WI0700308_cover letter_20210914

DocuSign Envelope ID: D16C14B3-A68F-47E4-B50E-3CBDFB5A505C
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH
Director
Timothy and Laural Washburn
518 Hollywood Blvd.
Havelock, North Carolina 28532
NORTH CAROLINA
Environmental Quality
September 14, 2021
SUBJECT: Groundwater Sampling Results
UIC Permit No. WI0700308
Issued to Timothy and Laural Washburn
Havelock, Craven County, North Carolina
Dear Mr. and Mrs. Washburn:
Staff from the Washington Regional Office of the Water Quality Regional Operations
Section collected samples of the influent (supply well) and effluent (injection well) from your
geothermal heat pump system on July 27, 2021. The samples were analyzed for metals, nutrients,
and other inorganic constituents by the Division of Water Resources laboratory. A summary table
of the analytical results, as well as the laboratory reports, field sampling forms, and definitions of
laboratory data qualifiers are attached to this letter. The following constituents were detected
above state groundwater standards in both samples from your system:
Parameter
Units
NC
Groundwater
Standard
Results
Iron
Micrograms per Liter
(ug/L)
300
2900 (supply well -influent)
2900(injection well -effluent)
Manganese
Micrograms per Liter
(ug/L)
50
90 (supply well -influent)
90 (injection well -effluent)
D_E
iO i'TH CAROLINA
oeparnnem el Enwmnmenul awn
North Carolina Department of Environmental Quality I Division of Water Resources
Washington Regional Office 1943 Washington Square Mall I Washington, North Carolina 27889
252,946.6481

DocuSign Envelope ID: D16C14B3-A68F-47E4-B50E-3CBDFB5A505C
Timothy and Laural Washburn
September 14, 2021
Page 2 of 2
These exceedances should not affect the use of the wells for your geothermal heat pump
system; however, it is recommended before using the water from these wells for personal
consumption that you consult with the Craven County Environmental Health Depailiuent. If you
have any questions regarding the sampling results or your permit, please feel free to contact me at
[phone].
Sincerely,
Dwight Randy Sipe, P.G., Hydrogeologist
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Attachments
cc: Shristi Shrestha — DWR Groundwater Resources Section (electronic copy)
Laserfiche
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North Carolina Department of Environmental Quality I Division of Water Resources
Washington Regional Office 1943 Washington Square Mall I Washington, North Carolina 27889
252.946.6481