715439 22020 387 2788 2270 144 0.63 8.0 28 72 21 92 13112769 12675 428 651 335 98 0.33 4.5 17 12 8 33 1911707 13775 464 653 222 139 0.34 4.6 19 11 8 25 1511576 12964 460 642 321 219 0.33 4.6 19 13 8 25 1311507 13397 451 655 262 136 0.35 4.8 19 12 8 32 1511068 12716 466 626 231 141 0.38 4.5 19 10 8 33 1312018 13336 474 630 210 170 0.36 4.8 20 10 9 34 1513607 15108 462 613 189 140 0.37 5.0 21 11 8 29 1513214 13329 448 774 224 147 0.36 4.7 20 10 8 34 1611227 8338 275 774 386 83 0.27 3.2 14 13 6 37 2213592 15550 472 678 228 152 0.37 4.9 20 11 8 34 1410993 8888 299 635 188 77 0.26 3.4 15 11 6 30 12

14605 14559 519 654 211 116 0.37 5.2 20 10 9 34 1717060 15363 646 638 224 134 0.38 5.4 22 10 9 27 1913339 12610 481 663 197 117 0.33 4.7 20 12 8 20 1615889 14566 514 689 202 137 0.36 4.5 25 16 9 21 1612950 11978 490 648 185 95 0.31 4.5 16 7 7 30 1412733 11142 473 642 190 97 0.30 4.3 15 7 7 32 1312672 11000 447 671 248 95 0.29 4.1 16 10 7 30 1612981 11709 472 679 206 99 0.29 4.5 16 8 7 29 1513241 10911 459 638 187 100 0.29 3.6 15 7 6 26 1412934 10876 393 683 228 102 0.28 4.1 16 8 7 26 1517077 15679 481 504 229 176 0.32 5.9 23 9 10 19 1914547 14735 448 478 217 142 0.30 5.6 22 9 10 21 1615923 15192 476 505 232 154 0.30 5.7 21 9 10 17 2214957 15217 454 496 236 157 0.32 5.7 23 10 10 18 1713421 14358 433 541 228 157 0.33 5.0 23 10 9 24 1613427 13260 429 527 232 148 0.31 5.0 21 9 9 22 1614308 14153 410 610 289 145 0.32 5.5 22 11 10 23 1814124 13141 410 590 281 138 0.32 5.0 21 11 9 24 1915084 12784 497 600 238 116 0.32 4.8 19 8 8 32 1813816 11910 442 603 242 105 0.30 4.5 17 8 8 29 1913566 13474 337 380 143 118 0.25 4.8 19 11 8 14 1514899 14731 426 461 213 185 0.30 5.9 22 11 10 27 2013155 12676 399 439 196 130 0.28 5.0 20 9 9 17 1613976 12900 329 549 239 209 0.33 5.3 20 9 9 21 1913116 11319 437 553 187 100 0.29 4.5 19 10 7 23 15

Based as a liquid

Al Fe Mn P S Ba Cd Co Cr Cu Ni Pb Srmg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l

68 1308 4 479 293 1 0.01 0.2 6 2 1 1 3

Dry basis Wet basisField Field Visible

Zn As B Hg Zr Mo Sb Se Sn Moisture Moisture contaminantsmg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % -

36 5.8 6 0.01 6.2 2.1 1.2 0.8 1.2 22.01 18.04 None37 4.6 5 0.00 0.6 2.2 1.1 0.9 1.0 22.94 18.66 None37 6.9 7 0.01 4.6 1.9 1.2 0.9 1.3 21.47 17.67 None

