WI0700087_Lab Results_20220112

NC DIVISION OF WATER QUALITY
LABORATORY ANALYTICAL RESULTS
5A7 GEOTHERMAL UNDERGROUND INJECTION CONTROL (UIC) WELL
PERMIT NO.: WI0700087
PERMITTEE(S): Ashton -Lewis Lumber
SAMPLE COLLECTION DATE: 01/12/2022
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
East Well Sample Results
< 1
< 1
838
180.0
2.5
59
West Well Sample Results
< 1
< 1
906
190.0
2.3
64
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
East Well Sample Results
<0.02
<0.01
<50
<2.0
1.3
West Well Sample Results
0.68
0.11
<50
<2.0
1.4
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
East Well Sample Results
<5.0
15
380
13
1.6
<10
West Well Sample Results
<5.0
44
<50
14
1.6
<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
East Well Sample Results
290
<2.0
<2.0
220
6.5
West Well Sample Results
330
<2.0
2.1
130
6.5
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