En_EnvStand17_Industrial and Municipal Wastewater Discharges

KSA Presidency of Meteorology and Environment PME Reference

Kingdom of Saudi Arabia Page 1 of 17

Article I - Preliminary

1) Definitions

aesthetic refers to those characteristics of water which exhibit themselves physically, including but not limited to, the odor, taste and color. blending shall refer to the merging of wastewater flows or samples from one or more sources. Central Treatment Works means a facility that receives wastewater or water runoffs from domestic or industrial sources, and by combinations of different processes treats Domestic or Industrial wastewater (Hazardous or non hazardous) to a less harmful effluent. These facilities are also known as Waste Water Treatment Plants (WWTP) or as Sewage Treatment Plants (STP). composite sample shall refer to a sample which is taken continuously over a time period, or a sample consisting of several samples taken either continuously or discontinuously over a given period and blended. Concerned Agency the government agency in-charge of environment-related projects. contravention refers to an actual breach in a regulatory requirement meaning the failure to comply with the terms set out in this document. degraded water body shall refer to any water body that does not comply with the conditions set out in the Ambient Water Quality Standard. discharges include, but is not limited to, any spilling, leaking, pumping, pouring, emitting, emptying, or dumping of effluents. Competent Agency where referenced, refers to the Presidency of Meteorology and Environment (PME) emergency situation refers to any abnormal situation that may cause any environmental risks including but limited to discharge of untreated wastewater, deficiency of the central treatment works due to organic overloaded and overflow or due to mechanical failure. facility shall refer to

industrial wastewater Industrial waste water refers to any liquid wastes discharged from an industrial facility or produced through any industrial activity. KSA shall refer to the Kingdom of Saudi Arabia. mixing zone shall refer to a defined area of water directly adjacent to an area for discharging wastewater where the receiving water quality standards may be exceeded. municipal wastewater Domestic wastewater refers to sanitary waste normally discharged from residential properties largely consisting of human and food waste and excluding any process waters or trade effluents. Commercial facilities may contribute to municipal wastewater. operator The owner or manager of a project, business, industrial enterprise or wastewater treatment works. parameter shall refer to a chemical, physical or biological measurement factor as listed. point of reference refers to the point in a wastewater process where samples must be taken to monitor for compliance with the requirements of this standard. PME shall refer to the Presidency of Meteorology and Environment. stormwater shall refer to precipitation that runs off land or structures on land. wastewater shall refer to any contaminated water resulting from industrial or agricultural operations or any other activities which are of equivalent environmental impact, including sanitary wastewater. water body shall refer to bodies of water as defined with Appendix A.

Aquifer: An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials (gravel, sand, silt, or clay) from which groundwater can be usefully extracted using a water well. The surface of saturated material in an aquifer is known as the water table.

Kingdom of Saudi Arabia National Environmental Standard

Industrial and Municipal Wastewater Discharges



Saturated Aquifer means the pressure head of the water is greater than atmospheric pressure (it has a gauge pressure > 0). The definition of the water table is surface where the pressure head is equal to atmospheric pressure (where gauge pressure =0).

Unsaturated Aquifer Unsaturated conditions in an aquifer occur above the water table where the pressure head is negative (absolute pressure can never be negative, but gauge pressure can) and the water which incompletely fills the pores of the aquifer material is under suction.

Unconfined Aquifers In unconfined aquifers, the ground water only partially fills the aquifer and the upper surface of the ground water (the water table) is free to rise and decline. The ground water is at atmospheric pressure.

Confined Aquifers

Confined aquifers may also be referred to as artesian aquifers.

A confined aquifer is sandwiched between confining beds (layers of impermeable materials such as clay which impede the movement of water into and out of the aquifer). Because of the confining beds, ground water in these aquifers is under high pressure.

2) Citation

a) This document will be cited as the Wastewater Discharge Standards for KSA. This standard revises the current General Standards for the Environment (specifically document number 1409-01) issued by the Presidency of Meteorology and Environment (PME).

3) Purpose

a) Wastewater discharge standards are developed to control the quality of direct discharges from facilities and persons operating in KSA. These standards will contribute towards meeting KSAs ambient water quality objectives. These standards utilize use-related criteria and specify limits on individual discharges designed to protect those uses. b) PME is charged with protecting the natural environment and under its mandate, must issue controls over effluent discharges. While these standards aim to control environmental pollution and protect public health welfare, appropriate attention is

attributed to the minimization of impacts upon economic development.

c) The standards shall, where attainable:

i) Ensure the maintenance or improvement of

water quality in KSA for the protection and propagation of aquatic life, wildlife and recreation in and on the water; and;

ii) take into consideration aesthetic values, use

for public water supplies, agricultural, industrial and other purposes including navigation.

4) Timescales for implementation . a) The effective date of this standard is 01/05/1433H

corresponds to 24/03/2012G.

