Remedial Action Plan - Rochford Field - Newhall Remediation Project

TABLE IIb
SUMMARY OF ANALYTICAL DATA - GROUNDWATER
ROCHFORD FIELD ("GB")
HAMDEN, CONNECTICUT
Page 6 of 8
PARAMETER
Surface
Water
Protection
Criteria
Residential
Volatilization
Criteria
Sample ID:
Comments:
Sample Date:
RF-HA207-MW
19-Nov-04 11-Feb-05 13-May-05 25-Aug-05
Total Cyanide (mg/l): 335.4 NE NE
Other Analyses (mg/l)
Alkalinity (CaCO 3 ) 310.1 -- --
Ammonia as Nitrogen 350.3 -- --
B. O. D./ 5 Day 405.1 -- --
Chloride 300.0 -- --
Fluoride 300.0 -- --
Iron (dissolved) 200.8 NE NE
Manganese (dissolved) 200.8 NE NE
Nitrate as Nitrogen 300.0 -- --
pH 150.1 -- --
Sulfate 300.0 -- --
Total Dissolved Solids 160.1 -- --
Total Suspended Solids 160.2 -- --
ND ND ND ND
390 210 120 290
6.6 3.1 0.46 5.3
18 21 5.5 8
31 20 11 37
-- -- -- --
ND 5.8 1.8 0.67
3.8 1.4 0.57 2.3
ND 0.57 ND ND
6.96 6.62 6.80 6.73
12 10 3.7 ND
500 320 150 370
110 1000 6 180
NOTES:
1. Sampling methodolgies changed to GAA standards as of July 2004 sampling round.
2. This table includes only those compounds detected.
3. RSR criteria means Remedial Standard Regulation criteria established by the
Connecticut Department of Environmental Protection (CTDEEP).
4. NE means numeric RSR criteria not established by CTDEEP.
5. ND means that the compound was not detected above laboratory detection limit.
6. Concentrations in bold type exceed criteria established by CTDEEP.
7. ug/L means micrograms per liter; mg/L means milligrams per liter.
8. B: Compound also detected in one or more associated laboratory blanks.
Chloromethane reported by laboratory as a likely analytical laboratory artifact.
Haley & Aldrich, Inc.
G:\PROJECTS\27892 Newhall\426-RF\2013-0603 Table IIa-IIb RF GW Sum 092205.xls
June 2013