198 0.0 21 0.02 3.4 5.4 3.1 1.0 3.4 185.02 64.91 None330 0.0 15 0.03 4.1 7.6 4.7 1.7 5.2 349.33 77.74 None225 0.0 17 0.02 3.5 5.8 3.5 0.9 3.7 175.89 63.75 None240 8.0 14 0.11 25.2 1.7 3.3 1.1 15.4 97.71 49.42 None224 7.4 13 0.08 24.7 1.8 3.6 1.1 6.6 97.22 49.30 None236 7.9 15 0.10 25.4 1.7 3.4 1.0 5.0 76.53 43.35 None616 0.0 54 0.00 6.5 25.2 8.7 3.7 9.3 5600.00 98.25 None35 6.4 6 0.05 3.7 1.3 0.8 0.5 1.1 25.13 20.08 None42 7.4 7 0.07 2.3 1.7 1.0 0.8 1.2 19.94 16.62 None79 4.5 8 0.08 8.3 1.4 1.4 0.7 2.4 32.60 24.59 None43 4.5 7 0.06 4.7 1.6 1.1 0.7 1.3 24.24 19.51 None51 5.0 6 0.05 5.0 1.7 1.1 0.7 1.1 29.00 22.48 None42 4.2 5 0.05 4.7 1.5 1.0 0.5 1.0 14.31 12.52 None58 5.3 6 0.06 4.5 1.7 1.3 0.7 1.3 13.63 12.00 None46 4.9 7 0.06 5.0 1.8 1.1 0.7 1.2 18.72 15.77 None33 4.3 7 0.06 2.7 2.4 1.0 0.8 1.3 27.64 21.66 None41 4.3 7 0.06 5.0 2.3 1.0 0.9 1.5 25.64 20.41 None

222 8.0 14 0.17 4.3 1.6 3.4 0.9 6.2 93.09 48.21 None226 7.9 13 0.17 25.6 1.7 5.2 1.0 6.4 89.52 47.24 None49 4.8 8 0.06 5.9 1.7 1.2 0.8 1.4 31.29 23.83 None49 4.6 8 0.06 7.1 1.5 1.2 0.8 1.4 26.96 21.24 None


229 8.4 15 0.17 25.3 1.7 3.8 1.1 6.7 82.00 45.05 None42 3.9 6 0.07 6.5 1.8 0.9 0.8 2.3 23.29 18.89 None



214 8.7 15 0.19 22.0 2.1 3.3 0.9 6.3 125.27 55.61 None43 4.0 7 0.05 0.8 1.9 1.0 0.9 1.3 33.11 24.88 None38 4.7 5 0.06 0.5 2.0 0.9 0.8 1.2 22.24 18.19 None39 4.4 5 0.05 0.6 2.0 1.0 0.7 1.6 21.49 17.69 None41 5.5 5 0.05 0.6 1.7 1.0 0.8 1.2 20.67 17.13 None47 5.4 5 0.05 0.5 1.8 0.9 0.7 1.1 20.28 16.86 None37 5.6 5 0.06 0.6 1.7 1.0 0.7 1.2 20.40 16.94 None40 5.2 6 0.05 4.6 1.9 1.0 0.7 1.2 18.76 15.80 None36 5.6 6 0.06 4.2 1.8 1.0 0.7 1.1 22.65 18.47 None36 2.9 5 0.05 5.5 1.2 0.8 0.6 1.9 20.76 17.19 None42 6.3 6 0.06 3.9 1.9 1.0 0.7 1.4 21.64 17.79 None23 2.7 5 0.04 4.9 1.2 0.7 0.7 2.8 21.73 17.85 None

