05586100 DATA: Chemical and Microbiological Tables, 2000

Station list Available data
ILLINOIS RIVER BASIN

05586100 ILLINOIS RIVER AT VALLEY CITY, IL

LOCATION.-- Lat 39°42'12", long 90°38'43", in SE1/4NW1/4 sec.34, T.15 N., R.14 W., Scott County, Hydrologic Unit 07130011, on upstream side of Norfolk & Southern Corporation Railroad bridge at Flints Creek, 0.4 mi east of Valley City, 1.8 mi downstream from Mauvaise Terre Creek, and at mile 61.3.

DRAINAGE AREA.-- 26,743 mi², does not include diversion from Lake Michigan through the Chicago Sanitary and Ship Canal, which has occurred since Jan. 17, 1900.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1938 to current year. Prior to October 1960, at site 0.2 mi upstream at same datum. Prior to October 1989, published as "at Meredosia." Records are considered equivalent.

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1975-93 and 1996 to current.

SEDIMENT: Water years 1980-99.

SPECIFIC CONDUCTANCE: Water years 1975-81.

WATER TEMPERATURE: Water years 1975-81.

MISCELLANEOUS: Contaminants in streambed sediments, October 1996; contaminants in fish tissue, October 1996.

BIOLOGICAL: Algae, water years 1980-81; Benthic macroinvertebrates, September 1997, September 1998; fish, August 1998.

GAGE.-- U.S. Army Corps of Engineers water-stage recorder, satellite telemeter and rain gage. Datum of gage is 418.00 ft above sea level (levels by U.S. Army Corps of Engineers).

REMARKS.-- Occasional regulation at low flow by navigation dam at La Grange. Since Jan. 17, 1900, flow has included diversion from Lake Michigan through Chicago Sanitary and Ship Canal. Suspended-sediment samples were collected by a local observer twice weekly with additional samples collected during high runoff periods. Since February 1994, samples used to compute sediment record have been collected at upstream side Rt. 106 bridge at Florence at mile 56.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 123,000 ft³/s, May 26-28, 1943; maximum gage height, 28.61 ft, May 26, 1943; minimum daily discharge, 1,330 ft³/s, Sept. 2, 1984.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 3,720 mg/L, Apr. 14, 1981; minimum daily, 14 mg/L, Dec. 26, 1984, July 21, 1993.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 410,000 tons, June 4, 1980; minimum daily, 172 tons, Sept. 2, 1984.

REMARKS FOR CURRENT YEAR.-- Sampled as part of the Lower Illinois River Basin (LIRB) National Water Quality Assessment Program (NAWQA).

SURFACE-WATER QUALITY
					DIS-	OXYGEN,		PH
		AGENCY	AGENCY		CHARGE,	DIS-		WATER	SPE-
		ANA-	COL-		INST.	SOLVED		WHOLE	CIFIC			CALCIUM
		LYZING	LECTING		CUBIC	(PER-	OXYGEN,	FIELD	CON-	TEMPER-	TEMPER-	DIS-
		SAMPLE	SAMPLE	GAGE	FEET	CENT	DIS-	(STAND-	DUCT-	ATURE	ATURE	SOLVED
DATE	TIME	(CODE	(CODE	HEIGHT	PER	SATUR-	SOLVED	ARD	ANCE	AIR	WATER	(MG/L
		NUMBER)	NUMBER)	(FEET)	SECOND	ATION)	(MG/L)	UNITS)	(US/CM)	(DEG C)	(DEG C)	AS CA)
		(00028)	(00027)	(00065)	(00061)	(00301)	(00300)	(00400)	(00095)	(00020)	(00010)	(00915)
OCT 1999
12...	1330	80020	81700	2.45	7560	100	9.5	8.0	742	26.0	17.5	55.2
NOV
16...	1400	80020	81700	1.93	5800	112	11.9	7.4	804	14.0	12.6	68.0
DEC
13...	1445	80020	81700	2.43	7500	107	13.2	7.7	828	6.0	6.2	65.4
JAN 2000
12...	1415	80020	81700	2.40	7400	91	12.0	7.5	723	12.0	3.9	72.0
FEB
08...	1435	80020	81700	1.99	6830	102	13.9	8.0	967	7.0	2.3	77.6
MAR
15...	1330	80020	81700	2.29	7030	95	10.4	8.0	1090	23.0	11.4	73.6
APR
11...	1510	80020	81700	2.17	6590	105	11.1	8.4	897	11.0	12.5	71.9
MAY
04...	1150	80020	81700	6.99	24600	94	8.5	8.1	777	25.0	19.2	65.5
JUN
09...	1910	80020	81700	7.56	25000	97	8.1	8.1	691	28.5	23.0	59.2
28...	1220	80020	81700	12.78	40800	70	5.8	7.7	542	23.5	23.9	52.7
AUG
11...	1200	80020	81700	4.66	15500	77	5.8	8.0	753	30.5	28.0	58.3
SEP
14...	1530	80020	81700	2.97	12500	83	6.6	7.9	786	24.5	25.7	57.6

