Aspinwall Pump Station to Lanpher Reservoir Rising Main
The Lanpher Rising Main has served Pittsburgh Water for more than 100 years. Pittsburgh Water is proposing to construct a redundant rising water main to the Lanpher Reservoir located in Shaler Township. The new water main will commence at the existing Aspinwall Pump Station located at the Aspinwall Water Treatment Plant and extend nearly 4.5 miles to the Lanpher Reservoir. Sci-Tek provided the environmental services:
- PHASE I ENVIRONMENTAL SITE ASSESSMENT SCREENING – The Phase I ESA screening researched and summarized readily available current and historical information about the project corridor, an alternate corridor, and adjacent properties to identify potential recognized environmental conditions.
- PHASE I ENVIRONMENTAL SITE ASSESSMENT UPDATE – After selection of the final water main route, the Phase I Screening ESA was updated by performance of the following supplemental tasks:
- Task 1 – Preliminary Soil Screening and Geologic Characterization
- Task 2 – Interviews
- Task 3 – Deed Review
- Task 4 – PADEP file review
- Task 5 – Limited Phase II ESA
- Task 6 – Final Report Phase II Report
- GIS MAPPING – The ESA included GIS mapping of environmental concerns relative to historical conditions and features.
- PHASE II ENVIRONMENTAL SITE ASSESSMENT – Sci-Tek provided a Phase II Subsurface Investigation to address recognized environmental conditions in the selected corridor. The Phase II included ground-penetrating radar (GPR), hollow-stem auger borehole drilling along the route, and soil screening and sampling. Subsurface historic fill and soil samples were collected for laboratory analysis of potential contaminants, VOCs, PAHSs, PCBs, chloride, sulfur, heavy metals and geotechnical parameters. The analytical results were reviewed against PADEP Clean Fill Parameters to access soil re-usability and safety.