07022000 DATA: Chemical and Microbiological Tables, 1999

Station list Available data
LOWER MISSISSIPPI RIVER BASIN

07022000 MISSISSIPPI RIVER AT THEBES, IL

LOCATION.--Lat 37°13'00", long 89°27'50", in NW 1/4 sec.17, T.15 S., R.3 W., Alexander County, Hydrologic Unit 07140105, near center span on downstream side of railroad bridge at Thebes, 5.0 mi downstream from Headwater Diversion Channel, and at mile 43.7 above Ohio River.

DRAINAGE AREA.--713,200 mi², approximately.

PERIOD OF RECORD.--January 1973 to current year.

PERIOD OF DAILY RECORD.--
SPECIFIC CONDUCTANCE: October 1974 to September 1981.
WATER TEMPERATURE: October 1974 to September 1981.
SUSPENDED-SEDIMENT: October 1980 to current year.

REMARKS.--NASQAN station January 1973 to September 1986. Illinois Environmental Protection Agency station October 1986 to September 1994 (during the period, samples were analyzed by the Illinois EPA). Re-established as a NASQAN station October 1994 to current year. Sediment records good except for estimated daily load Jan. 2-17, which are fair.

EXTREMES FOR PERIOD OF DAILY RECORD.--
SPECIFIC CONDUCTANCE: Maximum daily, 705 microsiemens per centimeter, Aug. 5-7, 1980; minimum daily, 272 microsiemens per centimeter, Apr. 6, 1979.
WATER TEMPERATURE: Maximum daily, 31.5 °C, July 10 and 11, 1975, and July 17, 1977; minimum daily, 0.0 °C, on several days during winter periods.
SUSPENDED-SEDIMENT CONCENTRATONS: Maximum daily mean, 3,890 mg/L, Dec. 22, 1985; minimum daily mean, 13 mg/L, Jan. 28, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 6,280,000 tons, Mar. 1, 1985; minimum daily, 2,530 tons, Jan. 28, 1981.

EXTREMES FOR CURRENT YEAR.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 1,490 mg/L, April 20; minimum daily mean, 112 mg/L, Sept. 5.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 1,940,000 tons, Apr. 21; minimum daily, 39,600 tons, Sept. 23.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
		DIS-	UV	UV		OXYGEN,	PH			E. COLI	COLI-
		CHARGE,	ABSORB-	ABSORB-		DIS-	WATER	SPE-		WATER	FORM,
		INST.	ANCE	ANCE		SOLVED	WHOLE	CIFIC		WHOLE	FECAL,
		(CUBIC	254 nm,	280 nm,	OXYGEN,	(PER-	FIELD	CON-	TEMPER-	TOTAL	0.7
		FEET	WTR FLT	WTR FLT	DIS-	CENT	(STAND-	DUCT-	ATURE	UREASE	mm-MF
DATE	TIME	PER	(UNITS	(UNITS	SOLVED	SATUR-	ARD	ANCE	WATER	(COL /	(COL /
		SECOND)	/cm)	/cm)	(mg/L)	ATION)	UNITS)	(mS/cm)	(DEG C)	100 mL)	100 mL)
		(00061)	(50624)	(61726)	(00300)	(00301)	(00400)	(00095)	(00010)	(31633)	(31625)
OCT
21...	1405	332000	--	--	8.1	84	7.98	473	18.3	K210	K210
DEC
14...	1315	224000	--	--	10.7	88	7.92	470	7.9	1300	1100
JAN
27...	1545	321000	--	--	13.8	100	7.93	482	2.7	1000	1300
FEB
22...	1425	270000	--	--	13.3	103	7.87	605	4.9	160	240
MAR
10...	1505	254000	.113	--	12.7	101	7.70	630	4.7	560	980
29...	1500	220000	.088	--	12.6	108	8.08	583	9.9	62	88
APR
21...	1420	490000	.149	--	9.6	90	7.72	430	12.1	1000	1400
29...	1035	512000	.136	--	8.9	84	7.65	459	13.6	500	420
MAY
20...	0955	450000	.127	--	7.2	77	7.71	504	19.1	1400	K360
25...	1455	488000	.138	--	7.8	84	7.82	470	19.6	420	620
JUN
09...	1515	463000	.189	--	6.7	82	7.97	498	26.0	200	140
23...	1425	378000	.385	--	7.5	88	7.98	501	23.9	K40	260
JUL
26...	1430	230000	.123	--	7.5	101	7.78	601	31.5	K35	48
AUG
11...	1405	222000	.143	--	7.5	95	7.77	565	28.2	310	280
SEP
01...	1345	158000	.140	.101	8.2	101	7.99	607	26.9	K20	62

K-Results based on colony count outside the acceptable range (non-ideal colony count).

