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Plants facing new discharge limits — by state and pollutant

In Virginia, for Zinc, total recoverable: 7 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Aug 1, 2027 and Oct 1, 2030 (12 limits); 2 of them reported a median above that limit between Oct 1, 2025 and Sep 30, 2026. EPA's file of Oct 16, 2026.

By state: all · OH 10 · VA 7 · IN 5 · NJ 5 · WV 4 · AR 2 · CA 1 · ID 1 · MO 1

By pollutant: all · Nitrogen, ammonia total [as N] 33 · Copper, total recoverable 10 · Zinc, total recoverable 7 · Chlorine, total residual 2 · TU Static Renewal 7-Day Chronic Ceriodaphnia dubia 2 · TU Static Renewal 7-Day Chronic Pimphales promelas 2 · Chloride [as Cl] 1 · Chlorine produced oxidants 1 · pH 1 · Phosphorus, total [as P] 1 · Xylene [mix of m+o+p] 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
Lyon Shipyard & Fabrication, LLCVA0089168VAIndustrial—Zinc, total recoverablemaximum 130 ug/L, newApr 1, 2029533 ug/L (3 values)4.1×
Metro Machine Corp.VA0073091VAIndustrial—Zinc, total recoverablemaximum 180 ug/L, newJul 1, 20291220 ug/L (3 values)6.78×
King George County Service AuthorityVA0070106VASewage plant.12 MGDZinc, total recoverablemonthly average 48 ug/L, newAug 1, 2027under 3 values—
King George County Service AuthorityVA0070106VASewage plant.12 MGDZinc, total recoverableweekly average 48 ug/L, newAug 1, 2027under 3 values—
King George County Service AuthorityVA0089338VASewage plant.375 MGDZinc, total recoverablemonthly average 109 ug/L, newNov 1, 2027under 3 values—
King George County Service AuthorityVA0089338VASewage plant.375 MGDZinc, total recoverableweekly average 109 ug/L, newNov 1, 2027under 3 values—
Colonna's Ship Yard, IncorporatedVA0053813VAIndustrial—Zinc, total recoverablemaximum 130.2 ug/L, newDec 1, 202959 ug/L (11 values)0.453×
National Aeronautics and Space Administration (NASA)VA0024741VAFederal—Zinc, total recoverablemaximum 81 ug/L, newJan 1, 2030under 3 values—
National Aeronautics and Space Administration (NASA)VA0024741VAFederal—Zinc, total recoverablemaximum 81 ug/L, newJan 1, 2030under 3 values—
U.S. NavyVA0079928VAIndustrial—Zinc, total recoverablemaximum 130 ug/L, newOct 1, 2030under 3 values—
U.S. NavyVA0079928VAIndustrial—Zinc, total recoverablemaximum 130 ug/L, newOct 1, 2030under 3 values—
U.S. NavyVA0079928VAIndustrial—Zinc, total recoverablemaximum 130 ug/L, newOct 1, 2030under 3 values—

Each limit is one EPA's ICIS-NPDES file holds on the permit's current version with a begin date after today, enforceable and numeric, either on a parameter the outfall was never limited on (new) or lower than the limit in force (tighter). Today's median is the plant's own reported values for the same outfall, statistic and unit between Oct 1, 2025 and Sep 30, 2026, with how many; none is shown where most were below a detection limit. Read the permit before relying on a value.

Sell to these plants? The list for your states every week, with every plant over a limit on your pollutant, as a spreadsheet, by API and by email when a new one appears: ask for the plant list, or write to info@passage-data.com. What a seller gets.

For programs and AI agents: a state's permits with these limits as JSON at /api/v1/permits?state=VA&upcoming=true, narrowed with &facility_type=potw or &min_flow_mgd=1; the whole list at /dmr/data/upcoming.json; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt

From EPA's ECHO data, not the permit document itself: your permit is the final word. All states