PWD Development Review

Worksheet 1 - Existing Resources and Site Analysis (ERSA) Introduction


IMPORTANT NOTICE!  STORMWATER PLAN REVIEW FEES NOW IN EFFECT (read more)


The Existing Resources and Site Analysis (ERSA) worksheet and its associated attachments (map, concept plan or preliminary plat and 1 color photograph from each face of the parcel) are easily submitted online below. Attachments can be submitted by mail or in person. However, please note that PWD will require additional processing time to digitize these submittal components for review. Upon receipt of a complete ERSA PWD will review the submittal. If necessary, PWD will schedule a meeting with the project applicant.

On the next web page, you will be asked to enter contact information and site information. Upon completion of this first page, you will be given a Project Tracking Number. This number can be used to track the review process through this website. It is updated daily, so please check the site for the most recent information regarding your project. Please note, you must click the “final submit” button at the end of the process to submit you ERSA for review. PWD will only review complete submittals.

If you have questions or experience a problem submitting your information online please contact the Philadelphia Water Department Stormwater Program at 215-685-6387 or email the Development Review Coordinator.


What is an ERSA and how do I submit one?

An ERSA contains basic site and project information regarding existing site conditions along with an existing conditions site plan, conceptual plan and site photographs. A checklist for elements to be included in the conceptual and existing conditions plan is provided below.

  1. Hit “continue” button below
  2. Complete the online form with site and contact information. Upon completion of this first page, you will be given a Project Tracking Number. This number can be used to track the review process through this website. It is updated daily, so please use this number to check the site for the most recent information regarding your project.
  3. You may either save the form as a draft (if you are not ready to submit) or select "continue" to add attachments.
  4. Upload the following items: (Note hardcopy attachments can be submitted by mail or in person, however, PWD will require additional processing time to digitize paper submittals.)

    A. Existing Resource and Site Analysis Map containing the following:
    Checkmark - cannot be checked online Engineer Name, date and project title
    Checkmark - cannot be checked online Name of registered owner
    Checkmark - cannot be checked online If residential, indicate development type (condo, fee simple, etc.)
    Checkmark - cannot be checked online Site Address
    Checkmark - cannot be checked online North arrow, legend (identify all line types and symbols used clearly) and graphical scale (1"=10',20',30',40',50',60' or 100')
    Checkmark - cannot be checked online Existing Street lines and street names & confirmed street boundaries
    Checkmark - cannot be checked online Vicinity Map including watershed(s) and sub watershed(s)
    Checkmark - cannot be checked online Property lines
    Checkmark - cannot be checked online Proposed lot-lines and lot identification numbers
    Checkmark - cannot be checked online Location and boundaries of all existing site improvements and improvements on adjacent land within 25 feet of the property line
    Checkmark - cannot be checked online Outlines of all existing structures within 25’ of property line
    Checkmark - cannot be checked online Location of all existing utilities (water, sewer, stormwater) above and below ground
    Checkmark - cannot be checked online Identify the nearest watercourses / water bodies on the map (within 100 feet)
    Checkmark - cannot be checked online Existing topography of site (contours, sub-basins, etc.) in 2 foot contour intervals on-site and on adjacent lands within 25 feet of the property line and on the full width of abutting public lands, and private rights-of-way and easement(s)
    Checkmark - cannot be checked online Note any special features of the site (natural depressions, natural berms, views, etc.)
    Checkmark - cannot be checked online Show the type and extent of vegetation, and the location of any trees that measure greater than 6 inches diameter at breast height and note their species
    Checkmark - cannot be checked online Location and boundaries of all existing right-of-ways or easements

    B. Site Plan/Concept Plan containing the following:
    Checkmark - cannot be checked online Engineer Name, date and project title
    Checkmark - cannot be checked online Name of owner
    Checkmark - cannot be checked online North arrow, legend (identify all line types, hatch types and symbols used clearly) and graphical scale (1"=10',20',30',40',50',60' or 100')
    Checkmark - cannot be checked online Clearly delineate and label the proposed Limit of disturbance (LOD). Include all utility connections within the LOD
    Checkmark - cannot be checked online Site Address
    Checkmark - cannot be checked online Property lines, all metes, bounds, boundaries, dimensions, building lines and set-backs
    Checkmark - cannot be checked online Street lines, street names, lot names, easements, other land divisions, and their purposes and confirmed locations.
    Checkmark - cannot be checked online Location/outline of all existing structures to remain within 25’ of property line.
    Checkmark - cannot be checked online Proposed site contours (distinguish between existing and proposed)
    Checkmark - cannot be checked online All building lines or street set-back lines and distances to other buildings on the same lot
    Checkmark - cannot be checked online Proposed lot-lines and lot identification numbers, dimensions and areas
    Checkmark - cannot be checked online Existing and proposed right-of-ways,easements, cartway widths for all streets and private roads, and drainage right-of-ways
    Checkmark - cannot be checked online Location and dimensions of all driveways, curb cuts, and off-street parking lots, with distances from lot lines
    Checkmark - cannot be checked online Vicinity Map including watershed(s) and sub watershed(s)
    Checkmark - cannot be checked online Clearly identify all existing and proposed site improvements
    Checkmark - cannot be checked online Location of all existing utilities (water, sewer, & stormwater). Sewer connections made directly into manholes are not permitted
    Checkmark - cannot be checked online Note any vegetation identified for preservation and planned landscape areas
    Checkmark - cannot be checked online Show all proposed water, sanitary sewer, fire utility, and stormwater connections (a water/meter pit must be shown within 35’ of the property/house/right-of-way line)
    Checkmark - cannot be checked online Clearly indicate area where stormwater will be managed and show safe overflow connections
    Checkmark - cannot be checked online All infiltration areas must be located at least 10’ from all property lines
    Checkmark - cannot be checked online Show all roof and yard drains and their connections to infiltration/detention basins or sewers
    Checkmark - cannot be checked online Approximate loading ratio of 5:1 for directly connected impervious area (DCIA) to infiltration area footprint and 8:1 for drainage area to infiltration area footprint
    Checkmark - cannot be checked online Show extent of floodplain in relation to the project
    Checkmark - cannot be checked online Depict post-development hydrology of the site with flow lines including discharge points from property and type of discharge (diffused, concentrated, piped, etc)

    C. Site Photos (Provide one color photograph from each face of the parcel looking into the site.) (Please submit in PDF, JPG or BMP format)

  5. Review the files you have attached and the information you entered into the online form and click the “Final Submit” button. Please note, you must click the “final submit” button at the end of the process to submit your ERSA for review. PWD will only review complete submittals.
  6. Once the “Final Submit” button has been clicked, the worksheet with all the attachments is electronically sent to the Development Review Coordinator. Next, an e-mail notification is sent to the applicant stating that the ERSA was received and whether the submittal was complete or incomplete. Once an ERSA submittal is complete, PWD staff will review and comment on the conceptual plan. If necessary, a meeting with the project applicant and PWD Development Services Committee will be scheduled. Meeting times are available on the first and third Wednesday of each month.

What Happens Next?

  1. The applicant will submit payment of $600 for conceptual plan review to PWD prior to conceptual plan approval [Click here for more information].
  2. PWD will provide the applicant with stamped hardcopies of PWD Comments (Checklist A) and the Concept Plan reviewed for inclusion with their Zoning Application. An electronic copy of the stamped Checklist A is distributed to City Planning, PWD and the applicant.
  3. The applicant will submit a full set of plans – see PWD Standard Submittal to make sure the Post Construction Stormwater Management Plan is complete.
  4. Refer to the following flowchart for more information about the development process in Philadelphia:

    Development Review Process Flowchart