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Plants facing new discharge limits — by state and pollutant

In Minnesota, for Chloride [as Cl]: 4 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Jan 1, 2027 and Jul 1, 2031 (9 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 · IA 45 · MN 4 · IN 2 · TX 2 · AR 1 · CO 1 · VA 1

By pollutant: all · Phosphorus, total [as P] 9 · Chloride [as Cl] 4 · Solids, total suspended 4 · Sulfate, total [as SO4] 4 · BOD, carbonaceous [5 day, 20 C] 3 · Mercury, total [as Hg] 2 · Nitrogen, ammonia total [as N] 2 · pH 2 · Chlorine, total residual 1 · Coliform, fecal MPN + membrane ftl 44.5 C 1 · Copper, total [as Cu] 1 · Flow, in conduit or thru treatment plant 1 · Nitrogen, total [as N] 1 · Perfluorobutanesulfonic acid (PFBS) 1 · Perfluorobutanoic acid (PFBA) 1 · Perfluorohexanesulfonic acid (PFHxS) 1 · Perfluorooctanesulfonic acid (PFOS) 1 · Perfluorooctanoic acid (PFOA) 1 · Solids, total dissolved 1 · Zinc, total [as Zn] 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
Sacred Heart city ofMN0024708MNSewage plant.237 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJan 1, 2027821 mg/L (5 values)3.57×
Alexandria Lake Area Sanitary DistrictMN0040738MNSewage plant, major4.7 MGDChloride [as Cl]monthly average 230 mg/L, tighterJul 1, 2030748 mg/L (11 values)3.25×
Alexandria Lake Area Sanitary DistrictMN0040738MNSewage plant, major4.7 MGDChloride [as Cl]daily maximum 4483 kg/d, tighterJul 1, 20307960 kg/d (11 values)1.78×
Sacred Heart city ofMN0024708MNSewage plant.237 MGDChloride [as Cl]daily maximum 377 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJan 1, 2027under 3 values—
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]daily maximum 363 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]daily maximum 308 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
Resort Management CorpMN0056685MNIndustrial.067 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), newJun 1, 2028under 3 values—
Gonvick city ofMN0020541MNSewage plant.09 MGDChloride [as Cl]monthly average 230 mg/L (Jan, Mar, May, Jul, Sep, Nov), tighterJul 1, 2031under 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=MN&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