				ALKA-	BICAR-	CAR-					NITRO-	NITRO-
	MAGNE-	POTAS-		LINITY	BONATE	BONATE	CHLO-	FLUO-	SILICA,		GEN,AM-	GEN,AM-
	SIUM,	SIUM,	SODIUM,	WAT DIS	WATER	WATER	RIDE,	RIDE,	DIS-	SULFATE	MONIA +	MONIA +
	DIS-	DIS-	DIS-	TOT IT	DIS IT	DIS IT	DIS-	DIS-	SOLVED	DIS-	ORGANIC	ORGANIC
	SOLVED	SOLVED	SOLVED	FIELD	FIELD	FIELD	SOLVED	SOLVED	(MG/L	SOLVED	DIS.	TOTAL
DATE	(MG/L	(MG/L	(MG/L	MG/L AS	MG/L AS	MG/L AS	(MG/L	(MG/L	AS	(MG/L	(MG/L	(MG/L
	AS MG)	AS K)	AS NA)	CACO₃	HCO₃	CO₃	AS CL)	AS F)	SIO₂)	AS SO₄)	AS N)	AS N)
	(00925)	(00935)	(00930)	(39086)	(00453)	(00452)	(00940)	(00950)	(00955)	(00945)	(00623)	(00625)
OCT 1999
12...	25.1	6.0	61.5	178	218	--	84.5	.5	4.4	85.7	.41	1.2
NOV
16...	29.6	5.1	59.0	209	255	--	85.5	.5	3.9	85.1	.52	1.1
DEC
13...	29.2	6.5	65.3	198	231	5	88.5	.5	3.3	94.3	.60	1.5
JAN 2000
12...	29.6	5.2	53.0	209	255	--	74.9	.5	5.2	88.5	.51	.97
FEB
08...	33.4	6.6	79.7	223	273	--	119	.5	4.1	104	.55	.99
MAR
15...	31.3	4.8	104	205	247	1	176	.3	3.9	84.0	--	.99
APR
11...	31.1	4.9	67.8	213	239	8	112	.6	1.1	95.7	.49	1.2
MAY
04...	28.6	4.0	52.0	186	227	--	89.1	.3	5.4	68.3	.55	1.3
JUN
09...	26.0	3.2	31.3	177	216	--	58.7	.3	6.1	57.4	.50	1.3
28...	22.3	3.6	18.5	164	200	--	32.3	.3	9.3	39.0	.60	1.4
AUG
11...	25.9	4.1	46.9	185	226	--	73.1	.4	3.2	72.6	.54	1.3
SEP
14...	27.1	5.2	56.0	188	229	--	86.7	.5	5.8	76.5	.45	.96