	STREP-	ALKA-	ALKA-	BICAR-	CAR-		HARD-
	TOCOCCI	LINITY	LINITY	BONATE	BONATE	HARD-	NESS		MAGNE-	POTAS-
	FECAL,	WAT DIS	WAT DIS	WATER	WATER	NESS	NONCARB	CALCIUM	SIUM,	SIUM,	SODIUM,
	KF AGAR	FIX END	TOT IT	DIS IT	DIS IT	TOTAL	DISSOLV	DIS-	DIS-	DIS-	DIS-
	(COL	FIELD	FIELD	FIELD	FIELD	(mg/L	FLD. as	SOLVED	SOLVED	SOLVED	SOLVED
DATE	PER	CaCO₃	(mg/L as (	mg/L as (	mg/L as	as	CaCO₃	(mg/L	(mg/L	(mg/L	(mg/L
	100 mL)	(mg/L)	CaCO₃)	HCO₃)	CO₃)	CaCO₃)	(mg/L)	as Ca)	as Mg)	as K)	as Na)
	(31673)	(39036)	(39086)	(00453)	(00452)	(00900)	(00904)	(00915)	(00925)	(00935)	(00930)
OCT
21...	K110	150	152	185	0	190	40	48	17	4.7	21
DEC
14...	560	120	122	150	0	200	73	50	17	4.3	24
JAN
27...	7800	130	134	164	0	190	57	48	18	4.4	24
FEB
22...	170	160	162	197	0	230	64	58	20	3.7	24
MAR
10...	2200	170	169	208	0	240	65	60	21	3.5	28
29...	46	160	167	204	0	230	58	54	22	3.5	34
APR
21...	510	120	125	152	0	92	--	24	7.8	.91	9.4
29...	660	140	142	174	0	200	62	54	17	2.5	18
MAY
20...	120	150	149	182	0	210	60	54	18	3.2	18
25...	600	130	132	162	0	200	70	52	18	2.5	18
JUN
09...	62	160	156	190	0	210	50	53	18	2.8	21
23...	210	150	154	188	0	220	61	55	19	3.1	21
JUL
26...	K8	160	164	202	0	240	73	59	22	3.2	31
AUG
11...	120	150	156	190	0	220	68	56	20	4.8	28
SEP
01...	K2	160	169	205	0	230	64	57	21	1.3	36

					NITRO-	NITRO-	NITRO-	NITRO-	NITRO-		PHOS-
	CHLO-	FLUO-	SILICA,		GEN,	GEN,AM-	GEN,AM-	GEN,	GEN,	PHOS-	PHORUS
	RIDE,	RIDE,	DIS-	SULFATE	AMMONIA	MONIA +	MONIA +	NO₂+NO₃	NITRITE	PHORUS	ORTHO,
	DIS-	DIS-	SOLVED	DIS-	DIS-	ORGANIC	ORGANIC	DIS-	DIS-	DIS-	DIS-
	SOLVED	SOLVED	(mg/L	SOLVED	SOLVED	DIS.	TOTAL	SOLVED	SOLVED	SOLVED	SOLVED
DATE	(mg/L	(mg/L	as	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L
	as Cl)	as F)	SiO2)	as SO₄)	as N)	as N)	as N)	as N)	as N)	as P)	as P)
	(00940)	(00950)	(00955)	(00945)	(00608)	(00623)	(00625)	(00631)	(00613)	(00666)	(00671)
OCT
21...	18	.25	8.8	52	.020	.37	--	1.67	.024	.119	.116
DEC
14...	19	.21	10	65	.091	.44	.79	1.77	<.010	.109	.109
JAN
27...	24	.20	9.6	57	.176	.49	1.8	2.32	.026	.104	.099
FEB
22...	26	.23	10	62	.081	.44	.81	3.16	.024	.104	.099
MAR
10...	29	.20	9.4	73	.087	.52	1.1	2.74	.013	.092	.074
29...	38	.23	5.5	72	<.020	.42	.99	2.61	.010	.043	.020
APR
21...	17	.23	6.3	50	.028	.48	2.5	3.03	.111	.090	.034
29...	17	.27	10	51	<.020	.42	1.6	3.75	.056	.103	.067
MAY
20...	18	.32	9.8	58	<.020	.72	.67	3.56	.047	.106	.026
25...	18	.26	10	52	.024	.38	2.1	3.90	.015	.104	.092
JUN
09...	17	.27	10	56	<.020	.56	1.4	3.60	.013	.122	.054
23...	18	.31	11	58	.021	.46	1.6	4.61	.018	.140	.113
JUL
26...	20	.25	8.7	92	<.020	.37	.54	3.01	.017	.126	.096
AUG
11...	19	.26	14	80	<.020	.31	1.0	2.87	<.010	.175	.149
SEP
01...	25	.27	10	100	.026	.38	.82	1.64	<.010	.145	.130

