1 STATION NUMBER: 0208726995 STATION NAME: HARE SNIPE CREEK AT SR 1822 NR LEESVILLE, NC DRAINAGE AREA: SQ MI STATE: NORTH CAROLINA COUNTY: WAKE LATITUDE/LONGITUDE:355230 0784144 STATISTICAL SUMMARY OF SELECTED WATER QUALITY DATA COLLECTED FROM OCT 2002 TO AUG 2003 PERCENT OF SAMPLES IN WHICH VALUES DESCRIPTIVE STATISTICS WERE LESS THAN OR EQUAL TO THOSE SHOWN ------------------------------------- -------------------------------------- ------------------------------------------------------ SAMPLE (MEDIAN) WATER-QUALITY CONSTITUENT SIZE MAXIMUM MINIMUM MEAN 95 % 75 % 50 % 25 % 5 % ------------------------------------- -------------------------------------- ------------------------------------------------------ 00027 Collecting agenc code 8 1028.000 1028.000 1028.000 1028.000 1028.000 1028.000 1028.000 1028.000 00028 Analyzing agency code 8 80020.000 1028.000 60272.000 80020.000 80020.000 80020.000 20776.000 1028.000 72000 Landsurface alti feet 8 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 00061 Discharge, insta cfs 6 6.496 1.758 4.442 6.496 6.319 5.092 1.903 1.758 82398 Sampling method code 6 40.000 40.000 40.000 40.000 40.000 40.000 40.000 40.000 00025 Air pressure mm of Hg 5 762.000 749.000 -- -- -- -- -- -- 00300 Dissolved oxygen mg/L 7 11.000 6.030 8.371 11.000 10.790 8.180 6.100 6.030 00301 Diss oxygen,%sat % of saturatio 5 94.300 80.600 -- -- -- -- -- -- 00400 pH standard units 7 7.210 6.500 6.886 7.210 7.200 6.800 6.640 6.500 00095 Specific cond at uS/cm @ 25C 7 133.000 79.400 96.557 133.000 97.000 94.000 86.300 79.400 00020 Temperature, air degrees C 5 28.600 1.000 -- -- -- -- -- -- 00010 Temperature, wat degrees C 7 25.030 6.970 17.171 25.030 24.900 17.800 7.600 6.970 00940 Chloride, wf mg/L 6 19.610 5.610 8.648 19.610 10.550 6.485 6.030 5.610 00945 Sulfate, wf mg/L 6 6.400 2.460 4.695 6.400 5.965 5.100 3.082 2.460 00625 NH3+orgN, wu mg/L as N 6 1.339 0.352 0.625 1.339 0.821 0.526 0.357 0.352 71846 Ammonia, wf mg/L as NH4 3 0.170 0.090 -- -- -- -- -- -- 00608 Ammonia, wf mg/L as N 6 -- -- -- -- -- -- -- -- 71851 Nitrate, wf mg/L 3 2.720 1.590 -- -- -- -- -- -- 00618 Nitrate, wf mg/L as N 3 0.610 0.360 -- -- -- -- -- -- 00631 NO2+NO3, wf mg/L as N 6 0.638 0.300 0.433 0.638 0.489 0.425 0.354 0.300 71856 Nitrite, wf mg/L 3 0.080 0.040 -- -- -- -- -- -- 00613 Nitrite, wf mg/L as N 6 0.025 -- 0.013* *0.025 *0.024 *0.010 *0.006 *0.006 00605 Organic nitrogen mg/L 3 0.520 0.280 -- -- -- -- -- -- 00671 Orthophosphate, mg/L as P 6 -- -- -- -- -- -- -- -- 49570 Particulate-N, s mg/L 6 0.159 0.040 0.089 0.159 0.141 0.077 0.044 0.040 00665 Phosphorus, wu mg/L 6 0.068 0.023 0.046 0.068 0.064 0.045 0.031 0.023 00600 Total nitrogen, mg/L 6 1.710 0.790 1.058 1.710 1.395 0.880 0.798 0.790 00694 Total carbon, ss mg/L 6 1.089 0.262 0.646 1.089 0.952 0.628 0.337 0.262 00688 Inorg carbon, ss mg/L 6 -- -- -- -- -- -- -- -- PAGE 