Permits are required to build, erect, alter, replace, operate, use or maintain existing point sources of water pollution. The majority of our permits are for discharging treated wastewater from domestic and industrial facilities. We also issue permits for land application of wastes from domestic, industrial and agricultural facilities. Our permits usually specify requirements for regular wastewater sampling at the discharge points. In the case of land application, the permit specifies the methods by which wastes are handled and disposed. Permits also specify water quality standards for any discharges.
Most wastewater permits are written to be site-specific, issued to that one location to reflect the unique nature of the wastewater or the receiving water. These permits are normally effective for five years. As a permit nears its expiration, it is redrafted, modified if needed and made available for public review and comment for 30 days on the departments Water Public Notices webpage. After the public comment period ends, the department reviews the comments. The permit is then either issued with needed changes or modified and put on public notice again to resolve any concerns.
Master general permits, as opposed to site-specific permits, are issued to multiple locations where activities are similar enough to be covered by a single set of requirements. For wastewater discharges, these permits are identified by the prefix MO-G in the permit number. The conditions in master general permits are also made available for public review and comment for 30 days before being issued to applicants. General permits for airports, limestone and rock quarries, lubricant manufacturing and petroleum storage greater than 50,000 gallons are required to be made available for public review and comment before issuance to a new facility. After finalization, a general permit cannot be modified. All facilities receiving a general permit must follow the conditions contained in that general permit until it expires or until the facility obtains a site-specific permit.
Applications in Process
Information about permit applications in process is available in the departments' Missouri Clean Water Information Systems (MoCWIS) application. The Applications in Process Search provides a list of water pollution permit applications received by the department. An application is considered ‘In Process’ from the date it is received until it is closed. An application is closed when the permit is issued, the application is denied or the application is withdrawn by the applicant.
In This Section:
Master General Permits
| Permit | Effective Date | Expiration Date | Additional Files | Description |
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| MO-G010000 Concentrated Animal Feeding Operation (CAFO) | Form F - Application for Construction Permit for Concentrated Animal Feeding Op… | SIC #0211, 0212, 0213, 0214, 0241, 0251, 0252, 0253, 0254, 0259 or 0272 Process wastes are collected and reused as fertilizer by spreading onto agricultural fields at agricultural rates. There is no-discharge except during storms exceeding the design storm event. For more information, visit Concentrated Animal Feeding Operation (CAFO) Permits. |
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| MO-G050000 Abandoned Mine Land Reclamation > 5 Acres | MO-G05000 Permit Requirements for Land Reclamation Projects | SIC #9512 - Land, Mineral, Wildlife and Forest Conservation Land reclamation projects involving land disturbance and projects consisting solely of pond and shaft dewatering under control of the department's Land Reclamation Program. SIC #1629 - Heavy construction, Not Elsewhere Classified Surface discharges from these reclamation projects will result from rainfall runoff/ impoundment discharges and shaft pumping. Sediment will be controlled during construction with filter fabric, check dams, sediment ponds, straw bales or other Best Management Practices, which will minimize sediment loss. These projects may also involve stockpiling biosolids for reclamation use. Best Management Practices will be employed at these sites. |
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| MO-G130000 Fish Farms/ Hatcheries | SIC #0273 and 0921 Process wastewater discharges from freshwater and saline Concentrated Aquatic Animal Production facilities using flow-through systems, impoundments or recirculating systems. This permit also authorizes the land application of waste solids produced as part of normal operation, cleaning processes or maintenance in these facilities. *The department will be modifying this permit in response to the new additions in Missouri Clean Water Law regarding land application of industrial wastewater and wastewater treatment residuals. This is the official Notice of Intent for modification. The department will hold two public informational meetings to discuss this modification. If you have any questions regarding this new permit, please contact our permitting staff by phone at 573-526-3337 or email at dnr.generalpermits@dnr.mo.gov. |
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| MO-G140000 Oil/ Water Separators | SIC #5541 and 4959 Discharge from oil/ water separators and similar waste water treatment devices whose sole function is the treatment of stormwater or water without detergents or additives used to rinse or wash down pavements. This permit applies to establishments such as vehicle repair shops, transformer stations and pipeline compressor stations. It does not apply to establishments required to apply for a permit under the stormwater regulations or the discharges of wastewater treatment devices for treating vehicle or equipment wash waters. |
