Erosion and sediment (E&S) control required for all earth disturbance in Allegheny County under 25 Pa. Code Ch. 102. ACHD and municipalities enforce with NPDES Construction Permits for disturbances of 1+ acre.
Under PA Chapter 102, any earth disturbance activity requires a written E&S plan. Disturbances under 5,000 sq ft need basic best management practices (silt fence, stabilized entrances). Projects between 5,000 sq ft and 1 acre require a written plan kept on site. Projects disturbing 1+ acre require a full NPDES Construction Stormwater Permit through ACHD (delegated from PA DEP) including permanent post-construction stormwater management. Steep slope development (over 15% grade) common in Pittsburgh hilltops requires enhanced controls. Landslide-prone zones identified by PA Geological Survey trigger additional review.
PA Clean Streams Act violations: up to 25,000 dollars per day. Stop-work orders issued for unauthorized discharge. Restoration and mitigation ordered.
Allegheny County, PA
ACHD Article XXI Part F sets countywide commercial/industrial noise limits: 65 dBA day / 55 dBA night at receiving residential property lines. This is one of...
Allegheny County, PA
Pittsburgh International Airport (PIT) sits in Allegheny County and operates Class C airspace. Aircraft noise is federally preempted under 49 U.S.C. §40103 (...
Allegheny County, PA
Vehicle noise enforced under PA Vehicle Code Title 75 §4523 (muffler required) statewide. No countywide Allegheny ordinance. Loud exhaust, modified mufflers,...
Allegheny County, PA
Amplified music is regulated municipally, not countywide. Pittsburgh Code §601.04 prohibits amplified sound audible 100 feet from source after 10 PM. ACHD Ar...
Allegheny County, PA
Allegheny County has no countywide leaf-blower ordinance. A few municipalities (notably Mt. Lebanon and Sewickley) restrict gas-powered blower hours; Pittsbu...
Allegheny County, PA
Street parking rules vary by municipality across Allegheny County. Pittsburgh Parking Authority enforces metered zones, residential permit parking (RPP), and...
See how Allegheny County's erosion control rules stack up against other locations.
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