05586100 DATA: Chemical and Microbiological Tables, 2001

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 1995-2001.

SURFACE-WATER QUALITY

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

SEDIMENT: Water years 1980 to current.

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: Water years 1997-98.

FISH: Water year 1998.

HABITAT: Water years 1997 and 1998.

GAGE.-- U.S. Army Corps of Engineer's water-stage recorder, satellite telemeter and rain gage, crest-stage gage, and water-quality monitor. 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-		PH
		AGENCY	AGENCY		CHARGE,		WATER	SPE-				MAGNE-	POTAS-
		ANA-	COL-		INST.		WHOLE	CIFIC			CALCIUM	SIUM,	SIUM,
		LYZING	LECTING		CUBIC	OXYGEN,	FIELD	CON-	TEMPER-	TEMPER-	DIS-	DIS-	DIS-
		SAMPLE	SAMPLE	GAGE	FEET	DIS-	(STAND-	DUCT-	ATURE	ATURE	SOLVED	SOLVED	SOLVED
DATE	TIME	(CODE	(CODE	HEIGHT	PER	SOLVED	ARD	ANCE	AIR	WATER	(MG/L	(MG/L	(MG/L
		NUMBER)	NUMBER)	(FEET)	SECOND	(MG/L)	UNITS)	(US/CM)	(DEG C)	(DEG C)	AS CA)	AS MG)	AS K)
		(00028)	(00027)	(00065)	(00061)	(00300)	(00400)	(00095)	(00020)	(00010)	(00915)	(00925)	(00935)
OCT 2000
10...	1430	80020	81700	3.54	14300	9.4	7.9	618	20.0	13.5	51.0	21.2	6.21
NOV 2000
15...	1430	80020	81700	5.68	20600	10.9	8.2	801	9.5	7.0	70.2	30.6	5.44
DEC 2000
11...	1450	80020	81700	2.42	10800	13.8	8.4	812	-9.0	1.7	71.5	31.3	4.52
JAN 2001
17...	1410	80020	81700	6.39	--	12.8	7.7	1170	-3.0	0	74.7	32.8	5.08
FEB 2001
13...	1500	80020	81700	14.01	53900	12.4	7.5	572	5.5	1.8	47.8	19.4	4.53
MAR 2001
20...	1400	80020	81700	13.71	48000	10.9	7.7	679	14.5	6.3	65.8	27.3	3.02
APR 2001
25...	1150	80020	81700	10.96	30400	8.3	7.9	759	21.0	17.8	73.3	30.1	3.36
MAY 2001
16...	1520	80020	81700	11.62	--	8.4	7.9	778	30.0	22.0	69.6	30.4	3.45
JUN 2001
13...	1520	80020	81700	15.52	--	5.1	7.7	542	31.0	24.1	54.5	23.2	4.06
JUL 2001
19...	1430	80020	81700	2.85	8800	5.6	7.8	720	25.5	27.8	60.9	28.9	3.87
AUG 2001
22...	1330	80020	81700	1.91	7290	7.6	7.9	778	32.0	26.9	59.1	26.6	5.24