5) Scope

a) Discharges shall include any liquid effluents or process water which is not classified as clean unpolluted surface runoff including storm water. This may include but is not restricted to:

- waste chemicals, including oils; - liquid process wastes; - detergents; - condensate water; - cooling water; - biodegradable substances; - wash water; - ballast water; - liquid wastes or wash waters, domestic

sewage, wastewater discharged using sinks, basins or toilets;

- contaminated mine or quarry water; - all sanitary wastewaters; and - treated effluents from CTW (municipal and

industrial), - Desalination reject water.

b) These standards shall apply to any installation, site or premises that produce discharges as defined in (5-a) above. These standards control discharges into Central Treatment Works (CTW), unplanned emergency events (overflows) and discharges to coastal waters, surface water, land and wadis. c) It is the responsibility of the CTW to ensure that the final discharge from their facility does not exceed any of the prescribed concentrations and values in Appendix B when processing domestic, commercial and / or industrial wastewater.



d) Sanitary Wastewater discharges from off-shore facilities shall be governed by the relevant regional marine discharge requirements (delete)

6) Exemptions a) The following exemptions will apply for industrial wastewater discharges:

i) Any liquid discharge from national state

defense activities providing there is agreement with the Competent Agency.

ii) Any liquid discharge following an emergency

fire fighting event (not to include fire fighting training exercises). However best practices must be used to contain pollutants under these circumstances.

7) Powers of authority a) The General Environmental Regulations give a mandate to PME to enforce standards in the field of wastewater discharges. These standards are intended to provide the basis for such regulation. b) These standards permit the issuing of further technical memoranda which are subject to enforcement by PME. These memoranda may be issued at a date following the implementation date. c) The Competent Agency or Concerned Agency for the purposes of these standards may appoint persons to act on their behalf as technical assessors and monitors in relation to the powers and duties conferred by these standards and / or subsequent amendments. d) The Competent Agency, Concerned Agency or appointed person for the purpose of monitoring and enforcing these standards may:

i) enter any premises for the purpose of carrying out any such investigations.

ii) carry out such inspections and tests on such

samples of water or land or articles, as that person considers appropriate for the purpose of enabling him to carry out any such investigations; or

iii) at any reasonable time require any relevant

party to supply him with copies of, or extracts from, the contents of any records kept for the purpose of complying with the regulations.

e) In order to protect the quality of the final effluent, the operator of a central treatment works is empowered to prescribe revised or additional discharge limits to

facilities discharging into their collection system. It is the responsibility of the operator of the CTW to enforce any revised conditions.

8) Enforcement procedures

a) Failure to comply with the requirements of these standards may lead to prosecution by the relevant Agency as laid out in the General Environmental Regulations and those convicted of such failure may be subject to fines or periods of imprisonment as laid out in the General Environmental Regulations. b) It is anticipated that the requirements of this standard will be enforced nationally with inspections taking place to verify their implementation at a regional and local level.

9) Penalty fines

a) Maximum fines that may be imposed for exceeding the applicable standard, breach of permit and failure to comply with an abatement notice are set out in the General Environmental Regulations.

10) Appeals a) A right of appeal exists for any organization or individual who is required to take action as a consequence of the implementation of the revised standard. b) The right of appeal against conviction or sentence is available through the appropriate judicial system as set out in the General Environmental Regulations. c) All appeals should be fully supported with a documented case containing as a minimum, the information required under the appeals process of the General Environmental Regulations.

11) Periodic review

a) There may be some requirement at a future date to adjust the standards included to recognize specific local conditions and or an improved understanding of the effects of non point-source wastewater discharges . b) As a minimum, the Competent Agency will undertake a periodic review of this standard every 5 years. c) Where new information suggests that adjustments are required to this standard, all changes will be subject to the appropriate consultation and will be notified to facilities by the Competent Competent



Agency. Appropriate implementation time will be allowed.

Article II General Provisions

1) Units of measurement and reference points for discharges

a) Units of concentration for the stipulated quality parameters of wastewater will be included in the summary Tables containing the numerical standards. These may vary for different constituents and are displayed in Appendix B.

b) Where effluent is discharged to a CTW, the point of reference for the industrial sites outlet is immediately upstream of the connection to the main sewerage system leading to the CTW. c) The point of reference for the sites Wastewater Treatment Plant is prior to it being mixed with any streams that would serve to dilute the treatment plant discharge. d) The point of discharge for all wastewater streams is a sample point prior to mixing with any other waste stream.

2) Pollution transfer a) The requirements of this standard must not be met by procedures whereby environmental pollution is transferred to other environmental media such as air or soil. b) Requirements specified in the form of concentration levels must not be achieved via dilution. c) Blending shall be permissible for the purpose of joint treatment. This is provided that the blending enhances the treatment efficiency or provides for a more economical treatment system and that effluent from the combined system meets all discharge standards.

