The Pennsylvania Stormwater Management Act of 1978 (PDF), or Act 167, requires every county to prepare and adopt a watershed stormwater management plan in consultation with the municipalities in the county.
Counties must submit their watershed stormwater management plans to DEP for approval, and municipalities must enact ordinances consistent with the plans.
The location, design and construction of storm water management systems, obstruction removals, flood control projects, subdivisions and major land developments, highways and transportation facilities, public utility services and facilities must be consistent with the stormwater management plan.
Act 167 requires counties to review and revise their watershed stormwater management plans at least every five years.
For more information on Act 167 implementation, contact the Bureau of Clean Water at 717-787-5017.