		ALKA-	BICAR-	CAR-					SOLIDS,	NITRO-	NITRO-	NITRO-	NITRO-
		LINITY	BONATE	BONATE	CHLO-	FLUO-	SILICA,		RESIDUE	GEN,	GEN,AM-	GEN,AM-	GEN,
	SODIUM,	WAT DIS	WATER	WATER	RIDE,	RIDE,	DIS-	SULFATE	AT 180	AMMONIA	MONIA +	MONIA +	NO₂+NO₃
	DIS-	TOT IT	DIS IT	DIS IT	DIS-	DIS-	SOLVED	DIS-	DEG. C	DIS-	ORGANIC	ORGANIC	DIS-
	SOLVED	FIELD	FIELD	FIELD	SOLVED	SOLVED	(MG/L	SOLVED	DIS-	SOLVED	DIS.	TOTAL	SOLVED
DATE	(MG/L	MG/L AS	MG/L AS	MG/L AS	(MG/L	(MG/L	AS	(MG/L	SOLVED	(MG/L	(MG/L	(MG/L	(MG/L
	AS NA)	CACO₃	HCO₃	CO₃	AS CL)	AS F)	SIO₂)	AS SO₄)	(MG/L)	AS N)	AS N)	AS N)	AS N)
	(00930)	(39086)	(00453)	(00452)	(00940)	(00950)	(00955)	(00945)	(70300)	(00608)	(00623)	(00625)	(00631)
OCT 2000
10...	47.3	156	190	--	70.0	.4	6.2	59.6	380	.050	.56	.89	2.54
NOV 2000
15...	55.8	194	237	--	82.6	.5	5.0	80.5	476	.100	.56	1.2	3.55
DEC 2000
11...	45.6	224	273	--	74.3	.4	6.4	79.8	492	<.041	<.10	1.1	4.22
JAN 2001
17...	116	235	287	--	183	.4	6.9	87.5	700	--	--	--	--
FEB 2001
13...	30.2	140	170	--	57.6	.2	6.8	37.7	327	.333	.84	1.8	5.87
MAR 2001
20...	30.2	189	231	--	59.6	.3	7.3	57.5	411	.126	.59	1.0	6.97
APR 2001
25...	37.5	203	247	--	69.5	.3	4.3	61.7	463	<.041	.44	1.1	7.10
MAY 2001
16...	42.0	218	259	4	74.4	.3	2.6	65.9	460	<.040	.40	1.3	4.43
JUN 2001
13...	19.3	153	187	--	37.8	.3	7.4	40.9	324	<.040	.54	1.2	6.81
JUL 2001
19...	40.7	196	240	--	65.7	.4	3.0	64.1	411	.140	.59	.82	2.40
AUG 2001
22...	58.2	203	247	--	89.1	.5	6.2	69.7	457	<.040	.46	.93	1.28

	NITRO-		PHOS-			CARBON,				2,4-D			2,6-DI-
	GEN,	PHOS-	PHORUS		CARBON,	ORGANIC		MANGA-		METHYL		2,4-DB	ETHYL
	NITRITE	PHORUS	ORTHO,	PHOS-	ORGANIC	PARTIC-	IRON,	NESE,		ESTER,		WATER,	ANILINE
	DIS-	DIS-	DIS-	PHORUS	DIS-	ULATE	DIS-	DIS-	2,4,5-T	WATER	2,4-D,	FLTRD,	WAT FLT
	SOLVED	SOLVED	SOLVED	TOTAL	SOLVED	TOTAL	SOLVED	SOLVED	DIS-	FLTRD	DIS-	GF 0.7U	0.7 U
DATE	(MG/L	(MG/L	(MG/L	(MG/L	(MG/L	(MG/L	(UG/L	(UG/L	SOLVED	REC	SOLVED	REC	GF, REC
	AS N)	AS P)	AS P)	AS P)	AS C)	AS C)	AS FE)	AS MN)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
	(00613)	(00666)	(00671)	(00665)	(00681)	(00689)	(01046)	(01056)	(39742)	(50470)	(39732)	(38746)	(82660)
OCT 2000
10...	.017	.359	.331	.532	5.7	2.8	M	<3.2	<.04	--	<.11	<.10	<.002
NOV 2000
15...	.018	.471	.427	.748	4.5	5.1	<10	<3.2	<.12	--	<.11	<.13	--
DEC 2000
11...	.027	<.060	.278	.483	19	--	<10	9.1	<.04	--	.11	<.10	<.002
JAN 2001
17...	--	--	--	--	4.2	1.0	<10	31.3	<.04	--	<.11	<.17	<.002
FEB 2001
13...	.041	.204	.185	.638	--	--	10	27.3	<.04	--	<.11	<.10	<.002
MAR 2001
20...	.043	.151	.136	.318	4.4	2.2	<10	E2.6	<.04	--	<.11	<.10	<.002
APR 2001
25...	.051	.165	.152	.407	3.8	>5.0	M	<3.2	--	<.086	.09	<.05	<.002
MAY 2001
16...	.072	.179	.168	.312	4.0	3.4	<10	<3.0	--	<.009	.17	<.02	<.002
JUN 2001
13...	.079	.154	.123	.429	4.3	4.2	<10	<3.0	--	<.009	.05	<.02	<.002
JUL 2001
19...	.026	.252	.241	.369	6.1	2.7	<10	<3.0	--	<.009	.08	<.02	<.002
AUG 2001
22...	.137	.362	E.321	.456	5.1	3.2	<10	<3.0	--	<.009	.05	<.02	<.002