	NITRO-	NITRO-	NITRO-		PHOS-			CARBON,	SOLIDS,
	GEN,	GEN,	GEN,	PHOS-	PHORUS		CARBON,	ORGANIC	RESIDUE		MANGA-
	AMMONIA	NO₂+NO₃	NITRITE	PHORUS	ORTHO,	PHOS-	ORGANIC	PARTIC-	AT 180	IRON,	NESE,
	DIS-	DIS-	DIS-	DIS-	DIS-	PHORUS	DIS-	ULATE	DEG. C	DIS-	DIS-
	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	TOTAL	SOLVED	TOTAL	DIS-	SOLVED	SOLVED
DATE	(MG/L	(MG/L	(MG/L	(MG/L	(MG/L	(MG/L	(MG/L	(MG/L	SOLVED	(UG/L	(UG/L
	AS N)	AS N)	AS N)	AS P)	AS P)	AS P)	AS C)	AS C)	(MG/L)	AS FE)	AS MN)
	(00608)	(00631)	(00613)	(00666)	(00671)	(00665)	(00681)	(00689)	(70300)	(01046)	(01056)
OCT 1999
12...	.066	3.02	.032	.435	.431	.670	4.8	2.0	454	<10	E2
NOV
16...	<.020	2.15	.015	.283	.240	.393	4.7	2.6	493	<10	E2
DEC
13...	.063	3.54	.033	.667	.605	.968	5.1	2.6	506	<10	<2
JAN 2000
12...	.111	2.98	.041	.339	.308	.504	4.4	1.7	488	<10	4
FEB
08...	.090	4.46	.078	.487	.431	.662	5.0	2.0	602	E10	19
MAR
15...	--	--	--	--	--	.377	4.7	2.1	652	<10	3
APR
11...	.029	3.13	.038	.254	.211	.430	5.2	1.5	555	<10	<2
MAY
04...	.035	5.86	.047	.175	.151	.482	5.3	>5.0	493	<10	<2
JUN
09...	<.020	7.27	.035	.225	.189	.548	5.1	5.2	415	<10	<2
28...	<.020	5.79	.062	.195	.171	.488	5.2	.9	316	<10	E1
AUG
11...	.033	2.40	.065	.315	.265	.555	5.8	4.3	435	<10	E1
SEP
14...	<.020	1.59	.054	.333	.317	.556	5.1	1.4	455	<10	<2

				2,6-DI-	3HYDRXY		ACIFL-		ALDI-	ALDICA-	ALDI-
			2,4-DB	ETHYL	CARBO-	ACETO-	UORFEN	ALA-	CARB	RB SUL-	CARB,
			WATER,	ANILINE	FURAN	CHLOR,	WATER,	CHLOR,	SULFONE	FOXIDE,	WATER,
	2,4,5-T	2,4-D,	FLTRD,	WAT FLT	WAT,FLT	WATER	FLTRD,	WATER,	WAT,FLT	WAT,FLT	FLTRD,
	DIS-	DIS-	GF 0.7U	0.7 U	GF 0.7U	FLTRD	GF 0.7U	DISS,	GF 0.7U	GF 0.7U	GF 0.7U
DATE	SOLVED	SOLVED	REC	GF, REC	REC	REC	REC	REC,	REC	REC	REC
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(39742)	(39732)	(38746)	(82660)	(49308)	(49260)	(49315)	(46342)	(49313)	(49314)	(49312)
OCT 1999
12...	<.04	<.11	<.10	<.003	<.11	.044	<.09	<.002	<.10	<.02	<.23
NOV
16...	<.04	<.29	<.10	<.003	<.30	<.002	<.09	<.002	<.10	<.02	<1.00
DEC
13...	<.04	<.59	<.10	<.003	<1.71	.141	<.09	<.002	<.10	<.18	<.21
JAN 2000
12...	<.04	<.11	<.22	<.003	<.11	.059	<.09	.010	<.10	<.02	<.21
FEB
08...	<.04	<.58	<.10	<.003	<1.69	<.010	<.09	<.002	<.10	<.64	<.62
MAR
15...	<.04	<.40	<.12	<.003	<.12	.020	<.09	<.002	<.15	<.31	<.21
APR
11...	<.14	<.22	<.19	<.003	<.11	.060	<.09	.014	<.10	<.11	<.21
MAY
04...	<.04	<.11	<.10	<.003	<.11	.282	<.09	.015	<.10	<.16	<.67
JUN
09...	<.04	<.21	<.10	<.003	<.32	.475	<.09	.017	<.10	<.02	<.21
28...	<.04	<.11	<.10	<.003	<.32	.136	E.07	.015	<.10	<.40	<.21
AUG
11...	<.04	<.22	<.10	<.003	<.16	.025	<.09	<.002	<.10	<.15	<.45
SEP
14...	<.04	<.11	<.22	<.003	<.51	.020	<.09	<.002	<.61	<.39	<.21

