WI0700323_Lab Analytical Results_20220621

NC DIVISION OF WATER RESOURCES
LABORATORY ANALYTICAL RESULTS
GEOTHERMAL HEATING/COOLING RETURN WELL
PERMIT NO.: WI0700323
PERMITTEE(S): Bernard and Ella Dougherty
SAMPLE COLLECTION DATE: 4/27/22
Parameter
Fecal Coliform
Total Coliform
Total Dissolved Solids
Chloride, CI
Fluoride, FL
Sulfate, SO4
units
CFU/100m1
CFU/100m1
mg/L
mg/L
mg/L
mg/L
NC GWS and/or EPA Standard
NC GWS = < 1
NC GWS = < 1
NC GWS = 500
NC GWS = 250
NC GWS = 2
NC GWS = 250
EPA SDWS = 500
EPA SDWS = 250
EPA PDWS = 4.0
EPA SDWS = 250
Influent Sample Results
<1
<1
282
6.2
<0.4
3.6
Effluent Sample Results
<1
<1
283
6.2
<0.4
3.5
Parameter
Nitrate + Nitrite
Nitrite
Hardness as CaCO3
(by Calculation) *
Aluminum, Al
Arsenic, As
Calcium, Ca
units
mg/L as N
mg/L as N
mg/L as CaCO3
pg/L
pg/L
mg/L
NC GWS and/or EPA Standard
NC GWS = 11
NC GWS = 1
NS
NS
NC GWS = 10
NS
EPA PDWS = 11
EPA PDWS = 1
EPA SDWS = 50 to 200
EPA PDWS = 10
Influent Sample Results
<0.1
<0.01
230
57
<2.0
88
Effluent Sample Results
<0.02
<0.01
235
56
<2.0
90
Parameter
Chromium, Cr
Copper, Cu
Iron, Fe
Potassium, K
Magnesium, Mg
Manganese, Mn
units
pg/L
pg/L
pg/L
mg/L
mg/L
pg/L
NC GWS and/or EPA Standard
NC GWS = 10
NC GWS = 1000
NC GWS = 300
NS
NS
NC GWS = 50
EPA PDWS = 100
EPA SDWS = 1000; PDWS = 1300
EPA SDWS = 300
EPA SDWS = 50
Influent Sample Results
<5.0
4.3
4400
1.4
2.5
120
Effluent Sample Results
<5.0
14
2300
1.4
2.5
240
Parameter
Sodium, Na
Nickel, Ni
Lead, Pb
Zinc, Zn
pH (field)
units
mg/L
pg/L
pg/L
pg/L
units
NC GWS and/or EPA Standard
NS
NC GWS = 100
NC GWS = 15
NC GWS = 1000
NC GWS = 6.5-8.5
EPA PDWS = 15
EPA SDWS = 5000
EPA SDWS = 6.5 to 8.5
Influent Sample Results
7.0
<2.0
<2.0
<10
6.5
Effluent Sample Results
7.0
<2.0
<2.0
200
6.5
NC GWS = North Carolina Groundwater Standards per 15A NCAC 2L .0200
EPA PDWS = Environmental Protection Agency Primary Drinking Water Standards
EPA SDWS = Environmental Protection Agency Secondary Drinking Water Standards
NS = No Standard
* Calculation performed by WaRO