		RESIDUE		ALUM-	ANTI-			BERYL-			CHRO-
	PHOS-	AT 180		INUM,	MONY,	ARSENIC	BARIUM,	LIUM,	BORON,	CADMIUM	MIUM,
	PHORUS	DEG. C	TUR-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-
	TOTAL	DIS-	BID-	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED
DATE	(mg/L	SOLVED	ITY	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L
	as P)	(mg/L)	(NTU)	as Al)	as Sb)	as As)	as Ba)	as Be)	as B)	as Cd)	as Cr)
	(00665)	(70300)	(00076)	(01106)	(01095)	(01000)	(01005)	(01010)	(01020)	(01025)	(01030)
OCT
21...	--	289	72	--	--	2	--	--	49	--	--
DEC
14...	.313	304	58	86	<1.0	2	77	<1.0	49	<1.0	1.6
JAN
27...	.618	285	160	--	--	<1	--	--	54	--	--
FEB
22...	.222	325	37	--	--	<1	--	--	47	--	--
MAR
10...	.227	355	45	--	--	2	--	--	52	--	--
29...	.200	350	28	7.6	<1.0	1	64	<1.0	50	<1.0	11
APR
21...	1.11	273	97	--	--	1	--	--	49	--	--
29...	.659	287	200	--	--	2	--	--	92	--	--
MAY
20...	.543	310	220	--	--	1	--	--	48	--	--
25...	.805	307	63	--	--	2	--	--	90	--	--
JUN
09...	.518	321	150	--	--	2	--	--	105	--	--
23...	.628	331	160	54	1.2	2	591	<1.0	91	<1.0	<1.0
JUL
26...	.238	361	28	--	--	3	--	--	137	--	--
AUG
11...	.322	346	32	--	--	4	--	--	79	--	--
SEP
01...	.244	383	16	4.5	<1.0	4	91	<1.0	73	<1.0	<1.0

						MANGA-	MOLYB-		SELE-		STRON-
	COBALT,	COPPER,	IRON,	LEAD,	LITHIUM	NESE,	DENUM,	NICKEL,	NIUM,	SILVER,	TIUM,
	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-	DIS-
	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED	SOLVED
DATE	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L	(mg/L
	as Co)	as Cu)	as Fe)	as Pb)	as Li)	as Mn)	as Mo)	as Ni)	as Se)	as Ag)	as Sr)
	(01035)	(01040)	(01046)	(01049)	(01130)	(01056)	(01060)	(01065)	(01145)	(01075)	(01080)
OCT
21...	--	--	13	--	10	--	--	--	<1	--	209
DEC
14...	<1.0	1.8	72	<1.0	12	4.0	2.0	2.1	<1	<1.0	236
JAN
27...	--	--	130	--	8	--	--	--	1	--	197
FEB
22...	--	--	29	--	10	--	--	--	<1	--	215
MAR
10...	--	--	12	--	12	--	--	--	1	--	237
29...	<1.0	1.7	E9.0	<1.0	10	1.7	2.1	2.3	<1	<1.0	241
APR
21...	--	--	180	--	E5	--	--	--	<1	--	121
29...	--	--	120	--	11	--	--	--	2	--	212
MAY
20...	--	--	57	--	9	--	--	--	1	--	207
25...	--	--	97	--	10	--	--	--	<1	--	210
JUN
09...	--	--	53	--	9	--	--	--	1	--	220
23...	<1.0	2.6	56	<1.0	10	2.2	2.5	2.1	<1	<1.0	217
JUL
26...	--	--	65	--	20	--	--	--	1	--	280
AUG
11...	--	--	41	--	18	--	--	--	1	--	270
SEP
01...	<1.0	2.7	<10	<1.0	22	<1.0	3.6	3.3	<1	<1.0	280

E - Laboratory estimated value.

