DATA: Miscellaneous Ground-Water Quality, 2002

Station list DATA: Miscellaneous Ground-Water Quality, 2002 DATA: Miscellaneous Ground-Water Quality, 2002

HERBICIDES IN SOURCE-WATER AQUIFERS TAPPED BY PUBLIC-SUPPLY WELLS IN ILLINOIS

During October 2001-September 2002, the U.S. Geological Survey (USGS), in cooperation with the Illinois Environmental Protection Agency (IEPA), conducted a study of herbicides and herbicide transformation products (also referred to as degradates or metabolites) in source-water aquifers used for public-water supply. One-hundred seventeen randomly selected public-supply wells distributed statewide were sampled. The selected wells represent the various unconsolidated (glacial, alluvial) and bedrock (carbonate, sandstone) aquifers of the State, as well as various aquifer depths, well depths, and near-well (within 2 miles) land uses. Interpretive results of the ground-water study are presented in Mills and McMillan (2004).

Water samples were collected using purge criteria based on stabilization of field-determined water-quality characteristics (specific conductance, pH, temperature and oxidation-reduction potential) and minimum well-casing volumes to ensure samples were representative of the ground-water quality. Field characteristics were measured by personnel from the Illinois Environmental Protection Agency. Water samples were collected before water treatment (chlorination and fluorodation, for example), and were filtered through a 0.7 micron baked glass-fiber filter using a stainless steel and Teflon filtering device. All samples were chilled immediately to 4 degrees Celsius for handling and shipment to the USGS Organic Geochemistry Research Laboratory in Lawrence, Kans. The laboratory received all samples within 1-3 days of sample collection. Using solid-phase extraction techniques, parent herbicides, the atrazine transformation products deethylatrazine and deisopropylatrazine, and the cyanazine transformation product cyanazine-amide were analyzed by gas chromatography/mass spectrometry (GC/MS) (Zimmerman and Thurman, 1999; Kish and others, 2000). Chloroacetanilide herbicide transformation products (ethanesulfonic (ESA),oxanilic acid (OA), and sulfynil acetic acid (SAA) compounds) were analyzed by high-performance liquid chromatography/mass spectrometry (LC/MS) (Zimmerman and others, 2000; Lee and others, 2001). Glyphosate was analyzed by liquid chromatography (Lee and others, 2002).

MISCELLANEOUS GROUND-WATER QUALITY
HERBICIDES IN SOURCE-WATER AQUIFERS TAPPED BY PUBLIC-SUPPLY WELLS IN ILLINOIS-1

[IEPA, Illinois Environmental Protection Agency; USGS, U.S. Geological Survey; FT, feet below land surface; US/CM, microsiemens per centimeter; DEG C, degrees Celsius; UG/L, micrograms per liter; ESA, ethanesulfonic acid; OA, oxanilic acid; SAA, sulfynil acetic acid; <, less than; --, not analyzed; geologic unit codes are listings in USGS National Water Information System (NWIS) data base; numbers listed under units in column headings are parameter codes for listings in U.S. Environmental Protection Agency STORET data base]

GEOLOGIC UNIT:
110QRNR, Quaternary; 350SLRN, Silurian; 360ODVC, Ordovician; 340DVSL, Silurian-Devonian; 367OVCB, Cambrian-Ordovician; 365ANCL, Ancell; 333VLMR, Valmeyeran; 320PSLV, Pennsylvanian; 362MQKT, Maquoketa; 355NIGR, Niagaran; 365GLPV, Galena-Platteville; 372IRGL, Ironton-Galesville; 330MSSP, Mississippian; 365STPR, St. Peter

