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Nontidal Surface-Water Quality Information
Tab-delimited ASCII Files
(Files were compressed using the GNU gzip utility)
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Site Locations File Description
Water-Quality Concentration Data File Description
Water-Quality Load Data File Description
Download Water-Quality Site Locations Within:
Chesapeake Bay watershed (1,276 sites):
Uncompressed
(141,016Kb)
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Compressed
(45,295Kb)
New York (19 sites):
Uncompressed
(4,267Kb)
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Compressed
(1,874Kb)
Pennsylvania (287 sites):
Uncompressed
(34,381Kb)
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Compressed
(10,543Kb)
Maryland (293 sites):
Uncompressed
(34,206Kb)
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Compressed
(11,770Kb)
Delaware (6 sites):
Uncompressed
(2,843Kb)
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Compressed
(1,371Kb)
West Virginia (28 sites):
Uncompressed
(5,298Kb)
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Compressed
(2,318Kb)
Virginia (620 sites):
Uncompressed
(68,654Kb)
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Compressed
(21,669Kb)
District of Columbia (23 sites):
Uncompressed
(4,706Kb)
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Compressed
(1,894Kb)
Download Water-Quality Concentration Data (1972 - 1996) For Sites Located Within:
New York (1,092 records):
Uncompressed
(161,635Kb)
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Compressed
(33,682Kb)
Pennsylvania (40,296 records):
Uncompressed
(5,801,308Kb)
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Compressed
(1,156,636Kb)
Maryland (41,296 records):
Uncompressed
(5,691,576Kb)
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Compressed
(975,177Kb)
Delaware (680 records)
Uncompressed
(92,409Kb)
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Compressed
(15,191Kb)
West Virginia (4,747 records):
Uncompressed
(637,061Kb)
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Compressed
(105,323Kb)
Virginia (75,618 records):
Uncompressed
(10,642,245Kb)
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Compressed
(1,730,416Kb)
District of Columbia (2,540 records):
Uncompressed
(342,176Kb)
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Compressed
(55,860Kb)
Download Water-Quality Load Data (1972 - 1996) For Sites Located Within:
New York (4 sites):
Uncompressed
(13,226Kb)
Pennsylvania (51 sites):
Uncompressed
(233,673Kb)
Maryland (17 sites):
Uncompressed
(124,286Kb)
West Virginia (3 sites):
Uncompressed
(12,372Kb)
Virginia (17 sites):
Uncompressed
(58,919Kb)
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