The Missouri Department of Natural Resources reviews wastewater construction permit applications to determine that plans and specifications for wastewater sewer systems and treatment facilities are complete with regard to the minimum requirements, and the proposed construction is acceptable with regard to accepted design standards for wastewater systems to protect the public health and the environment.
Construction Permit Status
You can search the department’s Missouri Clean Water Information System for construction permit applications in process.
You can find final construction permits issued on or after Aug. 1, 2009.
- Application for Construction Permit – Sewer Extension, Form--MO 780-1632
- Application for Construction Permit - Wastewater Treatment Facility, Form--MO 780-2189
- Application for Transfer of Construction Permit, Form--MO 780-2156
- Continuing Authority and Receiving Wastewater Treatment Facility Acceptance, Form--MO 780-2584
- Facility Closure Request Form, Form--MO 780-2512
- Facility Plan or Engineering Report Review Request, Form--MO 780-2617
- No Discharge Evaluation, Form--MO 780-2805
- Request a new Geohydrologic Evaluation, view request status, or view completed evaluations with GeoEDGE
- Summary of Soils Report for Land Application of Treated Wastewater, Form -- MO 780-2696
- Statement of Work Completed, Form--MO 780-2155
- Variance Application - 644.061 RSMo 1986, Form--MO 780-0181
- Form B - Application for Operating Permit for Domestic Wastewater (< 100,000 gallons per day), Form--MO 780-1512
- Form B2 - Application for Operating Permit for Domestic Wastewater (˃100,000 gallons per day), Form--MO 780-1805
- Ammonia Criteria: New EPA Recommended Criteria, Fact Sheet—PUB2481
- Approval Process for Innovative Technology, Fact Sheet—PUB2453
- Centralized Wastewater Collection and Treatment in Subdivisions, Mobile Home Parks and Campgrounds, Technical Bulletin--PUB597
- Clean Water State Revolving Fund, or SRF, Project Facility Plan Guidance, Fact Sheet--PUB2418
- Facility Plan Guidance for Wastewater Treatment Facilities, Fact Sheet--PUB2416
- No-Discharge Alternative Evaluation, Fact Sheet--PUB2665
- Wastewater Treatment Facility Permit Fees, Fact Sheet—PUB2564
- 3,000 Gallon Per Day or Less No-Discharge Permit Exemption for Domestic Wastewater Design Guidance, Fact Sheet—PUB1319
- Wastewater Guidelines and Standards Documents, PUB2754
Standard Sewer Specifications and Details
The department offers a review and approval process for municipalities with standard sewer specifications and details. Municipalities that receive department approval will not be required to submit a copy of their specifications and details with a sewer extension construction permit application. You may view approved and currently under review municipalities.
Sewer Extension Authority Supervised Program
In accordance with 10 CSR 20-6.010(6)(A), the department may grant approval of an entity’s sewer extension authority supervised program when the facility has at least one existing treatment plant equal to or greater than one million gallons per day (1MGD). Entities with a department-approved program are exempt from construction permit requirements for collection systems. Department approval may be granted for a period of five years in the applicant’s operating permit. At the time of the operating permit renewal, the sewer extension authority supervised program must submit a request for reauthorization and the department will reevaluate the authority..
As part of the review, the department verifies that the entity has sufficient engineering review capabilities, has defined procedures for review, construction, and inspection of projects done by others and those projects done by the entity, how plans are maintained permanently, and that the entity’s standard plans and specifications meet the minimum requirements in 10 CSR 20-8, specifically
Approved sewer extension authority supervised program entities are responsible to permit, inspect, and accept sewer extensions constructed within their municipal boundaries and ultimately discharging to a wastewater treatment facility for which they own and act as continuing authority. With an approved program, the entity may have additional requirements in their state operating permit, such as an annual summary report on the projects undertaken during the previous calendar year.
Entities applying for funding under 10 CSR 20-4, “Grants and Loans” will be required to comply with those requirements in addition to their approved sewer extension authority supervised program.
New sewer extension authority program requests must meet the requirements of 10 CSR 20-6.010(6)(B). Municipality wishing to apply for this program should contact the Water Protection Program’s Engineering Section at 573-751-1300 or DNR.WPPEngineerSection@dnr.mo.gov.
Approved Sewer Extension Authority Programs
- MO-0092924 Columbia Regional Airport WWTF
- MO-0097837 Columbia Regional WWTP
- Sewer Utilities Resources
- Department reauthorization letter dated March 16, 2018
- MO-0049531 KC, Birmingham WWTF
- MO-0024911 KC, Blue River WWTF
- MO-0048313 KC, Fishing River WWTF
- MO-0048305 KC, Rocky Branch Sewage Treatment Plant
- MO-0024961 KC, Todd Creek WWTP
- MO-0024929 KC, Westside WWTP
- MO-0044300 Algoa Regional WWTF
- MO-0094846 Jefferson City Regional Water Reclamation Facility
- Developer Resources
- Department reauthorization letter dated June 12, 2017
- MO-0103039 Springfield, Northwest WWTP
- MO-0049522 Springfield Southwest WWTP
- Public Works Design Guide
- MO-0030970 St. Peters – Spencer Creek WWTP
- Department reauthorization letter dated Nov. 1, 2017
- MO-0120529 DCSD Augusta Shores WWTP
- MO-0132152 DCSD Riverdale Subdivision WWTF
- MO-0129763 DCSD Steven A Rogers WWTP
- MO-0085472 DCSD Treatment Plant #1
- MO-0116572 DCSD WWTP #2
- MO-0131300 DCSD Wyndgate Subdivision WWTP
- Department reauthorization letter dated Dec. 5, 2016
- MO-0025178 MSD – Bissell Point WWTP
- MO-0025160 MSD – Coldwater Creek WWTF
- MO-0086126 MSD – Fenton WWTP
- MO-0101362 MSD – Grand Glaize WWTP
- MO-0025151 MSD – Lemay WWTP
- MO-0127949 MSD – Lower Meramec WWTF
- MO-0004391 MSD – Missouri River WWTF
- Standard Construction Specifications
- Department reauthorization letter dated Nov. 15, 2017
* Denotes entities currently under review during the operating permit renewal period.