3) Permits

a) In circumstances where a facility can provide substantive evidence that the prescribed emission limits are not practicable, a permit may be issued that allows parameters in Appendix B to be temporarily exceeded. b) The permit application form in Appendix E must be completed in full and submitted to the Competent agency either directly or through the Concerned

Agency. within 90 days of the date of implementation of this standard. c) The Concerned Agency may seek to externally verify any evidence provided within the application form. d) The Concerned Agency in consultation with the Competent Agency will assess each application and use a risk based approach to determine their response. This risk based approach will consider the impact the discharge will have on the environment (based on the characteristics of the discharge and the sensitivity of the receiving environment). e) If rejected by the Concerned Agency, the facility must meet the requirements of this standard or risk penalties as detailed in Article I. f) Where acceptable, a permit will be issued that may impose operating conditions, revised emission limits and/or a timetable for bringing the discharge into compliance.

4) Wastewater reuse and conservation

a) Where available, the preferable form of wastewater disposal is to a CTW which supports wastewater reuse. b) Wastewater destined for regulated or unregulated reuse must meet the criteria specified by the relevant Designated Agency to ensure that it is wholesome and fit for the intended purpose. c) In all circumstances, facilities and operators must consider the full range of options available for wastewater recycling within processes and activities at the site. d) In all circumstances facilities and operators must apply all means and technologies that support water conservation. This will include the installation of water efficient devices, metering and process auditing. e) All discharge streams from a facility must be metered and the records of the discharge quantities maintained with the compliance records (as required in Article III Section 3, a iv)

Article III Discharges to Central Treatment Works

1) Discharge limits

a) The quality standards set out in Appendix B for discharges to the CTW or shared sewerage system shall not be exceeded without specific authorization from the operator of the CTW. This authorization must be documented in full and include as a minimum:



i) details of the parameters that shall be

allowed to exceed the requirements of this standard, including revised limit values and/or maximum allowable quantities to be discharged; and

ii) the allowable time duration (TD) of the

authorization. b) If necessary, the operator of an industrial site shall install and operate a pre-treatment system in accordance with Article III (2) at the facility to ensure that the wastewater meets the discharge standards set out in Appendix B. c) Where practicable, wastewater shall be reused in accordance with national standards applicable to this activity. The preferred option for waste water disposal is through treatment and reuse. d) Water shall be considered a non-renewable resource and all wastewater shall be reused if reuse can be accomplished economically (i.e. treated sufficiently for reuse for less than the cost of providing the same quality water from desalinated sea water transported to the site using current construction costs).

2) Pre- treatment requirements

a) Industrial wastewater entering collecting systems and CTWs shall be subject to such pre-treatment as is required in order to:

i) protect the health of staff working in collecting

systems and treatment plants; ii) ensure that collecting systems, wastewater

treatment plants, processes and associated equipment are not damaged;

iii) ensure that the operation of the wastewater

treatment plant and the treatment of sludge are not impeded;

iv) ensure that discharges from the treatment

plants do not adversely affect the environment, or prevent receiving water from complying with other legislation; and

v) ensure that sludge can be disposed of safely in

an environmentally acceptable manner.

b) The following substances are banned from discharge into public or private sewer systems unless agreed otherwise with the CTW operator:

i) Diesel or petrol fuels and other flammable or explosive liquids;

ii) any highly volatile substance or material with toxic vapors; and

iii) any other substance in quantities or of a

quality that is likely to endanger human health, compromise safety, or negatively impact CTW, or the environment. (TD)

3) Sampling and monitoring

a) Each industrial operator shall:

i) for all facilities, determine compliance with

discharge standards using sampling and analytical methods that are in accordance with the most recent edition of the Standard Methods for the Examination of Water and Wastewater published by the American Public Health Association (APHA) or any other methods approved by the Competent Agency;

ii) maintain an auto-sampling system or manual

system to allow collection of 24-hour composite samples - if required the Competent Agency.

iii) Sample on a monthly sampling frequency (as a

minimum) for all discharges of treated or untreated industrial wastewater at the point of discharge from the facility. The sampling frequency may be increased at any time at the request of the Competent Agency;

iv) hold sampling and monitoring data for a

minimum period of 5 years, which may be extended at any time by the Competent Agency;

v) maintain the facility, monitoring and sampling

equipment at all times in a safe and proper operating condition at the expense of the operator;

vi) receive the written approval of the Competent

Agency before changing the sampling point and/or monitoring facilities to be used in all required sampling;

vii) ensure that all monitoring and sampling data is

readily accessible to the Competent Agency on request at any time; and

viii) allow the Competent Agency to enter the

premises of the operator at all reasonable hours, for purposes of, inspection, sampling and records examination.