3HYDRXY

3-KETO

ACIFL-

ALDI-

ALDICA-

ALDI-

BEN-

CARBO-

ACETO-

UORFEN

ALA-

CARB

RB SUL-

CARB,

ATRA-

BENDIO-

FLUR-

FURAN

CHLOR,

WATER,

CHLOR,

SULFONE

FOXIDE,

WATER,

ALPHA

ZINE,

CARB,

ALIN

BENOMYL

WAT,FLT

WATER

FLTRD,

WATER,

WAT,FLT

FLTRD,

BHC

WATER,

WATER

WAT FLD

WATER

GF 0.7U

FLTRD

GF 0.7U

DISS,

GF 0.7U

DIS-

DISS,

FLTRD

0.7 U

FLTRD

DATE

REC

REC,

REC

SOLVED

REC

GF, REC

REC

(UG/L)

(49308)

(50295)

(49260)

(49315)

(46342)

(49313)

(49314)

(49312)

(34253)

(39632)

(50299)

(82673)

(50300)

OCT 2000

10...

<.23

<.004

<.05

<.002

<.47

<.16

<1.82

<.005

.096

<.010

NOV 2000

15...

<.01

<.05

<.26

<.21

DEC 2000

11...

<.14

.007

<.05

<.002

<.20

<.36

<1.34

<.005

.107

<.010

JAN 2001

17...

<.21

.067

<.05

<.002

<.20

<.27

<1.53

<.005

.359

<.010

FEB 2001

13...

<.24

.029

<.12

<.002

<.20

<.02

<.40

<.005

.122

<.010

MAR 2001

20...

<.56

.014

<.05

.004

<.20

<.17

<.21

<.005

.138

<.010

APR 2001

25...

<.06

<.072

.181

<.06

.018

<.16

<.03

<.08

<.005

.787

<.061

<.010

E.011

MAY 2001

16...

<.01

<1.50

.763

<.01

.012

<.02

<.01

<.04

<.005

4.24

<.025

<.010

<.004

JUN 2001

13...

<.01

<1.50

.453

<.01

.022

<.02

<.01

<.04

<.005

E3.09

<.025

<.010

<.004

JUL 2001

19...

<.01

<1.50

.102

<.01

<.002

<.02

<.01

<.04

<.005

.652

<.025

<.010

<.004

AUG 2001

22...

<.01

<1.50

.022

<.01

<.002

<.02

<.01

<.04

<.005

.274

<.025

<.010

<.004

BEN-

BENTA-

BRO-

CAR-

CARBO-

CHLOR-

CHLORO-

SUL-

ZON,

BRO-

MOXYNIL

BUTYL-

CAF-

BARYL,

BARYL

FURAN,

FURAN

AMBEN,

CHLORI-

THALO-

FURON

WATER,

MACIL,

WATER,

ATE,

FEINE,

WATER,

WATER

WATER,

WATER

METHYL

MURON,

NIL,

METHYL

FLTRD,

WATER,

FLTRD,

WATER,

WATER

FLTRD,

FLTRD

FLTRD,

FLTRD

ESTER

WATER

WAT,FLT

WAT FLT

GF 0.7U

DISS,

GF 0.7U

DISS,

FLTRD

GF 0.7U

0.7 U

GF 0.7U

0.7 U

WATER

FLTRD

GF 0.7U

DATE

REC

GF, REC

REC

GF, REC

FLTRD

REC

(UG/L)

(61693)

(38711)

(04029)

(49311)

(04028)

(50305)

(49310)

(82680)

(49309)

(82674)

(61188)

(50306)

(49306)

OCT 2000

10...

<.04

<1.17

<.07

<.002

<.02

<.041

<.45

<.020

<.14

<.28

NOV 2000

15...

<.04

<.74

<.07

<.02

<.54

<.14

<.28

DEC 2000

11...

<.04

<1.14

<.07

<.002

<.02

<.041

<.40

<.020

<.14

<.13

JAN 2001

17...

<.04

<.33

<.07

<.002

<.02

E.006

<.94

<.020

<.14

<.13

FEB 2001

13...