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| MO-G220000 Small Meat Processors | Form P - Application for MOG22 Processing Meat and Meat Products General Permit… | SIC #2011-2015 and 2077 Wastewater, stormwater, surface land irrigation and subsurface soil dispersal from the following industries including, but not limited to, meat first processing (slaughterhouses), meat further processing, renderers, poultry first processors, poultry further processing with SIC Codes #0751, 2011, 2013, 2015 and 2077. These permit conditions incorporate provisions in 40 CFR 432. *The department will be modifying this permit in response to the new additions in Missouri Clean Water Law regarding land application of industrial wastewater and wastewater treatment residuals. This is the official Notice of Intent for modification. The department will hold two public informational meetings to discuss this modification. If you have any questions regarding this new permit, please contact our permitting staff by phone at 573-526-3337 or email at dnr.generalpermits@dnr.mo.gov. |
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| MO-G251000 Heat Pumps | SIC #3585, 5084, 1711 and 4961 Discharge from non-recirculating heat pumps, to surface water only. |
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| MO-G350000 Petroleum Storage <250,000 Gallons | SIC #5171 Stormwater discharges from facilities with above ground storage capacity of pre-consumer or post-consumer petroleum products, ethanol or biodiesel totaling more than 20,000 gallons, but less than 250,000 gallons. |
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| MO-G490000 Limestone Quarries | SIC #1411, 1422,1429, 1446 and SIC Major Group Codes 29 and 32 Stormwater and other specified discharges from limestone and other rock quarries, concrete, glass and asphalt industries. |
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| MO-G500000 Sand and Gravel Washing | SIC #1442 and 1446 Process wastewater, mine/pit dewatering, and/or stormwater discharges associated with sand and gravel mining/dredging, processing, and stockpiles. |
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| MO-G640000 Water Treatment Plant Settling Basins | SIC #4941 Process wastewater discharges associated with water treatment plant filter backwash water and solids. Allows operation of wastewater and sludge holding systems as well as land application of water treatment plant sludge. |
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| MO-G641000 Zeolite Softeners | MO-G641000 Permit Requirements for Zeolite Water Softener Filter Backwash | SIC #4941 Discharges of backwash water from water softening units. Zeolite filter backwash discharges. |
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| MO-G670000 Hydrostatic Testing of Pipelines and Storage Tanks | All Outfalls- All SIC Codes Hydrostatic testing of Pipelines and Storage Tanks. |
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| MO-G690000 Discharges from Dredged Aggregate to Lakes Rivers Harbors | SIC #1629 and 1442 Dredging return water and stormwater runoff from dredged material deposition sites and other disturbance resulting from maintenance dredging of lakes and rivers discharged to waters other than Missouri and Mississippi Rivers. |
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| MO-G698000 Discharges from Dredged Aggregate to Big Rivers | SIC #144 Discharge of wash water, stormwater and return water from aggregate dredging operations on the Missouri and Mississippi Rivers.
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| MO-G750000 Car Wash | SIC #7542 Wastewater treatment systems for no-discharge exterior vehicle and equipment wash facilities. This includes no-discharge surface land application systems and a provision allowing no-discharge surface land application from animal truck wash off and wash out for facilities independent of Animal Feeding Operations. The operation is to be designed and operated as a no-discharge facility. |
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| MO-G760000 Swimming Pools Discharges | SIC #5999, 7000, 7010, 7030, 7032, 7996, 7997, 7999 Discharge of filter backwash and pool drainage from swimming pools and lined ponds which use chlorine as a sanitizer.
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| MO-G821000 Land Application of Domestic Wastewater Biosolids | All Outfalls - SIC #4952 Land application of domestic septage not to exceed 10,000 gallons per acre per year. |
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| MO-G822000 Land Application of Food Processing Wastewater | Form E - Application for General Permit Under Missouri Clean Water Law MO 780-0… | SIC #SIC Codes 200x, 2021-2099 and 5812 No-Discharge Facility Land Application or subsurface dispersal system of wastes from the following industries including, but not limited to, SIC 20xx - Light Commercial Food Products Industry and SIC 5812 - Eating Places (restaurant grease traps) onto grass land, crop land or timber land for use as fertilizer and soil amendment. SIC Codes 2011-2015 for Meat Products and SIC Code 2077 for Animal and Marine Fats and Oils will receive coverage under MO-G220000. *The department will be modifying this permit in response to the new additions in Missouri Clean Water Law regarding land application of industrial wastewater and wastewater treatment residuals. This is the official Notice of Intent for modification. The department will hold two public informational meetings to discuss this modification. If you have any questions regarding this new permit, please contact our permitting staff by phone at 573-526-3337 or email at dnr.generalpermits@dnr.mo.gov. |
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| MO-G823000 Land Application of Domestic Wastewater | SIC #4952,6515, 8641 No-discharge, private, domestic wastewater treatment facilities with design flows of less than 50,000 gallons per day.