								PH
							SPE-	WATER
						DEPTH	CIFIC	WHOLE
IEPA				GEO-		OF	CON-	FIELD	TEMPER-
WELL		USGS	USGS	LOGIC	SAMPLE	WELL,	DUCT-	(STAND-	ATURE
NUMBER		STATION NUMBER	STATION NAME	UNIT	DATE	TOTAL	ANCE	ARD	WATER
						(FT)	(US/CM)	UNITS)	(DEG C)
						(72008)	(00095)	(00400)	(00010)
47583		403143088054701	24N10E-20.8g1	110QRNR	10-09-01	226	690	7.3	12.7
00823		411447087513101	32N12E-20.1f	350SLRN	10-10-01	262	963	7.0	12.0
20458		412603087452601	34N13E-17.5e1	350SLRN	10-10-01	460	1080	7.2	11.5
50060		403432089380901	25N 5W-35.4d1	110QRNR	10-15-01	145	1280	6.8	14.2
60053		383932090012601	3N 8W-31.2a1	110QRNR	10-16-01	102	772	6.8	14.4
11782		415551088575201	40N 2E-23.2f2	360ODVC	10-23-01	723	492	6.9	11.6
31409		404418089011802	26N 2E- 5.7a1	110QRNR	10-23-01	120	709	6.4	12.9
50055		403116089251401	24N 3W-23.8e1	110QRNR	10-30-01	75	613	7.1	12.6
50057		403404089390701	24N 5W- 3.3h1	110QRNR	10-30-01	91	708	7.1	14.3
20250		421433088002701	44N10E-36.2b1	340DVSL	10-31-01	204	918	7.4	11.7
00602		414320089201301	20N10E-15.6e1	367OVCB	11-07-01	1115	607	6.2	11.7
11470		413654088475601	36N 4E- 8.4h1	350SLRN	11-07-01	230	552	6.4	11.8
11678		421256088593801	43N 2E-10.7d2	365ANCL	11-07-01	530	560	6.2	10.9
50308		401754090032001	21N 8W- 6.8e	110QRNR	11-13-01	96	346	7.8	13.9
00366		421840088033001	44N10E-10.6g	350SLRN	11-20-01	250	767	7.3	11.1
02305		422225088102501	45N 9E-15.6a1	110QRNR	11-20-01	123	1010	6.5	11.5
20357		412608088121401	34N 9E- 9.4a1	365ANCL	11-21-01	765	850	7.8	13.0
47561		404625087335301	26N11W- 2.4g1	110QRNR	11-27-01	116	465	7.6	12.7
01118		400111090312502	1N 1W-33.6e	110QRNR	12-04-01	60	655	7.0	13.1
11509		411928089073001	33N 1E-20.1h1	367OVCB	12-04-01	2591	1560	6.4	24.0
47518		410002088313401	29N 6E-10.8e1	367OVCB	12-04-01	1940	2220	6.7	20.6
20152		422231088221101	45N 7E-13.6c1	110QRNR	12-09-01	220	551	6.9	10.9
20141		421222088152701	43N 8E-14.1e1	367OVCB	12-09-01	1300	430	6.9	15.3
11891		422931089473201	29N 6E-22.2b1	367OVCB	12-11-01	355	530	6.4	11.2
20330		413137088011901	35N11E-18.5g	340DVSL	12-11-01	192	962	7.1	12.0
50251		400623089361201	19N 5W-13.2h2	110QRNR	12-12-01	145	465	6.8	13.0
50376		403737089195401	25N 2W-16.2g1	110QRNR	12-12-01	335	556	6.9	12.4
50094		404417090541502	9N 5W-25.1c1	333VLMR	12-18-01	71	664	6.6	12.4
47819		385946088020701	7N11E-31.8a2	320PSLV	12-19-01	269	784	8.2	14.2
50224		394605089155301	15N 2W-12.6g1	110QRNR	01-09-02	70	710	6.4	13.4
52120		394557090361601	15N14W-12.4g1	110QRNR	01-09-02	93	663	6.5	18.2
20285		421803087554801	44N11E-10.3b1	350SLRN	01-14-02	242	1030	7.2	7.2
47532		404532088111201	26N 9E- 4.2f1	110QRNR	01-15-02	78	709	6.5	12.4
47551		404614087512502	26N13W- 5.6h2	110QRNR	01-15-02	132	691	6.8	13.0
00757		372000088431001	14S 4E- 1.5f1	110QRNR	01-22-02	101.5	413	6.7	14.6
20700		415410088034301	39N10E- 2.4h1	362MQKT	01-23-02	350	972	7.2	11.3
31307		410134089244503	30N 3W-26.1b3	110QRNR	01-29-02	50	580	6.5	13.3
31428		405404089022301	28N 2E- 7.5c2	367OVCB	01-29-02	2005	2780	6.9	21.9
11562		415035089175901	21N10E- 1.7g1	367OVCB	02-05-02	769	550	6.3	11.1
11636		421611089031101	44N 2E-19.7b1	110QRNR	02-05-02	237	810	6.3	11.5
11406		415552088465601	40N 4E-21.4f1	367OVCB	02-06-02	1307	473	6.6	12.4
11438		413805088405102	37N 5E-32.1c2	367OVCB	02-06-02	502	608	6.5	11.6
20497		415134088075001	39N10E-17.8a1	350SLRN	02-11-02	200	989	6.6	17.2
47692		395411087485701	17N13W-27.6e1	110QRNR	02-19-02	28	530	6.9	12.7
60127		381238090160001	4S11W- 1.5a1	110QRNR	02-25-02	59	621	6.1	14.9
00251		391251087393801	9N11W-20.6h2	110QRNR	03-04-02	115	684	6.4	14.0
47811		390644087391802	8N11W-29.4h2	110QRNR	03-04-02	32	647	6.3	12.9
11327		411722089221201	15N10E-17.7g1	355NIGR	03-05-02	334	3260	7.2	13.4
11347		412534089215601	17N10E-29.5c1	110QRNR	03-05-02	270	655	6.5	11.8
11904		414305089550901	20N 5E-15.8b1	365GLPV	03-06-02	820	571	6.4	14.0
00795		420559088322101	42N 6E-21.3b2	372IRGL	03-11-02	1195	508	6.6	13.2
01416		394953090331202	16N13W-22.5g2	110QRNR	03-12-02	90	623	6.3	14.3
47725		395640088515501	17N 3E- 9.2e1	110QRNR	03-12-02	132	893	6.1	12.6
45155		392418087392101	11N11W- 8.4a1	110QRNR	03-18-02	68	536	7.1	11.1
11892		413920090044401	19N 4E- 6.3a1	350SLRN	03-19-02	567	498	6.5	12.3
31889		412421090334501	16N 2W- 1.6d1	340DVSL	03-19-02	509	647	6.5	12.9
50101		394212090344901	15N13W-31.2d2	110QRNR	04-01-02	76	680	7.2	13.4
