Act 167, also known as the Pennsylvania Stormwater Management Act, was passed in 1978. Under Act 167, counties in the Commonwealth were to develop comprehensive stormwater management plans for each watershed within the county. The planning process is done with input from a Watershed Plan Advisory Committee (WPAC) and once approved by the Department of Environmental Protection (DEP), municipalities are required to implement the plan through local ordinances.
The practice of stormwater management has evolved as new information, technologies, and improved understanding of the relationship between human activity and the impacts of stormwater runoff have become available. In order to keep pace with the evolving practice of stormwater management, so too has the content and focus of plans produced under Act 167.
The Dauphin County Conservation District, as the county agency designated to coordinate Act 167 planning in
The first plan in
The Conservation District has finished a final plan for
In incorporating existing plans into the county wide plan, the release rates for existing plans remained the same. Release rates for Spring Creek (East), Burd and Laurel runs were developed for the 2, 10 and 25 year storms. the 1, 50 and 100 year storm release rates were set at 100% county wide. The table below summarizes current release rates for all watersheds in
RELEASE RATE REFERENCE TABLE
BLUE SHADING – MODELLING DONE FOR 2, 10 AND 25 YEAR STORMS IN PREVIOUS PLANS
GREEN SHADING – MODELLING DONE FOR 2, 10 AND 25 YEAR STORMS IN THE COUNTY WIDE PLAN
ALL WATERSHEDS – 1, 50 AND 100 YEAR STORM RELEASE RATES SET AS PART OF THE COUNTY WIDE PLAN
Click on the watershed name below to view the Release Rate Map
Note: The map for Wiconisco Creek does not show realease Rates, only modeled sub areas.
Release rates for all storm events in the Wiconisco Creek Watershed are set at 100%.
Watershed | Plan | 1 Year Storm | 2, 10, and 25 Year Strom | 50 and 100 Year Storm |
Mahantango Creek | County Wide | 100% | 100% | 100% |
Wiconisco Creek | Wiconisco | 100% | 100% | 100% |
Armstrong Creek | Mid Dauphin | 100% | VARIES - See Plan | 100% |
Powells Creek | Mid Dauphin | 100% | VARIES- See Plan | 100% |
Clark Creek | Mid Dauphin | 100% | VARIES - See Plan | 100% |
Stony Creek | Mid Dauphin | 100% | VARIES - See Plan | 100% |
Fishing Creek | Mid Dauphin | 100% | VARIES - See Plan | 100% |
Paxton Creek | Paxton Creek | 100% | VARIES - See Plan | 100% |
Spring Creek (West) | Spring Creek | 100% | VARIES - See Plan | 100% |
Beaver Creek | Multi Creek | 100% | VARIES - See Plan | 100% |
Manada Creek | Multi Creek | 100% | VARIES - See Plan | 100% |
Bow Creek | Multi Creek | 100% | VARIES - See Plan | 100% |
Kellock Run | Multi Creek | 100% | VARIES - See Plan | 100% |
Burd Run | County Wide | 100% | VARIES - See Plan | 100% |
Laurel Run | County Wide | 100% | VARIES - See Plan | 100% |
Spring Creek (East) | County Wide | 100% | VARIES - See Plan | 100% |
Conewago Creek | County Wide | 100% | 100% | 100% |
Tributaries to Susquehanna River | County Wide | 100% | 100% | 100% |
Tributaries to Swatara Creek | County Wide | 100% | 100% | 100% |
The water quality and volume standards in all existing plans was replaced by the stormwater management standards found in the Pennsylvania Stormwater Best Management Practices Manual. This brings all of
Act 167 plans are developed with input from three formed committees:
All municipalities were invited to have representation during the plan development process. In addition, all meetings were announced to each municipality. Each municipality also received meeting summaries throughout the process.
Dauphin County Stormwater Management Plan (Act 167)
The links below contain information from the County Wide Stormwater Managment Plan only.
Appendices and plates contain information collected for the county wide plan.
Soils and Land use maps are for Spring Creek (East), Burd Run, and Laurel Run only.
Click here for the Dauphin County Stormwater Management Plan.
Click here for the Dauphin County Model Stormwater Management Ordinance.
Click here for Appendix D Problem Areas and Obstructions.
Click here for Plate 1 - Hydrologic Soil Map.
Click here for Plate 2 - 2005 Existing Land Use Map.
Click here for Plate 3 - Full Buildout - Future Land Use Map.
Click here for Plate 4 - Laurel Run and Burd Run Watershed Release Rates Map.
Click here for Plate 5 - Spring Creek Watershed Release Rates Map.
Click here for Plate 6 - Problem Areas and Obstructions in Northern Dauphin Map.
Click here for Plate 7 - Problem Areas and Obstructions in Southern Dauphin Map.
1451 Peters Mountain Road Dauphin PA 17018 phone: 717-921-8100