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| MO-G840000 Clay Pits | SIC #1455 and 1459 Discharge of stormwater, snowmelt and infiltration water from a clay pit or mine. |
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| MO-G870000 Pesticide Applications | SIC #0851, 4959 and 8999 (including, but not limited to) Point source discharges of pesticides to waters of the state for the specific pesticide use patterns as defined in this permit. The permit requires that applicators implement site specific control practices and other pest management strategies that are designed to minimize discharges of pesticides to waters of the State. |
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| MO-G920000 Feedstock Compost Sites | SIC #2875 Mixed feedstock composting operations under 20 acres. The operation is to be designed and operated as a no-discharge facility. |
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| MO-G940000 Petroleum Impacted Water Remediation | MO-G940000 Petroleum Impacted Water Permit Exemption - PUB3075 | SIC # - All SIC codes may be covered under this permit when remediating petroleum impacted water Wastewater or stormwater discharges associated with petroleum impacted water at any industrial or commercial facility. |
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| MO-G970000 Yard Waste Compost Sites | SIC #2875 Stormwater runoff and compost wastewater discharges from yard waste composting operations less than 20 acres in size. Flow is dependent upon precipitation.
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| MO-GC00000 Sewer Extension Construction (GC) | SIC #4952 This permit authorizes the construction of gravity sewer extensions, force mains and lift stations. Storage basins, considered part of the collection system, are also included. Earthen basins are not included under this permit. As the department does not examine structural features of design or the efficiency of mechanical equipment, the issuance of this permit does not include approval of these features. |
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| MO-GD00000 Treatment Works ≤ 50,000 Gallons in Lakes/ Reservoirs | Domestic treatment works discharging less than or equal to 50,000 gallons per day into lakes or reservoirs. |
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| MO-GDS0000 Treatment Works ≤ 50,000 Gallons in Rivers/ Streams | Domestic treatment works discharging less than or equal to 50,000 gallons per day into rivers or streams. *This is a new master general permit, originally part of Master General Permit MO-GD00000. If your facility is currently permitted under the M0-GD00000 permit, you must apply for renewal of your permit a minimum of 30 days before it expires, so the department can authorize your facility to continue operating in Missouri. Your facility will receive a new MO-GDS0000 permit number upon issuance.
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| MO-GS10000 State No-Discharge Concentrated Animal Feeding Operation (CAFO) | Form W - Concentrated Animal Feeding Operation (CAFO) Operating Permit Applicat… | SIC #0211, 0212, 0213, 0214, 0241, 0251, 0252, 0253, 0254, 0259 or 0272 Process wastes are collected and managed as fertilizer by spreading onto agricultural fields at agricultural rates according to this permit. For more information, visit Concentrated Animal Feeding Operation (CAFO) Permits. |
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| MO-GSE0000 Sewer Extension Construction (GSE) | SIC#4952 This permit authorizes the construction of gravity sewer extensions, force mains, and lift stations. Non-earthen flow equalization storage basins at lift stations and inline storage, which flows back into the lift station or collection system, are also included. |
Standard Conditions
These minimum conditions apply to all permits where incorporated by reference unless superseded by requirements specific in the permit.
Standard Condition Part I
This document of standard conditions incorporate permit conditions as required by 40 CFR 122.41 or applicable state statues or regulations. These minimum conditions include sampling, monitoring, and recording; reporting requirements; bypass and upset requirements; and administrative requirements.
- Standard Condition Part I - Effective Aug. 1, 2014
- Standard Condition Part I - Effective Nov. 1, 2013
- Standard Condition Part I - Effective Oct. 1, 1980
Standard Condition Part II
This document of standard conditions notes conditions for publicly owned treatment works specific to industrial users, including definitions, identification of industrial discharges, application information and notice to the department.
