EPA · discharge permits by pollutant and parameter
Silica, total [as SiO2]
- 16Permits carrying a limit
- 0With a recorded exceedance
- 2States
EPA identifies this parameter by code 00956. A permit listed here carries a numeric limit on silica, total [as sio2] in its discharge; an exceedance is a monitoring result above that limit, as reported to EPA.
By state
Other pollutants
- Chloride, dissolved in water 74
- Chloride, total recoverable 129
- Sulfate, total [as SO4] 2,841
- Sulfate, dissolved [as SO4] 20
- Asbestos 127
- Fluoride 40
- Fluoride, dissolved [as F] 56
- Fluoride, total [as F] 850
- Fluorine 4
- Silica, dissolved [as SiO2] 3
- Arsenic, total recoverable 2,452
- Cobalt, total recoverable 54
- Iron, total recoverable 4,424
- Selenium, total recoverable 2,113
- Thallium, total recoverable 754
- Tin, total recoverable 14
- Titanium, total recoverable 8
- Iron and manganese, total 6
- Arsenic, trivalent total recoverable 3
- Arsenic, Inorganic 6
Permits
| Permit holder | NPDES ID | City | State | Program | Discharger | Receiving water |
|---|---|---|---|---|---|---|
| WILLITS WWTF | CA0023060 | WILLITS | CA | Publicly owned treatment works | Major | EEL R/BAECHTEL CR, Outlet Creek |
| PAR HAWAII REFINERY | HI0000329 | KAPOLEI BUSINESS PARK | HI | Major | PACIFIC OCEAN | |
| KAHULUI GENERATING STATION | HI0000094 | KAHULUI | HI | Major | PACIFIC OCEAN | |
| CARGILL CORN MILLING (PROGOLD) | ND0026000 | WAHPETON | ND | Major | Upper Red | |
| SHIPMAN GENERATING STATION | HI0000264 | UNKNOWN | HI | Major | WAILOA RIVER BASIN | |
| ENDERLIN CITY OF | ND0022462 | ENDERLIN | ND | Publicly owned treatment works | Minor | Maple |
| EAST CENTRAL REGIONAL WD-GF | ND0026018 | ARVILLA | ND | Publicly owned treatment works | Minor | Turtle |
| GUARDIAN ENERGY HANKINSON | ND0026310 | HANKINSON | ND | Minor | Western Wild Rice | |
| CENTER COAL CO | ND0025321 | CENTER | ND | Publicly owned treatment works | Minor | Painted Woods-Square Butte |
| TOPA FINANCIAL CENTER | HI0021768 | HONOLULU | HI | Industrial stormwater | Minor | Waolani Stream |
| AMBU KING SYSTEMS CORPORATION | INP000608 | NOBLESVILLE | IN | Minor | TO NOBLESVILLE POTWN | |
| ROSEBUD POWER PLANT, COLSTRIP ENERGY LIMITED PARTNERSHIP | MTX000052 | COLSTRIP | MT | Minor | SUNDAY CREEK | |
| BISMARCK WTP | ND0027093 | BISMARCK | ND | Minor | Rock Haven Creek-Missouri River | |
| CUTTYS HAYDEN CREEK RESORT | COX634054 | FREMONT COUNTY | CO | Minor | groundwater | |
| WATERLEAF GSL LITHIUM PROJECT DEMONSTRATION PROJECT | UT0026280 | CORINNE | UT | Minor | Great Salt Lake | |
| JACKSON PRAIRIE GAS STORAGE FACILITY | WA0040827 | CHEHALIS | WA | Minor | Foster Creek-Cowlitz River |
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