6991PE21Q000001 Table 1 BMV - ESL.PDF

Table 1. Parameter Benchmark Values

Parameter

Parameter Abbreviation for Sampling and Custody

Forms

Analytical Method

Detection Limit

(in µg/L) Reporting

Units

Benchmark Value

(in reporting units-µg/L)

Environmental Screening Levels (4) (in µg/L) pH pH

EPA 9040

or portable field instrument

Not applicable standard units (s.u.) 6.5-8.5 (1) NA

Total suspended solids

TSS

EPA 160.2

/ Standard

Method

(SM) 2540-

D

1,000 Micrograms per liter (µg/l))

100,000 (1) NA

Specific conductance SC

EPA 120.1

/ SM 2510-

B or portable field instrument

1.0 micromhos per centimeter

(µmhos/cm)

200 (1) NA

Oil and grease O&G EPA 413.2

EPA 1664 1,000 µg/l 15,000 (1) NA

Antimony Sb EPA 6020 0.5 µg/l 6.0 (2) 30

Arsenic As EPA 6020 0.5 µg/l 168.54 (1) 0.14

Barium Ba EPA 6020 1.0 µg/l 1,000 (2) 1,000

Beryllium Be EPA 6020 0.1 µg/l 4.0 (2) 0.53

Cadmium Ca EPA 6020 0.2 µg/l 15.9 (1) 0.25

Chromium Cr EPA 6020 0.5 µg/l 50.0 (2) 180

Cobalt Co EPA 6020 0.5 µg/l 50.0 (3) 3.0

Copper Cu EPA 6020 0.5 µg/l 63.6 (1) 3.1

Lead Pb EPA 6020 0.5 µg/l 81.6 (1) 2.5

Mercury Hg EPA 1631 0.1 µg/l 2.4 (1) 0.025

Molybdenum Mo EPA 6020 0.5 µg/l 10.0 (3) 240

Nickel Ni EPA 6020 0.5 µg/l 1,417 (1) 8.2

Selenium Se EPA 6020 0.5 µg/l 238.5 (1) 5.0

Silver Ag EPA 6020 0.2 µg/l 31.8 (1) 0.19

Thallium Tl EPA 6020 0.5 µg/l 2.0 (2) 4.0

Vanadium V EPA 6020 0.5 µg/l 100 (3) 19

Zinc Zn EPA 6020 0.5 µg/l 117 (1) 81 Total petroleum hydrocarbons

(middle distillates, diesel and motor oil range)

TPH C9 to C25 EPA 8015 0.5 µg/l NA 210

Abbreviation for Sampling and Custody

Forms

Analytical Method

Detection Limit

(in µg/L)

Reporting Units

Benchmark Value

(in reporting units-µg/L)

Environmental Screening Levels (4) (in µg/L)

TPH (residual fuels, oil and grease range)

TPH C24 to C40 EPA 8015 0.5 µg/l NA 210

PCB-Aroclor 1016 Aroclor 1016 EPA 8082 0.5 µg/l 0.127 NA

PCB-Aroclor 1221 Aroclor 1221 EPA 8082 0.5 µg/l 100 NA

PCB-Aroclor 1232 Aroclor 1232 EPA 8082 0.5 µg/l 0.318 NA

PCB-Aroclor 1242 Aroclor 1242 EPA 8082 0.5 µg/l 0.20 NA

PCB-Aroclor 1248 Aroclor 1248 EPA 8082 0.5 µg/l 2.544 NA

PCB-Aroclor 1254 Aroclor 1254 EPA 8082 0.5 µg/l 100 NA

PCB-Aroclor 1260 Aroclor 1260 EPA 8082 0.5 µg/l 0.477 NA

Poly-chlorinated biphenyls

(total Aroclors)

PCBs

EPA 8082 0.5 µg/l

0.00017

(1) California SWRCB NPDES General Permit for Discharges of Stormwater Associated with Industrial Activities

(2) Water quality objectives for municipal supply, Basin Plan for the San Francisco Bay Basin

(3) Water quality objectives for agricultural supply threshold values, Basin Plan for the San Francisco Bay Basin