37 4.2 7 0.07 5.2 1.7 1.0 0.9 1.4 21.36 17.60 None39 4.4 8 0.05 7.6 1.9 1.1 1.0 2.1 22.97 18.68 None34 6.3 6 0.05 4.8 1.7 1.0 0.6 1.2 21.65 17.79 None38 12.2 7 0.06 6.2 1.5 1.1 0.8 1.3 20.81 17.23 None30 3.3 6 0.04 4.2 1.6 0.9 0.8 1.2 23.09 18.76 None30 3.3 6 0.04 3.2 1.6 0.8 0.8 1.1 20.80 17.22 None35 3.0 6 0.04 4.8 1.5 0.8 0.8 1.3 23.47 19.01 None33 3.0 6 0.05 4.7 1.5 0.9 0.8 1.2 28.47 22.16 None29 3.0 6 0.04 4.3 1.3 0.8 0.7 1.1 21.57 17.74 None31 2.8 6 0.05 7.0 1.4 0.9 0.8 1.8 22.56 18.41 None57 5.2 8 0.06 6.6 1.5 1.2 0.9 1.3 23.40 18.97 None38 5.0 7 0.05 1.7 1.5 1.1 0.7 1.1 18.56 15.65 None53 4.7 8 0.05 2.7 1.4 1.1 0.8 1.1 24.86 19.91 None43 5.0 7 0.05 1.5 1.5 1.1 0.8 1.3 27.16 21.36 None39 5.3 6 0.06 1.5 1.7 1.0 0.7 1.2 21.59 17.75 None38 5.6 6 0.05 1.5 1.9 1.0 0.7 1.0 26.29 20.82 None42 5.2 6 0.06 2.6 1.7 1.1 0.8 1.2 32.54 24.55 None41 5.7 7 0.06 3.5 1.8 1.1 0.8 1.3 28.15 21.96 None35 4.0 7 0.05 5.4 2.1 1.0 0.8 1.2 28.92 22.43 None32 3.8 6 0.06 2.9 2.0 0.9 0.8 1.2 25.02 20.01 None46 3.3 5 0.04 3.7 1.0 1.0 0.5 1.2 26.20 20.76 None41 5.0 6 0.06 2.0 1.3 1.1 0.7 1.3 30.24 23.22 None39 4.2 6 0.04 3.1 1.4 1.0 0.6 1.1 31.46 23.93 None43 5.2 7 0.06 2.3 1.6 1.0 0.7 1.2 27.41 21.51 None38 3.5 6 0.06 4.4 1.6 0.9 0.7 1.6 26.16 20.73 None

Zn As B Hg Zr Mo Sb Se Snmg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l

11 0.0 1 0.00 0.1 0.4 0.2 0.1 0.2


Appendix 7 Preliminary Results Baseline chemical composition of unamended soil, compost, AD products and treatments

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KC

aM

gN

aAl

FeM

nP

S-

μs/c

m%

%%

%-

%m

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

Top

Soi

l5.

3611

20.

11.

90.

01.

914

.93.

25.

31.

531

1713

1116

8011

513

203

1299

045

370

624

2A

naer

obic

Dig

esta

te C

ake

7.51

1046

03.

646

.40.

146

.313

.279

.985

26.5

28.1

2234

1696

512

6031

6728

9427

743

8689

0282

75P

AS G

reen

Com

post

7.92

1331

51.

920

.90.

720

.210

.734

.886

7.1

7.7

9608

5699

840

6523

9216

107

1761

736

828

7223

94Li

quor

Dig

esta

te7.

5436

600

15.7

61.0

0.0

61.0

3.9

105.

220

8651

.635

8.5

3443

132

454

5264

5709

338

8374

547

232

2732

116

683

Trea

t1Al

der

4A6.

4020

10.

11.

10.

01.

113

.22.

02.

31.

737

6416

2423

6611

414

232

1410

238

242

117

8Al

der

8A6.

1214

70.

11.

60.

01.

613

.82.

70.

72.

131

9216

7621

8210

813

565

1278

836

449

421

7Al

der

17A

*5.

7111

00.

11.

40.

01.

413

.72.

40.

32.

130

6013

1116

5711

413

116

1131

943

755

318

7Tr

eat2

Pure

1B5.

9120

10.

11.

60.

01.

614

.32.

80.

04.

231

0413

4517

5510

512

581

1201

543

657

517

3Pl

ante

d1B

7.04

1336

0.3

3.4

0.1

3.3

12.8

5.6

187.

43.

439

7061

1423

0022

914

808

1546

949

387

436

7Pu

re11

B5.

9425

70.

11.

40.

01.

414

.22.

345

.34.

336

1613

0220

7013

114

357

1456

937

850

321

0Pl

ante

d11

B6.

3451

70.

11.

70.

01.

713

.22.

919

2.5

5.0

3844

2139

2364

144

1531

815

133

459

622

251

Pure

21B

*5.

6613

60.

11.

80.

01.

812

.73.

20.

03.

529

6316

7616

8212

214

102

1303

445

062

925

7Pl

ante

d21

B*

6.70

719

0.2

2.4

0.0

2.4

11.8

4.1

109.

32.