				CARBON,	2,6-DI-				METHYL	BEN-
	VANA-		CARBON,	ORGANIC	ETHYL	ACETO-	ALA-	ATRA-	AZIN-	FLUR-	BUTYL-
	DIUM,	ZINC,	ORGANIC	SUS-	ANILINE	CHLOR,	CHLOR,	ZINE,	PHOS	ALIN	ATE,
	DIS-	DIS-	DIS-	PENDED	WAT FLT	WATER	WATER,	WATER,	WAT FLT	WAT FLD	WATER,
	SOLVED	SOLVED	SOLVED	TOTAL	0.7 m	FLTRD	DISS,	DISS,	0.7 m	0.7 m	DISS,
DATE	(mg/L)	(mg/L)	(mg/L	(mg/L	GF, REC	REC	REC,	REC	GF, REC	GF, REC	REC
	as V)	as Zn)	as C)	as C)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)
	(01085)	(01090)	(00681)	(00689)	(82660)	(49260)	(46342)	(39632)	(82686)	(82673)	(04028)
OCT
21...	<10	--	4.4	1.5	<.0030	.0502	.010	.290	<.0010	<.0020	<.0020
DEC
14...	<10	2.3	7.7	2.6	<.0030	.0126	<.002	.109	<.0010	<.0020	<.0020
JAN
27...	<10	--	4.9	2.8	<.0030	.0160	<.002	.144	<.0010	<.0020	<.0020
FEB
22...	<10	--	4.0	1.3	--	--	--	--	--	--	--
MAR
10...	<10	--	3.7	1.3	<.0030	.0288	.006	.093	<.0010	<.0020	<.0020
29...	<10	3.0	4.3	1.4	<.0030	.0202	.005	.076	<.0010	<.0020	<.0020
APR
21...	<10	--	8.6	8.7	<.0030	.580	.067	2.43	<.0010	<.0020	<.0020
29...	<10	--	5.4	5.9	<.0030	.299	.026	1.30	<.0010	<.0020	<.0020
MAY
20...	<10	--	8.6	2.3	<.0030	.522	.048	2.87	<.0010	<.0020	<.0020
25...	<10	--	6.4	10	<.0030	1.09	.058	4.44	<.0010	<.0020	<.0020
JUN
09...	<10	--	6.9	5.6	<.0030	.797	.125	1.17	<.0010	<.0020	<.0020
23...	<10	14	16	>5.0	<.0030	.498	.129	1.30	<.0010	<.0020	<.0020
JUL
26...	<10	--	4.6	1.3	<.0030	.0443	.035	.834	<.0010	<.0020	<.0020
AUG
11...	<10	--	4.8	1.9	<.0030	.0259	.032	.467	<.0010	<.0020	<.0020
SEP
01...	E5	2.5	5.6	1.0	<.0030	<.0020	<.002	.210	<.0010	<.0020	<.0020

	CAR-	CARBO-				DEETHYL			DISUL-		ETHAL-
	BARYL	FURAN		CYANA-	DCPA	ATRA-			FOTON	EPTC	FLUR-
	WATER	WATER	CHLOR-	ZINE,	WATER	ZINE,	DI-	DI-	WATER	WATER	ALIN
	FLTRD	FLTRD	PYRIFOS	WATER,	FLTRD	WATER,	AZINON,	ELDRIN	FLTRD	FLTRD	WAT FLT
	0.7 m	0.7 m	DIS-	DISS,	0.7 m	DISS,	DIS-	DIS-	0.7 m	0.7 m	0.7 m
DATE	GF, REC	GF, REC	SOLVED	REC	GF, REC	REC	SOLVED	SOLVED	GF, REC	GF, REC	GF, REC
	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)
	(82680)	(82674)	(38933)	(04041)	(82682)	(04040)	(39572)	(39381)	(82677)	(82668)	(82663)
OCT
21...	<.0030	<.0030	<.0040	.0167	<.0020	E.0590	<.002	<.001	<.0170	<.0020	<.0040
DEC
14...	<.0030	<.0030	<.0040	.0105	<.0020	E.0241	<.002	<.001	<.0170	<.0020	<.0040
JAN
27...	<.0030	<.0030	<.0040	.0155	<.0020	E.0369	<.002	<.001	<.0170	<.0020	<.0040
MAR
10...	<.0030	<.0030	<.0040	<.0040	<.0020	E.0053	.004	<.001	<.0170	<.0020	<.0040
29...	<.0030	<.0030	<.0040	<.0200	<.0020	E.0271	.006	<.001	<.0170	<.0020	<.0040
APR
21...	<.0030	<.0030	<.0040	.133	<.0020	E.0337	<.002	<.001	<.0170	<.0020	<.0040
29...	<.0030	<.0030	<.0040	.0740	<.0020	E.0562	<.002	<.001	<.0170	<.0020	<.0040
MAY
20...	<.0030	<.0030	.0158	.275	<.0020	E.0888	.015	<.001	<.0170	<.0020	<.0040
25...	<.0030	<.0030	<.0040	.350	<.0020	E.126	<.002	<.001	<.0170	<.0020	<.0040
JUN
09...	<.0030	<.0100	<.0040	.0863	<.0020	E.229	<.002	<.001	<.0170	<.0020	<.0040
23...	<.0030	E.0393	<.0040	.0839	<.0020	E.315	<.002	<.001	<.0170	<.0020	<.0040
JUL
26...	<.0030	<.0030	<.0040	.0333	<.0020	E.101	<.002	<.001	<.0170	<.0020	<.0040
AUG
11...	<.0030	<.0030	<.0040	<.0200	<.0020	E.143	<.002	<.001	<.0170	<.0020	<.0040
SEP
01...	<.0030	<.0030	<.0040	<.0040	<.0020	E.0476	<.002	<.001	<.0170	<.0020	<.0040

