UNIV.OF MARYLAND AT COLLEGE PK
NewNPDES ID: MD0063801
Copper exceedances represent heavy metal contamination that bioaccumulates in aquatic organisms and poses direct toxicity risks to fish, macroinvertebrates, and benthic communities in the Piedmont Uplands' sensitive headwater streams and tributaries. The repeated violations ranging from 33% to 94% above permit limits threaten the region's characteristic warm-water fisheries, mussel beds, and riparian ecosystems that depend on low metal concentrations, while copper accumulation in sediments and food webs will impair reproduction and survival in species already stressed by urban stormwater runoff common to the Piedmont landscape. Continued non-compliance will degrade water quality in receiving streams and downstream reservoirs, reducing aquatic biodiversity and limiting recreational and municipal water use throughout the watershed.
Violations
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
40% over limit
10/01/2025 · S
Copper, total [as Cu]
147% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
Copper, total [as Cu]
33% over limit
10/01/2024 · S
Copper, total [as Cu]
94% over limit
01/01/2025 · S
Copper, total [as Cu]
36% over limit
04/01/2025 · S
Copper, total [as Cu]
86% over limit
07/01/2025 · S
Copper, total [as Cu]
86% over limit
10/01/2025 · S
Copper, total [as Cu]
169% over limit
01/01/2026 · S
First flagged
June 25, 2026 (today)
Last confirmed
June 25, 2026 (today)