WI0700271_Lab Analytical Results_20220518

NC DIVISION OF WATER RESOURCES
LABORATORY ANALYTICAL RESULTS
GEOTHERMAL HEATING/COOLING RETURN WELL
PERMIT NO.: WI0700271
PERMITTEE(S): Dale and Maree Benson
SAMPLE COLLECTION DATE: 3/15/22
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 MCL and/or EPA Standard
NC MCL = < 1
NC MCL = 1
NC MCL = 500
NC MCL = 250
NC MCL = 2
NC MCL = 250
EPA SDWS = 500
EPA SDWS = 250
EPA PDWS = 4.0
EPA SDWS = 250
Influent Sample Results
< 1
<1
493
7.2
0.64
7.1
Effluent Sample Results
< 1
<1
402
7.3
0.64
6.9
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 MCL and/or EPA Standard
NC MCL = 11
NC MCL = 1
NS
NS
NC MCL = 10
NS
EPA PDWS = 11
EPA PDWS = 1
EPA SDWS = 50 to 200
EPA PDWS = 10
Influent Sample Results
<0.02
<0.01
295
65
<2.0
90
Effluent Sample Results
<0.02
<0.01
304
74
<2.0
92
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 MCL and/or EPA Standard
NC MCL = 10
NC MCL = 1000
NC MCL = 300
NS
NS
NC MCL = 50
EPA PDWS = 100
EPA SDWS = 1000; PDWS = 1300
EPA SDWS = 300
EPA SDWS = 50
Influent Sample Results
<5.0
77
<50
7
17
<10
Effluent Sample Results
<5.0
280
<50
7.2
18
<10
Parameter
Sodium, Na
Nickel, Ni
Lead, Pb
Zinc, Zn
pH (field)
units
mg/L
pg/L
pg/L
pg/L
units
NC MCL and/or EPA Standard
NS
NC MCL = 100
NC MCL = 15
NC MCL = 1000
NC MCL = 6.5-8.5
EPA PDWS = 15
EPA SDWS = 5000
EPA SDWS = 6.5 to 8.5
Influent Sample Results
12
<2.0
9
190
6
Effluent Sample Results
13
<2.0
16
61
6
NC MCL = North Carolina Maximum Contamination Limits 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