E--Laboratory estimated value.

	ETHO-			LIN-				MOL-	NAPROP-		METHYL
	PROP			URON			METRI-	INATE	AMIDE		PARA-
	WATER	FONOFOS		WATER	MALA-	METO-	BUZIN	WATER	WATER	PARA-	THION
	FLTRD	WATER	LINDANE	FLTRD	THION,	LACHLOR	SENCOR	FLTRD	FLTRD	THION,	WAT FLT
	0.7 m	DISS	DIS-	0.7 m	DIS-	WATER	WATER	0.7 m	0.7 m	DIS-	0.7 m
DATE	GF, REC	REC	SOLVED	GF, REC	SOLVED	DISSOLV	DISSOLV	GF, REC	GF, REC	SOLVED	GF, REC
	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)
	(82672)	(04095)	(39341)	(82666)	(39532)	(39415)	(82630)	(82671)	(82684)	(39542)	(82667)
OCT
21...	<.0030	<.0030	<.004	<.0020	<.005	.142	<.004	<.0040	<.0030	<.004	<.0060
DEC
14...	<.0030	<.0030	<.004	<.0020	<.005	.041	<.004	<.0040	<.0030	<.004	<.0060
JAN
27...	<.0030	<.0030	<.004	<.0020	<.005	.040	.007	<.0040	<.0030	<.004	<.0060
MAR
10...	<.0030	<.0030	<.004	<.0020	<.005	.071	<.004	<.0040	<.0030	<.004	<.0060
29...	<.0030	<.0030	<.004	<.0020	<.005	.107	<.004	<.0040	<.0030	<.004	<.0060
APR
21...	<.0030	<.0030	<.004	<.0020	<.005	.742	.021	<.0040	<.0030	<.004	<.0060
29...	<.0030	<.0030	<.004	<.0020	<.005	.456	<.020	<.0040	<.0030	<.004	<.0060
MAY
20...	<.0030	<.0030	<.004	<.0020	<.005	.718	.016	<.0040	<.0030	<.004	<.0060
25...	<.0030	<.0030	<.004	<.0020	<.005	1.06	.024	<.0040	<.0030	<.004	<.0060
JUN
09...	<.0030	<.0030	<.004	<.0020	<.005	1.23	.029	<.0040	<.0030	<.004	<.0060
23...	<.0030	<.0030	<.004	<.0020	<.005	1.35	<.020	<.0040	<.0030	<.004	<.0060
JUL
26...	<.0030	<.0030	<.004	<.0020	<.005	.318	<.004	<.0040	<.0030	<.004	<.0700
AUG
11...	<.0030	<.0030	<.004	<.0020	<.005	.273	<.004	<.0040	<.0030	<.004	<.0060
SEP
01...	<.0030	<.0030	<.004	<.0020	<.005	.075	<.004	<.0040	<.0030	<.004	<.0060