New Program Approval Requests
Northeast Public Sewer District
- EPA Water Topics
- Financial Assistance Center
- Geological Survey Program
- Construction Land Disturbance
- Citizens Guide to Water Permits
- Water Protection Program
- Water Quality Certification Section 401
- Clean Water Commission
- Nonpoint Source Pollution
- Water Public Notices
- Stormwater Permits
- Impaired Waters
- Watershed Planning
All construction permits for new or expanded discharges are required to follow the Missouri Antidegradation Rule and Implementation Procedure.
For a new wastewater treatment plant, if the design flow is less than 100,000 gallons per day the fee is $500; for a new wastewater treatment plant, if the design flow is equal to or more than 100,000 gallons per day the fee is $1000; for a review in which the existing wastewater treatment train is being retained as part of an upgrade or for a water quality review analysis the fee is $250.
General Antidegradation Review
The General Antidegradation Review has been revised. This voluntary review path is now available to domestic wastewater systems with design flows of up to 50,000 gallons per day and it now incorporates less-degrading effluent limits for Total Phosphorus when the proposed discharge to a Tier 2 water is located in the watershed of a lake greater than 10 acres. Please note the following elements regarding this voluntary path:
- The department conducted a general analysis of wastewater treatment alternatives for small systems in accordance with the Antidegradation Implementation Procedure, and concluded that there are several available technologies that are capable of producing a high quality effluent. Applicants that wish to use this general analysis only need to complete three documents/forms:
- Antidegradation Review Summary/Request
- Antidegradation Review Submittal Voluntary Tier 2 -Significant Degradation for Domestic Wastewater Facilities with Design Flows Less than 50,000 gallons per day
- Antidegradation: Regionalization and No-Discharge Evaluation. This optional approach would allow applicants to forgo the preparation of a site-specific alternatives analysis and eliminate the need to submit the "Path C” form
- Section 10 Antidegradation Review Submittal Voluntary Tier 2 - Significant Degradation for Domestic Wastewater Facilities with Design Flows Less than 50,000 gallons per day provides a table of effluent limits that applicants will agree to accept using this approach.
- This approach would only be available to new or expanding domestic wastewater treatment systems that will discharge to Tier 2 waters (those waters that are not impaired or are classified as Outstanding State or National Resource Waters).
- The “Antidegradation: Regionalization and No-Discharge Evaluation form is used to demonstrate that regionalization is not feasible nor is land application or subsurface wastewater disposal.
- The fee for this review will be $500.
Review Request Forms
- Antidegradation Review Submittal Voluntary Tier 2 - Significant Degradation for Domestic Wastewater Facilities with Design Flow Less than 50,000 Gallons Per Day Form--MO780-2804
- Antidegradation: Regionalization and No-Discharge Evaluation, Form--MO 780-2805
- Antidegradation Review / Summary Request, Form--MO 780-2025
- Antidegradation Review Summary Path A: Tier 2 – Non-Degradation Mass Balance, Form--MO 780-2872
- Antidegradation Review Summary Path B: Tier 2 - Minimal Degradation, Form--MO 780-2022
- Antidegradation Review Summary Path C: Tier 2 - Significant Degradation, Form--MO 780-2021
- Antidegradation Review Summary Path D: Tier 1 Preliminary Review Request, Form--MO 780-2024
- Antidegradation Review Summary Path E: Temporary Degradation, Form--MO 780-2023
Selecting an Engineering Consultant
All engineering reports, plans and specifications must be signed, sealed and dated by a Missouri professional engineer. The procurement of planning and design services is one of the most important steps in the design or upgrade of wastewater systems.
Qualifications-based selection (QBS) is a recommended process to negotiate procurement of an engineering firm based on qualifications and competence relative to the work to be performed. Below is a link to the QBS proper procurement steps and information provided by the American Council of Engineering Companies (ACEC) Missouri.
You can search for a licensed professional engineer in the state of Missouri on the Missouri Division of Professional Registration Licensee Search.
- Capacity, Management, Operations and Maintenance Plan Model Guidance - PUB2574
- 10 CSR 20-8 Wastewater Design Standards
- Ten tips to help communities hire an engineer
- 2018 Wastewater Engineering Construction Permit Process and Regulation Changes Workshop Presentation
- 2020 Wastewater Engineering Workshop Presentation