			BEN-	BENTA-		BRO-		CAR-	CAR-	CARBO-	CARBO-
		ATRA-	FLUR-	ZON,	BRO-	MOXYNIL	BUTYL-	BARYL,	BARYL	FURAN,	FURAN
	ALPHA	ZINE,	ALIN	WATER,	MACIL,	WATER,	ATE,	WATER,	WATER	WATER,	WATER
	BHC	WATER,	WAT FLD	FLTRD,	WATER,	FLTRD,	WATER,	FLTRD,	FLTRD	FLTRD,	FLTRD
	DIS-	DISS,	0.7 U	GF 0.7U	DISS,	GF 0.7U	DISS,	GF 0.7U	0.7 U	GF 0.7U	0.7 U
DATE	SOLVED	REC	GF, REC	REC	REC	REC	REC	REC	GF, REC	REC	GF, REC
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(34253)	(39632)	(82673)	(38711)	(04029)	(49311)	(04028)	(49310)	(82680)	(49309)	(82674)
OCT 1999
12...	<.002	.305	<.002	<.04	<.28	<.04	<.002	<.07	<.003	<.29	<.003
NOV
16...	<.002	.223	<.002	<.04	<.33	<.04	<.002	<.07	<.003	<.68	<.003
DEC
13...	<.002	.630	<.002	<.04	<.06	<.13	<.002	<.07	<.003	<.53	<.003
JAN 2000
12...	<.002	.518	<.002	<.04	<.11	<.04	<.002	<.07	<.003	<.29	<.003
FEB
08...	<.002	.379	<.002	<.04	<.14	<.04	<.002	<.07	<.003	<.91	<.003
MAR
15...	<.002	.162	<.002	<.04	<.15	<.04	<.002	<.07	<.003	<.29	<.003
APR
11...	<.002	.476	<.002	<.12	<.88	<.04	<.002	<.07	<.003	<.29	<.003
MAY
04...	<.002	1.38	<.002	<.09	<.21	<.04	<.010	<.07	<.003	<.29	<.003
JUN
09...	<.002	3.05	<.002	.40	<1.00	<.04	<.002	<.07	<.003	<.29	E.019
28...	<.002	1.62	<.002	.17	<.67	<.04	<.010	<.07	E.005	<.29	<.010
AUG
11...	<.002	.256	<.002	<.04	<.27	<.04	<.002	<.07	<.003	<.29	<.003
SEP
14...	<.002	.264	<.002	<.04	<.61	<.04	<.002	<.07	<.003	<1.32	<.003

	CHLORO-		CLOPYR-		DACTHAL		DEETHYL			DICHLO-	DICHLOR
	THALO-		ALID,	CYANA-	MONO-	DCPA	ATRA-		DICAMBA	BENIL,	PROP,
	NIL,	CHLOR-	WATER,	ZINE,	ACID,	WATER	ZINE,	DI-	WATER,	WATER,	WATER,
	WAT,FLT	PYRIFOS	FLTRD,	WATER,	WAT,FLT	FLTRD	WATER,	AZINON,	FLTRD,	FLTRD,	FLTRD,
	GF 0.7U	DIS-	GF 0.7U	DISS,	GF 0.7U	0.7 U	DISS,	DIS-	GF 0.7U	GF 0.7U	GF 0.7U
DATE	REC	SOLVED	REC	REC	REC	GF, REC	REC	SOLVED	REC	REC	REC
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(49306)	(38933)	(49305)	(04041)	(49304)	(82682)	(04040)	(39572)	(38442)	(49303)	(49302)
OCT 1999
12...	<.48	<.004	<.23	<.010	<.04	<.002	E.028	.021	<.04	<.07	<.03
NOV
16...	<.48	<.004	<.23	<.004	<.04	<.002	E.026	.024	<.04	<.07	<.03
DEC
13...	<.48	<.004	<.23	.010	<.04	<.002	E.042	.029	<.04	<.07	<.03
JAN 2000
12...	<.48	<.004	<.23	.009	<.04	<.002	E.018	.028	<.04	<.07	<.03
FEB
08...	<.48	<.004	<.23	.011	<.04	<.002	E.030	.036	<.04	<.07	<.03
MAR
15...	<.48	<.004	<.23	<.010	<.04	<.002	E.036	.035	<.04	<.07	<.03
APR
11...	<.48	<.004	<.23	.010	<.11	<.002	E.044	.013	<.13	<.07	<.03
MAY
04...	<.48	<.004	<.23	.015	<.04	<.002	E.092	.038	<.04	<.07	<.03
JUN
09...	<.48	<.004	<.23	.039	<.04	<.002	E.31	.022	.12	<.07	<.03
28...	<.48	<.004	<.23	.023	<.04	<.002	E.41	.011	<.04	<.07	<.03
AUG
11...	<.48	<.004	<.23	.009	<.04	<.002	E.065	.015	<.04	<.07	<.03
SEP
14...	<.48	<.004	<.23	.008	<.04	<.002	E.043	.014	<.10	<.07	<.03