	PEB-	PENDI-				PRO-	PRO-	PRON-		TEBU-	TER-
	ULATE	METH-	PHORATE	PRO-	PROP-	PANIL	PARGITE	AMIDE	SI-	THIURON	BACIL
	WATER	ALIN	WATER	METON,	CHLOR,	WATER	WATER	WATER	MAZINE,	WATER	WATER
	FILTRD	WAT FLT	FLTRD	WATER,	WATER,	FLTRD	FLTRD	FLTRD	WATER,	FLTRD	FLTRD
	0.7 m	0.7 m	0.7 m	DISS,	DISS,	0.7m	0.7 m	0.7 m	DISS,	0.7 m	0.7 m
DATE	GF, REC	GF, REC	GF, REC	REC	REC	GF, REC	GF, REC	GF, REC	REC	GF, REC	GF, REC
	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)
	(82669)	(82683)	(82664)	(04037)	(04024)	(82679)	(82685)	(82676)	(04035)	(82670)	(82665)
OCT
21...	<.0040	<.0040	<.0020	E.0070	<.0070	<.0040	<.0130	<.0030	E.0049	<.0200	<.0070
DEC
14...	<.0040	<.0040	<.0020	E.0041	<.0070	<.0040	<.0130	<.0030	E.0047	<.0100	<.0070
JAN
27...	<.0040	<.0040	<.0020	E.0041	<.0070	<.0040	<.0130	<.0030	.0074	<.0100	<.0070
MAR
10...	<.0040	<.0040	<.0020	E.0024	<.0070	<.0040	<.0130	<.0030	E.0038	<.0100	<.0070
29...	<.0040	<.0040	<.0020	<.0180	<.0070	<.0040	<.0130	<.0030	<.0050	<.0100	<.0070
APR
21...	<.0040	<.0040	<.0020	<.0180	<.0070	<.0040	<.0130	<.0030	.0498	<.0100	<.0070
29...	<.0040	<.0040	<.0020	<.0180	<.0070	<.0040	<.0130	<.0030	.0489	<.0100	<.0070
MAY
20...	<.0040	<.0100	<.0020	E.0075	<.0070	<.0040	<.0130	<.0030	.0942	<.0100	<.0070
25...	<.0040	<.0040	<.0020	E.0067	<.0070	<.0040	<.0130	<.0030	.0723	<.0100	<.0070
JUN
09...	<.0040	<.0040	<.0020	E.0115	<.0070	<.0040	<.0130	<.0030	.0510	<.0100	<.0070
23...	<.0040	<.0040	<.0020	E.0111	<.0070	<.0040	<.0130	<.0030	.0216	<.0100	<.0070
JUL
26...	<.0040	<.0040	<.0020	<.0180	<.0070	<.0040	<.0130	<.0030	<.0100	<.0100	<.0070
AUG
11...	<.0040	<.0040	<.0020	E.0123	<.0070	<.0040	<.0130	<.0030	<.0100	<.0100	<.0070
SEP
01...	<.0040	<.0040	<.0020	<.0180	<.0070	<.0040	<.0130	<.0030	<.0050	<.0100	<.0070

E--Laboratory estimated value.

	TER-	THIO-	TRIAL-	TRI-		PER-				SED.
	BUFOS	BENCARB	LATE	FLUR-		METHRIN		URANIUM		SUSP.
	WATER	WATER	WATER	ALIN	ALPHA	CIS		NATURAL	SEDI-	SIEVE
	FLTRD	FLTRD	FLTRD	WAT FLT	BHC	WAT FLT	P,P'	DIS-	MENT,	DIAM.
	0.7 m	0.7 m	0.7 m	0.7 m	DIS-	0.7 m	DDE	SOLVED	SUS-	% FINER
DATE	GF, REC	GF, REC	GF, REC	GF, REC	SOLVED	GF, REC	DISSOLV	(mg/L	PENDED	THAN
	(m/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	(mg/L)	as U)	(mg/L)	.062 mm
	(82675)	(82681)	(82678)	(82661)	(34253)	(82687)	(34653)	(22703)	(80154)	(70331)
OCT
21...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	508	76
DEC
14...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	2.1	314	66
JAN
27...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	589	86
FEB
22...	--	--	--	--	--	--	--	--	231	47
MAR
10...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	186	63
29...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	2.5	140	56
APR
21...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	1490	85
29...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	820	80
MAY
20...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	546	79
25...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	871	87
JUN
09...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	416	82
23...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	2.6	644	82
JUL
26...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	159	81
AUG
11...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	--	194	73
SEP
01...	<.0130	<.0020	<.0010	<.0020	<.0020	<.0050	<.0060	3.0	102	81