731

4938

4216

8015

113

628

1266

143

467

633

6Tr

eat3

Pure

5C7.

9311

153

1.6

20.1

0.9

19.2

12.0

33.1

2373

.711

.279

6758

406

4025

1958

1719

619

930

398

2829

2206

Plan

ted

5C7.

1312

350.

22.

30.

02.

312

.63.

934

4.6

2.6

4234

3713

2309

213

1612

714

812

456

580

323

Pure

14C

7.90

1204

51.

617

.80.

817

.010

.929

.326

08.7

11.8

8751

5279

541

3621

4817

187

2152

338

227

4021

82Pl

ante

d14

C6.

8910

130.

22.

20.

02.

211

.83.

713

2.4

2.2

3404

3513

1748

211

1381

812

535

460

672

301

Pure

20C

*7.

9298

851.

618

.40.

917

.611

.230

.325

46.9

13.8

9117

5630

343

4422

1217

805

1950

841

327

8921

21Pl

ante

d20

C*

6.97

1428

0.2

3.1

0.0

3.1

12.7

5.3

92.0

4.8

3179

6458

1552

244

1302

111

046

339

760

396

Trea

t4Pu

re3D

7.84

1063

51.

720

.00.

819

.211

.333

.156

09.4

17.1

8485

5510

642

1224

2514

441

2022

141

927

7721

53Pl

ante

d3D

7.71

2071

0.2

2.9

0.1

2.8

11.7

4.8

478.

83.

739

6251

0624

3426

214

393

1589

139

060

337

0Pu

re9D

7.92

1291

51.

618

.70.

717

.910

.930

.954

46.1

12.3

8037

5362

340

0823

3614

691

2099

739

828

8021

82Pl

ante

d9D

7.78

3783

0.3

3.8

0.1

3.6

11.6

6.2

711.

92.

639

4570

6724

0536

013

781

1512

642

871

458

8Pu

re15

D*

7.75

1311

01.

719

.30.

818

.511

.231

.945

91.9

10.4

8682

5813

942

9125

1515

439

2202

038

727

8822

70Pl

ante

d15

D*

7.41

1988

0.2

2.9

0.1

2.8

11.8

4.8

224.

42.

631

0942

4117

2324

012

769

1267

542

865

133

5

Blo

ck

* =

sam

ple

s in

row

s m

arke

d w

ith a

n a

ster

isk

‘*’ are

bas

ed o

n s

ingle

sam

ple

s, o

nly

Use

of an

aero

bic

dig

esta

tes

in

fore

stry

– p

relim

inar

y re

sults

Tab

le 1

. (c

ontinued

)

Trea

tmen

tpH

(in

wat

er)

Con

dTo

tal N

Tota

l CTI

CTO

CC

/N ra

tioO

.M.

N-N

H4

N-N

O3

KC

aM

gN

aAl

FeM

nP

S-

μs/c

m%

%%

%-

%m

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

Trea

t5Pu

re7E

6.13

346

0.1

1.7

0.0

1.7

14.0

2.9

2.2

1.8

2597

1998

1762

112

1164

213

369

462

648

271

Plan

ted

7E6.

5478

70.

11.

80.

01.

813

.13.

216

9.7

2.7

2634

2387

1819

130

1128

813

057

458

641

246

Pure

12E

6.37

237

0.1

1.5

0.0

1.5

14.3

2.7

5.1

2.7

3224

1639

2055

112

1281

314

222

468

621

199

Plan

ted

12E

6.69

1304

0.2

2.4

0.0

2.4

13.6

4.1

162.

12.

630

5362

4618

9719

912

220

1083

436

277

430

5Pu

re19

E*

6.21

346

0.1

1.8

0.0

1.8

14.3

3.0

13.4

2.0

3270

1706

1925

130

1359

215

550

472

678

228

Plan

ted

19E

*6.

1727

50.

11.

70.

01.

715

.12.

90.

52.

823

7913

3912

8411

410

993

8888

299

635

188

Trea

t6Pu

re6F

6.23

153

0.1

1.6

0.0

1.6

13.2

2.8

0.4

3.0

3924

2027

2055

141

1583

214

961

582

646

217

Plan

ted

6F6.

