About the Program:
Anne Arundel County has established policies and procedures that provide property owners who have certain stormwater controls on their property the opportunity to reduce their annual Watershed Protection and Restoration Fee (WPRF), also known as the stormwater fee, by up to 50%. The WPRF Credit Program Policy and Guidance document for Anne Arundel County provides the Department of Public Works with the framework needed to administer the program.
- Recognize the significant stormwater control investments already made by certain property owners.
- Encourage practices that proactively and sustainably manage runoff on private property.
- Support the Bureau of Watershed Protection and Restoration's goal to minimize the impact of land development on water resources.
For questions about the WPRF Credit Program contact us at 410-222-7536 or firstname.lastname@example.org.
Paper Application Forms
Attn: WPRF Credit Program
Anne Arundel County Department of Public Works
Bureau of Watershed Protection and Restoration
2662 Riva Road, MS 7310
Annapolis, Maryland 21401
Applications must be received or postmarked by October 1 of the taxable year. After October 1, applications will still be processed but the credit, if approved, will not start until the following taxable year.
The County will review a completed WPRF Credit application and issue a written decision within 90 days of receipt. If approved, necessary adjustments will be made to the billed fee and any applicable refund checks will be mailed separately from the decision letter.
Along with the application, the applicant will need to submit photographs of the practices and their drainage areas, a site plan/sketch that shows the layout of the property and the location of the practices, and copies of the grading permit plans, stormwater management report, and installation documentation (if applicable/available).
In addition, the practice(s) must be covered under one of the following agreements:
Inspection and Maintenance Agreement for Private Stormwater Management:
- Practices installed under a Grading Permit will have this type of agreement, as it is executed between the property owner and the County prior to the issuance of the Grading Permit. The Agreement stays with the property even if ownership changes.
- You can find a copy of these agreements on the Maryland Land Records website. If you are unsure whether your practice is covered by this type of agreement and would like assistance, contact us at 410-222-7536 or email@example.com.
Stormwater Remediation Fee Credit Agreement:
- If your practice is not currently covered under an Inspection and Maintenance Agreement, you can enter into a Stormwater Remediation Fee Credit Agreement during the fee credit application process.
Disclaimer: It is recommended that you submit as much documentation as possible with your application. Applications without complete documentation can still be submitted and County staff will attempt to obtain the needed information about the stormwater management practices and the water quality treatment they provide from available records and resources. However, as the applicant is ultimately responsible for providing documentation, if County staff is unable to locate the necessary information then the lack of documentation from the applicant would be grounds for denial of the credit.
To be eligible, the property must be regulated through a National Pollutant Discharge Elimination System (NPDES) permit with stormwater management controls and/or be certified by the Maryland Department of Natural Resources as a Clean Marina. To support this, the following information should be submitted with your application:
NPDES Permit Information (if applicable), including:
- State Number
- MDE’s NPDES Permit Acceptance Letter with Registration Number
- Stormwater Pollution Prevention Plan
- Site Plan Showing Location of BMPs
DNR Certification of Clean Marina Initiative (if applicable)
To be eligible for the WPRF Credit program, the stormwater management practices must be:
- Privately owned and maintained
- Located on land with the same owner as the parcel seeking credit
- Passed a recent inspection by County staff to verify that they have been properly designed, constructed, and maintained (prior to WPRF credit approval)
- Providing water quality treatment (minimum of 1” of rainfall treated for full credit, partial credit available for less treatment)
- Designed, approved, constructed, and maintained in accordance with the County Standards, Stormwater Management Practices and Procedures Manual, and/or the 2000 Maryland Stormwater Design Manual, Volumes I and II, and Supplements.
By law, the maximum credit for any property is 50% of the WPRF.
Multi-Family, Non-Residential, and/or Residential Property - To receive the full 50% credit, the following conditions must be met using eligible practices:
- The entire impervious surface area of the property treated (or equivalent area treated beyond the property boundaries)
- At least one inch of rainfall treated
If only a portion of the property’s impervious area is treated or if the practices treat less than one inch of rainfall, partial credit can be awarded.
Credit Formula: Credit % = (Treated Impervious ÷ Site’s Total Impervious) x Treatment Value x Maximum Allowable Credit
Where the Maximum Allowable Credit is 50% and the Treatment Value equals 100% if at least 1” of rainfall is treated by the eligible practices. If less than 1”, use the percentage of 1” treated for the Treatment Value.
|Total Impervious (sq-ft)||Treated Impervious (sq-ft)||Rainfall Treated (in)||Credit Calculation||WPRF will be reduced by|
|5,000||5,000||1||(5,000/5,000) x 100% x 50% = 50%||50%|
|5,000||2,000||1||(2,000/5,000) x 100% x 50% = 20%||20%|
|5,000||2,000||0.5||(2,000/5,000) x 50% x 50% = 10%||10%|
Non-Residential Property with NPDES Permit - Non-marina properties that are regulated through a National Pollutant Discharge Elimination System (NPDES) permit with stormwater management controls:
- Eligible for a credit of 50% if the entire property is covered under the NPDES permit. If only a portion of the property is covered under the NPDES permit partial credit will be awarded.
Marina properties that are regulated through a National Pollutant Discharge Elimination System (NPDES) permit with stormwater management controls and/or that are in good standing with the Maryland Department of Natural Resources Clean Marina Initiative:
- Eligible for a 25% credit as a result of the stormwater management controls in the NPDES permit if the entire property is covered by the NPDES permit. If only a portion of the property is covered partial credit will be awarded.
- Eligible for a 25% credit as a result of being in good standing with the Maryland Department of Natural Resources Clean Marina Initiative if this applies to the entire property. If it only applies to a portion of the property partial credit will be awarded.
- If the marina fits both of these criteria they are eligible for up to a 50% credit.
With the exception of NPDES Permit holders, renewal applications are not required. The WPRF Credit will continue to be applied annually if the stormwater management practice(s) remain in good repair and are functioning properly.
For NPDES Permit holders, a new application should be submitted before the end of the credit’s third year.
All initial applications and any re-submittals must be mailed to:
Anne Arundel County DPW
Bureau of Watershed Protection and Restoration
2662 Riva Road
Annapolis, MD 21401
It is an owner's responsibility to properly operate and maintain their practices to ensure that they are functioning as designed and detailed in the approved credit application.
In addition, the County reserves the right to inspect, at any time, stormwater management practices associated with a credit. Those inspections will be in accordance with an executed Inspection and Maintenance Agreement for Private Stormwater Management or Stormwater Remediation Fee Credit Agreement and will occur at a minimum of once every three years.
The property owner does not need to contact the County to schedule an inspection for Credit compliance.
Failure to maintain and operate the stormwater management practice in strict compliance with County Approved Plans, Maintenance Agreements, Stormwater Remediation FeeCredit Agreement, County Standards, Stormwater Management Practices and Procedures Manual, and/or the 2000 Maryland Stormwater Design Manual, Volumes I and II, and Supplements will result in the loss of the credit. Property owners will be notified if this occurs.
In the event that the property owner transfers the property to a new owner, the WPRF credit cannot be transferred and the credit shall no longer apply towards the WPRF imposed on the property. The new property owner may apply for a WPRF credit by submitting a new WPRF credit application for review.
Property owners with stormwater management practices that have recently been installed may also be eligible for a credit on their property taxes.
To qualify for this program, the application must be filed within 45 days of installation and the practice(s) must not have been installed as a requirement in any State or local law. As a result, practices that were installed to meet stormwater management requirements in a Grading Permit for new development or redevelopment projects are not eligible.
For additional information, see the Stormwater Management Property Tax Credit Program.