Town of Fairfield

Health Department Date: 9/26/19 From: Sands Cleary, Health Director Re: Mill Hill School 9/9/19 Sampling Results – Walkway to Lower Playground and Field

Two areas of PAH impacted soil above cleanup criteria was found during the initial sampling conducted. This was largely expected and is likely due to the asphalt millings that were used as a base layer in the construction of the sidewalk. In this round 8 additional soil samples were collected for PAH analysis. All 8 samples were below the cleanup criteria. The CT Department of Public Health advised that given the levels found and typical use, exposure to these areas would not cause any health effects. The Town will work with our consultant Tighe & Bond, CT DPH and CT DEEP on a remedial action plan to excavate the impacted surficial soils along the ramp and replace it with clean soil. When reviewing results page, the first column shows the different constituents tested for. The next two columns have the applicable standards which are defined in the key at the bottom of that page. The right most column shows the results of each individual sample.

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&AÒMill Hill S1

Mill Hill S2Mill Hill S3

Mill HillS201

Mill HillS202

Mill HillS205

Mill HillS206

Mill HillS203Mill Hill

S208

Mill HillS207

Mill HillS204

Mill Hil

l Rd

Mill Hi ll Dr

Mill Hill Ter

Mill Hill Rd

Mill Hill Ter

Mill Hill Ln

EXCEEDANCESUMMARY

Mill Hill Elementary School635 Mill Hill Terrace

Fairfield, Connecticut

September 2019

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1:1,200

NOT E S

LOC U S M A P

1. Based on 2016 StatewideOrthophotography, Courtesty of CTECO.

0 50 100Feet

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LE G E ND&AÒ Approximate Sample Location

Approximate Site ParcelApproximate Parcel Boundary

UPDATE LOCATOR MAP

Tighe&BondEngineers | Environmental Specialists

Parameter Concentration Exceedance2-Methylnaphthalene 2.4 GA PMCBenz(a)anthracene 14 RES DEC/GA PMC

Benzo(a)pyrene 13 RES DEC/GA PMCBenzo(b)fluoranthene 11 RES DEC/GA PMCBenzo(ghi)perylene 8.7 RES DEC/GA PMC

Benzo(k)fluoranthene 10 RES DEC/GA PMCChrysene 14 RES DEC/GA PMC

Dibenz(a,h)anthracene 2.3 RES DEC/GA PMCFluoranthene 27 GA PMC

Indeno(1,2,3-cd)pyrene 9.4 RES DEC/GA PMCPhenanthrene 26 GA PMC

Pyrene 24 GA PMC

MILL HILL S1

Parameter Concentration ExceedanceBenz(a)anthracene 7.7 RES DEC/GA PMC

Benzo(a)pyrene 7.7 RES DEC/GA PMCBenzo(b)fluoranthene 6.1 RES DEC/GA PMCBenzo(ghi)perylene 4.6 GA PMC

Benzo(k)fluoranthene 5.7 GA PMCChrysene 8.2 GA PMC

Dibenz(a,h)anthracene 1.1 RES DEC/GA PMCFluoranthene 14 GA PMC

Indeno(1,2,3-cd)pyrene 4.9 RES DEC/GA PMCPhenanthrene 12 GA PMC

Pyrene 13 GA PMC

MILL HILL S2

MILL HILL ELEMENTARY SCHOOLSummary of Soil Sample Analytical DataFairfield, ConnecticutLast Updated: 09/16/2019

Sample ID CT RSR Criteria US EPA MILL HILL S1 MILL HILL S2 MILL HILL S3 MILLHILL S201 MILLHILL S202 MILLHILL S203 MILLHILL S204 MILLHILL S205 MILLHILL S206 MILLHILL S207 MILLHILL S208Sample Depth 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ft 0-0.5 ftSample Date RES DEC GA PMC 8/20/2019 8/20/2019 8/20/2019 9/9/2019 9/9/2019 9/9/2019 9/9/2019 9/9/2019 9/9/2019 9/9/2019 9/9/2019Lab Sample ID CD88972 CD88973 CD88974 CE00376 CE00377 CE00378 CE00379 CE00380 CE00381 CE00382 CE00383Asbestos PLM 198.1²% Amosite NA NA NA 0.0% 0.0% 0.0% - - - - - - - -% Chrysotile NA NA NA 0.0% 0.0% 0.0% - - - - - - - -% Other NA NA NA 0.0% 0.0% 0.0% - - - - - - - -% Total Asbestos NA NA 1% 0.0% 0.0% 0.0% - - - - - - - -