0229

10.

11.

60.

01.

613

.72.

813

8.4

2.8

3747

1414

1861

159

1461

413

588

497

676

199

Pure

13F

5.72

910.

11.

40.

01.

413

.92.

40.

31.

928

3513

1515

2711

712

842

1156

048

164

518

7Pl

ante

d13

F6.

8265

40.

11.

70.

01.

712

.22.

930

8.8

2.3

2955

2205

1519

176

1282

611

354

460

675

227

Pure

18F*

5.48

850.

11.

40.

01.

413

.72.

42.

12.

330

8112

1314

6813

813

241

1091

145

963

818

7Pl

ante

d18

F*6.

7410

020.

11.

70.

01.

711

.82.

924

6.4

1.7

3119

2117

1592

206

1293

410

876

393

683

228

Trea

t7Pu

re2G

5.90

135

0.1

1.7

0.0

1.7

14.2

2.9

14.4

4.3

3852

1745

2309

124

1581

215

207

464

491

223

Plan

ted

2G6.

0029

80.

11.

70.

01.

713

.63.

034

.14.

736

4218

6423

4613

615

440

1520

546

550

023

4Pu

re10

G5.

9614

80.

11.

70.

01.

713

.62.

90.

73.

230

4017

4420

7110

013

424

1380

943

153

423

0Pl

ante

d10

G6.

8187

90.

22.

00.

02.

012

.53.

531

7.8

2.0

3440

2336

2133

168

1421

613

647

410

600

285

Pure

16G

*5.

6298

0.1

1.6

0.0

1.6

12.8

2.8

1.2

3.2

3310

1591

1753

130

1508

412

784

497

600

238

Plan

ted

16G

*6.

0029

60.

11.

90.

01.

912

.83.

285

.42.

830

4816

0716

5113

213

816

1191

044

260

324

2

Blo

ck

Use

of an

aero

bic

dig

esta

tes

in

fore

stry

– p

relim

inar

y re

sults

Tab

le 2

. F

urt

her

bas

elin

e ch

emic

al c

om

posi

tion o

f unam

ended

soil,

com

post

, AD

pro

duct

s an

d t

reat

men

t plo

ts (

mea

n o

f duplic

ate

sam

ple

s unle

ss indic

ated

).