<.04

<.14

<.07

<.002

<.02

<.041

<.29

<.020

<.14

<.13

MAR 2001

20...

<.04

<.35

<.07

<.002

<.02

<.041

<.29

<.020

<.14

<.13

APR 2001

25...

<.0482

E.04

E.03

<.002

E.065

<.06

<.041

<.06

<.020

<.11

<.037

<.05

MAY 2001

16...

<.0158

E.05

E.02

<.02

<.002

<.010

<.03

<.041

<.01

<.020

<.02

E.023

<.04

JUN 2001

13...

<.0158

E.06

E.04

<.02

<.002

.020

<.03

<.041

<.020

<.02

<.010

<.04

JUL 2001

19...

<.0158

E.07

E.01

<.02

<.002

<.010

<.03

<.041

<.01

<.020

<.02

<.010

<.04

AUG 2001

22...

<.0158

E.02

E.09

<.02

<.002

<.010

<.03

<.041

<.01

<.020

<.02

<.010

<.04

CLOPYR-

DACTHAL

DEETHYL

DEISO-

DICHLO-

DICHLOR

ALID,

CYANA-

SI-

MONO-

DCPA

ATRA-

DEISO-

PROPYL

DICAMBA

BENIL,

PROP,

CHLOR-

WATER,

ZINE,

CLOATE,

ACID,

WATER

ZINE,

PROPYL

ATRAZIN

DI-

WATER,

PYRIFOS

FLTRD,

WATER,

WAT,FLT

FLTRD

WATER,

ATRAZIN

WATER,

AZINON,

FLTRD,

DIS-

GF 0.7U

DISS,

GF 0.7U

0.7 U

DISS,

DIS-

GF 0.7U

DATE

SOLVED

REC

GF, REC

REC

SOLVED

REC

(UG/L)

(38933)

(49305)

(04041)

(04031)

(49304)

(82682)

(04040)

(04039)

(04038)

(39572)

(38442)

(49303)

(49302)

OCT 2000

10...

<.005

<.42

<.018

<.07

<.003

E.036

.024

<.04

<.05

NOV 2000

15...

<.42

<.24

<.04

<.05

<.10

DEC 2000

11...

<.005

<.42

<.018

<.07

<.003

E.040

.010

<.04

<.05

JAN 2001

17...

<.005

<.42

<.018

<.07

<.003

E.029

.017

<.04

<.23

<.05

FEB 2001

13...

<.005

<.42

E.016

<.07

<.003

E.046

E.004

<.04

<.05

MAR 2001

20...

<.005

<.42

E.008

<.07

<.003

E.041

E.002

<.04

<.05

APR 2001

25...

<.005

<.04

E.008

<.05

<.07

<.003

E.056

E.17

<.07

.009

E.02

<.05

MAY 2001

16...

<.005

.03

<.018

<.01

<.003

E.134

E.06

.007

.21

<.01

JUN 2001

13...

E.003

<.01

E.012

<.01

<.003

E.398

<.01

E.07

.009

.13

<.01

JUL 2001

19...

<.005

<.01

<.018

<.01

<.003

E.025

<.01

E.03

.008

.04

<.01

AUG 2001

22...

<.005

<.01

<.018

<.01

<.003

E.027

<.01

<.04

.011

.08

<.01

DISUL-

ETHAL-

ETHO-

FEN-

FLUO-

DINOSEB

DIPHEN-

FOTON

DIURON,

EPTC

FLUR-

PROP

URON,

FLUMET-

METURON

DI-

WATER,

AMID,

WATER

WATER,

DNOC

WATER

ALIN

WATER

WATER,

SULAM

WATER,

FONOFOS

ELDRIN

FLTRD,

WATER,

FLTRD

FLTRD,

WAT,FLT

FLTRD

WAT FLT

FLTRD

FLTRD,

WATER

FLTRD,

WATER

DIS-

GF 0.7U

DISS,

0.7 U

GF 0.7U

0.7 U

GF 0.7U

FLTRD

GF 0.7U

DISS

DATE

SOLVED

REC

GF, REC

REC

GF, REC

REC

(UG/L)

(39381)

(49301)

(04033)

(82677)

(49300)

(49299)

(82668)

(82663)

(82672)

(49297)

(61694)

(38811)

(04095)

OCT 2000

10...

