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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) | Compressed (45,295Kb)
• New York (19 sites): Uncompressed (4,267Kb) | Compressed (1,874Kb)
• Pennsylvania (287 sites): Uncompressed (34,381Kb) | Compressed (10,543Kb)
• Maryland (293 sites): Uncompressed (34,206Kb) | Compressed (11,770Kb)
• Delaware (6 sites): Uncompressed (2,843Kb) | Compressed (1,371Kb)
• West Virginia (28 sites): Uncompressed (5,298Kb) | Compressed (2,318Kb)
• Virginia (620 sites): Uncompressed (68,654Kb) | Compressed (21,669Kb)
• District of Columbia (23 sites): Uncompressed (4,706Kb) | Compressed (1,894Kb)

Download Water-Quality Concentration Data (1972 - 1996) For Sites Located Within:

• New York (1,092 records): Uncompressed (161,635Kb) | Compressed (33,682Kb)
• Pennsylvania (40,296 records): Uncompressed (5,801,308Kb) | Compressed (1,156,636Kb)
• Maryland (41,296 records): Uncompressed (5,691,576Kb) | Compressed (975,177Kb)
• Delaware (680 records) Uncompressed (92,409Kb) | Compressed (15,191Kb)
• West Virginia (4,747 records): Uncompressed (637,061Kb) | Compressed (105,323Kb)
• Virginia (75,618 records): Uncompressed (10,642,245Kb) | Compressed (1,730,416Kb)
• District of Columbia (2,540 records): Uncompressed (342,176Kb) | 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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