Article IV Discharges to the Environment

1) General provisions a) The operator of a facility shall ensure that discharges made directly to the environment or to an identifiable direct pathway to the environment such as a storm water drain, meets the discharge standards as set out in Appendix B.

b) Allowable discharge limits will meet the specific standard from Appendix B relating to the characteristics of the receiving environment. Classifications of receiving environments are set out in Appendix A. A receiving environment may be classified as Marine, High Value or Degraded. c) The discharges limits set out in Appendix B are established at levels which are achievable using Best Available Techniques (BAT) and:

i) do not harm public health;

ii) do not impair the visual or aesthetic

appearance of the water;

iii) do not result in adverse impact on the adjacent waters;

iv) maintain marine life (coastal waters);

v) protect fisheries (coastal waters);

vi) maintain the aesthetic/recreational value of the

waters;

vii) are suitable for use as industrial cooling water (coastal waters); and

viii) do not interfere with the use as a source for

desalination feed-water.

d) In addition, each facility will have the ability to divert the effluent stream of the CTW, to offline storage or tankers for treatment offsite during system failure. e) The area of influence from a discharge or Mixing Zone will be defined using the methodology in Appendix D. f) Where studies show that a facilitys discharge from a specific facility is determined to be toxic to fish eggs and fish larvae, the Competent Agency may impose specific controls on the affected facility regarding the composition and location of its discharge. (TD) g) Discharges to areas classified as C2 in Appendix A must undergo tertiary treatment prior to discharge.

2) Assigning usage zone categories

a) The discharge limits are determined by the use-related designation of the receiving environment and the intended utilization of that environment or resource.

b) The responsibility for determining the use and classification of the receiving environment falls on the operator making the discharge. Criteria for classification of usage zones are set out within Appendix A. c) The Competent Agency is empowered to make a final determination in circumstances that are not clear. Any disputes will be referred to the Grievance Board if a resolution cannot be found. d) If a person is unable to clearly identify their usage classification, they may request guidance from the Competent Agency pertaining to the classification of the water usage designation and applicable standards.

e) Following a request for usage designation and any necessary payment has been received the Competent Agency has an obligation to reply within a period of 30 days. f) Failure by any person/facility to correctly classify the usage zone designated for their discharge location will be classified as a breach of the General Regulations.

3) Provisions for degraded water bodies

a) Whenever monitoring of ambient conditions by the Competent Agency has defined a water body as degraded, it is empowered to revise discharge limits for all contributing facilities irrespective of whether they meet the conditions set out within Appendix B. b) Alterations made (as per Article IV (3a)) to the prescribed discharge limits will consider pollutant loading from all contributing facilities in conjunction with the assimilative capacity of the receiving environment.

4) Groundwater quality protection a) Discharge of any sanitary, industrial, or municipal wastewater directly to groundwater is prohibited. b) Where the underlying aquifer is considered to be of moderate, high or extreme vulnerability (as determined by the methodology in Appendix C) any discharge made to land will be considered a direct discharge to groundwater and will therefore be prohibited by Article IV (4a). (complete methodology should be referenced for APX C) For complete methodology, please refer to Aller et al., 1987. c) Where the underlying aquifer is considered to be of negligible or low vulnerability (as determined by the



methodology in Appendix C) the Competent Agency may on a case by case basis allow surface or subsurface disposal subject to authorization from the Competent Agency. d) The decision to provide authorization referred to in (c) will be based on an analysis of the risk posed by the individual discharge. This risk analysis shall be carried out by the operator of the discharge and audited by the Competent Agency. Conditions specified alongside the authorization shall include as minimum:

i) the required level of treatment prior to discharge; and

ii) a limit on the total volume of effluent to be

discharged. e) A mandatory source protection zone with a 50m radius exists surrounding a point of groundwater abstraction used for potable purposes. Within this source protection zone the following activities are prohibited:

i) direct discharges of wastewater to unlined ponds;

ii) construction or operation of septic tank

leach field; and/or iii) construction or operation of seepage pits. iv) any other additional or modified conditions deemed necessary by the competent agency to protect the valuable groundwater resources from pollution.

5) Sampling and monitoring

a) For any direct discharge to the environment, the operator must provide and operate a continuous monitoring system to allow for the inspection, sampling and flow measurement of each individual discharge from the facility. This system;

i) should be equipped with an audible notification system should the effluent violate the indicator limits values for parameters as specified in the permit.

ii) should provide for monthly sampling of all

parameters in Appendix B that are reasonably anticipated to be present in the discharge. These parameters will be the parameters by which the facilitys compliance will be determined. The Competent Agency must be notified in writing of the indicator parameters to be used for compliance determination within 90 days of the date of implementation of these standards and these parameters should

represent the key pollutants known to be in the effluent discharge.

iii) All sampling for demonstration of

compliance must be according to Standard Methods sampling and analytical procedures. Any analysis that does not conform to these requirements must be repeated such that it conforms to the required protocols. Chain of custody and records of QA/QC testing must be maintained by the laboratory performing the analysis in order to demonstrate the accuracy of the data.

iv) Facility laboratories may institute more

frequent sampling events utilizing short-cut analytical methods in order to provide for process control parameters. However, these results will not be acceptable for compliance reporting. (TD) (ADKD)

