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HomeMy WebLinkAboutNC0032719_Report_20190731 (3)Table S. Summary of Surface Water Sampling Analytical Results Valhalla WTP Edenton, Chowan County Well ID Date Collected Chloride TDS Total Iron Total Manganese Dissolved Iron Dissolved Manganese Temperature UQ DO (mg/L) Specific Conduc- tivity (MS/cm) Conduc- t/ (MS/cm) pH ORP (mv) Turbidity (NTU) 5/26/2016 21 2,800 54 <100 38 26 6.16 235 240 5.37 152 1/25/2017 38 2,800 78 370 74 11.5 9.7 292 216 7.25 108 231 10/2/2017 21 14,000 500 <200 210 15.8 6.67 184 153 7.80 49.8 51.3 SWl 1/10/2018 39 140 900 67 570 57 5.6 10.52 24.3 153 6.41 192 9.14 7/11/2018 21 <17 610,000 2,100 300,000 1,100 NS NS NS NS NS NS NS 1/9/2019 29 160 3,200 53 2,000 61 12.7 12.47 223.5 171 6.86 59.7 19.3 7 1 2019 10 90 34,000 120 720 <10 33.3 5.61 126.2 146.5 6.99 111.9 34.8 5/26/2016 30 6,900 57 <100 <10 21.3 7.66 295 276 5.54 170 1/25/2017 28 410 34 <100 <10 11.5 8.3 305 226 7.12 921 12 10/2/2017 29 390 30 <100 <10 18.2 8.22 309 268 7.42 42.3 9.18 SW2 1/11/2018 35 190 3,800 58 240 21 8.3 9.47 339.8 232 6.67 92.1 10.6 7/12/2018 40 210 360 42 230 19 22.3 6.6 33.3 314.5 6.97 47.7 63.8 1/10/2019 31 160 420 44 310 38 8.9 15.26 281.3 192.4 6.87 9.9 11.9 7/2/2019 24 160 990 130 <100 <10 24.1 7.29 295.3 290.4 6.72 903 22.5 5/25/2016 510 8,900 120 <100 99 18.6 3.6 1869 1637 6.06 149 1/25/2017 560 9,600 290 <100 180 15.1 10.9 2249 1824 6.77 81 41 10/3/2017 840 30,000 160 1,000 150 20.1 4.89 2772 2520 6.72 45.7 85.2 SW3 1/11/2018 520 860 12,000 100 2,400 110 6.6 5.65 1577 1024 6.74 105.9 19.4 7/12/2018 440 950 7,400 89 900 78 22.2 4.61 1619 1528 7.06 -72 94 1/10/2019 540 1,000 8,100 110 4,000 110 13.8 4.73 1,920 1,508 6.64 59.2 14.9 7/2/2019 670 1,400 39,000 220 <100 44 23.5 4.04 2,802 2,727 6.68 81.6 581 5/26/2016 320 1,400 140 160 76 19.9 6.28 1054 952 5.70 189 1/24/2017 280 900 86 130 74 11.7 9.28 1209 902 7.50 69 7.1 10/3/2017 460 4,400 43475 <100 220 16.5 7.42 1669 1391 6.84 45 17.5 SW4 1/11/2018 380 710 1,300 89 520 91 6.1 8.46 1372 878 6.73 95.2 5.39 7/12/2018 290 670 850 90 220 41 24.1 6.01 1052 1035 7.12 -30 83 1/10/2019 230 490 630 72 400 72 7.9 10.2 959 645 7.14 47.6 9.08 7/2/2019 420 940 2,500 74 <100 <10 26.3 5.32 1,598 1,642 7.14 62.7 23.1 5/25/2016 540 5,100 230 100 20 25.4 6.63 1809 1923 5.36 153 1/24/2017 530 830 210 150 180 12.4 8.56 2126 1617 7.32 44 6.4 10/3/2017 610 3,500 690 <100 200 17.2 5.3 2062 1755 6.88 66.5 11.9 SWS 1/11/2018 250 490 7,800 130 3,600 120 4.2 5.3 8.22 5.32 6.47 33.3 9.91 7/12/2018 430 940 3,800 490 410 62 26 5.62 1404 1438 6.94 -17.2 41 1/10/2019 310 600 1,400 85 910 69 8.5 12.06 1,284 882 7.12 59.6 8.36 7/2/2019 310 710 1100 69 <100 <10 33 7.73 1,270 1,470 7.16 93.7 8.7 1/24/2017 450 6,200 340 <100 38 13.1 8.66 1948 1499 7.25 67 104 10/3/2017 810 1,300 430 <100 280 17.5 5.27 2573 2207 6.80 68.6 9.77 1/11/2018 590 1,100 1,000 220 660 170 8.6 9.44 2078 1423 7.00 54.7 19.3 SW6 7/12/2018 470 1,000 1,100 180 320 63 26 6.15 1550 1578 6.95 9.7 58 1/10/2019 380 1,000 720 96 500 92 9.1 10.68 1,870 1,304 6.96 80.7 6.6 7/2/2019 740 1600 1700 290 <100 130 29.2 3.37 2,782 3,002 6.87 75.7 36.4 5/26/2016 1,300 200 39 <100 11 26.3 12.78 4168 4240 5.31 164 1/24/2017 1,200 180 100 <100 15 11.5 11.06 4239 3148 6.67 110 1.7 10/2/2017 620 6,500 780 <100 <10 18.7 9.74 2071 1783 7.06 111 171 SW7 1/11/2018 400 840 2,600 360 940 95 0.9 8.38 16.03 871 7.53 26.7 47.3 7/12/2018 370 830 350 120 <100 12 27 9.46 1260 1312 7.86 172 83 1/9/2019 630 1,400 <100 48 <100 30 10.3 15.41 23.8 1,720 7.65 -4.1 4.58 712019 850 1800 510 510 <100 <10 29.7 7.22 2,867 3,138 8.43 86.1 7.87 5/2/2017 20 750 72 250 <10 24.3 3.58 210 207 6.84 123 10/3/2017 26 140 76 <100 <10 20.3 7.52 197.2 179 7.57 79.8 1/11/2018 A NS NS NS NS NS NS NS NS NS NS NS NS NS SW8 7/12/2018 32 140 280 100 100 47 27.2 6.08 221.3 231 7.12 62.1 64.1 1/10/2019 34 160 370 23 260 25 NS NS NS NS NS NS NS 7/2/2019 61 250 930 150 <100 <10 28.9 5.65 339.5 364.5 7.63 92.9 37.5 5/2/2017 21 740 72 290 <10 23.9 3.14 250 244 6.95 112 10/3/2017 42 300 84 <100 <10 19.5 5.39 406 251 7.20 89.9 1/11/2018 A NS NS NS NS NS NS NS NS NS NS NS NS NS SW9 7/12/2018 520 580 520 160 230 41 26.7 4.14 864 892 6.69 72.7 57.3 1/10/2019 53 180 340 13 230 14 NS NS NS NS NS NS NS 7/2/2019 110 360 1,200 1 340 <100 I <10 1 27 3.31 555 576 7.02 96.1 25.6 201715A NCAC 26 Std. 230 mg/L 1 500 mg/L I NSE* I NSE* I NSE I NSE I NSE I NSE I NSE I NSE NSE NSE Micrograms per liter (ug/L), is equivalent to parts per billion (ppb). * standard removed after DWR/EPA 2015 review/study of natural levels of iron and manganese Milligrams per liter (mg/L), is equivalent to parts per million (ppm). A = Surface water frozen, unable to collect sample Bold = Concentration exceeds Laboratory Detection Limits NS - No sample collected Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard