Highway 9 Bridge

Highway 9 Bridge
	METHOD	UNITS
SAMPLE NUMBER			1201	1202	1203	1204	1205	1206	1207	1208	1209	1210
DATE MM/DD/YY			03/04/97	03/11/97	03/18/97	06/26/97	10/21/97	10/22/97	10/23/97	10/28/97	11/12/97	11/25/97
TIME			03:00 PM	02:00 PM	03:15 PM	10:30 AM	10:37 AM	12:30 PM	11:15 AM	10:25 AM	12:45 PM	10:05 AM
TEMPERATURE	Thermometer	Celcius	14	15	15.5	27
pH	Glass Electrode		6.96	7.22	7.27	7.11
CONDUCTIVITY	Resistance	us/cm	113.7	111.2	118.3	128.7
DISSOLVED OXYGEN	Meter	mg/L	10	8	8	8.6	12.4	13.1	13.5	13.8	12.4	9.7
SUSPENDED SOLIDS	Gravimetric	mg/L	8.8	14.4	6.4	8.55
TOT. DISOLV. SOLIDS	Evaporation	mg/L	73.2	104	70	78.4
CHLORIDE IONS	Potentiometric Titration	mg/L	10	9.4	3.4	12.5
NITRATE IONS	Spectrophotometric	mg/L N				0			4
PHOSPHATE IONS	Spectrophotometric	mg/L	<0.02	<0.02	0.192	<0.02			1.6
SULFATE IONS	Turbidimetric	mg/L	136	152	148	66
SULFIDE IONS	Spectrophotometric	mg/L	0.01	<.01	>.01
HARDNESS	Complexometric	mg/L	27.4	25.9	20.1	25.1
FECAL COLIFORMS	Membrane filtration	cfu/100 ml					2100	600			850
BOD	BOD5	mg/L				1.6	4.9	4.1	1.7	8.6	6.8	3.7
ELEMENTAL TESTING	ICP	PPM
Na			11.6			15.4
Si			126			4.2
Ca			5.8			4.4
K			2.3			2.7
Mg			2.3			2.5
S			4.3			5.8
Fe			0.3			<0.1
Ba			<0.1			<0.1
Al			0.3			<0.1
2-4D	IMMUNO ASSAY	PPB							0.0