WQ0002284_Correspondence_19890807

DIVISION OF ENVIRONMENTAL MANAGEMENT
Groundwater Section
August 7, 1989
MEMORANDUM
TO: Bill Reid
FROM: Richard R. Powers
SUBJECT: Kinnakeet Shores WWTP
220,000 GPD Expansion
Dare County
GW# 88338 WQ Permit No. 15514
This office has reviewed the revised data, location, and modeling of the above
site. We have no objection to issuance of an approval for expansion provided
that:
1. Four (4) monitor wells shall be constructed on the Perimeter
of Compliance boundary (250 feet from the edge of the
source). As this office is not satisfied with the proposed
monitor locations provided by the consultant, the
location of the wells must be approved by the Washington
Regional Office prior to their construction. It is our
intent to locate the wells in such a manner that one
upgradient and three downgradient will be provided for
groundwater monitoring of the site.
2. The four monitor wells shall be sampled initially after
construction, then every January, April, July, and October
thereafter. Parameters to be analyzed should include, but
not be limited to:
Nitrates
Total Ammonia
Total Dissolved Solids
pH
Total Organic Carbon
Chlorides
Orthophosphates
Total Organic Halides (initially and then in Octobers only)
Total Coliforms
Water Levels (prior to sampling)
3. A piezometer well shall be constructed in the center of the
four rotary distributor cluster. The piezometer shall be
monitored for water level elevations only. Water levels
shall be obtained and reported every January, April, May,
June, July, August, September, and October.

Bill Reid
Page 2
August 7, 1989
4. The measuring points on all wells shall be surveyed to the
nearest 0.01 foot above mean sea level and those measuring
point.elevations provided to the Department.
The permit should reflect all the standard clauses for groundwater protection.
All analysis and water level reporting should be on the GW-59 report forms.
A question was raised in discussion with Rudy Smithwick concerning the
establishment of a review boundary. If a review boundary is necessary, then the
four monitor wells should be moved to that point instead of the Perimeter of
Compliance. Rinnakeet Shores may also need to develop a conceptual remedial
action plan for addressing the potential of failure of the disposal method.
Please contact me for any further information.
RRP:ekw
cc: Jim Mulligan
Roger Thorpe
Alton Hodge