			DISUL-				ETHAL-	ETHO-	FEN-	FLUO-
		DINOSEB	FOTON	DIURON,		EPTC	FLUR-	PROP	URON,	METURON
	DI-	WATER,	WATER	WATER,	DNOC	WATER	ALIN	WATER	WATER,	WATER,	FONOFOS
	ELDRIN	FLTRD,	FLTRD	FLTRD,	WAT,FLT	FLTRD	WAT FLT	FLTRD	FLTRD,	FLTRD,	WATER
	DIS-	GF 0.7U	0.7 U	GF 0.7U	GF 0.7U	0.7 U	0.7 U	0.7 U	GF 0.7U	GF 0.7U	DISS
DATE	SOLVED	REC	GF, REC	REC	REC	GF, REC	GF, REC	GF, REC	REC	REC	REC
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(39381)	(49301)	(82677)	(49300)	(49299)	(82668)	(82663)	(82672)	(49297)	(38811)	(04095)
OCT 1999
12...	<.001	<.06	<.017	.09	<.42	<.002	<.004	<.003	<.07	<.06	<.003
NOV
16...	<.001	<.06	<.017	<.06	<.42	<.002	<.004	<.003	<.07	<.06	<.003
DEC
13...	<.001	<.06	<.017	<.06	<.42	<.002	<.004	<.003	<.95	<.19	<.003
JAN 2000
12...	<.001	<.06	<.017	<.06	<.42	<.002	<.004	<.003	<.07	<.06	<.003
FEB
08...	<.001	<.06	<.017	<.25	<.42	<.002	<.004	<.003	<.07	<.06	<.003
MAR
15...	<.001	<.06	<.017	<.06	<.42	<.002	<.004	<.003	<.07	<.06	<.003
APR
11...	<.001	<.06	<.017	<.06	<.42	<.002	<.004	<.003	<.07	<.06	<.003
MAY
04...	<.001	<.06	<.017	.23	<.42	<.002	<.004	<.003	<.07	<.06	<.003
JUN
09...	<.001	<.06	<.017	.16	<.42	<.002	<.004	<.003	<.07	<.06	<.003
28...	<.001	<.06	<.017	.06	<.42	<.002	<.004	<.003	<.07	<.06	<.003
AUG
11...	<.001	<.06	<.017	E.05	<.42	<.002	<.004	<.003	<.13	<.06	<.003
SEP
14...	<.001	<.06	<.017	.12	<.42	<.002	<.004	<.003	<.17	<.06	<.003

			LIN-				METHIO-	METH-	METHYL	METHYL
		LINURON	URON		MCPA,	MCPB,	CARB,	OMYL,	AZIN-	PARA-
		WATER,	WATER	MALA-	WATER,	WATER,	WATER,	WATER,	PHOS	THION	METO-
	LINDANE	FLTRD,	FLTRD	THION,	FLTRD,	FLTRD,	FLTRD,	FLTRD,	WAT FLT	WAT FLT	LACHLOR
	DIS-	GF 0.7U	0.7 U	DIS-	GF 0.7U	GF 0.7U	GF 0.7U	GF 0.7U	0.7 U	0.7 U	WATER
DATE	SOLVED	REC	GF, REC	SOLVED	REC	REC	REC	REC	GF, REC	GF, REC	DISSOLV
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(39341)	(38478)	(82666)	(39532)	(38482)	(38487)	(38501)	(49296)	(82686)	(82667)	(39415)
OCT 1999
12...	<.004	<.09	<.002	<.005	<.17	<.13	<.03	<2.92	<.001	<.006	.087
NOV
16...	<.004	<.09	<.002	<.005	<.17	<.31	<.03	<2.67	<.001	<.006	.049
DEC
13...	<.004	<.09	<.002	<.005	<.17	<.20	<.42	<.87	<.001	<.006	.235
JAN 2000
12...	<.004	<.09	<.002	<.005	<.17	<.13	<.12	<.02	<.001	<.006	.289
FEB
08...	<.004	<.09	<.002	<.005	<.17	<.24	<.50	<.78	<.001	<.006	.200
MAR
15...	<.004	<.09	<.002	<.005	<.17	<.21	<.03	<.02	<.001	<.006	.066
APR
11...	<.004	<.09	<.002	<.005	<.17	<.13	<.03	<.14	<.001	<.006	.200
MAY
04...	<.004	<.09	<.002	<.005	<.17	<.13	<.03	<.90	<.001	<.006	.472
JUN
09...	<.004	<.09	<.002	<.005	<.17	<.13	<.03	<.72	<.001	<.006	.572
28...	<.004	<.09	<.002	<.005	<.17	<.13	<.03	<.71	<.001	<.006	.392
AUG
11...	<.004	<.09	<.002	<.005	<.17	<.13	<.12	<1.50	<.001	<.006	.051
SEP
14...	<.004	<.09	<.002	<.005	<.17	<.36	<.39	<.31	<.001	<.006	.020