Total Metals 6010DArsenic 10 NA NA 3.22 7.6 8.45 - - - - - - - -Lead 400 NA NA 14.8 110 34 - - - - - - - -

CTETPH 8015D (mg/Kg) 500 500 NA < 95 180 < 53 - - - - - - - -

PCBs SW8082A (mg/Kg)Total PCBs 1 NA NA <0.44 <0.37 <0.35 - - - - - - - -

PAHs SW8270D (mg/Kg)2-Methylnaphthalene 270 0.56 NA 2.4 <0.56 <0.24 <0.29 <0.27 <0.28 <0.26 <0.26 <0.28 <0.29 <0.28Acenaphthene 1,000 8 NA <1.5 <1.3 <0.24 <0.29 <0.27 <0.28 <0.26 <0.26 <0.28 <0.29 <0.28Acenaphthylene 1,000 8 NA 6.3 2.5 <0.24 <0.29 <0.27 <0.28 0.3 <0.26 <0.28 <0.29 <0.28Anthracene 1,000 40 NA 6.2 2.8 <0.24 <0.29 <0.27 <0.28 <0.26 <0.26 <0.28 <0.29 <0.28Benz(a)anthracene 1 1 NA 14 7.7 <0.24 <0.29 0.44 0.58 0.66 0.28 0.38 0.45 0.39Benzo(a)pyrene 1 1 NA 13 7.7 <0.24 0.35 0.52 0.73 0.81 0.37 0.49 0.52 0.52Benzo(b)fluoranthene 1 1 NA 11 6.1 <0.24 0.31 0.47 0.63 0.72 0.35 0.45 0.46 0.46Benzo(ghi)perylene 8.4 1 NA 8.7 4.6 <0.24 <0.29 0.41 0.6 0.57 0.31 0.4 0.39 0.44Benzo(k)fluoranthene 8.4 1 NA 10 5.7 <0.24 0.29 0.43 0.58 0.69 0.31 0.41 0.43 0.41Chrysene 84 1 NA 14 8.2 <0.24 0.32 0.52 0.68 0.76 0.34 0.48 0.55 0.44Dibenz(a,h)anthracene 1 1 NA 2.3 1.1 <0.24 <0.29 <0.27 <0.28 <0.26 <0.26 <0.28 <0.29 <0.28Fluoranthene 1,000 5.6 NA 27 14 0.37 0.56 0.88 1.1 1.4 0.52 0.75 0.88 0.71Fluorene 1,000 5.6 NA 5.4 1.7 <0.24 <0.29 <0.27 <0.28 <0.26 <0.26 <0.28 <0.29 <0.28Indeno(1,2,3-cd)pyrene 1 1 NA 9.4 4.9 <0.24 0.29 0.45 0.63 0.62 0.35 0.45 0.41 0.47Naphthalene 1,000 5.6 NA 3.6 <1.3 <0.24 <0.29 <0.27 <0.28 <0.26 <0.26 <0.28 <0.29 <0.28Phenanthrene 1,000 4 NA 26 12 <0.24 0.31 0.41 0.49 0.61 <0.26 0.3 0.5 0.31Pyrene 1,000 4 NA 24 13 0.34 0.55 0.88 1.1 1.3 0.54 0.79 0.97 0.71

CTDEEP RSRs- Connecticut Department of Energy and Environmental Protection Remediation Standard Regulations (June 27, 2013)US EPA - United State Environmental Protection AgencyRES DEC-Residential Direct Exposure CriteriaGA PMC- Pollutant Mobility Criteria in a GA groundwater areaNE- Not establishedNA- Not ApplicableCT ETPH- Connecticut Department of Public Health Extractable Total Petroleum HydrocarbonsPAHs- Polycyclic Aromatic HydrocarbonsPCBs- Polychlorinated Biphenyls< xx indicates compound was not detected.  Detection limit is provided.Boxed values indicate exceedances of RES DECBold values indicate exceedances of I/C DEC²- Asbestos analysis of Bulk Materials via 40 CFR Part 763, Sub. E, App. E/NYS-DOH 198.1 (PLM) by Eastern Analytical Services, Inc.

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