Article V Emergency Situations

1) Operational requirements

a) All facility operators shall document a plan to provide protection for the local environment against accidental discharges or spills of regulated materials or substances covered by this standard. This plan must be made available to the Competent Agency upon their request.

b) A facility operator must notify the Competent Agency immediately of any revisions to wastewater equipment plans and operating procedures. The review and approval of any such equipment revisions plans and/or operating procedures shall not relieve the operator from the responsibility of modifying the facility as necessary to provide the protection necessary to meet the requirements of these standards; and

c) All facilities discharging to a CTW shall have storage capacity to retain 24 hours of wastewater production, excluding unpolluted process or cooling water in a pond that is lined with an impervious liner (30 mil HDPE or better). Wastewater retained in such facilities shall be regularly discharged so that the ponds are normally kept empty to provide containment for emergencies and to minimize fugitive emissions. d) All facilities discharging directly to the environment shall have storage capacity to retain 36 hours of total wastewater production, excluding uncontaminated cooling or process water in a pond that is lined with an impervious liner (30 mil HDPE or better). Wastewater retained in such facilities shall be regularly discharged so that the ponds are kept empty under normal operating conditions to provide containment for emergencies and to minimize fugitive emissions.



2) Emergency response requirements

a) Each facility shall prepare an Emergency Spill Containment Plan (Article V 1a) to mitigate or minimize (TD) the environmental risks posed under emergency conditions. This plan must be documented, evidence of communicated to staff retained and such records made available to the Competent Agency when requested., through their Licensing Agency . b) Under emergency situations the effluent shall either be pre-treated on-site until compliant with the standards set in Appendix B, or transferred to and disposed of at an approved wastewater treatment facility. c) These arrangements must only be temporary and shall not continue for a period of longer than 21 days whilst repair and maintenance works are carried out. Any extension to this must be agreed with the Competent Agency. d) Upon the occurrence of an accidental discharge, the facility operator shall notify the Competent Agency immediately and, in every case, no later than 12 hours from the time the operator becomes aware of the accidental discharge. The notification shall include but not be limited to, location of discharge, date and time thereof, type of discharge, concentration and volume, and corrective actions. d) In an event where the accidental discharge:

i) Travels to the CTW and adversely affects the

normal functioning of the treatment works; or

ii) enters the environment in some other manner, including but not limited to leakage and overspill,

the facility operator shall be subject to investigation by the Competent Agencys enforcement policies and/or procedures and may be prosecuted under the General Environmental Regulations.

3) Storm water management a) The operator should eliminate or minimize the risks posed to human health and the environment by storm water run off from their facility. b) Facilities that cover an area greater than 0.1 hectares must install and maintain an oil/water interceptor on each individual storm water drain line.

c) Storm water may be discharged directly to the environment if it meets the discharge criteria in Appendix B.



Appendix A Classification of water bodies

a) The requirements of Article IV 2 state that all water bodies (receiving environments) must be classified according to the type of water and use. This appendix sets out the criteria for classifying usage zones.

Classification

Sub-division

Code Definition

Groundwater

-

A

Water located beneath the ground surface in soil pore spaces and in the fractures of geologic formations.

Fresh surface water

-

B

This includes all fresh waters on the ground and includes water within rivers, canals, streams, lakes, ponds, wetlands, marshes, wadis and man made reservoirs.

Coastal water

Marine

C1

Coastal waters are those that are under the jurisdiction of KSA (the territorial coastal waters being 12 international nautical miles (22.2 kilometers) of the shoreline. The sub-division marine is the default when the coastal water body does not meet the criteria for high-value (C2) or industrial (C3) as detailed below.

Coastal water

High value

C2

Areas of coastal water shall be classified as high value if they are designated as locally, nationally or internationally protected areas by any Concerned Agency (this includes but is not limited to the Competent Agency, ROPME, NCWCD and PERGSA).

Coastal water

Industrial

C3

Water bodies shall be classified as industrial if they are adjacent to terrestrial zones or surrounding fixed offshore platforms that are classified as industrial through local or national planning regulation. The extent of the aquatic environment classified as industrial will represent a seaward extension of the terrestrial boundary provided that it does not impinge upon high areas classified as C1 or C2. Furthermore, industrial ambient conditions will extend no more than a 500 meter radius from the edge of any mixing zone.