		MOL-	NAPROP-	NEB-	NORFLUR	ORY-				PEB-	PENDI-
	METRI-	INATE	AMIDE	URON,	AZON,	ZALIN,	OXAMYL,			ULATE	METH-
	BUZIN	WATER	WATER	WATER,	WATER,	WATER,	WATER,		PARA-	WATER	ALIN
	SENCOR	FLTRD	FLTRD	FLTRD,	FLTRD,	FLTRD,	FLTRD,	P,P'	THION,	FILTRD	WAT FLT
	WATER	0.7 U	0.7 U	GF 0.7U	GF 0.7U	GF 0.7U	GF 0.7U	DDE	DIS-	0.7 U	0.7 U
DATE	DISSOLV	GF, REC	GF, REC	REC	REC	REC	REC	DISSOLV	SOLVED	GF, REC	GF, REC
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(82630)	(82671)	(82684)	(49294)	(49293)	(49292)	(38866)	(34653)	(39542)	(82669)	(82683)
OCT 1999
12...	<.004	<.004	<.003	<.11	<.04	<.31	<.02	<.006	<.004	<.004	<.004
NOV
16...	<.004	<.004	<.003	<.07	<.04	<.31	<.17	<.006	<.004	<.004	<.004
DEC
13...	<.004	<.004	<.003	<.07	<.04	<.31	<.02	<.006	<.004	<.004	<.004
JAN 2000
12...	<.004	<.004	<.003	<.07	<.04	<4.75	<.02	<.006	<.004	<.004	<.004
FEB
08...	<.004	<.004	<.003	<.07	<.04	<.31	<.02	<.006	<.004	<.004	<.004
MAR
15...	<.004	<.004	<.003	<.07	<.04	<.31	<.02	E.003	<.004	<.004	<.004
APR
11...	<.004	<.004	<.003	<.07	<.04	<.31	<.02	<.006	<.004	<.004	<.004
MAY
04...	<.020	<.004	<.003	<.07	<.04	<.31	<.02	<.006	<.004	<.004	<.004
JUN
09...	.024	<.004	<.003	<.07	<.04	<.31	<.02	<.006	<.004	<.004	<.004
28...	.010	<.004	<.003	<.07	<.04	<.31	<.11	<.006	<.004	<.004	<.004
AUG
11...	<.004	<.004	<.003	<.07	<.04	<.31	<.22	<.006	<.004	<.004	<.004
SEP
14...	<.004	<.004	<.003	<.07	<.04	<.38	<.02	<.006	<.004	<.004	<.004