50227		400022090522301	1S 4W- 4.1b1	330MSSP	04-01-02	483	158	8.6	15.4
20207		421943088160501	45N 8E-35.5a1	110QRNR	04-02-02	60	1200	6.4	12.2
45081		400836088185101	20N 8E-33.8a1	110QRNR	04-08-02	338	614	8.1	12.9
47687		401217088220301	20N 7E-12.8c1	110QRNR	04-08-02	282.5	634	7.7	12.5
11363		413328089274501	18N 9E- 9.5c2	110QRNR	04-09-02	404	477	7.6	12.1
71531		383124088135401	1N 9E-17.5g1	320PSLV	04-16-02	215	1650	7.4	15.0
50395		391411090072001	9N 9W- 8.5b2	110QRNR	04-22-02	51	867	6.8	13.3
20297		420947087561801	43N11E-34.5f1	350SLRN	04-23-02	280	940	7.2	11.1
20447		413337088055501	36N10E-33.7e1	350SLRN	04-23-02	303	992	6.9	12.0
50298		401930090361701	4N 2W-15.2b1	330MSSP	04-29-02	380	1200	6.9	13.8
50383		403758089370801	25N 5W-12.5e	110QRNR	04-29-02	78	969	7.1	13.4
11367		412232089275101	16N 9E-16.6g3	110QRNR	04-30-02	270	497	7.5	11.9
11495		412030089001901	33N 2E- 9.7b1	367OVCB	04-30-02	1078	1430	7.0	13.3
11600		411529089105701	32N 1W-11.1e1	365ANCL	04-30-02	1800	1580	7.4	19.6
20180		422322088140901	45N 9E- 7.8d1	350SLRN	05-14-02	294	573	6.7	11.6
22040		412143088254901	33N 7E- 4.4c1	367OVCB	05-14-02	1462	648	7.1	15.8
00276		421359088323201	43N 6E- 4.5d1	365STPR	05-20-02	760	500	7.1	12.8
11560	a	415027089175501	21N10E- 1.6f1	350SLRN	05-20-02	298	760	6.9	11.8
00572		393324088363301	13N 5E-23.3f	110QRNR	05-21-02	115	742	7.2	12.8
50237		392439089262001	11N 3W- 8.3a2	110QRNR	05-21-02	44	830	6.9	13.4
52062		394338090542001	4S 4W- 7.5a1	330MSSP	06-05-02	429	554	8.5	15.6
20613		415839088113901	40N 9E- 3.5b1	350SLRN	06-11-02	392	716	6.6	11.5
50351	b	404511090004001	9N 5E- 7.6d1	367OVCB	06-11-02	1572	3710	8.5	21.9
20442		412854087503501	35N12E-34.6g1	350SLRN	06-17-02	428	936	7.0	12.0
47573		403551088021302	25N10E-26.6d2	110QRNR	06-17-02	152	1200	7.3	13.4
11557		414955089291901	21N 9E- 5.5a1	367OVCB	06-18-02	1870	537	6.9	11.4
11629		421656089031301	44N 2E-18.7a2	110QRNR	06-18-02	295	651	6.9	11.4
20029		420727088153901	42N 8E-14.2h1	110QRNR	06-24-02	183	783	6.5	11.4
11570		414122088585401	37N 2E-10.1c1	367OVCB	06-25-02	1053	378	7.3	12.9
11943	c	415509089032801	40N 1E-25.2h1	367OVCB	06-25-02	888	534	7.0	11.5
20766		414945088115101	39N 9E-34.5h1	350SLRN	07-01-02	365	1210	6.4	11.2
50003		395106089432801	16N 6W-12.5g	110QRNR	07-02-02	55	703	6.4	13.0
60058		385235090072601	5N 9W-20.4h2	110QRNR	07-02-02	92	815	9.1	15.0
50051		404126089305001	26N 4W-24.5a	110QRNR	07-17-02	260	695	7.3	13.4
11707		420608089501401	24N 6E- 5.6d1	367OVCB	07-29-02	1082	544	6.9	12.8
11514		410931088384401	31N 5E-16.1d1	320PSLV	07-30-02	280	986	7.3	12.9
20328	d	413117087481701	35N12E-13.6e1	350SLRN	08-06-02	500	1050	6.4	12.2
20389		413234087513401	35N12E- 9.4h1	350SLRN	08-07-02	420	1400	6.5	12.0
20436		412015087472301	33N12E-24.2g1	350SLRN	08-07-02	300	1000	6.3	18.4
31701		411129090225701	14N 1E-21.1f1	367OVCB	08-13-02	1209	1560	7.5	17.5
31820		411537090363701	15N 2W-27.8c1	34ODVSL	08-13-02	604	1890	7.5	14.4
31930		413003090252401	18N 1E-31.4a1	350SLRN	08-13-02	554	577	7.2	12.5
60089		384417090005201	3N 8W- 5.6d1	110QRNR	08-14-02	106	800	6.4	15.1
11706		420614089500101	24N 6E- 5.5e1	367OVCB	08-19-02	1100	524	7.0	12.2
11778		420739089132901	25N11E-32.6g1	367OVCB	08-19-02	740	607	7.1	11.6
00546		422448088041901	45N10E- 4.4g2	110QRNR	08-27-02	150	668	7.0	12.0
47501		404533088173901	26N 8E- 3.8g1	110QRNR	08-28-02	100	1000	6.9	15.7
47578		403059088041202	24N10E-28.4h2	110QRNR	08-28-02	158	1060	6.8	14.3
47586		404247087434701	26N12W-29.2g2	110QRNR	08-28-02	124	845	6.9	13.2
40013		394343088281801	15N 7E-19.8c1	110QRNR	09-03-02	84	814	6.6	15.0
50238		392438089262101	11N 3W- 9.8c1	110QRNR	09-04-02	47	592	6.7	19.4
52095	e	392422089411901	11N 5W-18.4h1	110QRNR	09-04-02	44	645	6.6	18.1
50064		404305089283501	26N 3W-17.5h1	110QRNR	09-09-02	333	385	7.3	12.8
01233		421234088002501	43N10E-13.2b	350SLRN	09-16-02	259	1990	7.4	11.8
60171		380805089594701	5S 8W- 4.7h1	330MSSP	09-18-02	315	560	7.4	17.6
00140		392154089413401	11N 5W-30.6b1	110QRNR	09-23-02	59	724	6.9	13.2
11419		414608088375201	38N 5E-14.4d1	367OVCB	09-24-02	573	546	7.1	11.2
11456	f	413528088552101	36N 3E-18.4d1	367OVCB	09-24-02	150	576	7.4	13.5
22073		411436087384801	32N14E-19.1b1	350SLRN	09-24-02	330	830	6.9	12.4
50138		405525089452201	11N 6E-24.1e1	367OVCB	09-24-02	1680	2450	7.2	22.1

