A22_Tables_ _Figures.pdf

Table 1. Sampling Schedule

1 – Basic parameters are water temperature, specific conductance, pH, dissolved oxygen, and turbidity.

SCHEDULE

Phase 1 Pre-Project

(months before dredging)

Phase 2 (Time from onset of dredging in days) Timing may be adjusted depending on the dredging schedule.

Phase 3 (after completion of dredging-days)

1 2 3 3 17 31 45 59 73 30 60 90

MONITORING WELLS (8)

Basic Parameters1 X X X X X X X X X X X X Nit., Alk., Hardness X X X X X X X X X X X X

Metals X X X X X X X X X X X X PAHs, PCBs, Pesticides (MWs #7 and #8 only)

X X X X X X X X X X X X

CITY WELLS (1)

Basic Parameters1 X X X X X X X X X X X X

Nit., Alk., Hardness X X X X X X X X X X X X Metals X X X X X X X X X X X X

PAHs, PCBs, Pesticides X X X X X X X X X X X X

RESIDENTIAL WELLS (4)

Basic Parameters1 X X X X X X X X X X X X

Nit., Alk., Hardness X X X X X X X X X X X X

Metals X X X X X X X X X X X X PAHs, PCBs, Pesticides

RIVER AND CARRIAGE WATER (2)

Basic Parameters1 X X X X X X

Nit., Alk., Hardness X X X X X X Metals X X X X X X

PAHs, PCBs, Pesticides

TABLE 2 – WATER ANALYSIS

PARAMETER

TESTING

METHOD CITATION

TESTING METHOD

OR PROJECT

PQL*

APPROX.

NUMBER OF

SAMPLES

Alkalinity EPA 310.1 or 310.2

10 mg/l as CaCO3

Hardness EPA 130.1 or

130.2 10 mg/l as

CaCO3

Nitrate+Nitrite Nitrogen

EPA 353.1 or 353.3

EPA 1983 0.1 mg/l 168

Nitrite Nitrogen EPA 354.1 EPA 1983 0.1 mg/l 168 Nitrate Nitrogen CALC. 1 ug/l 168

Arsenic EPA 206.2 EPA 1986 0.1 ug/l 168 Cadmium EPA 213.2 EPA 1986 1 ug/l 168 Chromium EPA 218.2 EPA 1986 1 ug/l 168 Copper EPA 220.2 EPA 1986 1 ug/l 168 Lead EPA 239.2 EPA 1986 1 ug/l 168

Nickel EPA 249.2 EPA 1986 1 ug/l 168 Zinc EPA 289.2 EPA 1986 1 ug/l 168 Iron EPA 236.2 1 ug/l 168

Manganese EPA 243.2 1 ug/l 168 PCB’s and

CHLORINATED

PESTICIDES**

Total PCB’s (Arochlors 1016, 1221, 1232, 1242, 1248, 1254, 1260)

SW-846

3520/8080 EPA 1986 2 ug/l 36

Aldrin

SW-846

3520/8080 EPA 1986 0.04 ug/l 36

Alpha BHC

SW-846

3520/8080 EPA 1986 0.03 ug/l 36

Beta BHC SW-846 3520/8080

EPA 1986 0.06 ug/l 36

Delta BHC

SW-846

3520/8080 EPA 1986 0.09 ug/l 36

Gamma BHC (Lindane)

SW-846

3520/8080

EPA 1986 0.04 ug/l 36

Heptachlor

SW-846

3520/8080 EPA 1986 0.03 ug/l 36

Heptachlor Epoxide

SW-846

3520/8080

EPA 1986 0.83 ug/l 36

4,4 DDD SW-846

3520/8080

EPA 1986 0.11 ug/l 36

4,4 DDE

SW-846

3520/8080 EPA 1986 0.04 ug/l 36

4,4 DDT SW-846

3520/8080

EPA 1986 0.12 ug/l 36

Dieldrin

SW-846

3520/8080 EPA 1986 0.02 ug/l 36

Endrin SW-846 3520/8080

EPA 1986 0.06 ug/l 36

Chlordane

SW-846

3520/8080 EPA 1986 0.14 ug/l 36

Methoxychlor

SW-846

3520/8080 EPA 1986 0.5 ug/l 36

Endosulfan I SW-846 3520/8080

EPA 1986 0.14 ug/l 36

Endosulfan II

SW-846

3520/8080 EPA 1986 0.04 ug/l 36

Endosulfan sulfate

SW-846

3520/8080

EPA 1986 0.66 ug/l 36

Endrin Aldehyde

SW-846

3520/8080 EPA 1986 0.23 ug/l 36

Toxaphene SW-846 3520/8080

EPA 1986 2 ug/l 36

PAHs

FIELD

MEASUREMENTS

PH EPA 150.1 EPA 1983 0.1 st. units Site dependent

Temperature EPA 170.1 EPA 1983 0.1 deg. C Site dependent Specific

Conductance EPA 120.1 EPA 1983 1 us/cm Site dependent

Dissolved Oxygen EPA 360.1 EPA 1983 0.1 mg/l Site dependent

Turbidity EPA 180.1 EPA 1983 1 ntu Site dependent

* Detection limits refer to final analyte concentrations, including back calculations, and do not refer to the basic instrument detection limits. All detection limits are minimum acceptable levels.

** Florosil column cleanup, method 3620, followed by sulfur cleanup, method 3660, may be required to remove interferences.

Literature Cited

American Public Health Association. 1995. Standard Methods for the Examination of Water and Wastewater, 19th ed. American Public Health Association, Washington DC.

Environmental Protection Agency. 1983. Methods for Chemical Analysis of Water and Wastes. EPA- 60014-79-020. Environmental Monitoring and Support Laboratory, Cincinnati, Ohio.

Figure 1. Project Location

MW-3

MW-1

MW-5

MW-2

R-4 R-9

MW-6

MW-7

City Well

MW-4

R-5

R-3

R-12

R-1

R-2 R-10

R-8R-7

R-6

R-11

Wabasha Pit Monitoring wells and Residential Wells

0 1,000 2,000500 Feet

MW-8