NPDES ID0030031 · Clean Water Act
IWWQG - MASON CREEK ACTIVATED WETLAND PILOT PROJECT, Caldwell, ID: NPDES ID0030031 discharge permit, effluent exceedances, inspections, penalties
IWWQG - MASON CREEK ACTIVATED WETLAND PILOT PROJECT, Caldwell, Idaho: Individual permit ID0030031, held by IWWQG - Mason Creek Activated Wetland Pilot Project; Effective; issued October 25, 2021, term to November 30, 2026, by Idaho DEQ; discharges to Mason Slough to Lower Boise River.
- Solids, total suspended: 10 limits, 106 violations of any kind.
- Phosphorus, total [as P]: 10 limits, 106 violations of any kind.
- Temperature, water deg. centigrade: 6 limits, 62 violations of any kind.
- pH: 6 limits, 62 violations of any kind.
- Flow, in conduit or thru treatment plant: 4 limits, 36 violations of any kind.
- Phosphorus, total [as P] [credit]: 1 limit, 9 violations of any kind.
- Phosphorus, total percent removal: 1 limit, 9 violations of any kind.
IWWQG - MASON CREEK ACTIVATED WETLAND PILOT PROJECT among its neighbors
197 discharge permits are in the Mill Slough-Boise River subwatershed (HUC 170501140410); ID0030031 is one.
Other permits in the Mill Slough-Boise River subwatershed (HUC 170501140410)
- 1ST STREET TOWNHOMES SUBDIVISION, Star: IDR10C20H, minor, term to 2027-02-09
- 2684 BEACON LIGHT IMPROVEMENT PROJECT, Eagle: IDR10C1O0, minor, term to 2027-02-09
- 9335 SH-44 4 ACRE LOT, Middleton: IDR1002ZU
- ACHD LINDRE: SH44 TO FLOATING FEATHER, Eagle: IDR10C1TT, minor, term to 2027-02-09
- AMBERLY RANCH SUBDIVISION, Eagle: IDR10L0FX
- AMERICAN STAR SUBDIVISION NO. 2, Star: IDR1002TO, minor, term to 2022-02-15
- AMERICAN STAR SUBDIVISION NO. 3, Star: IDR10C05M, minor, term to 2022-02-16
- ARTESIAN SPRINGS SUBDIVISION, Middleton: IDR10C1JY, minor, term to 2027-02-09
- ARVORY CREST SUBDIVISION PHASE 4, Star: IDR10C1YC, minor, term to 2027-02-09
- BALD EAGLE POINTE SUBDIVISION NO. 1, Eagle: IDR1002PH, minor, term to 2022-02-15
Identity
| Facility | IWWQG - MASON CREEK ACTIVATED WETLAND PILOT PROJECT |
|---|---|
| Permittee | IWWQG - Mason Creek Activated Wetland Pilot Project |
| NPDES ID | ID0030031 |
| Status | Effective |
| Type | Individual permit |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | October 25, 2021 |
| Expires | November 30, 2026 |
| Agency | Idaho DEQ |
| Address | Caldwell, ID 83605 |
| Receiving water | Mason Slough to Lower Boise River |
| Subwatershed | Mill Slough-Boise River (HUC 170501140410) |
NPDES ID0030031: effluent limits and exceedances
IWWQG - MASON CREEK ACTIVATED WETLAND PILOT PROJECT (NPDES ID0030031): 7 pollutants on file, 7 limited; 7 with a violation of any kind, 0 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 10 | 106 | 0 | ||
| Phosphorus, total [as P] | 10 | 106 | 0 | ||
| Temperature, water deg. centigrade | 6 | 62 | 0 | ||
| pH | 6 | 62 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 36 | 0 | ||
| Phosphorus, total [as P] [credit] | 1 | 9 | 0 | ||
| Phosphorus, total percent removal | 1 | 9 | 0 |
NPDES ID0030031: inspections, violations and enforcement
NPDES ID0030031 (IWWQG - MASON CREEK ACTIVATED WETLAND PILOT PROJECT): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES ID0030031
NPDES ID0030031: one email when its EPA record changes — $99/month.
Permits near NPDES ID0030031
NPDES ID0030031: 7 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.