Trea

tmen

tBl

ock

BaC

dC

oC

rC

uN

iPb

SrZn

AsB

Hg

ZrM

oSb

SeSn

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgTo

p So

il19

50

520

107

3413

366

60

42

11

1An

aero

bic

Dig

esta

te C

ake

410

212

636

917

6025

10

170

46

41

4PA

S G

reen

Com

post

163

07

2882

2011

811

423

48

140

252

31

9Li

quor

Dig

esta

te77

19

368

101

4852

157

616

054

06

259

49

Trea

t1Al

der

4A15

20

520

119

2118

434

60

31

11

1Al

der

8A17

00

520

99

1918

415

60

32

11

1Al

der

17A*

100

04

1910

723

1538

36

04

21

12

Trea

t2Pu

re1B

960

519

168

2113

387

70

31

11

1Pl

ante

d1B

110

05

2216

1135

2461

58

07

21

12

Pure

11B

246

05

2312

921

1446

56

05

21

11

Plan

ted

11B

165

06

2212

1028

1652

57

05

21

11

Pure

21B*

118

05

1711

831

1533

47

03

21

11

Plan

ted

21B*

119

05

1812

835

1941

47

05

21

12

Trea

t3Pu

re5C

162

18

3168

2197

114

224

814

015

24

16

Plan

ted

5C14

40

522

1110

2321

495

80

72

11

1Pu

re14

C18

01

830

7020

9710

422

79

140

242

41

7Pl

ante

d14

C10

60

517

118

2718

464

70

52

11

1Pu

re20

C*

152

18

3468

2198

104

229

815

025

24

17

Plan

ted

20C

*10

10

416

127

2922

424

60

72

11

2Tr

eat4

Pure

3D14

51

731

6319

9910

120

87

130

202

41

5Pl

ante

d3D

154

06

2314

1126

2357

68

02

11

11

Pure

9D15

71

831

6820

9210

122

28

130

202

31

6Pl

ante

d9D

162

05

2316

1028

2560

58

02

21

12

Pure

15D

*14

41

828

7221

9213

121

49

150

222

31

6Pl

ante

d15

D*

980

417

128

3319

434

70

12

11

1

* =

sam

ple

s in

row

s m

arke

d w

ith a

n a

ster

isk

‘*’ are

bas

ed o

n s

ingle

sam

ple

s, o

nly

Use

of an

aero

bic

dig

esta

tes

in

fore

stry

– p

relim

inar

y re

sults

Tab

le 2

(co

ntinued

)

Trea

tmen

tBl

ock

BaC

dC

oC

rC

uN

iPb

SrZn

AsB

Hg

ZrM

oSb

SeSn

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgm

g/kg

mg/

kgTr

eat5

Pure

7E17

90

519

128

2514

385

50

12

11

1Pl

ante

d7E

138

05

1911

832

1444

55

01

21

11

Pure

12E

155

05

2111

931

1538

55

03

21

11

Plan

ted

12E

115

04

1711

735

1936

45

05

11

12

Pure

19E*

152

05

2011

834

1442

66

04

21

11

Plan

ted

19E*

770

315

116

3012

233

50

51

11

3Tr

eat6

Pure

6F12

50

521

109

3018

384

80

62

11

2Pl

ante

d6F

127

05

2214

921

1636

96

06

21

11

Pure

13F

960

416

77

3114

303

60

42

11

1Pl

ante

d13

F97

04

169

730

1634

36

05

11

11

Pure

18F*

100

04

157

626

1429

36

04

11

11

Plan

ted

18F*

102

04

168

726

1531

36

07

11

12

Trea

t7Pu

re2G

159

06

229

1020

1748

58

04

21

11

Plan

ted

2G15

60

622

910

1819

485

80

21

11

1Pu

re10

G15

30

522

99

2316

385

60

22

11

1Pl

ante

d10

G14

20

522

119

2419

425

70

32

11

1Pu

re16

G*

116

05

198

832

1835

47

05

21

11

Plan

ted

16G

*10

50

417

88

2919

324

60

32

11

1


ANNEX 5. TREE HEIGHT AT PLANTING.MISC 437 P11 - Use of Anaerobic Digestate (AD) to Establish Trees

Height at planting (mm) Date: Assessors:

Assessment plot size 3 trees x 3 trees Weed C over 0% in all plots N

95 113 97 93 95 91 89 79 113

73 103 77 121 115 97 93 115 91

111 83 109 55 103 99 119 87 85

B LK I

83 101 125 99 107 83 117 115 97

117 87 123 93 119 111 115 111 81

75 123 109 119 83 95 99 105 77

81 83 109 89 101 97 95 89 105

123 77 65 103 113 103 85 143 83

83 81 69 83 77 101 99 107 91

B LK II

95 133 95 125 81 91 85 109 117

109 105 117 123 87 91 121 123 125

87 127 97 67 87 95 73 115 91

77 127 101 89 83 111 93 105 55

95 91 103 103 77 79 81 103 93

73 115 91 97 79 113 81 67 71

87 65 99 119 133 119 101 81 83

63 89 83 123 109 91 95 85 75 B LK III

87 89 117 107 111 95 57 79 111

71 93 79 103 89 85 107 103 97

101 73 103 87 71 113 131 91 63

125 81 85 95 61 73 81 79 115

1b

19e

18f

13f

12e

7e

6f

21b

16g

15d

10g

20c

17a

14c

11b

SM17/02/2011

9d

4a

3d

8a

5c

2g

Appendix 8 Tree Height at Planting


Appendix 9 Photographic Records

Site prior to weed control September 2010

Weed Control 1st November 2010


Site Following Cultivation 23rd November 2010

Heavy snow in early December 2010


Dry Digestate Wet Digestate

PAS100 Compost Liquor

Plot Layout

N

Plot layout 5 trees x 5 trees

Samples taken from the pits marked as yellow

Two pits were sampled in each plot in Blocks I and II


Trial Area During Construction – December 2010


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