1- 1 1 PAGE 1- 2 PERCENT OF SAMPLES IN WHICH VALUES DESCRIPTIVE STATISTICS WERE LESS THAN OR EQUAL TO THOSE SHOWN ------------------------------------- -------------------------------------- ------------------------------------------------------ SAMPLE (MEDIAN) WATER-QUALITY CONSTITUENT SIZE MAXIMUM MINIMUM MEAN 95 % 75 % 50 % 25 % 5 % ------------------------------------- -------------------------------------- ------------------------------------------------------ 00689 Organic carbon, mg/L 6 1.084 0.235 0.640 1.084 0.951 0.627 0.330 0.235 00681 Organic carbon, mg/L 6 8.109 3.982 5.106 8.109 6.047 4.587 4.005 3.982 90902 E. coli, modif m colonies/100mL 6 360.000 39.000 184.500 360.000 270.000 210.000 45.750 39.000 49295 1-Naphthol, w,gf ug/L 6 -- -- -- -- -- -- -- -- 82660 26Diethylaniline ug/L 6 -- -- -- -- -- -- -- -- 61615 EthMePhAminoProp ug/L 6 -- -- -- -- -- -- -- -- 61618 ChlrDiEthAcetani ug/L 6 -- -- -- -- -- -- -- -- 04040 CIAT, wf ug/L 6 -- -- -- -- -- -- -- -- 61620 2Ethyl6methylani ug/L 6 -- -- -- -- -- -- -- -- 61625 3,4-Dichloroanil ug/L 6 -- -- -- -- -- -- -- -- 61633 4Chloro2methylph ug/L 6 -- -- -- -- -- -- -- -- 49260 Acetochlor, wf ug/L 6 -- -- -- -- -- -- -- -- 46342 Alachlor, wf ug/L 6 -- -- -- -- -- -- -- -- 99995 a-HCH-d6, sur200 percent 6 100.952 86.095 93.443 100.952 98.095 92.667 89.873 86.095 39632 Atrazine, wf ug/L 6 0.010 -- 0.006* *0.010 *0.008 *0.005 *0.005 *0.003 61635 Azinphos-methyl ug/L 6 -- -- -- -- -- -- -- -- 82686 Azinphos-methyl, ug/L 6 -- -- -- -- -- -- -- -- 82673 Benfluralin,w,gf ug/L 6 -- -- -- -- -- -- -- -- 82680 Carbaryl, w,gf<. ug/L 6 0.068 -- 0.022* *0.068 *0.034 *0.015 *0.006 *0.005 61636 Chlorpyrifos oxo ug/L 6 -- -- -- -- -- -- -- -- 38933 Chlorpyrifos, wf ug/L 6 -- -- -- -- -- -- -- -- 82687 cis-Permethrin,g ug/L 6 -- -- -- -- -- -- -- -- 61585 Cyfluthrin, wf ug/L 6 -- -- -- -- -- -- -- -- 61586 Cypermethrin, wf ug/L 6 -- -- -- -- -- -- -- -- 82682 DCPA, w,gf<.7u ug/L 6 -- -- -- -- -- -- -- -- 62170 Desulfinyl fipro ug/L 6 0.005 -- 0.003* *0.005 *0.004 *0.003 *0.002 *0.001 61638 Diazinon oxon, w ug/L 4 -- -- -- -- -- -- -- -- 39572 Diazinon, wf ug/L 6 0.108 -- 0.031* *0.108 *0.059 *0.014 *0.005 *0.001 99994 Diazinon-d10,sur percent 6 112.727 101.887 104.647 112.727 108.135 102.381 101.900 101.887 38454 Dicrotophos, wf ug/L 6 -- -- -- -- -- -- -- -- 39381 Dieldrin, wf ug/L 6 -- -- -- -- -- -- -- -- 82662 Dimethoate, w,gf ug/L 6 -- -- -- -- -- -- -- -- 61644 Ethion monoxon, ug/L 6 -- -- -- -- -- -- -- -- 82346 Ethion, wf ug/L 6 -- -- -- -- -- -- -- -- 61645 Fenamiphos sulfo ug/L 6 -- -- -- -- -- -- -- -- 61646 Fenamiphos sulfo ug/L 6 -- -- -- -- -- -- -- -- 61591 Fenamiphos, wf ug/L 6 -- -- -- -- -- -- -- -- 62169 DesulfFipronil a ug/L 6 -- -- -- -- -- -- -- -- 62167 Fipronil sulfide ug/L 6 0.006 -- 0.004* *0.006 *0.005 *0.004 *0.003 *0.001 62168 Fipronil sulfone