Clean Water Act discharge permit · NPDES ID0023167

CASCADE, CITY OF - CASCADE WWTP, Cascade, ID: NPDES ID0023167 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
9Pollutants with an effluent exceedance

CASCADE, CITY OF - CASCADE WWTP, held by CASCADE, CITY OF, holds NPDES permit ID0023167, which discharges to North Fork Payette River (Rm 38). EPA’s file records it issued November 17, 2003 and expiring January 1, 2009. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	CASCADE, CITY OF - CASCADE WWTP
Permittee as filed	CASCADE, CITY OF
NPDES ID	ID0023167
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	November 17, 2003
Expiration date	January 1, 2009
Address	Cascade, ID 83611
Receiving water	NORTH FORK PAYETTE RIVER (RM 38)
Subwatershed	Warm Springs Creek-Boise River (HUC 170501140401)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

14Pollutants on file
10Under a numeric limit
14With a violation of any kind
9With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, suspended percent removal	1	69	25	April 30, 2026	566% over the limit
Solids, total suspended	5	204	24	April 30, 2026	377% over the limit
BOD, 5-day, 20 deg. C	5	194	6	October 31, 2022	300% over the limit
BOD, 5-day, percent removal	1	50	6	March 31, 2023	360% over the limit
Coliform, fecal MF, MFC broth, 44.5 C	0	5	5	March 31, 1991	11,100% over the limit
Nitrogen, ammonia total [as N]	1	44	3	February 28, 2023	189% over the limit
E. coli, MTEC-MF	0	19	2	March 31, 2024	221% over the limit
pH	2	81	1	April 30, 2010
E. coli	2	73	1	April 30, 2006	932% over the limit
Flow, in conduit or thru treatment plant	2	67	0
Temperature, water deg. centigrade	1	65	0
Phosphorus, total [as P]	1	16	0
Nitrogen, Kjeldahl, total [as N]	0	6	0
Nitrite + Nitrate total [as N]	0	3	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES ID0023167.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, ID0023167.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ID0023167 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act NPDES discharge permit ID0023167, held by CASCADE, CITY OF for the CASCADE WWTP in Cascade, ID, with the permit shown as administratively continued and classed as a minor discharger. The figures listed are 10 pollutants on file, 9 pollutants under a numeric limit, and 14 effluent limits and exceedances, with the permit's status and dates reflecting EPA's file as of September 15, 2026.