MISCELLANEOUS GROUND-WATER QUALITY HERBICIDES IN SOURCE-WATER AQUIFERS TAPPED BY PUBLIC-SUPPLY WELLS IN ILLINOIS-2

				ACETO-	ACETO-	ACETO-		ALA-	ALA-	ALA-
			ACETO-	CHLOR	CHLOR	CHLOR,	ALA-	CHLOR	CHLOR	CHLOR,
IEPA			CHLOR,	ESA,	OA,	SAA,	CHLOR,	ESA,	OA,	SAA,
WELL	USGS	SAMPLE	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-
NUMBER	STATION NUMBER	DATE	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED
			(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
			(49260)	(61029)	(61030)	(62847)	(46342)	(50009)	(61031)	(62848)
47583	403143088054701	10-09-01	<0.05	<0.05	<0.05	--	<0.05	<0.05	<0.05	--
00823	411447087513101	10-10-01	<.05	.21	<.05	--	<.05	<.05	<.05	--
20458	412603087452601	10-10-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
50060	403432089380901	10-15-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
60053	383932090012601	10-16-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
11782	415551088575201	10-23-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
31409	404418089011802	10-23-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
50055	403116089251401	10-30-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
50057	403404089390701	10-30-01	<.05	.45	.18	--	<.05	<.05	<.05	--
20250	421433088002701	10-31-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
00602	414320089201301	11-07-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
11470	413654088475601	11-07-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
11678	421256088593801	11-07-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
50308	401754090032001	11-13-01	<.05	<.05	<.05	--	<.05	.06	<.05	--
00366	421840088033001	11-20-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
02305	422225088102501	11-20-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
20357	412608088121401	11-21-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
47561	404625087335301	11-27-01	<.05	<.05	<.05	--	<.05	<.05	<.05	--
01118	400111090312502	12-04-01	<.05	<.05	<.05	<0.05	<.05	.07	<.05	<0.05
11509	411928089073001	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47518	410002088313401	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20152	422231088221101	12-10-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20141	421222088152701	12-10-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11891	422931089473201	12-11-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20330	413137088011901	12-11-01	<.05	<.05	<.05	<.05	<.05	.09	<.05	<.05
50251	400623089361201	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50376	403737089195401	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50094	404417090541502	12-18-01	<.05	<.05	<.05	<.05	<.05	.21	<.05	<.05
47819	385946088020701	12-19-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50224	394605089155301	01-09-02	<.05	<.05	<.05	<.05	<.05	.07	<.05	<.05
52120	394557090361601	01-09-02	<.05	.16	.16	<.05	<.05	.34	.09	<.05
20285	421803087554801	01-14-02	<.05	<.05	<.05	<.05	<.05	.05	<.05	<.05
47532	404532088111201	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47551	404614087512502	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00757	372000088431001	01-22-02	<.05	<.05	<.05	<.05	<.05	.11	<.05	<.05
20700	415410088034301	01-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31307	410134089244503	01-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31428	405404089022301	01-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11562	415035089175901	02-05-02	<.05	<.05	<.05	<.05	<.05	.38	<.05	<.05
11636	421611089031101	02-05-02	<.05	<.05	<.05	<.05	<.05	.05	<.05	<.05
11406	415552088465601	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11438	413805088405102	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20497	415134088075001	02-11-02	<.05	<.05	<.05	<.05	<.05	.06	<.05	<.05
47692	395411087485701	02-19-02	<.05	<.05	<.05	<.05	<.05	.09	<.05	<.05
60127	381238090160001	02-25-02	<.05	.25	.25	<.05	<.05	.19	.08	<.05
00251	391251087393801	03-04-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47811	390644087391802	03-04-02	<.05	.08	<.05	<.05	<.05	.12	<.05	<.05
11327	411722089221201	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11347	412534089215601	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11904	414305089550901	03-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00795	420559088322101	03-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01416	394953090331202	03-12-02	<.05	<.05	<.05	<.05	<.05	.08	<.05	<.05
47725	395640088515501	03-12-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
45155	392418087392101	03-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11892	413920090044401	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31889	412421090334501	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50101	394212090344901	04-01-02	<.05	<.05	<.05	<.05	<.05	.13	<.05	<.05
50227	400022090522301	04-01-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20207	421943088160501	04-02-02	<.05	<.05	<.05	<.05	<.05	.12	<.05	<.05
45081	400836088185101	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47687	401217088220301	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11363	413328089274501	04-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
71531	383124088135401	04-16-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50395	391411090072001	04-22-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20297	420947087561801	04-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20447	413337088055501	04-23-02	<.05	.05	<.05	<.05	<.05	.52	.06	<.05
50298	401930090361701	04-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50383	403758089370801	04-29-02	<.05	.07	.09	<.05	<.05	.41	.06	<.05
11367	412232089275101	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11495	412030089001901	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11600	411529089105701	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20180	422322088140901	05-14-02	<.05	<.05	<.05	<.05	<.05	.18	<.05	<.05
22040	412143088254901	05-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00276	421359088323201	05-20-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11560	415027089175501	05-20-02	<.05	<.05	<.05	<.05	<.05	.39	<.05	<.05
00572	393324088363301	05-21-02	<.05	.11	.20	<.05	<.05	.81	.41	<.05
50237	392439089262001	05-21-02	<.05	.13	<.05	<.05	<.05	2.15	.41	<.05
52062	394338090542001	06-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20613	415839088113901	06-11-02	<.05	<.05	<.05	<.05	<.05	.13	<.05	<.05
50351	404511090004001	06-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20442	412854087503501	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47573	403551088021302	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11557	414955089291901	06-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11629	421656089031301	06-18-02	<.05	<.05	<.05	<.05	<.05	.07	<.05	<.05
20029	420727088153901	06-24-02	<.05	<.05	<.05	<.05	<.05	.17	<.05	<.05
11570	414122088585401	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11943	415509089032801	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20766	414945088115101	07-01-02	<.05	<.05	<.05	<.05	<.05	.11	<.05	<.05
50003	395106089432801	07-02-02	<.05	.28	.06	<.05	<.05	.11	<.05	<.05
60058	385235090072601	07-02-02	<.05	<.05	<.05	<.05	<.05	.37	.12	<.05
50051	404126089305001	07-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11707	420608089501401	07-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11514	410931088384401	07-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20328	413117087481701	08-06-02	<.05	<.05	<.05	<.05	<.05	.10	<.05	<.05
20389	413234087513401	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20436	412015087472301	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31701	411129090225701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31820	411537090363701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31930	413003090252401	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60089	384417090005201	08-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11706	420614089500101	08-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11778	420739089132901	08-19-02	<.05	<.05	<.05	<.05	<.05	.35	<.05	<.05
00546	422448088041901	08-27-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47501	404533088173901	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47578	403059088041202	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47586	404247087434701	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
40013	394343088281801	09-03-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50238	392438089262101	09-04-02	<.05	4.18	.15	<.05	<.05	<.05	<.05	<.05
52095	392422089411901	09-04-02	<.05	<.05	<.05	<.05	<.05	.06	<.05	<.05
50064	404305089283501	09-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01233	421234088002501	09-16-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60171	380805089594701	09-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00140	392154089413401	09-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11419	414608088375201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11456	413528088552101	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
22073	411436087384801	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50138	405525089452201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05

