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Plants facing new discharge limits — by state and pollutant

for Nickel, total [as Ni]: 6 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Jul 1, 2029 (16 limits); 1 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: TX 3 · IA 1 · NY 1 · PA 1

By pollutant: all · Nitrogen, ammonia total [as N] 526 · Chlorine, total residual 272 · Phosphorus, total [as P] 106 · E. coli 103 · Copper, total [as Cu] 85 · Copper, total recoverable 63 · Solids, total suspended 60 · Chloride [as Cl] 56 · BOD, carbonaceous [5 day, 20 C] 48 · Zinc, total [as Zn] 39 · Zinc, total recoverable 36 · BOD, 5-day, 20 deg. C 35 · pH 31 · Cyanide, free available 30 · Nitrogen, total [as N] 28 · Iron, total [as Fe] 22 · Mercury, total [as Hg] 22 · Toxicity [acute], Ceriodaphnia dubia 22 · Toxicity [acute], Pimephales promelas [Fathead Minnow] 21 · Selenium, total [as Se] 20 · Di[2-ethylhexyl] phthalate [DEHP] 19 · E. coli, MTEC-MF 19 · Mercury, total low level 19 · Toxicity [chronic], Ceriodaphnia dubia 18 · Toxicity [chronic], Pimephales promelas [Fathead Minnow] 18

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
AMPHENOL CORPORATIONNY0003824NYIndustrial, major—Nickel, total [as Ni]daily maximum 114 ug/L, newApr 1, 2028281 ug/L (11 values)2.46×
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGDNickel, total [as Ni]daily average 0.018 mg/L, tighterDec 1, 20260.0055 mg/L (6 values)0.306×
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGDNickel, total [as Ni]daily maximum 0.037 mg/L, tighterDec 1, 20260.0105 mg/L (6 values, 2 below detection)0.284×
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGDNickel, total [as Ni]daily average 0.019 mg/L, tighterDec 1, 2026under 3 values—
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGDNickel, total [as Ni]daily maximum 0.0403 mg/L, tighterDec 1, 2026under 3 values—
INTERCONTINENTAL TERMINALS COMPANY LLCTX0135593TXIndustrial—Nickel, total [as Ni]daily average 0.146 mg/L, tighterFeb 1, 20270 mg/L (5 values)0×
INTERCONTINENTAL TERMINALS COMPANY LLCTX0135593TXIndustrial—Nickel, total [as Ni]daily maximum 0.31 mg/L, tighterFeb 1, 20270 mg/L (5 values)0×
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDNickel, total [as Ni]daily maximum 17.3 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDNickel, total [as Ni]monthly average 11.1 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDNickel, total [as Ni]daily maximum 140 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDNickel, total [as Ni]monthly average 90 ug/L, newSep 1, 2027under 3 values—
KINZE MANUFACTURING, INC.IA0076881IAIndustrial—Nickel, total [as Ni]30-day average 0.1072 mg/L, newJul 1, 2028under 3 values—
KINZE MANUFACTURING, INC.IA0076881IAIndustrial—Nickel, total [as Ni]30-day average 0.1006 lb/d, newJul 1, 2028under 3 values—
KINZE MANUFACTURING, INC.IA0076881IAIndustrial—Nickel, total [as Ni]daily maximum 0.8555 mg/L, newJul 1, 2028under 3 values—
KINZE MANUFACTURING, INC.IA0076881IAIndustrial—Nickel, total [as Ni]daily maximum 0.8026 lb/d, newJul 1, 2028under 3 values—
ET GATHERING & PROCESSING LLCTX0133998TXIndustrial0 MGDNickel, total [as Ni]daily maximum 0.167 mg/L, newJul 1, 2029under 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=OH&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