Charles River Watershed Association - 1999 Monthly Water Quality Sampling Data

Symposium on Water Resources and the World Wide Web
Seattle, Washington, December 5-9, 1999

Site #	Description	Town	River mile	1/19/99		2/16/99		3/9/99		4/21/99		5/18/99		6/15/99		7/20/99		8/17/99
35CS	Central Street Bridge	Milford	3.5	80		90		410		580		1020		4900		17800		2400
35CD	Discharge Pipe @ Central St	Milford	3.5	90		6600		2400		4000		1240		39000		75000		15000
35C2	2nd Discharge Pipe @ Central St	Milford	3.5			70				2300		30		500000		36000		42000
59CS	Mellen St. Bridge	Bellingham	5.9	1900		120		250	(a)	550		240		430		17400
90CS	Rt. 126, N. Main St.	Bellingham	9.0	310		10		10		13	(a)	60		160		3700		70

13CS	Maple St. Bridge	Bellingham	12.9	90		<10		<10		20		55	(a)	240		8500		250
165S	Shaw St. Bridge	Franklin	16.5	180		40		<10		<10		170		425	(a)	7800
199S	Populatic Pond Boat Launch	Norfolk	19.9							20		60		3300		2100	(a)	10
229S	Rt. 115, Baltimore St.	Norfolk/Millis	22.9	2950	(a)	1700		6000		20		1500		80		280		50	(a)
267S	Dwight St. Bridge	Millis	26.7							10		80		90		290		50

269T	Causeway St. Stop River	Medfield	26.9			<10	(a)	10		20		80		1400		3600		130
290S	Old Bridge St.	Medfield	29.0	330		210		500	(a)	10		50		40		140		70
318S	Rt. 27 Bridge	Medfield	31.8	2400		180		240		15	(a)	<10		150		30		70
343S	Farm Rd./Bridge St.	Sherborn/Dover	34.3															<10
378S	S. Natick Dam	Natick	37.8	2000		100		70		20		20	(a)	240		200		220

400S	Charles River Road Bridge	Dover	40.0	1200		10		20		<10		30		2100		30		380
447S	Dover Gage	Dover	44.7							20		10		80	(a)	70		50
484S	Dedham Medical Center	Dedham	48.4	1500		40		70		<10		40		220		1090	(a)	30
521S	Ames St. Bridge	Dedham	52.1			10		30		10		70		60		30		20	(a)
534S	Rt. 109 Bridge	Dedham	53.4	2100		10		<10		<10		70		700		400		150

567S	Nahanton Park	Newton	56.7	1800		<10		50		<10		10				30		70
591S	Rt. 9 Gaging Station	Newton	59.1					<10		20		40		14000		4500		540
609S	Washington St. Hunnewell Bridge	Wellesley	60.9	1300	(a)	<10		50		10		70		1900		2300		380
621S	Leo J. Martin Golf Course/Park Rd.	Weston	62.1	2000		13	(a)	40		10		80		280		1700		570
635S	2391 Commonwealth Ave.	Newton	63.5			10		30	(a)	10		80		220		150		450

648S	Lakes Region	Waltham	64.8							20	(a)	10		200		40		260
662S	Moody St. Bridge	Waltham	66.2	280		20		20		<10		25	(a)	460		1900		710
675S	North St.	Waltham	67.6	380		50		20		<10		110		610		2000		320
012S	Watertown Dam Footbridge	Watertown	69.3	490		20		40		20		270		770	(a)	7300		720
700S	N. Beacon St.	Newton	70.9	350		200		50		80		240		5500		260	(a)	330

715S	Arsenal St.	Brighton	71.5	930		70				170		200		4400		2100		670	(a)
729S	Eliot Bridge	Cambridge	72.9	800		130		120		30		10		90		1040		530
743S	Western Ave	Cambridge	74.3			90		90		<10		<10		120		110
760S	Muddy River at Comm. Ave.	Boston	76.0	3600		490		180		10		100		850				170
763S	Mass. Ave. at Harvard Bridge	Boston	76.3			80		130		<10		20		50		280		390

773S	Longfellow Bridge	Boston	77.3	3750	(a)	<10		120		30				300		10		120
784S	New Charles River Dam	Boston	78.4	510		105	(a)			30		10		10		60		60

QA/QC Samples
	Equipment Blank			<1.00		<1.00		<1.00		<10		<1.00		<1.00		<1.00		<1.00
	Site No.			318S		012S		534S		567S		591S		609S		621S		267S
	Equipment Blank			<1.00								<1.00		<1.00				<1.00
	Site No.			700S								729S		743S				635S

Rainfall At Logan International Airport (inches)
	3 Days Prior to Sampling			0		0.05		0.27		0.04		0		0		0		0.49
	2 Days Prior to Sampling			0		trace		0.05		trace		0		trace		0		.0.12
	1 Day Prior to Sampling			0.71		0		0		0.03		0.16		0		0.49		0
	Day of Sampling			0		0		0		trace		0.21		trace		0		0

(a) Average of duplicates