MISCELLANEOUS GROUND-WATER QUALITY HERBICIDES IN SOURCE-WATER AQUIFERS TAPPED BY PUBLIC-SUPPLY WELLS IN ILLINOIS-3

					DEETHYL	DEISO-		CYANA-		DIMETH-	DIMETH
				ATRA-	ATRA-	PROPYL	CYANA-	ZINE-	DIMETH-	ENAMID	ENAMID
IEPA			AMETRYN,	ZINE,	ZINE,	ATRAZINE,	ZINE,	AMIDE,	ENAMID,	ESA,	OA,
WELL	USGS	SAMPLE	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-
NUMBER	STATION NUMBER	DATE	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED
			(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L
			(38401)	(39632)	(04040)	(04038)	(04041)	(61709)	(61588)	(61951)	(62482
47583	403143088054701	10-09-01	<.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05	<0.05
00823	411447087513101	10-10-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20458	412603087452601	10-10-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50060	403432089380901	10-15-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60053	383932090012601	10-16-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11782	415551088575201	10-23-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31409	404418089011802	10-23-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50055	403116089251401	10-30-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50057	403404089390701	10-30-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20250	421433088002701	10-31-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00602	414320089201301	11-07-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11470	413654088475601	11-07-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11678	421256088593801	11-07-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50308	401754090032001	11-13-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00366	421840088033001	11-20-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
02305	422225088102501	11-20-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20357	412608088121401	11-21-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47561	404625087335301	11-27-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01118	400111090312502	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11509	411928089073001	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47518	410002088313401	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20152	422231088221101	12-09-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20141	421222088152701	12-09-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11891	422931089473201	12-11-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20330	413137088011901	12-11-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50251	400623089361201	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50376	403737089195401	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50094	404417090541502	12-18-01	<.05	.05	.21	<.05	<.05	<.05	<.05	<.05	<.05
47819	385946088020701	12-19-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50224	394605089155301	01-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
52120	394557090361601	01-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	.05	<.05
20285	421803087554801	01-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47532	404532088111201	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47551	404614087512502	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00757	372000088431001	01-22-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20700	415410088034301	01-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31307	410134089244503	01-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31428	405404089022301	01-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11562	415035089175901	02-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11636	421611089031101	02-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11406	415552088465601	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11438	413805088405102	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20497	415134088075001	02-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47692	395411087485701	02-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60127	381238090160001	02-25-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00251	391251087393801	03-04-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47811	390644087391802	03-04-02	<.05	.05	.05	<.05	<.05	<.05	<.05	<.05	<.05
11327	411722089221201	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11347	412534089215601	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11904	414305089550901	03-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00795	420559088322101	03-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01416	394953090331202	03-12-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47725	395640088515501	03-12-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
45155	392418087392101	03-18-02	<.05	.06	.08	<.05	<.05	<.05	<.05	<.05	<.05
11892	413920090044401	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31889	412421090334501	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50101	394212090344901	04-01-02	<.05	<.05	.05	<.05	<.05	<.05	<.05	<.05	<.05
50227	400022090522301	04-01-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20207	421943088160501	04-02-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
45081	400836088185101	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47687	401217088220301	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11363	413328089274501	04-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
71531	383124088135401	04-16-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50395	391411090072001	04-22-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20297	420947087561801	04-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20447	413337088055501	04-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50298	401930090361701	04-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50383	403758089370801	04-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11367	412232089275101	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11495	412030089001901	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11600	411529089105701	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20180	422322088140901	05-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
22040	412143088254901	05-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00276	421359088323201	05-20-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11560	415027089175501	05-20-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00572	393324088363301	05-21-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50237	392439089262001	05-21-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	.05	<.05
52062	394338090542001	06-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20613	415839088113901	06-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50351	404511090004001	06-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20442	412854087503501	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47573	403551088021302	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11557	414955089291901	06-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11629	421656089031301	06-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20029	420727088153901	06-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11570	414122088585401	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11943	415509089032801	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20766	414945088115101	07-01-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50003	395106089432801	07-02-02	<.05	.22	.21	<.05	<.05	<.05	<.05	.16	<.05
60058	385235090072601	07-02-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50051	404126089305001	07-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11707	420608089501401	07-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11514	410931088384401	07-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20328	413117087481701	08-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20389	413234087513401	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20436	412015087472301	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31701	411129090225701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31820	411537090363701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31930	413003090252401	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60089	384417090005201	08-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11706	420614089500101	08-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11778	420739089132901	08-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00546	422448088041901	08-27-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47501	404533088173901	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47578	403059088041202	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47586	404247087434701	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
40013	394343088281801	09-03-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50238	392438089262101	09-04-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
52095	392422089411901	09-04-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50064	404305089283501	09-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01233	421234088002501	09-16-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60171	380805089594701	09-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00140	392154089413401	09-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11419	414608088375201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11456	413528088552101	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
22073	411436087384801	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50138	405525089452201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05	<.05

