In Tennessee: 8 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Jan 1, 2030 (33 limits); 3 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 204 · PA 172 · LA 165 · OH 134 · MS 68 · AR 58 · TX 57 · MI 53 · GA 52 · VA 52 · MD 48 · NJ 35 · IN 31 · SC 23 · KS 21 · MN 21 · NY 21 · MO 20 · WV 17 · OR 16 · IL 14 · FL 10 · NE 9 · OK 8 · TN 8 · CO 7 · UT 7 · NM 6 · CA 5 · SD 5 · CT 3 · ID 3 · ME 2 · WI 2 · AL 1 · DC 1 · KY 1 · MT 1 · NH 1 · PR 1 · VT 1 · WA 1

Plant	Permit	State	Type	Design flow	Parameter	New limit	Effective	Today's median	× limit
Town of Dandridge	TN0021245	TN	Sewage plant	.9 MGD	Chlorine, total residual	daily maximum 0.2 mg/L, tighter	Jul 1, 2027	1.3 mg/L (11 values)	6.5×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Solids, total dissolved	daily maximum 500 mg/L, new	Jul 1, 2027	554 mg/L (11 values)	1.11×
Marden, LLC (formerly ROCO LLC) DBA Cedar Hill Resort	TN0058033	TN	Industrial	.01 MGD	Chlorine, total residual	daily maximum 0.019 mg/L, tighter	Jan 1, 2028	0.43 mg/L (11 values)	22.6×
Kerry Inc.	TN0073873	TN	Industrial	.008 MGD	Chlorine, total residual	daily maximum 0.02 mg/L, new	Dec 1, 2026	0.0001345 mg/L (4 values)	0.00672×
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	monthly average 23.63 mg/L (Apr–Oct), new	Jan 1, 2027	7.18 mg/L (6 values)	0.304×
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	monthly average 47.63 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	10.68 mg/L (6 values)	0.224×
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	daily maximum 151.6 mg/L (Apr–Oct), new	Jan 1, 2027	15.45 mg/L (6 values)	0.102×
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	daily maximum 351.02 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	17.3 mg/L (6 values)	0.0493×
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	daily maximum 73186.7 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	under 3 values	—
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	daily maximum 31607.9 lb/d (Apr–Oct), new	Jan 1, 2027	under 3 values	—
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	monthly average 9931.7 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	under 3 values	—
City of Clarksville	TN0020656	TN	Sewage plant, major	25 MGD	Nitrogen, ammonia total [as N]	monthly average 4926.1 lb/d (Apr–Oct), new	Jan 1, 2027	under 3 values	—
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	monthly average 13000 lb/d (May–Oct), new	Feb 1, 2027	9181 lb/d (5 values)	0.706×
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	monthly average 358 mg/L (May–Oct), new	Feb 1, 2027	212 mg/L (5 values)	0.592×
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	daily maximum 26000 lb/d (May–Oct), new	Feb 1, 2027	10140 lb/d (5 values)	0.39×
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	monthly average 25900 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Feb 1, 2027	8875 lb/d (6 values)	0.343×
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	monthly average 712 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Feb 1, 2027	239 mg/L (6 values)	0.336×
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	daily maximum 716 mg/L (May–Oct), new	Feb 1, 2027	226 mg/L (5 values)	0.316×
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	daily maximum 51800 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Feb 1, 2027	9795 lb/d (6 values)	0.189×
Hood Container Corporation	TN0002763	TN	Industrial, major	4.36 MGD	Nitrogen, ammonia total [as N]	daily maximum 1424 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Feb 1, 2027	265 mg/L (6 values)	0.186×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	monthly average 12.5 mg/L (May–Oct), new	Jul 1, 2027	9.585 mg/L (5 values)	0.767×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	monthly average 24.6 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jul 1, 2027	11.82 mg/L (6 values)	0.48×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	daily maximum 60.1 mg/L (May–Oct), new	Jul 1, 2027	17.1 mg/L (5 values)	0.285×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	monthly average 20.9 lb/d (May–Oct), new	Jul 1, 2027	5.038 lb/d (5 values)	0.241×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	daily maximum 131.8 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jul 1, 2027	21.2 mg/L (6 values)	0.161×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	monthly average 41 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Jul 1, 2027	6.152 lb/d (6 values)	0.15×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	daily maximum 100 lb/d (May–Oct), new	Jul 1, 2027	11.97 lb/d (5 values)	0.12×
Town of Baileyton	TN0063932	TN	Sewage plant	.2 MGD	Nitrogen, ammonia total [as N]	daily maximum 219.8 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Jul 1, 2027	10.57 lb/d (6 values)	0.0481×
Morristown Utilities Commission	TN0023507	TN	Sewage plant, major	7.5 MGD	Nitrogen, ammonia total [as N]	daily maximum 169 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Feb 1, 2028	under 3 values	—
Morristown Utilities Commission	TN0023507	TN	Sewage plant, major	7.5 MGD	Nitrogen, ammonia total [as N]	daily maximum 103 mg/L (May–Oct), new	Feb 1, 2028	under 3 values	—
Morristown Utilities Commission	TN0023507	TN	Sewage plant, major	7.5 MGD	Nitrogen, ammonia total [as N]	monthly average 43.7 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Feb 1, 2028	under 3 values	—
Morristown Utilities Commission	TN0023507	TN	Sewage plant, major	7.5 MGD	Nitrogen, ammonia total [as N]	monthly average 20.8 mg/L (May–Oct), new	Feb 1, 2028	under 3 values	—
Jackson Energy Authority (JEA)	TN0067083	TN	Sewage plant	.04 MGD	E. coli	daily maximum 410 MPN/100mL, tighter	Jan 1, 2030	91 MPN/100mL (9 values)	0.222×

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=TN&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

Plants facing new discharge limits — by state and pollutant