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GEOMATRIX <br /> TABLE 2 Page 2 of 2 <br /> INDICATOR PARAMETERS FOR INTRINSIC BIOREMEDIATION <br /> GROUNDWATER MONITORING <br /> Date of Temp. EC DO' ORP' A1kaGnity6 Iron Nitrate Sulfate9 <br /> Well Measurement (de .C) pIh (umhos/cm) (m ) (mV) (mg/L) ( ) (mg/L) (m ) <br /> MW-8 11/07/01 23.8 7.3 2300 0.89 -80.5 521 <0.05 4.5 236 <br /> (Cont.) 06/04/02 20.7 7.12 2080 0.68 -95.3 559 0.838 18.1 291 <br /> ' 11/26/02 23.8 7.32 2242 1.04 -78.8 551 0.652 4.1 180 <br /> MW-10 07/19/95 22.5 7.25 2400 2.05 52 470 <0.05 2.2 270 <br /> 04/30/96 22.8 6.9 2050 1.6 223.1 510 <0.1 3.4 410 <br /> 07/29/96 23.0 6.9 1713 1.4 171 470 <0.1 2.8 260 <br /> g 11/11/96 24.0 7.2 2580 0.4 81.4 450 <0.1 3.5 280 <br /> °2 06/04/98 20.0 7.40 2530 0.13 119 460 <0.1 4.5 330 <br /> 12/10/98 21.5 7.54 2020 0.75 118 440 <0.10 5.2 250 <br /> ' 6/17/9910 21.6 6.84 2320 1.13 204.4 460 <0.10 4.7 220 <br /> b 12/02/99 22.0 7.61 1590 0.35 -232 510 <0.10 4.5 270 <br /> 11/03/00 22.0 7.2 1815 0.20 61 482 0.126 16.5 215 <br /> 05/02/01 -- 7.3 1799 0.80 72 510 <0.05 3.6 209 <br /> 11/07/01 22.2 7.4 2010 0.55 61 454 <0.05 3.5 228 <br /> MW-12 07/20/95 23.0 7.02 2300 2.11 -119 560 0.24 2.6 170 <br /> 04/30/96 26.5 7.0 2200 0.2 -231.2 720 2.6 2.1 70 <br /> 07/29/96 27.0 6.8 2213 0.4 -228.3 750 3.1 1.3 57 <br /> 11/11/96 24.5 7.06 2490 0.4 -346.1 650 0.61 2.5 100 <br /> 06/04/98 22.5 7.39 2670 0.92 -71 860 3.8 0.4 34 <br /> 12/10/98 21.4 7.55 2080 2.52 -128 760 <0.10 2.1 89 <br /> 12/02/99 23.7 8.10 1510 3.32 -214 440 <0.10 7.1 300 <br /> 11/03/00 23.6 7.4 1528 0.58 191 545 <0.05 4.8 137 <br /> 11/07/01 24.1 7.5 1850 0.64 -267 541 <0.05 1.9 128 <br /> 11/26/02 23.3 7.49 1925 1.32 -169.5 396 <0.05 7.4 252 <br /> MW-14 04/30/96 23.8 7.0 2150 3.0 256.6 540 <0.1 1.5 390 <br /> 07/29/96 23.0 7.0 1813 1.7 142.1 460 <0.1 2.5 310 <br /> 11/11/96 22.0 7.11 2920 1.4 102.1 510 <0.1 2.3 250 <br /> 06/04/98 20.0 7.24 2870 0.73 109 530 <0.1 2.6 320 <br /> 12/10/98 20.1 7.54 2170 1.18 128 440 <0.10 4.2 320 <br /> ' 12/02/99 21.2 7.70 1930 0.29 -202 450 <0.10 3.8 360 <br /> J 11/03/00 22.3 7.2 1860 0.20 153 431 <0.05 4.7 288 <br /> 8 11/07/01 22.3 7.3 2210 0.59 97.6 514 <0.05 2.4 229 <br /> ' 1. Temperature(Temp.)measured using a field thermometer,in degrees Celsius. <br /> -':not measured. <br /> 2. pH measured using a field meter,in standard units. <br /> ' 3. Electrical conductance(EC)measured using a field meter,in micromhos per centimeter(umhos/cm). <br /> 4. Dissolved oxygen(DO)concentration measured using a field meter,in milligrams per liter(mg/L). <br /> 5. Oxidation-reduction potential(ORP)measured using a field meter,in millivolts(mV). <br /> 6. Alkalinity analyzed using U.S.Environmental Protection Agency(U.S.EPA)Method 310.1,reported in mg/L as calcium carbonate. <br /> 7. Dissolved iron analyzed using U.S.EPA Method 200.7 for the July 1995 samples and U.S.EPA Method 6010 for the subsequent <br /> samples,reported in mg/L. <br /> 8. Nitrate w nitrogen analyzed using U.S.EPA Method 353.1 for the 1996 samples and U.S.EPA Method 300 for the other <br /> samples,reported in mg/L. <br /> 9. Sulfate analyzed using U.S.EPA Method 375.4 for the 1996 samples and U.S.EPA Method 300 for the other samples,reported in mg/L. <br /> • 10. DO and ORP readings were measured on July 9,1999. <br /> 11. Wells MW-10 and MW-14 were decommissioned on December 5,2001,in accordance with State and County requirements. <br /> ' epoiK+'cza5slwt:mwbs tsm roux!, <br />