Map and Data Resources

Explore and trace municipal wastewater and stormwater infrastructure data in the ALCOSAN service area.

Map and download high-resolution rainfall data from local gauges and NEXRAD radar in Allegheny County.

View projects implemented by municipalities for compliance with Phase II of the Consent Order Agreement.

Explore results of the Baseline Due Diligence Phase 2 COA analysis for Exhibit A, B, and C communities on a map.

See where your wastewater goes when you flush!

View the legacy Sewer Atlas web mapping application.

View the legacy pre-baseline due-diligence Exhibit A Explorer mapping application.

View the legacy pre-baseline due-diligence Exhibit B Explorer mapping application.