Appendix B Prescribed concentrations and values Table B1 Discharge limits for effluents prior to discharge into water bodies (and municipal collection systems)

Municipal collecting systems

Red Sea Gulf

Parameter Unit Marine Eco-

sensitive Industrial Marine Eco-

sensitive Industrial Surface water

Important note*

Physical chemistry

Coarse material Absent Absent Absent Absent Absent Absent Absent

Temperature C

(from ambient) 45 7 5 7 7 5 7 5 pH pH units 5-10 6-9.5 7.5-9 6-10 6-9.5 7.5-9 6-10 6.5-8.5 TDS mg/l 3000* Turbidity NTU 50 5 75 50 5 75 5 TSS mg/l 600 15 10 15 15 10 15 10 Indicators BOD5 mg/l 500 25 10 25 25 10 25 10 COD mg/l 1000 150 50 150 150 50 150 50 Total Oil & Grease1 mg/l 100 5 2 7 5 2 7 5 TKN (organic N) mg/l 120 5 5 10 5 5 10 5 TOC mg/l 1000 50 40 50 50 40 50 100 Phosphorus (total) mg/l 50 2 1 5 3 1 5 5 Phosphate (PO4)3- mg/l n/a 0.8 0.5 1 1 0.5 1 1 Ammonia (as NH3) mg/l 40 1 1 3 1 1 3 0.5 Chloride (as Cl) mg/l 1500 Total inorganic nitrogen (as N02 and N03) mg/l n/a 15 Sodium mg/l 1000 800 800 1500 800 800 1500 800 Sulfate mg/l 500 600 600 1000 600 600 1000 600 Sulfide mg/l 10 0.2 0.2 1.0 0.2 0.2 1.0 0.2 Heavy metals Aluminium mg/l 30 10 5 15 10 5 15 5 Arsenic mg/l 1 0.3 0.05 0.5 0.3 0.05 0.5 0.1 Barium mg/l 2 2 1 2 2 1 2 1 Cadmium mg/l 1.0 0.02 0.005 0.05 0.02 0.005 0.05 0.001 Chromium (total) mg/l 1 0.5 0.01 0.5 0.5 0.01 0.5 .01 Chromium (Hexavalent) mg/l 0.5 0.1 0.05 0.1 0.1 0.05 0.1 0.05 Cobalt mg/l 2 0.2 0.05 0.2 0.2 0.05 0.2 0.05 Copper mg/l 1 0.2 0.2 0.5 0.2 0.2 0.5 0.2 Iron mg/l 30 5 5 10 5 5 10 2 Lead mg/l 1 0.1 0.1 0.5 0.1 0.1 0.5 0.1 Manganese mg/l 2 0.5 0.2 1 0.5 0.2 1 0.2 Mercury mg/l 0.5 0.005 0.001 0.1 0.005 0.001 0.1 0.001 Nickel mg/l 1.5 0.5 0.2 1 0.5 0.2 1 0.2 Silver mg/l 1 0.3 0.3 0.5 0.3 0.3 0.5 0.3 Zinc mg/l 10 3 2 5 3 2 5 2 Organics and inorganics Benzene mg/l 1 0.05 0.05 0.1 0.05 0.05 0.1 0.05 Carbon Tetrachloride mg/l 1 0.02 0.02 0.04 0.02 0.02 0.04 0.02 Chlorine (residual) mg/l 1.0 0.2 0.1 0.3 0.2 0.1 0.2 0.3

1 No sheen should be visible within the mixing zone. * Consideration should be given to areas of natural high TDS



Chlorinated Hydrocarbons (total) mg/l 0.5 0.5 0.1 0.5 0.5 0.1 0.5 0.1 Chlorobenzene(s) total or individual concentrations Chloroform mg/l 1 Cyanide (free) mg/l 1 0.05 0.05 0.1 0.05 0.05 0.1 0.05 Fluoride mg/l 15 25 15 25 25 15 25 15 Furans2 mg/l 0.005 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Hexachlorobenzene mg/l 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Lindane mg/l 0.1 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Mirex mg/l 0.01 0.01 0.01 0.01 0.01 0.01 0.01 MTBE mg/l 0.01 0.01 0.01 0.01 0.01 0.01 0.01 PAH mg/l 0.002 0.01 0.01 0.05 0.01 0.01 0.05 0.01 PCBs mg/l 0.002 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Pentachlorophenol mg/l 5

Pesticides and insecticides (total) mg/l 5 0.05 0.05 0.05 0.05 0.05 0.05 0.05 - Aldrin mg/l 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 - Chlordane 0.06 0.01 0.01 0.01 0.01 0.01 0.01 0.01 - DDT (and metabolites) mg/l 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.01 - Dieldrin mg/l 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 - Endrin mg/l 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 - Heptachlor mg/l 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.01 - Toxaphene mg/l 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Phenols mg/l 150 0.1 0.1 1 0.1 0.1 1 0.1 Dioxins3 mg/l 0.005 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Toluene mg/l 2 TPH mg/l 15 5 5 10 5 5 10 5 Vinyl chloride mg/l 0.1 0.02 0.02 0.1 0.02 0.02 0.1 0.02 Xylenes mg/l 2 0.05 0.05 1 0.05 0.05 1 0.05 Microbiological Total Coliform count/100ml n/a 2500 2000 3000 3000 2000 5000 2000 * Any substance other than those mentioned in the above table may not be discharged at a concentration greater than 0.001mg/l unless agreed in advance with the Competent Agency or receiving treatment works.