MISCELLANEOUS GROUND-WATER QUALITY HERBICIDES IN SOURCE-WATER AQUIFERS TAPPED BY PUBLIC-SUPPLY WELLS IN ILLINOIS-4

				FLUFEN-	FLUFEN-			AMINO-
			FLUFEN-	ACET	ACET			METHYL
IEPA			ACET,	ESA,	OA,	GLYPHO-	GLUFO-	PHOSPHONIC
WELL	USGS	SAMPLE	DIS-	DIS-	DIS-	SATE,	SINATE,	ACID,
NUMBER	STATION NUMBER	DATE	SOLVED	SOLVED	SOLVED	DISSOLVED	DISSOLVED	DISSOLVED
			(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
			(62481)	(61952)	(62483)	(62722)	(62721)	(62649)
47583	403143088054701	10-09-01	<0.05	<0.05	<0.05	<0.10	<0.10	<0.10
00823	411447087513101	10-10-01	<.05	<.05	<.05	<.10	<.10	<.10
20458	412603087452601	10-10-01	<.05	<.05	<.05	<.10	<.10	<.10
50060	403432089380901	10-15-01	<.05	<.05	<.05	<.10	<.10	<.10
60053	383932090012601	10-16-01	<.05	<.05	<.05	<.10	<.10	<.10
11782	415551088575201	10-23-01	<.05	<.05	<.05	<.10	<.10	<.10
31409	404418089011802	10-23-01	<.05	<.05	<.05	<.10	<.10	<.10
50055	403116089251401	10-30-01	<.05	<.05	<.05	<.10	<.10	<.10
50057	403404089390701	10-30-01	<.05	<.05	<.05	<.10	<.10	<.10
20250	421433088002701	10-31-01	<.05	<.05	<.05	<.10	<.10	<.10
00602	414320089201301	11-07-01	<.05	<.05	<.05	<.10	<.10	<.10
11470	413654088475601	11-07-01	<.05	<.05	<.05	<.10	<.10	<.10
11678	421256088593801	11-07-01	<.05	<.05	<.05	<.10	<.10	<.10
50308	401754090032001	11-13-01	<.05	<.05	<.05	<.10	<.10	<.10
00366	421840088033001	11-20-01	<.05	<.05	<.05	<.10	<.10	<.10
02305	422225088102501	11-20-01	<.05	<.05	<.05	<.10	<.10	<.10
20357	412608088121401	11-21-01	<.05	<.05	<.05	<.10	<.10	<.10
47561	404625087335301	11-27-01	<.05	<.05	<.05	<.10	<.10	<.10
01118	400111090312502	12-04-01	<.05	<.05	<.05	<.10	<.10	<.10
11509	411928089073001	12-04-01	<.05	<.05	<.05	<.10	<.10	<.10
47518	410002088313401	12-04-01	<.05	<.05	<.05	<.10	<.10	<.10
20152	422231088221101	12-09-01	<.05	<.05	<.05	<.10	<.10	<.10
20141	421222088152701	12-09-01	<.05	<.05	<.05	<.10	<.10	<.10
11891	422931089473201	12-11-01	<.05	<.05	<.05	<.10	<.10	<.10
20330	413137088011901	12-11-01	<.05	<.05	<.05	<.10	<.10	<.10
50251	400623089361201	12-12-01	<.05	<.05	<.05	<.10	<.10	<.10
50376	403737089195401	12-12-01	<.05	<.05	<.05	<.10	<.10	<.10
50094	404417090541502	12-18-01	<.05	<.05	<.05	<.10	<.10	<.10
47819	385946088020701	12-19-01	<.05	<.05	<.05	<.10	<.10	<.10
50224	394605089155301	01-09-02	<.05	<.05	<.05	<.10	<.10	<.10
52120	394557090361601	01-09-02	<.05	<.05	<.05	<.10	<.10	<.10
20285	421803087554801	01-14-02	<.05	<.05	<.05	<.10	<.10	<.10
47532	404532088111201	01-15-02	<.05	<.05	<.05	<.10	<.10	<.10
47551	404614087512502	01-15-02	<.05	<.05	<.05	<.10	<.10	<.10
00757	372000088431001	01-22-02	<.05	<.05	<.05	<.10	<.10	<.10
20700	415410088034301	01-23-02	<.05	<.05	<.05	<.10	<.10	<.10
31307	410134089244503	01-29-02	<.05	<.05	<.05	<.10	<.10	<.10
31428	405404089022301	01-29-02	<.05	<.05	<.05	<.10	<.10	<.10
11562	415035089175901	02-05-02	<.05	<.05	<.05	<.10	<.10	<.10
11636	421611089031101	02-05-02	<.05	<.05	<.05	<.10	<.10	<.10
11406	415552088465601	02-06-02	<.05	<.05	<.05	<.10	<.10	<.10
11438	413805088405102	02-06-02	<.05	<.05	<.05	<.10	<.10	<.10
20497	415134088075001	02-11-02	<.05	<.05	<.05	<.10	<.10	<.10
47692	395411087485701	02-19-02	<.05	<.05	<.05	<.10	<.10	<.10
60127	381238090160001	02-25-02	<.05	<.05	<.05	<.10	<.10	<.10
00251	391251087393801	03-04-02	<.05	<.05	<.05	<.10	<.10	<.10
47811	390644087391802	03-04-02	<.05	<.05	<.05	<.10	<.10	<.10
11327	411722089221201	03-05-02	<.05	<.05	<.05	<.10	<.10	<.10
11347	412534089215601	03-05-02	<.05	<.05	<.05	<.10	<.10	<.10
11904	414305089550901	03-06-02	<.05	<.05	<.05	<.10	<.10	<.10
00795	420559088322101	03-11-02	<.05	<.05	<.05	<.10	<.10	<.10
01416	394953090331202	03-12-02	<.05	<.05	<.05	<.10	<.10	<.10
47725	395640088515501	03-12-02	<.05	<.05	<.05	<.10	<.10	<.10
45155	392418087392101	03-18-02	<.05	<.05	<.05	<.10	<.10	<.10
11892	413920090044401	03-19-02	<.05	<.05	<.05	<.10	<.10	<.10
31889	412421090334501	03-19-02	<.05	<.05	<.05	<.10	<.10	<.10
50101	394212090344901	04-01-02	<.05	<.05	<.05	<.10	<.10	<.10
50227	400022090522301	04-01-02	<.05	<.05	<.05	<.10	<.10	<.10
20207	421943088160501	04-02-02	<.05	<.05	<.05	<.10	<.10	<.10
45081	400836088185101	04-08-02	<.05	<.05	<.05	<.10	<.10	<.10
47687	401217088220301	04-08-02	<.05	<.05	<.05	<.10	<.10	<.10
11363	413328089274501	04-09-02	<.05	<.05	<.05	<.10	<.10	<.10
71531	383124088135401	04-16-02	<.05	<.05	<.05	<.10	<.10	<.10
50395	391411090072001	04-22-02	<.05	<.05	<.05	<.10	<.10	<.10
20297	420947087561801	04-23-02	<.05	<.05	<.05	<.10	<.10	<.10
20447	413337088055501	04-23-02	<.05	<.05	<.05	<.10	<.10	<.10
50298	401930090361701	04-29-02	<.05	<.05	<.05	<.10	<.10	<.10
50383	403758089370801	04-29-02	<.05	<.05	<.05	<.10	<.10	<.10
11367	412232089275101	04-30-02	<.05	<.05	<.05	<.10	<.10	<.10
11495	412030089001901	04-30-02	<.05	<.05	<.05	<.10	<.10	<.10
11600	411529089105701	04-30-02	<.05	<.05	<.05	<.10	<.10	<.10
20180	422322088140901	05-14-02	<.05	<.05	<.05	<.10	<.10	<.10
22040	412143088254901	05-14-02	<.05	<.05	<.05	<.10	<.10	<.10
00276	421359088323201	05-20-02	<.05	<.05	<.05	<.10	<.10	<.10
11560	415027089175501	05-20-02	<.05	<.05	<.05	<.10	<.10	<.10
00572	393324088363301	05-21-02	<.05	<.05	<.05	<.10	<.10	<.10
50237	392439089262001	05-21-02	<.05	<.05	<.05	<.10	<.10	<.10
52062	394338090542001	06-05-02	<.05	<.05	<.05	<.10	<.10	<.10
20613	415839088113901	06-11-02	<.05	<.05	<.05	<.10	<.10	<.10
50351	404511090004001	06-11-02	<.05	<.05	<.05	<.10	<.10	<.10
20442	412854087503501	06-17-02	<.05	<.05	<.05	<.10	<.10	<.10
47573	403551088021302	06-17-02	<.05	<.05	<.05	<.10	<.10	<.10
11557	414955089291901	06-18-02	<.05	<.05	<.05	<.10	<.10	<.10
11629	421656089031301	06-18-02	<.05	<.05	<.05	<.10	<.10	<.10
20029	420727088153901	06-24-02	<.05	<.05	<.05	<.10	<.10	<.10
11570	414122088585401	06-25-02	<.05	<.05	<.05	<.10	<.10	<.10
11943	415509089032801	06-25-02	<.05	<.05	<.05	<.10	<.10	<.10
20766	414945088115101	07-01-02	<.05	<.05	<.05	<.10	<.10	<.10
50003	395106089432801	07-02-02	<.05	<.05	<.05	<.10	<.10	<.10
60058	385235090072601	07-02-02	<.05	<.05	<.05	<.10	<.10	<.10
50051	404126089305001	07-17-02	<.05	<.05	<.05	<.10	<.10	<.10
11707	420608089501401	07-29-02	<.05	<.05	<.05	<.10	<.10	<.10
11514	410931088384401	07-30-02	<.05	<.05	<.05	<.10	<.10	<.10
20328	413117087481701	08-06-02	<.05	<.05	<.05	<.10	<.10	<.10
20389	413234087513401	08-07-02	<.05	<.05	<.05	<.10	<.10	<.10
20436	412015087472301	08-07-02	<.05	<.05	<.05	<.10	<.10	<.10
31701	411129090225701	08-13-02	<.05	<.05	<.05	<.10	<.10	<.10
31820	411537090363701	08-13-02	<.05	<.05	<.05	<.10	<.10	<.10
31930	413003090252401	08-13-02	<.05	<.05	<.05	<.10	<.10	<.10
60089	384417090005201	08-14-02	<.05	<.05	<.05	<.10	<.10	<.10
11706	420614089500101	08-19-02	<.05	<.05	<.05	<.10	<.10	<.10
11778	420739089132901	08-19-02	<.05	<.05	<.05	<.10	<.10	<.10
00546	422448088041901	08-27-02	<.05	<.05	<.05	<.10	<.10	<.10
47501	404533088173901	08-28-02	<.05	<.05	<.05	<.10	<.10	<.10
47578	403059088041202	08-28-02	<.05	<.05	<.05	<.10	<.10	<.10
47586	404247087434701	08-28-02	<.05	<.05	<.05	<.10	<.10	<.10
40013	394343088281801	09-03-02	<.05	<.05	<.05	<.10	<.10	<.10
50238	392438089262101	09-04-02	<.05	<.05	<.05	<.10	<.10	<.10
52095	392422089411901	09-04-02	<.05	<.05	<.05	<.10	<.10	<.10
50064	404305089283501	09-09-02	<.05	<.05	<.05	<.10	<.10	<.10
01233	421234088002501	09-16-02	<.05	<.05	<.05	<.10	<.10	<.10
60171	380805089594701	09-18-02	<.05	<.05	<.05	<.10	<.10	<.10
00140	392154089413401	09-23-02	<.05	<.05	<.05	<.10	<.10	<.10
11419	414608088375201	09-24-02	<.05	<.05	<.05	<.10	<.10	<.10
11456	413528088552101	09-24-02	<.05	<.05	<.05	<.10	<.10	<.10
22073	411436087384801	09-24-02	<.05	<.05	<.05	<.10	<.10	<.10
50138	405525089452201	09-24-02	<.05	<.05	<.05	<.10	<.10	<.10