<.005

<.09

<.021

<.10

<.25

<.002

<.009

<.005

<.52

<.06

<.003

NOV 2000

15...

<.17

<.25

<.07

<.06

DEC 2000

11...

<.005

<.09

<.021

<.06

<.25

<.002

<.009

<.005

<.34

<.06

<.003

JAN 2001

17...

<.005

<.22

<.021

<.22

<.25

<.002

<.009

<.005

<.18

<.06

<.003

FEB 2001

13...

<.005

<.09

<.021

<.06

<.25

E.004

<.009

<.005

<.16

<.06

<.003

MAR 2001

20...

<.005

<.09

<.021

<.06

<.25

<.002

<.009

<.005

<.21

<.06

<.003

APR 2001

25...

<.005

<.04

<.06

<.021

.08

E.001

<.009

<.005

<.07

<.0866

<.06

<.003

MAY 2001

16...

<.005

<.01

<.03

<.021

.10

<.002

<.009

<.005

<.03

<.0110

<.03

<.003

JUN 2001

13...

<.005

<.01

<.0024

<.021

.05

<.002

<.009

<.005

<.03

E.0625

<.03

<.003

JUL 2001

19...

<.005

<.01

<.03

<.021

.06

<.002

<.009

<.005

<.0030

E.0219

<.03

<.003

AUG 2001

22...

<.005

<.01

<.03

<.021

.09

<.002

<.009

<.005

<.03

<.0110

<.03

<.003

HYDROXY

IMID-

LIN-

METHIO-

METH-

ATRA-

IMAZ-

IMAZE-

ACLOP-

LINURON

URON

MCPA,

MCPB,

METAL-

CARB,

OMYL

ZINE

AQUIN

THAPYR

RID

WATER,

WATER

MALA-

WATER,

AXYL

WATER,

OXIME

WATER

LINDANE

FLTRD,

FLTRD

THION,

FLTRD,

WATER

FLTRD,

WATER

FLTRD

DIS-

GF 0.7U

0.7 U

DIS-

GF 0.7U

FLTRD

GF 0.7U

FLTRD

DATE

REC

SOLVED

REC

GF, REC

SOLVED

REC

(UG/L)

(50355)

(50356)

(50407)

(61695)

(39341)

(38478)

(82666)

(39532)

(38482)

(38487)

(50359)

(38501)

(61696)

OCT 2000

10...

<.004

<.33

<.035

<.027

<.08

<.13

<.18

NOV 2000

15...

<.02

<.08

<.21

<.07

DEC 2000

11...

<.004

<.02

<.035

<.027

<.08

<.13

<.21

JAN 2001

17...

<.004

<.63

<.035

<.027

<.08

<.13

<.57

FEB 2001

13...

<.004

<.10

<.035

<.027

<.08

<.13

<.07

MAR 2001

20...

<.004

<.02

<.035

<.027

<.08

<.13

<.07

APR 2001

25...

E.451

<.103

E.014

<.1060

<.004

<.07

<.035

<.027

E.01

<.06

<.057

<.08

<.0102

MAY 2001

16...

E.418

<.016

<.017

<.0068

<.004

<.01

<.035

<.027

<.02

<.01

<.020

<.01

<.0110

JUN 2001

13...

<.008

<.016

<.017

<.0068

<.004

<.01

<.035

<.027

<.02

<.01

<.020

<.01

<.0110

JUL 2001

19...

E.285

<.016

<.017

<.0068

<.004

<.01

<.035

<.027

<.02

<.01

<.020

<.01

<.0110

AUG 2001

22...

