Revised Short List of Petroleum Products (PDF) see Table III-5 in 261-0300-101 (eLibrary)
Synthetic Precipitation Leaching Procedure (SPLP)
Groundwater Monitoring Guidance Manual (PDF) 261-0300-101 (eLibrary)
Implementation Guidance for Evaluating Wastewater Discharges to Drainage Ditches and Swales (PDF) 391-2000-014 (eLibrary)
Direct Push Technology Memorandum (PDF)
Spreadsheet of Systematic Random Sampling (Excel) (Updated – June 2018)
Help file for the Systematic Random Sampling Workbook (PDF) (Updated – June 2018)
Chemical and Physical Properties Database
Species of Concern
The listing maintained by the Pennsylvania Natural Heritage Program (PNHP) contains all species currently listed as endangered, threatened, or rare, and candidates for such listing (indicated by the "Proposed State Status" column).
U.S. Environmental Protection Agency National Center for Environmental Publication and Information (NCEPI)
Drinking Water Advisories (PDF)
National Technical Information Services (NTIS)
American Society for Testing and Materials (ASTM) publications
Interstate Technology & Regulatory Council (ITRC)
Protect clean air, clean water, and public health and conserve working farms, forests, and natural lands.