Standard Condition Part III
This document of standard conditions outline specific requirements for biosolids and sludge from domestic treatment facilities. This part includes general requirements, definitions, mechanical wastewater treatment facilities, biosolids or sludge disposed at other treatment facility or by contract hauler, incineration of sludge, surface disposal sites and biosolids and sludge lagoons, land application of biosolids, septage, closure requirements, monitoring frequency and record-keeping and reporting requirements.
Permit Renewals
Permittees must submit a completed application for the renewal of a permit at least 180 days prior to expiration of a site-specific permit. The following forms must be included (may need more than one): Domestic wastewater systems are those listed as publicly owned treatment works (POTW), or discharge primarily kitchen and/or bathroom wastewater. Industrial facilities are those having industrial wastewater, including cooling water, and/or stormwater discharges for qualifying industries as found in 10 CSR 20-6.200. Domestic wastewater at industrial facilities is included under the industrial operating permit but additional forms may be required, see below
- Form A - Application for Nondomestic Permit Under Missouri Clean Water Law - MO 780-1479 for all non-domestic facilities; will also need Form C, and please review Form D. For systems also irrigating or spreading, see Forms I or R. For Domestic systems at industrial sites, please fill out Form B or B2 for any domestic outfall.
- Form B - Application for Operating Permit for Facilities that Receive Primarily Domestic Waste and Have a Design Flow Less Than or Equal to 100,000 Gallons Per Day for domestic wastewater less than or equal to 100,000 gallons per day.
- Form B2 - Application for Operating Permit for Facilities that Receive Primarily Domestic Waste and Have a Design Flow More than 100,000 Gallons Per Day for domestic wastewater greater than 100,000 gallons per day.
- Form C - Application for Discharge Permit - Manufacturing Commercial, Mining, Silviculture, Operations and Stormwater for all industrial and commercial facilities discharging wastewater and/or stormwater (also always include Form A). A table of the pollutant scan will need to be filled out for each outfall.
- Form D - Application for Discharge Permit - Primary Industries , Form MO 780-1516 for primary or categorical industries as defined by EPA, see form for list of industries (include with Forms A and C; usually required if an Effluent Limitation Guideline (ELG) is applicable to the facility). A table of the pollutant scan will need to be filled out for each outfall, which includes internal outfalls.
- Form I - Permit Application for Operation of Wastewater Irrigation Systems, Form MO 780-1686 for wastewater irrigation systems (usually called non-discharging facilities, or a combination of discharging and non-discharging facility; must accompany Form A or Form B/B2 if wastewater is irrigated or partially irrigated to the surface or subsurface).
- Form R - Permit Application for Land Application of Industrial Wastewater Biosolids and Residuals, Form MO 780-1684 for land application of industrial wastewater, biosolids, or residuals (usually non-discharging facilities, or a combination of discharging and non-discharging facility; must also include Form A).
Completed forms should be submitted via e-mail to cleanwaterpermits@dnr.mo.gov. For questions, please contact your previous permit writer, the regional office, email cleanwaterpermits@dnr.mo.gov, or call the Operating Permits Section at (573) 522-4502.
Resources
Nutrients
Voluntary Early Nutrient Monitoring Program for Point Sources According to the Nutrient Loss Reduction Strategy:
- Voluntary Early Nutrient Monitoring Memorandum
- Response to Comments
- Voluntary Acceptance Letter to Facilities
- Voluntary Early Nutrient Monitoring Program for Point Sources Participation Form
- Standard Operating Procedure #MDNR-ESP-113
Permit Information
- Capacity, Management, Operations and Maintenance Plan Model Guidance - PUB2574
- Capacity, Management, Operations and Maintenance Plan Editable Template
- Clean Water Compliance Assistance and Enforcement
- De Minimis Wastewater Permit Exemption - PUB2995
- Example Water Treatment Plant Best Professional Judgement (BPJ)
- Finding of Affordability
- Missouri Gateway for Environmental Management (MoGEM)
- National Pollutant Discharge Elimination System (NPDES) Electronic Reporting Rule
- Pump and Haul Operating Permit Exemption - PUB2658
- Wastewater and Stormwater Permits Manual
- Wastewater Construction Permits and Engineering
- Wastewater Management for Medical Marijuana Facilities
- Water Quality Standards
Popular Links
Contact Information
Water Protection Program
Division of Environmental Quality
P.O. Box 176
Jefferson City, MO 65102-0176
United States
Operating Permits Section
Water Protection Program
Water Pollution Control Branch
P.O. Box 176
Jefferson City, MO 65101
United States