E.307

<.016

<.017

<.0068

<.004

<.01

<.035

<.027

<.02

<.01

E.013

<.01

<.0110

METH-

METHYL

MET-

MOL-

NAPROP-

NEB-

NORFLUR

ORY-

OMYL,

AZIN-

PARA-

METRI-

SUL-

INATE

AMIDE

URON,

NICOSUL

AZON,

ZALIN,

OXAMYL

WATER,

PHOS

THION

METO-

BUZIN

FURON

WATER

WATER,

FURON

WATER,

OXIME

FLTRD,

WAT FLT

LACHLOR

SENCOR

METHYL

FLTRD

FLTRD,

WATER

FLTRD,

WATER

GF 0.7U

0.7 U

WATER

WAT FLT

0.7 U

GF 0.7U

FLTRD

GF 0.7U

FLTRD

DATE

REC

GF, REC

DISSOLV

REC

GF, REC

REC

(UG/L)

(49296)

(82686)

(82667)

(39415)

(82630)

(61697)

(82671)

(82684)

(49294)

(50364)

(49293)

(49292)

(50410)

OCT 2000

10...

<.12

<.050

<.006

.051

<.006

<.002

<.007

<.02

<.04

<.28

NOV 2000

15...

<.02

<.04

<.28

DEC 2000

11...

<.87

<.050

<.006

.037

<.006

<.002

<.007

<.02

<.04

<.49

JAN 2001

17...

<.96

<.050

<.006

.073

<.006

<.002

<.007

<.02

<.04

<.61

FEB 2001

13...

<.80

<.050

<.006

.369

<.006

<.002

<.007

<.02

<.04

<.73

MAR 2001

20...

<1.08

<.050

<.006

.186

<.006

<.002

<.007

<.02

<.04

<.95

APR 2001

25...

<.08

<.050

<.006

.391

E.006

E.2275

<.002

<.007

<.07

<.065

<.08

<.07

<.064

MAY 2001

16...

<.0044

<.050

<.006

.491

.013

<.0250

<.002

<.007

<.01

<.013

<.02

<.013

JUN 2001

13...

<.0044

<.050

<.006

.727

.017

<.0250

E.001

<.007

<.01

<.013

<.02

<.013

JUL 2001

19...

<.0044

<.050

<.006

.074

<.006

<.0250

<.002

<.007

<.01

<.013

<.02

<.013

AUG 2001

22...

<.0044

<.050

<.006

.030

<.006

<.0250

<.002

<.007

<.01

<.013

<.02

<.013

PEB-

PENDI-

PER-

PIC-

PRON-

PRO-

OXAMYL,

ULATE

METH-

METHRIN

PHORATE

LORAM,

PRO-

AMIDE

PROPA-

PANIL

PARGITE

WATER,

PARA-

WATER

ALIN

CIS

WATER

WATER,

METON,

WATER

CHLOR,

WATER

FLTRD,

P,P'

THION,

FILTRD

WAT FLT

FLTRD

FLTRD,

WATER,

FLTRD

WATER,

FLTRD

GF 0.7U

DDE

DIS-

0.7 U

GF 0.7U

DISS,

0.7 U

DISS,

0.7 U

DATE

REC

DISSOLV

SOLVED

GF, REC

REC

GF, REC

REC

GF, REC

(UG/L)

(38866)

(34653)

(39542)

(82669)

(82683)

(82687)

(82664)

(49291)

(04037)

(82676)

(04024)

(82679)

(82685)

OCT 2000

10...

<.86

<.003

<.007

<.002

<.010

<.006

<.011

<.20

.020

<.004

<.010

<.011

<.023

NOV 2000

15...

<.02

<.21

DEC 2000

11...

<.75

<.003

<.007

<.002

<.010

<.006

<.011

<.09

E.012

<.004

<.010

<.011

<.023

JAN 2001

17...

<.45

<.003

<.007

<.002

<.010

<.006

<.011

<.09

E.008

<.004

<.010

<.011

<.023

FEB 2001

13...

<.20

E.002

<.007

<.002

<.010

<.006

<.011

<.09

E.006

<.004

<.010

<.011

<.023

MAR 2001

20...

<.21

<.003

<.007

<.002

<.010

<.006

<.011

<.09

E.005

<.004

<.010

<.011

<.023

APR 2001

25...

<.02

<.003

<.007

<.002

<.010

<.006

<.011

<.07

E.006

<.004

<.010

<.011

<.023

MAY 2001

16...

<.01

<.003

<.007

<.002

<.010

<.006

<.011

<.02

.016

<.004

<.010

<.011

<.023

JUN 2001

13...

<.01

<.003

<.007

<.002

<.010

<.006

<.011

<.02

E.011

<.004

<.010

<.011

<.023

JUL 2001

19...

