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Wholesale Purchaser 2020 CCR

2021-06-24 13:00:00

Greenville Utilities Commission
Consumer Confidence Report Data - 2020
SUBSTANCES                          ( Measuring Units)Highest Level Allowed [MCL]Highest Level Detected Range DetectedIdeal Goals [MCLG]Description and Origin of SubstanceHealth Effects Language
Asbestos (MFL)7<0.16n/a0Decay of abestos cement water mains; erosion of natural deposits 
Beta Emitters (pCi/L)  Last analyzed 2015501818.0 - 4.00Decay of natural and man-made radioactive deposits. 
Bromate (ppb)10 (Running Annual Average)<1.0 (Running Annual Average)1.3 - <1.0 (Highest and lowest site value)0By-product of drinking water disinfection. 
Chloramines (ppm)4 (Running Annual Average)2.94 (System Average)4.6 - 1.1 (Highest and lowest site value)4Water additive used to control microbes 
Chlorine (ppm)4 (Running Annual Average)2.7  (System Average)3.8 - 1.1 (Highest and lowest site value)4Water additive used to control microbes 
Fluoride (ppm)40.860.86 - 0.674Natural occurring mineral; also added to water to promote dental health. 
Total Organic Carbon Treated (ppm)TT no violation3.33.3 - 2.6  (Highest and lowest site value)naNaturally present in the environment. 
Turbidity (NTU)1.0 and 95% of samples below 0.3 (Treatment Technique)0.16 and 100 % of samples below 0.3n/a0.3Turbidity is a measure of cloudiness in water. It may be caused by inorganic soil particles or fragments of organic matter that can interfere with treatment. 
Source Water Assessment Program (SWAP) Results     
The North Carolina Department of Environment and Natural Resources (DENR), Public Water Supply (PWS) section, 
Sources Water Assessment Program (SWAP) conducted assessments for all drinking water sources across North Carolina. 
The purpose of the assessments was to determine the susceptibility of each drinking water sources (well or surface water  
intake) to Potential Contaminants Sources (PCSs). The results of the assessment are available in the SWAP Assessment 
Reports that include maps, background information and a relative susceptibility rating of Higher, Moderate or Lower. 
The relative susceptibility rating of each source for Greenville Utilities Commission was determined by combining the contaminant 
rating (number and location of PCSs within the assessment area) and the inherent vulnerability rating (i.e., characteristics 
or existing conditions of the well or watershed and its delineated assessment area.). The assessment findings are 
summarized in the table below:      
 Susceptibility of Sources to Potential Contaminant Sources (PCSs)     
Source NameSusceptibility Rating    
WSW WellModerate    
EPW WellModerate    
SSW WellModerate    
The complete SWAP Assessment report for Greenville Utilities Commission may be viewed on the Web at:      
To obtain a printed copy of this report, please mail a written request to: Source Water Program -  Report Request 
1634 Mail Service Center, Raleigh NC 27699-1634, or email request to   
If you have any questions about the SWAP report please contact the Source Water Assessment by phone at 919-715-2633. 
Susceptibility rating of "higher" does not imply poor water quality, only the systems' potential to become contaminated 
by PCS's in the assessment area.      
Unregulated Contaminant Monitoring Rule 4 Data  
SubstancesHighest Level Detected RangeDescription and Origin Substance   
Anatoxin-a (ug/L)<0.030.03Cyanobacteria; Source Water   
Cylindrospermopsin (ug/L)<0.090.09Cyanobacteria; Source Water   
Total Microcystins & Nodularins (ug/L)<0.30.3Cyanobacteria; Source Water   


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