Erosion and Sediment Pollution Control Program Manual.pdf

ii. The siting and function of any proposed E&S BMP requiring an appreciable
amount of excavation.
iii. The siting and function of any permanent stormwater BMP, particularly those
proposing infiltration.
2. Narrative: To support the data tabulated in the NPDES application, the narrative will need to
thoroughly address all the “potential pollutants”.
a. The applicant will need to explain how these pollutants are transported, either insuspension
as particulates, or in-solution as solutes, and whether traditional E&S and/or
stormwater management BMPs, such as silt fence, inlet protection, etc. are capable or
adequate to protect receiving waters. More discussion on physical forms of stormwater
pollutants, including particulates and solutes, can be found in Chapter 2 of the
Pennsylvania Stormwater Best Management Practices Manual.
b. The applicant may need to provide the results of a leachability test, such as a Synthetic
Precipitate Leachate Procedure (SPLP), to address the migration potential of
contaminants engrained in soils. This may be of particular interest in any areas
proposed for infiltration for post construction stormwater management.
c. For those projects where traditional BMPs are found to be inadequate, additional BMPs
addressing the contaminants of concern should be proposed. This should be addressed
in the application narrative.
d. A summary of the site characterization/remediation plan and its ramifications on the E&S
and PCSM plans.
3. A specific construction sequence accounting for the items listed above and earlier in this section
is essential for any cleanup site.
4. As mentioned earlier in this section, it is imperative that all consultants and contractors are on
the same page with respect to bridging the gap between site remediation and redevelopment.
In some cases, it may be beneficial to have a joint meeting either prior to or during the permit
review. However, it is the applicant’s responsibility — usually the landowner — to ensure that
the project team is properly informed.
This above information should be supplied as part of the initial submission to the conservation district
and/or Department. Addressing these concerns early in the permit process can significantly reduce
delays.
The Department encourages pre-application meetings with both Waterways Engineering and Wetlands
and/or Environmental Cleanup Program Staff for any contaminated site seeking additional guidance or
to discuss any special precautions or needs.
AUTHOR AND ACKNOWLEDGEMENTS:
Domenic Rocco, P.E., CPESC, CPSWQ
Chief, Stormwater Section
PA Department of Environmental Protection
Waterways Engineering and Wetlands Program
Special thanks to my Department colleagues, Christopher Smith and Darl Rosenquest, for their
assistance in formulating this document.
363-2134-008 / March 31, 2012 / Page 341