Passage Data · Check a report · Use it from your AI

Plants facing new discharge limits — by state and pollutant

for 4,4'-DDT: 3 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Dec 1, 2028 (10 limits); 0 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: PA 2 · TX 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
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGD4,4'-DDTdaily average 0.000908 lb/d, newDec 1, 20260 lb/d (12 values)0×
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGD4,4'-DDTdaily average 0.000011 mg/L, newDec 1, 20260 mg/L (12 values)0×
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGD4,4'-DDTdaily maximum 0.00198 lb/d, newDec 1, 20260 lb/d (12 values)0×
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGD4,4'-DDTdaily maximum 0.000024 mg/L, newDec 1, 20260 mg/L (12 values)0×
TMS INTL LLCPA0253553PAIndustrial.05 MGD4,4'-DDTdaily maximum 0.05 ug/L, newSep 1, 20270.004 ug/L (9 values, 9 below detection)—
TMS INTL LLCPA0253553PAIndustrial.05 MGD4,4'-DDTmonthly average 0.05 ug/L, newSep 1, 20270.004 ug/L (9 values, 9 below detection)—
LEAR CORP PINE GROVEPA0008231PAIndustrial, major2 MGD4,4'-DDTdaily maximum 0.001 ug/L, newDec 1, 20280.054 ug/L (6 values, 5 below detection)—
LEAR CORP PINE GROVEPA0008231PAIndustrial, major2 MGD4,4'-DDTdaily maximum 0.00001 lb/d, newDec 1, 20280.00015 lb/d (6 values, 5 below detection)—
LEAR CORP PINE GROVEPA0008231PAIndustrial, major2 MGD4,4'-DDTmonthly average 0.000007 lb/d, newDec 1, 20280.0001499 lb/d (6 values, 5 below detection)—
LEAR CORP PINE GROVEPA0008231PAIndustrial, major2 MGD4,4'-DDTmonthly average 0.0007 ug/L, newDec 1, 20280.054 ug/L (6 values, 5 below detection)—

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