MISCELLANEOUS GROUND-WATER QUALITY HERBICIDES IN SOURCE-WATER AQUIFERS TAPPED BY PUBLIC-SUPPLY WELLS IN ILLINOIS-5

				METOLA-	METOLA-		PENDI-
			METOLA-	CHLOR	CHLOR	METRI-	METHA-	PRO-	PRO-
IEPA			CHLOR,	ESA,	OA,	BUZIN,	LIN,	METON,	METRYN,
WELL	USGS	SAMPLE	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-
NUMBER	STATION NUMBER	DATE	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED
			(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
			(39415)	(61043)	(61044)	(82630)	(82683)	(04037)	(04036)
47583	403143088054701	10-09-01	<.05	<0.05	<.05	<0.05	<0.05	<0.05	<0.05
00823	411447087513101	10-10-01	<.05	.86	.21	<.05	<.05	<.05	<.05
20458	412603087452601	10-10-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50060	403432089380901	10-15-01	<.05	.09	<.05	<.05	<.05	<.05	<.05
60053	383932090012601	10-16-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11782	415551088575201	10-23-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31409	404418089011802	10-23-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50055	403116089251401	10-30-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50057	403404089390701	10-30-01	<.05	.57	.23	<.05	<.05	<.05	<.05
20250	421433088002701	10-31-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00602	414320089201301	11-07-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11470	413654088475601	11-07-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11678	421256088593801	11-07-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50308	401754090032001	11-13-01	<.05	.13	<.05	<.05	<.05	<.05	<.05
00366	421840088033001	11-20-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
02305	422225088102501	11-20-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20357	412608088121401	11-21-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47561	404625087335301	11-27-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01118	400111090312502	12-04-01	<.05	.17	.07	<.05	<.05	<.05	<.05
11509	411928089073001	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47518	410002088313401	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20152	422231088221101	12-09-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20141	421222088152701	12-09-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11891	422931089473201	12-11-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20330	413137088011901	12-11-01	<.05	.12	<.05	<.05	<.05	<.05	<.05
50251	400623089361201	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50376	403737089195401	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50094	404417090541502	12-18-01	<.05	.24	<.05	<.05	<.05	<.05	<.05
47819	385946088020701	12-19-01	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50224	394605089155301	01-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
52120	394557090361601	01-09-02	<.05	.60	.26	<.05	<.05	<.05	<.05
20285	421803087554801	01-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47532	404532088111201	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47551	404614087512502	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00757	372000088431001	01-22-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20700	415410088034301	01-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31307	410134089244503	01-29-02	<.05	.14	<.05	<.05	<.05	<.05	<.05
31428	405404089022301	01-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11562	415035089175901	02-05-02	<.05	2.46	<.05	<.05	<.05	<.05	<.05
11636	421611089031101	02-05-02	<.05	.07	<.05	<.05	<.05	<.05	<.05
11406	415552088465601	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11438	413805088405102	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20497	415134088075001	02-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47692	395411087485701	02-19-02	<.05	.77	<.05	<.05	<.05	<.05	<.05
60127	381238090160001	02-25-02	<.05	.17	.13	<.05	<.05	<.05	<.05
00251	391251087393801	03-04-02	.16	.07	<.05	<.05	<.05	<.05	<.05
47811	390644087391802	03-04-02	<.05	.52	.52	<.05	<.05	<.05	<.05
11327	411722089221201	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11347	412534089215601	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11904	414305089550901	03-06-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00795	420559088322101	03-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01416	394953090331202	03-12-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47725	395640088515501	03-12-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
45155	392418087392101	03-18-02	<.05	.29	<.05	<.05	<.05	<.05	<.05
11892	413920090044401	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31889	412421090334501	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50101	394212090344901	04-01-02	<.05	.41	.06	<.05	<.05	<.05	<.05
50227	400022090522301	04-01-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20207	421943088160501	04-02-02	<.05	1.56	.45	<.05	<.05	<.05	<.05
45081	400836088185101	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47687	401217088220301	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11363	413328089274501	04-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
71531	383124088135401	04-16-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50395	391411090072001	04-22-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20297	420947087561801	04-23-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20447	413337088055501	04-23-02	<.05	.21	.06	<.05	<.05	<.05	<.05
50298	401930090361701	04-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50383	403758089370801	04-29-02	<.05	.45	.22	<.05	<.05	<.05	<.05
11367	412232089275101	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11495	412030089001901	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11600	411529089105701	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20180	422322088140901	05-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
22040	412143088254901	05-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00276	421359088323201	05-20-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11560	415027089175501	05-20-02	<.05	2.32	<.05	<.05	<.05	<.05	<.05
00572	393324088363301	05-21-02	<.05	1.59	.28	<.05	<.05	<.05	<.05
50237	392439089262001	05-21-02	<.05	7.24	2.95	<.05	<.05	<.05	<.05
52062	394338090542001	06-05-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20613	415839088113901	06-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50351	404511090004001	06-11-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20442	412854087503501	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47573	403551088021302	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11557	414955089291901	06-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11629	421656089031301	06-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20029	420727088153901	06-24-02	<.05	.05	<.05	<.05	<.05	<.05	<.05
11570	414122088585401	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11943	415509089032801	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20766	414945088115101	07-01-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50003	395106089432801	07-02-02	<.05	.70	.15	<.05	<.05	<.05	<.05
60058	385235090072601	07-02-02	<.05	.34	.18	<.05	<.05	<.05	<.05
50051	404126089305001	07-17-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11707	420608089501401	07-29-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11514	410931088384401	07-30-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20328	413117087481701	08-06-02	<.05	.20	.12	<.05	<.05	<.05	<.05
20389	413234087513401	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
20436	412015087472301	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31701	411129090225701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31820	411537090363701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
31930	413003090252401	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60089	384417090005201	08-14-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11706	420614089500101	08-19-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11778	420739089132901	08-19-02	<.05	.09	<.05	<.05	<.05	<.05	<.05
00546	422448088041901	08-27-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47501	404533088173901	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47578	403059088041202	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
47586	404247087434701	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
40013	394343088281801	09-03-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50238	392438089262101	09-04-02	<.05	.70	.10	<.05	<.05	<.05	<.05
52095	392422089411901	09-04-02	<.05	.05	<.05	<.05	<.05	<.05	<.05
50064	404305089283501	09-09-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
01233	421234088002501	09-16-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
60171	380805089594701	09-18-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
00140	392154089413401	09-23-02	<.05	.45	.07	<.05	<.05	<.05	<.05
11419	414608088375201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
11456	413528088552101	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
22073	411436087384801	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05
50138	405525089452201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05	<.05

