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F~Le: co(2j UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

/ REGION I

J.F. KENNEDY FEDERAL IUILDINO,IOSTON, MAIIACHUIETTI 0220S-2211

May 5, 1988

Jan Drake Camp Dresser & McKee One Center Plaza · Boston, MA 02203

Re: Split Sampling Plan

Dear Jan,

As discussed, attached is the split sampling plan for the Western Sand & Gravel GW RI/FS Phase 1 sampling round. The first page is a summary of Olin's sampling plan. The second page identifies the plan CDM should follow.

! have also attached a copy of the table Olin put together outlining their sampling plan. Basically it should say the same thing as the first page of m~ attachment.

After you have had a chance to go over this, I would like to discuss it with you. Also, EPA would like to have CDM observe the other sampling done by Olin which won't

., be split. Our main concern is their basis, using indicator parameters, for deciding when additional samples will be taken at each well cluster•

..

. ·', ! Please call when you have a minute and we can discuss •

Sincerely,

~~ Lynne Fratus, RPM RI Superfund Section

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REGION 1 April 4, l98E

WESTERN SAND & GRAVEL GW RI/FS COM SPLIT SAMPLING PLAN

Olin's Phase I G\~ Sampling Plan

t Samples Well Cluster ( 1 sample/well) Parameters

c-4,c-s,c-6 18 Full HSL* I-2,I-3,I-6 Indicator Parameters**

C-l,C-2,C-3 24 VOCs I-l,I-4,1-5 I-7,I-8 Indicator Parameters

C-6,I-3 6 Alcohols***

All Clusters except 13 Anions & Cations**** (1 well/cluster)I

I See Note 3 Anions & Cations I I Total 64I

Olin's Phase I Surface Water & Sediment PlanI Locations •Samples Parameters.'J Sil-l ,sw-3 ,su-s 3 sw Full HSL

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3 SED Indicator ParametersI'

sw-2,sw-4 2 Sll vocs 2 SED Indicator Parameters

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Total 10

* Full HSL: VOCe, Semi-VOCs, HSL Metals ,, ** Indicator Parameters: Temperature, pH, Specific Conductance,

Disolved Oxygen, Alkalinity-r

*** Alcohols: Ethanol, Methanol, Isopropanol

**** Anions ' Cations: Magnesium Chloride Sodium Nitrate Potassium Sulfate Iron Manganese Calcium

NOTE: Olin will be sampling all the wells in one well cluster. for anion & cation analysis. The cluster will be chosen based on field observations of the indicator parameters.

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cmt• s SJ2li t Sam12ling Plan

Well Cluster

c-4,c-s,c-6 1-2,1-3,1-6

C-l,C-2,C-3 I-1,1-4,I-S,I-7,I-8

C-6,I-3

All clusters

sw-1 ,Sl'l-3 ,su-s

,, Total

•Sam12les

lt

3 (see note)

lt

3 (see note)

1 SEDt

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Page 2

Parameters

Full HSL . Indicator Parameters

VOCs Indicator Parameters

Alcohols

Anions & Cations

Full HSL Indicator Parameters

I' t Sample 1 well/location from any of the clusters/locations listed ,, ,,I NOTE: Olin will be sampling all the wells in one well cluster for

anion & cation analysis. The cluster will be chosen based on field observations of the indicator parameters. CDH should pick a different well cluster using . the same criteria and sample all the wells in that cluster. The analysis for these samples shall included voce, Indicator parameters and anions & cations.

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• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

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TABLE 1

SAMPLING AND ANALYTICAL PLAN FOR FIRST ROUND GRI/FS WELLS AND FIRST ROUND POST-CLOSURE WELLS

(Scheduled for May 1988)

1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 C-1 C-2 C-3 C-4 C-5 C-6 Stream

Field meuurementa Water Elevation

Field analyses

Parameter

pH

Spec cond Temperature Alkalinity Dissolved 0 2

• • • • • • • • • • • • • • Laboratory analYMS

Parameter

Catiouud uJons (NOTE)

Volatile orpnics Semi-volatile

oranics HSL metals

Alcohols (eth, met. ilopr)

• - will be aampled and analyzed

NOTE: AU wells of a cluster will be aampled ud analyzed for the parameten above except for catiom ud anions for which oDly one well of a cluster will be IIIDPied it pH, IPfiCUIC conductivity, IDd alkaliDity are similar in all wells of the cluster. If pH, IPf)Cirac conductivity, and/or alkaliDity are diaimilar in a cluster, each dissimilar weU will be ampled for cations IDd anions. AI a verification, Cor one cluster abowiq aimilar pH, specific conductivity, and albl1Dity amona wells, aU wells of that cluster will be sampled and analyzed for cations and anions durlaa the lint round.

Cations aad anions: Ma, Na. K, Fe, Ca. Mn; Cl, N03, SOi._

HSL metals: AI, Sb, AI, Ba, Be, Cd, Ca. Cr, Co, Cu, Fe, Pb, Ma, MD, Ra, Ni, K, Se, Aa, Na, Th,v, Zo Alcohols: Ethanol, methanol, ilopropuol

Note that post-closure wells C-1, C-2, C-3, C-4, C-5, and C-6 are not a part of the Groundwater RI/FS but are included here for information

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TABLE 2

SAMPLING AND ANALYTICAL PLAN FOR FIRST ROUND GRI/FS WELLS AND FIRST ROUND POST-CLOSURE WELLS

(To be scheduled for bue flow conditions and in conjunction with biological assessment)

Field meuurements Water Elevation

Field analyses

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Parameter

pH Spec cond

Temperature

Alkalinity

Diuolved 0 1

Laboratory ualyses

Parameter

cations and anions

Volatile orpnics

Semi-volatile orpnics

HSL metals

\ Alcohols (eth, met, ilopr)

Stream S-1 S-2 S-3 S-4 S-5

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•

• - wW be IIIDPied IDd anatyzed

cations and anions: MJ, Na. K, Fe, C.. MD; Cl, NO,, SO.

SEDI SED2 SED3 SED4 SEDS

•

HSL metals: AI, Sb, AI, Ba, Be, Cd, ca, Cr, Co, Cu, Fe, b, MJ, MD, H&, Ni, K, Se, A&, Na, Tb, V, ZD

Alcohols: Ethanol, methanol. ilopropaDol