System Extension Permits (SEP) Process

• Database Search Request
• Database Summary Sheet
• Environmental Questionnaire
• Hydraulic Planning Analysis -
  Amendment

• High/Low Domestic Pressures
• HPA Complexity Ratings
• Hazen-Williams Formula
• Hydraulic Grades
• Hydraulic Information Available
  from WSSC
• Manning Formula
• Sketch Color Codes

• Approved Fee Chart

Submittal Of Environmental Questionnaire And Database Search

  Step 3  

The applicant must complete and submit an Environmental Questionnaire. A contamination database search, conducted pursuant to ASTM Standard E-1527, is also required under one of the following options:

• Submit a database search conducted by a professional in good standing, and complete a Database Search Summary Form.
• - or -
• Request that WSSC conduct the database search at least 30 days prior to the submission of the Review for System Integrity Package (Step 4). A request is made by submitting a Database Search Request Form and a Database Search Fee.

   

• Submit a Phase I Environmental Site Assessment (ESA) report conducted in accordance with ASTM Standard E-1527 by a professional in good standing.  

This information should be provided as early as possible, but it must be submitted no later than with the design package for review purposes. WSSC reserves the right to require additional investigations. At the applicant's request, WSSC may provide conditional approval of the design prior to complete resolution of contamination concerns if the applicant accepts any and all risks associated with such conditional approval. In all cases, Release for Service (Step 11) will not be issued until all contamination impacts are completely resolved.