	PER-		PIC-		PRON-		PRO-	PRO-	PRO-	PRO-
	METHRIN	PHORATE	LORAM,	PRO-	AMIDE	PROPA-	PANIL	PARGITE	PHAM,	POXUR,
	CIS	WATER	WATER,	METON,	WATER	CHLOR,	WATER	WATER	WATER,	WATER,
	WAT FLT	FLTRD	FLTRD,	WATER,	FLTRD	WATER,	FLTRD	FLTRD	FLTRD,	FLTRD,	SILVEX,
	0.7 U	0.7 U	GF 0.7U	DISS,	0.7 U	DISS,	0.7 U	0.7 U	GF 0.7U	GF 0.7U	DIS-
DATE	GF, REC	GF, REC	REC	REC	GF, REC	REC	GF, REC	GF, REC	REC	REC	SOLVED
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(82687)	(82664)	(49291)	(04037)	(82676)	(04024)	(82679)	(82685)	(49236)	(38538)	(39762)
OCT 1999
12...	<.005	<.002	<.05	E.017	<.003	<.007	<.004	<.013	<.04	<.08	<.06
NOV
16...	<.005	<.002	<.05	.018	<.003	<.007	<.004	<.013	<.04	<.08	<.11
DEC
13...	<.005	<.002	<.05	E.014	<.003	<.007	<.004	<.013	<.04	<.08	<.06
JAN 2000
12...	<.005	<.002	<.05	E.015	<.003	<.007	<.004	<.013	<.04	<.08	<.06
FEB
08...	<.005	<.002	<.05	E.015	<.003	<.007	<.004	<.013	<.04	<.08	<.06
MAR
15...	<.005	<.002	<.05	E.009	<.003	<.007	<.004	<.013	<.69	<.08	<.06
APR
11...	<.005	<.002	<.05	E.012	<.003	<.007	<.004	<.013	<.16	<.08	<.06
MAY
04...	<.005	<.002	<.05	.018	<.003	<.007	<.004	<.013	<4.20	<.08	<.06
JUN
09...	<.005	<.002	<.14	.023	<.003	<.007	<.004	<.013	<10.0	<.08	<.06
28...	<.005	<.002	<.14	E.018	<.003	<.007	<.004	<.013	<4.50	<.94	<.06
AUG
11...	<.005	<.002	<.05	.025	<.003	<.007	<.004	<.013	<.04	<.08	<.06
SEP
14...	<.005	<.002	<.15	.023	<.003	<.007	<.004	<.013	<1.25	<.61	<.06

		TEBU-	TER-	TER-	TER-	THIO-	TRIAL-	TRI-	TRI-		SED.
	SI-	THIURON	BACIL	BUFOS	BUTHYL-	BENCARB	LATE	CLOPYR,	FLUR-		SUSP.
	MAZINE,	WATER	WATER	WATER	AZINE,	WATER	WATER	WATER,	ALIN	SEDI-	SIEVE
	WATER,	FLTRD	FLTRD	FLTRD	WATER,	FLTRD	FLTRD	FLTRD,	WAT FLT	MENT,	DIAM.
	DISS,	0.7 U	0.7 U	0.7 U	DISS,	0.7 U	0.7 U	GF 0.7U	0.7 U	SUS-	% FINER
DATE	REC	GF, REC	GF, REC	GF, REC	REC	GF, REC	GF, REC	REC	GF, REC	PENDED	THAN
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(MG/L)	.062 MM
	(04035)	(82670)	(82665)	(82675)	(04022)	(82681)	(82678)	(49235)	(82661)	(80154)	(70331)
OCT 1999
12...	<.005	<.010	<.007	<.013	--	<.002	<.001	<.25	<.002	152	100
NOV
16...	.045	<.010	<.007	<.013	--	<.002	<.001	<.25	<.002	84	98
DEC
13...	.037	<.010	<.007	<.013	--	<.002	<.001	<.25	<.002	231	94
JAN 2000
12...	.018	<.010	<.007	<.013	--	<.002	<.001	<.25	<.002	127	97
FEB
08...	.011	<.010	<.007	<.013	--	<.002	<.001	<.25	<.002	160	98
MAR
15...	.010	<.010	<.007	<.013	--	<.002	.008	<.25	<.002	144	96
APR
11...	.009	<.010	<.007	<.013	--	<.002	.005	<.25	<.002	169	95
MAY
04...	.036	E.010	<.007	<.013	--	<.002	.007	<.25	<.002	265	96
JUN
09...	.030	.016	<.007	<.013	--	<.002	E.002	<.25	<.002	314	96
28...	.025	.013	<.007	<.013	--	<.002	<.001	<.25	E.003	304	96
AUG
11...	.010	.017	<.007	<.013	E.006	<.002	<.001	<.25	<.002	265	98
SEP
14...	.012	.024	<.007	<.013	E.014	<.002	<.001	<.51	<.002	203	95