ug/L 6 -- -- -- -- -- -- -- -- 1 PAGE 1- 3 PERCENT OF SAMPLES IN WHICH VALUES DESCRIPTIVE STATISTICS WERE LESS THAN OR EQUAL TO THOSE SHOWN ------------------------------------- -------------------------------------- ------------------------------------------------------ SAMPLE (MEDIAN) WATER-QUALITY CONSTITUENT SIZE MAXIMUM MINIMUM MEAN 95 % 75 % 50 % 25 % 5 % ------------------------------------- -------------------------------------- ------------------------------------------------------ 62166 Fipronil, wf ug/L 6 0.021 0.007 0.012 0.021 0.015 0.012 0.008 0.007 61649 Fonofos oxon, wf ug/L 6 -- -- -- -- -- -- -- -- 04095 Fonofos, wf ug/L 6 -- -- -- -- -- -- -- -- 04025 Hexazinone, wf ug/L 2 -- -- -- -- -- -- -- -- 61593 Iprodione, wf ug/L 6 -- -- -- -- -- -- -- -- 61594 Isofenphos, wf ug/L 6 -- -- -- -- -- -- -- -- 61652 Malaoxon, wf ug/L 6 -- -- -- -- -- -- -- -- 39532 Malathion, wf ug/L 6 -- -- -- -- -- -- -- -- 61596 Metalaxyl, wf ug/L 6 -- -- -- -- -- -- -- -- 61598 Methidathion, wf ug/L 6 -- -- -- -- -- -- -- -- 61664 Methyl paraoxon, ug/L 6 -- -- -- -- -- -- -- -- 82667 Methyl parathion ug/L 6 -- -- -- -- -- -- -- -- 39415 Metolachlor, wf ug/L 6 0.064 0.009 0.024 0.064 0.036 0.017 0.009 0.009 82630 Metribuzin, wf ug/L 6 -- -- -- -- -- -- -- -- 61599 Myclobutanil, wf ug/L 6 -- -- -- -- -- -- -- -- 82683 Pendimethalin, g ug/L 6 -- -- -- -- -- -- -- -- 61666 Phorate oxon, wf ug/L 6 -- -- -- -- -- -- -- -- 82664 Phorate, w,gf<.7 ug/L 6 -- -- -- -- -- -- -- -- 61668 Phosmet oxon, wf ug/L 6 -- -- -- -- -- -- -- -- 61601 Phosmet, wf ug/L 6 -- -- -- -- -- -- -- -- 04037 Prometon, wf ug/L 6 0.056 0.008 0.026 0.056 0.051 0.017 0.011 0.008 04036 Prometryn, wf ug/L 6 -- -- -- -- -- -- -- -- 82676 Pronamide, w,gf< ug/L 6 -- -- -- -- -- -- -- -- 04035 Simazine, wf ug/L 6 -- -- -- -- -- -- -- -- 82670 Tebuthiuron,w,gf ug/L 6 -- -- -- -- -- -- -- -- 61674 TerbufosOxonSulf ug/L 6 -- -- -- -- -- -- -- -- 82675 Terbufos, w,gf<. ug/L 6 -- -- -- -- -- -- -- -- 04022 Terbuthylazine, ug/L 6 -- -- -- -- -- -- -- -- 82661 Trifluralin,w,gf ug/L 6 -- -- -- -- -- -- -- -- 38775 Dichlorvos, wf ug/L 6 -- -- -- -- -- -- -- -- 70331 Suspnd sed <63u, percent 6 96.360 85.700 92.298 96.360 95.340 94.245 87.605 85.700 80154 Suspnd sedmnt co mg/L 6 21.000 5.000 12.000 21.000 18.750 11.000 5.750 5.000 80155 Suspnd sedmnt lo tons/day 4 0.350 0.030 -- -- -- -- -- -- 50280 Site visit purpo code 8 1006.000 1001.000 1002.875 1006.000 1006.000 1001.000 1001.000 1001.000 71999 Sample purpose code 8 15.000 15.000 15.000 15.000 15.000 15.000 15.000 15.000 99972 Sample vol, Sch mL 6 950.000 905.000 939.167 950.000 949.250 945.500 931.250 905.000 84164 Sampler type code 6 3070.000 3045.000 3053.333 3070.000 3070.000 3045.000 3045.000 3045.000 * - VALUE IS ESTIMATED BY USING A LOG-PROBABILITY REGRESSION TO PREDICT THE VALUES OF DATA BELOW THE DETECTION LIMIT