2 Chlorodibenzo-furan cogeners 3 Chlorodibenzo-p-dioxin and tetrachlorodibenzo-p-dioxin congeners



Appendix C Determining the pollution vulnerability of an aquifer Methodology for determining the Aquifer Pollution Vulnerability (APV) index score:

1. Identification of the type of groundwater confinement, with consequent indexing parameter (in range 0.0 1.0). 2. Specification of the strata overlying the aquifer saturated zone in terms of the grade of consolidation and the type of lithology,

with consequent indexing parameter (in range 0.4 1.0). 3. Estimation of the depth to the groundwater table (of unconfined aquifer) or depth of first major strike (for confined aquifers),

with consequent indexing parameter (in range 0.6 1.0). (For more details, refer to the following published articles).

- Adams B and Foster S.S.D. (1992) Land surface zoning for groundwater protection. \j. of the Institute of Water and

Environmental Management, 6, 312-320. - Foster S.S.D. (1987). Fundamental Concept in Aquifer Vulnerability, Pollution Risk and Protection Strategy. TNO

Committee for Hydrological Research: Proceedings & Information, 38, 69-86 The APV index score is the product of the component indices in 1 to 3 above.

0.0 0.2 0.4 0.6 0.8

0.4 0.5 0.6 0.7 0.8 0.9 1.0

0.6 0.7 0.8 0.9 1.0

Negligible Low Moderate High Extreme

none

Ove

rflo

win

g

Sem

i-con

fined

Unc

onfin

ed

(cov

ered

)

Con

fined

Unc

onfin

ed

Lacustrine/estuarine

claysResidual

soils

Alluvial silts,loess,

glacial tillAeolian sands

Alluvial and fluvio-glacial

sands

Alluvial-fan gravels Unconsolidated

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.8 0.9 1.0

mudstones Consolidated(porous rock)

Consolidated(dense rock)

shales

siltstones

Volcanic tuffs

sandstones chalky Limestonecalcarenite

Igneous/metamorphicFormations and older volacnics

Recent volcanic

lavas

Calcretes +karst limestones

> 50

20

50 m

5

20 m

< 5

m

All

dept

hs

scharge A

scharge B



Appendix D Calculation of mixing zones D1 Red Sea and Gulf mixing zones Basic screening model for defining the maximum horizontal extent of a mixing zone:

SDave = Horizontal extent of mixing zone

Where: Dave = average water depth at outfall location4 5

S = refer to table D1.

Table D1 Red Sea S values

S

Example of habitat/area type

2 High-value area 5 Marine classified area 8 Industrially classified area

Table D2 Arabian Gulf S Values6

S

Example of habitat/area type

4 High-value area 10 Marine classified area 16 Industrially classified area

4 Average depth applies where diffusion technology is utilized for discharge and must be measured at 10m increments along the length of the diffusion apparatus. Otherwise the depth at the end of the outfall applies. 5 For the gulf a correction factor of +10 is applied to depth to take account of local bathymetry. 6 These values are adjusted to accommodate for the conditions in the Arabian Gulf (i.e. shallow waters)



Table D3 A look up table showing the radius of a mixing zone for given values of S and Dave for the Red Sea and Gulf of Arabia

Red Sea Depth (m) 2 5 8

Arabian Gulf Depth (m) 4 10 16

Mixing zone radius Mixing zone radius 5 or less 10 25 40 5 or less 20 50 80

6 12 30 48 6 24 55 96 7 14 35 56 7 28 60 100 8 16 40 64 8 32 65 9 18 45 72 9 36 70 10 20 50 80 10 40 75 11 22 55 88 11 44 80 12 24 60 96 12 48 85 13 26 65 100 13 52 90 14 28 70 14 56 95 15 30 75 15 60 100 16 32 80 16 64 17 34 85 17 68 18 36 90 18 72 19 38 95 19 76 20 40 100 20 80 21 42 21 84 22 44 22 88 23 46 23 92 24 48 24 96 25 50 25 100 26 52 26 27 54 27 28 56 28 29 58 29 30 60 30 31 62 31 32 64 32 33 66 33 34 68 34 35 70 35 36 72 36 37 74 37 38 76 38 39 78 39 40 80 40 41 82 41 42 84 42 43 86 43 44 88 44 45 90 45 46 92 46 47 94 47 48 96 48 49 98 49 50 100 50



Presidency of Meteorology and Environment (PME) APPENDIX E PERMIT APPLICATION (Page 1)

ADMINISTRATION FEE (SR)

CHECK NO. RECEIVED

CHECK AMOUNT (SR) DATE RECEIVED

SECTION A: GENERAL INFORMATION

FACILITY DETAILS A-1. FACILITY NAME AND SITE REFERENCE

A-5 STAMP (OFFICE USE ONLY)

A-2 DATE SUBMITTED

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NEW APPLICATION PERMIT RENEWAL PERMIT MODIFICATION ADMINISTRATIVE AMENDMENT

c) SECTION A-3: FACILITY DESCRIPTION A-17 GENERAL OPERATING ACTIVITIES [INCLUDING INDICATION OF SITE SIZE AND LAYOUT]

SECTION B: COMPLIANCE

d) SECTION B-1: VARIATION FROM CONTROLLED ACTIVITIES B-1 DOES YOUR FACILITY COMPLY WITH ALL CONDITIONS AND REQUIREMENTS OF THE GENERAL ENVIRONMENTAL REGULTION STANDARDS?