<.01

<.003

<.007

<.002

<.010

<.006

<.011

<.02

.024

<.004

<.010

<.011

<.023

AUG 2001

22...

<.01

<.003

<.007

<.002

<.010

<.006

<.011

<.02

.038

<.004

<.010

<.011

<.023

PRO-

PROP-

PRO-

SULFO-

TEBU-

TER-

THIO-

PHAM,

ICONA-

POXUR,

SI-

MET-

THIURON

TER-

BACIL

BUFOS

BUTHYL-

BENCARB

WATER,

ZOLE ,

WATER,

SIDURON

MAZINE,

RURON

WATER

BACIL,

WATER

AZINE,

WATER

FLTRD,

WATER

FLTRD,

WATER

SILVEX,

WATER,

METHYL

FLTRD

WATER,

FLTRD

WATER,

FLTRD

GF 0.7U

FLTRD

GF 0.7U

FLTRD

DIS-

DISS,

WTR FLT

0.7 U

DISS,

0.7 U

DISS,

0.7 U

DATE

REC

SOLVED

REC

GF, REC

REC

GF, REC

REC

GF, REC

(UG/L)

(49236)

(50471)

(38538)

(38548)

(39762)

(04035)

(50337)

(82670)

(04032)

(82665)

(82675)

(04022)

(82681)

OCT 2000

10...

<.68

<.03

.049

.021

<.034

<.017

<.005

NOV 2000

15...

<.72

<.12

<.11

DEC 2000

11...

<.51

<.91

<.03

.089

E.015

<.034

<.017

<.005

JAN 2001

17...

<1.52

<.93

<.03

E.010

<.016

<.034

<.017

<.005

FEB 2001

13...

<.60

<.75

<.13

.036

E.008

<.034

<.017

<.005

MAR 2001

20...

<.61

<.79

<.03

.022

E.005

<.034

<.017

<.005

APR 2001

25...

<.07

<.064

<.06

<.093

.042

E.007

<.10

<.034

<.017

<.005

MAY 2001

16...

<.01

<.021

<.01

E.003

.083

E.011

E.010

<.01

<.034

<.017

<.005

JUN 2001

13...

<.01

<.021

<.01

<.017

.058

<.009

E.011

<.01

<.034

<.017

E.004

<.005

JUL 2001

19...

<.01

<.004

<.01

<.017

.030

<.009

E.011

<.01

<.034

<.017

E.018

<.005

AUG 2001

22...

<.01

<.021

<.01

<.017

E.006

E.014

.026

<.01

<.034

<.017

<.005

	TRIAL-		TRI-	TRI-	UREA 3(	SED.
	LATE	TRI-	CLOPYR,	FLUR-	4-CHLOR	SUSP.
	WATER	BENURON	WATER,	ALIN	OPHENYL	SIEVE	SEDI-
	FLTRD	METHYL	FLTRD,	WAT FLT	METHYL	DIAM.	MENT,
	0.7 U	WATER	GF 0.7U	0.7 U	WAT FLT	% FINER	SUS-
DATE	GF, REC	FLTRD	REC	GF, REC	REC	THAN	PENDED
	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	.062 MM	(MG/L)
	(82678)	(61159)	(49235)	(82661)	(61692)	(70331)	(80154)
OCT 2000
10...	<.002	--	<.07	<.009	--	97	160
NOV 2000
15...	--	--	<1.32	--	--	98	228
DEC 2000
11...	.025	--	<.56	<.009	--	93	168
JAN 2001
17...	.034	--	<.14	<.009	--	72	127
FEB 2001
13...	E.002	--	<.41	E.002	--	95	315
MAR 2001
20...	E.002	--	<.29	<.009	--	95	165
APR 2001
25...	E.002	<.07	E.01	<.009	<.0915	94	243
MAY 2001
16...	.003	<.01	<.02	<.009	<.0242	98	135
JUN 2001
13...	<.002	<.01	<.02	<.009	<.0242	89	366
JUL 2001
19...	<.002	<.01	E.02	<.009	<.0242	100	126
AUG 2001
22...	<.002	<.01	<.02	<.009	<.0242	97	139

<	Less than
>	Greater than
E	Estimated value
M	Presence verified, not quantified