Chesapeake Bay Watershed — Riparian Buffer & E&S Control (25 Pa. Code Ch. 102) (PA)
Tracked preemption from the Pennsylvania overlay bundle.
Overview
← All state preemptionsPennsylvania overlay roll-upPennsylvania zoning wikiPennsylvania building codesFederal overlaysGlossaryFederal-conflict: Yes
Effective
2010-11-19
Sunset
—
Authority
state
Scope
state:PA
Other Pennsylvania preemptions
Pennsylvania Act 13 — Oil & Gas Operational Preemption (58 Pa.C.S. §3303)Pennsylvania Natural Diversity Inventory (PNDI) Environmental ReviewMPC §503(1.1) — Manufactured / Industrialized Housing PreemptionPennsylvania Uniform Construction Code (UCC) — Building Code PreemptionFirearms — Local Regulation Preemption (18 Pa.C.S. §6120)Pennsylvania History Code — State Historic Preservation Review (Pa.C.S. Title 37)Pennsylvania Agricultural Area Security Law — Agricultural Security Areas (Act 43 / Act 38 of 2005)Pennsylvania Coastal Zone Management Program — Lake Erie & Delaware Estuary
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
AND
city.is_in_chesapeake_bay_watershed==True
Preempted fields
2 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
review_type | require | dep_chapter_102_e_and_s_npdes_permit | Earth disturbance ≥1 acre requires DEP Chapter 102 NPDES permit; ≥5 acres in special-protection waters triggers heightened review. |
review_type | require | riparian_buffer_or_riparian_forest_buffer | 150-ft riparian forest buffer (or equivalent functional substitute) is required for earth disturbance adjacent to Exceptional Value (EV) and High Quality (HQ) waters per 25 Pa. Code §102.14. Chesapeake Bay TMDL implementation also strongly incentivizes buffer adoption in non-EV/HQ portions of the watershed. |
Citation
Authority source
25 Pa. Code Chapter 102 — Erosion and Sediment Control (riparian buffer requirements at §102.14, codified at 40 Pa.B. 6638, Nov. 19, 2010); Chesapeake Bay Watershed Implementation Plan (WIP) Phase III, 2019
§ 25 Pa. Code §§102.4, 102.14
Research notes
Chesapeake Bay watershed in PA covers approximately half the state (Susquehanna and Potomac basins). Federal conflict check enabled because the buffer requirement implements both state law and the federal Chesapeake Bay TMDL under Clean Water Act §303(d). Municipal zoning ordinances may not authorize development that contradicts the Chapter 102 buffer rule.