MISCELLANEOUS GROUND-WATER QUALITY HERBICIDES IN SOURCE-WATER AQUIFERS TAPPED BY PUBLIC-SUPPLY WELLS IN ILLINOIS-6

				PROPA-	PROPA-
			PROPA-	CHLOR,	CHLOR,	PROPA-	SIMA-	TER-
IEPA			CHLOR,	ESA,	OA,	ZINE,	ZINE,	BUTRYN,
WELL	USGS	SAMPLE	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-
NUMBER	STATION NUMBER	DATE	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED
			(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)	(UG/L)
			(04024)	(62766)	(62767)	(38535)	(04035)	(38888)
47583	403143088054701	10-09-01	<0.05	--	--	<0.05	<0.05	<0.05
00823	411447087513101	10-10-01	<.05	--	--	<.05	<.05	<.05
20458	412603087452601	10-10-01	<.05	--	--	<.05	<.05	<.05
50060	403432089380901	10-15-01	<.05	--	--	<.05	<.05	<.05
60053	383932090012601	10-16-01	<.05	--	--	<.05	<.05	<.05
11782	415551088575201	10-23-01	<.05	--	--	<.05	<.05	<.05
31409	404418089011802	10-23-01	<.05	--	--	<.05	<.05	<.05
50055	403116089251401	10-30-01	<.05	--	--	<.05	<.05	<.05
50057	403404089390701	10-30-01	<.05	--	--	<.05	<.05	<.05
20250	421433088002701	10-31-01	<.05	--	--	<.05	<.05	<.05
00602	414320089201301	11-07-01	<.05	--	--	<.05	<.05	<.05
11470	413654088475601	11-07-01	<.05	--	--	<.05	<.05	<.05
11678	421256088593801	11-07-01	<.05	--	--	<.05	<.05	<.05
50308	401754090032001	11-13-01	<.05	--	--	<.05	<.05	<.05
00366	421840088033001	11-20-01	<.05	--	--	<.05	<.05	<.05
02305	422225088102501	11-20-01	<.05	--	--	<.05	<.05	<.05
20357	412608088121401	11-21-01	<.05	--	--	<.05	<.05	<.05
47561	404625087335301	11-27-01	<.05	--	--	<.05	<.05	<.05
01118	400111090312502	12-04-01	<.05	<0.05	<0.05	<.05	<.05	<.05
11509	411928089073001	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05
47518	410002088313401	12-04-01	<.05	<.05	<.05	<.05	<.05	<.05
20152	422231088221101	12-09-01	<.05	<.05	<.05	<.05	<.05	<.05
20141	421222088152701	12-09-01	<.05	<.05	<.05	<.05	<.05	<.05
11891	422931089473201	12-11-01	<.05	<.05	<.05	<.05	<.05	<.05
20330	413137088011901	12-11-01	<.05	<.05	<.05	<.05	<.05	<.05
50251	400623089361201	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05
50376	403737089195401	12-12-01	<.05	<.05	<.05	<.05	<.05	<.05
50094	404417090541502	12-18-01	<.05	<.05	<.05	<.05	<.05	<.05
47819	385946088020701	12-19-01	<.05	<.05	<.05	<.05	<.05	<.05
50224	394605089155301	01-09-02	<.05	<.05	<.05	<.05	<.05	<.05
52120	394557090361601	01-09-02	<.05	<.05	<.05	<.05	<.05	<.05
20285	421803087554801	01-14-02	<.05	<.05	<.05	<.05	<.05	<.05
47532	404532088111201	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05
47551	404614087512502	01-15-02	<.05	<.05	<.05	<.05	<.05	<.05
00757	372000088431001	01-22-02	<.05	<.05	<.05	<.05	<.05	<.05
20700	415410088034301	01-23-02	<.05	<.05	<.05	<.05	<.05	<.05
31307	410134089244503	01-29-02	<.05	<.05	<.05	<.05	<.05	<.05
31428	405404089022301	01-29-02	<.05	<.05	<.05	<.05	<.05	<.05
11562	415035089175901	02-05-02	<.05	<.05	<.05	<.05	<.05	<.05
11636	421611089031101	02-05-02	<.05	<.05	<.05	<.05	<.05	<.05
11406	415552088465601	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05
11438	413805088405102	02-06-02	<.05	<.05	<.05	<.05	<.05	<.05
20497	415134088075001	02-11-02	<.05	<.05	<.05	<.05	<.05	<.05
47692	395411087485701	02-19-02	<.05	<.05	<.05	<.05	<.05	<.05
60127	381238090160001	02-25-02	<.05	<.05	<.05	<.05	<.05	<.05
00251	391251087393801	03-04-02	<.05	<.05	<.05	<.05	<.05	<.05
47811	390644087391802	03-04-02	<.05	<.05	<.05	<.05	<.05	<.05
11327	411722089221201	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05
11347	412534089215601	03-05-02	<.05	<.05	<.05	<.05	<.05	<.05
11904	414305089550901	03-06-02	<.05	<.05	<.05	<.05	<.05	<.05
00795	420559088322101	03-11-02	<.05	<.05	<.05	<.05	<.05	<.05
01416	394953090331202	03-12-02	<.05	<.05	<.05	<.05	<.05	<.05
47725	395640088515501	03-12-02	<.05	<.05	<.05	<.05	<.05	<.05
45155	392418087392101	03-18-02	<.05	<.05	<.05	<.05	<.05	<.05
11892	413920090044401	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05
31889	412421090334501	03-19-02	<.05	<.05	<.05	<.05	<.05	<.05
50101	394212090344901	04-01-02	<.05	<.05	<.05	<.05	<.05	<.05
50227	400022090522301	04-01-02	<.05	<.05	<.05	<.05	<.05	<.05
20207	421943088160501	04-02-02	<.05	<.05	<.05	<.05	<.05	<.05
45081	400836088185101	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05
47687	401217088220301	04-08-02	<.05	<.05	<.05	<.05	<.05	<.05
11363	413328089274501	04-09-02	<.05	<.05	<.05	<.05	<.05	<.05
71531	383124088135401	04-16-02	<.05	<.05	<.05	<.05	<.05	<.05
50395	391411090072001	04-22-02	<.05	<.05	<.05	<.05	<.05	<.05
20297	420947087561801	04-23-02	<.05	<.05	<.05	<.05	<.05	<.05
20447	413337088055501	04-23-02	<.05	<.05	<.05	<.05	<.05	<.05
50298	401930090361701	04-29-02	<.05	<.05	<.05	<.05	<.05	<.05
50383	403758089370801	04-29-02	<.05	<.05	<.05	<.05	<.05	<.05
11367	412232089275101	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05
11495	412030089001901	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05
11600	411529089105701	04-30-02	<.05	<.05	<.05	<.05	<.05	<.05
20180	422322088140901	05-14-02	<.05	<.05	<.05	<.05	<.05	<.05
22040	412143088254901	05-14-02	<.05	<.05	<.05	<.05	<.05	<.05
00276	421359088323201	05-20-02	<.05	<.05	<.05	<.05	<.05	<.05
11560	415027089175501	05-20-02	<.05	<.05	<.05	<.05	<.05	<.05
00572	393324088363301	05-21-02	<.05	.10	<.05	<.05	<.05	<.05
50237	392439089262001	05-21-02	<.05	<.05	<.05	<.05	<.05	<.05
52062	394338090542001	06-05-02	<.05	<.05	<.05	<.05	<.05	<.05
20613	415839088113901	06-11-02	<.05	<.05	<.05	<.05	<.05	<.05
50351	404511090004001	06-11-02	<.05	<.05	<.05	<.05	<.05	<.05
20442	412854087503501	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05
47573	403551088021302	06-17-02	<.05	<.05	<.05	<.05	<.05	<.05
11557	414955089291901	06-18-02	<.05	<.05	<.05	<.05	<.05	<.05
11629	421656089031301	06-18-02	<.05	<.05	<.05	<.05	<.05	<.05
20029	420727088153901	06-24-02	<.05	<.05	<.05	<.05	<.05	<.05
11570	414122088585401	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05
11943	415509089032801	06-25-02	<.05	<.05	<.05	<.05	<.05	<.05
20766	414945088115101	07-01-02	<.05	<.05	<.05	<.05	<.05	<.05
50003	395106089432801	07-02-02	<.05	<.05	<.05	<.05	<.05	<.05
60058	385235090072601	07-02-02	<.05	<.05	<.05	<.05	<.05	<.05
50051	404126089305001	07-17-02	<.05	<.05	<.05	<.05	<.05	<.05
11707	420608089501401	07-29-02	<.05	<.05	<.05	<.05	<.05	<.05
11514	410931088384401	07-30-02	<.05	<.05	<.05	<.05	<.05	<.05
20328	413117087481701	08-06-02	<.05	<.05	<.05	<.05	<.05	<.05
20389	413234087513401	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05
20436	412015087472301	08-07-02	<.05	<.05	<.05	<.05	<.05	<.05
31701	411129090225701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05
31820	411537090363701	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05
31930	413003090252401	08-13-02	<.05	<.05	<.05	<.05	<.05	<.05
60089	384417090005201	08-14-02	<.05	<.05	<.05	<.05	<.05	<.05
11706	420614089500101	08-19-02	<.05	<.05	<.05	<.05	<.05	<.05
11778	420739089132901	08-19-02	<.05	<.05	<.05	<.05	<.05	<.05
00546	422448088041901	08-27-02	<.05	<.05	<.05	<.05	<.05	<.05
47501	404533088173901	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05
47578	403059088041202	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05
47586	404247087434701	08-28-02	<.05	<.05	<.05	<.05	<.05	<.05
40013	394343088281801	09-03-02	<.05	<.05	<.05	<.05	<.05	<.05
50238	392438089262101	09-04-02	<.05	<.05	<.05	<.05	<.05	<.05
52095	392422089411901	09-04-02	<.05	<.05	<.05	<.05	<.05	<.05
50064	404305089283501	09-09-02	<.05	<.05	<.05	<.05	<.05	<.05
01233	421234088002501	09-16-02	<.05	<.05	<.05	<.05	<.05	<.05
60171	380805089594701	09-18-02	<.05	<.05	<.05	<.05	<.05	<.05
00140	392154089413401	09-23-02	<.05	<.05	<.05	<.05	<.05	<.05
11419	414608088375201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05
11456	413528088552101	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05
22073	411436087384801	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05
50138	405525089452201	09-24-02	<.05	<.05	<.05	<.05	<.05	<.05

a - Minor light tan, clay-sized particulates on filter media.
b - Black clay-sized particulates on filter media.
c - Minor light brown, clay-sized particulates on filter media.
d - Minor light gray-to-brown, clay-sized particulates on filter media.
e - Tan-to-orange, clay-sized particulates on filter media.
f - Light tan, clay-sized particulates on filter media.