YES [SKIP TO C-18] NO [PLEASE ANSWER QUESTION B-2] B-2 FOR WHICH OF THE FOLLOWING DOES YOUR FACILITY REQUIRE A PERMIT VARIATION FOR?

Air (complete section C)

Water (complete section D)

Noise (complete section E)



Presidency of Meteorology and Environment (PME) APPENDIX E PERMIT APPLICATION (Page 2)

SECTION C: APPLICATION FOR A PERMIT OF VARIATION FOR EMISSIONS TO AIR

RELEVANT ACTIVITIES [MOST INFORMATION REQUIRES ATTACHMENT] C-1 FOR EACH NON-COMPLIANT EMISSION, PLEASE PROVIDE THE COORDINATES FOR LONGITUDE AND LATITUDE. C-2 PROVIDE AN ASSESSMENT OF THE LOCAL ENVIRONMENTAL CONDITIONS INCLUDING AIR QUALITY AND THE PRESENCE OF, AND THE SENSITIVITY OF THOSE RECEPTORS

C-3 DESCRIBE AND PROVIDE DATA REGARDING THE FLOW RATE OF THE EMISSION, ITS PHYSICAL AND CHEMICAL COMPOSITION AND ANY POLLUTI0N ABATEMENT TECHNOLOGIES APPLIED

C-4 PROVIDE A DETAILED ASSESSMENT OF CURRENT IMPACTS OF THE EMISSION(S) UPON THE ENVIRONMENT AND THE SENSITIVE RECEPTORS IDENTIFIED IN C-2.

C-5 PAYING DUE REGARD TO C-2, 3 AND 4, DOCUMENT A JUSTIFICATION FOR THE AWARD OF A TEMPORARY PERMIT FOR CONSIDERATION BY THE COMPETENT AGENCY.

SECTION D: APPLICATION FOR A PERMIT OF VARIATION FOR DISCHARGES TO WATER

RELEVANT ACTIVITIES [MOST INFORMATION REQUIRES ATTACHMENT] C-6 FOR EACH NON-COMPLIANT DISCHARGE, PLEASE PROVIDE THE COORDINATES FOR LONGITUDE AND LATITUDE.

C-7 PROVIDE AN ASSESSMENT OF THE LOCAL ENVIRONMENTAL CONDITIONS INCLUDING WATER QUALITY AND THE PRESENCE OF, AND THE SENSITIVITY OF THOSE RECEPTORS

C-8 DESCRIBE AND PROVIDE DATA REGARDING THE FLOW RATE OF THE DISCHARGE, ITS PHYSICAL AND CHEMICAL COMPOSITION AND ANY POLLUTI0N ABATEMENT TECHNOLOGIES APPLIED

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SECTION E: APPLICATION FOR A PERMIT OF VARIATION FOR THE EMISSION OF NOISE

RELEVANT ACTIVITIES [MOST INFORMATION REQUIRES ATTACHMENT] C-11 FOR EACH NON-COMPLIANT EMISSION, PLEASE PROVIDE THE COORDINATES FOR LONGITUDE AND LATITUDE. C-12 PROVIDE AN ASSESSMENT OF THE LOCAL ENVIRONMENTAL CONDITIONS INCLUDING THE PRESENCE OF, AND THE SENSITIVITY OF THOSE RECEPTORS

C-13 DESCRIBE AND PROVIDE DATA REGARDING MEASURED OR PREDICTED NOISE LEVELS AND ANY ABATEMENT TECHNOLOGIES APPLIED

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SECTION F: COMPLIANCE PLAN C-16 PLEASE PROVIDE AND ATTACH DETAILS OF A SCHEDULE OF TIME BOUND ACTIVITIES THAT WILL BRING THE FACILITY INTO COMPLIANCE WITH THE GENERAL ENVIRONMENTAL REGULATIONS.

C-17 EXPECTED DATE OF COMPLIANCE

I CERTIFY UNDER PENALTY OF LAW THAT I UNDERSTAND THE REQUIREMENTS FOR OBTAINING A TEMPORARY PERMIT; THAT THIS DOCUMENT AND ALL ATTACHMENTS WERE PREPARED UNDER MY DIRECTION OR SUPERVISION AND THAT TO THE BEST OF MY KNOWLEDGE, ALL INFORMATION INCLUDED IS TRUE, ACCURATE AND COMPLETE. C-18 SIGNATURE OF RESPONSIBLE OFFICIAL OF COMPANY

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TITLE: NAME:

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