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Westfield (IN5229009) 2025 Water Quality Data

The chart below gives you a quick look at some of the substances the EPA requires Citizens to test for. The contaminant is listed to the left, followed by the maximum amount allowed by regulations, then the amount that we found in our water. The tests are done on treated finished water. See Definitions of Terms for an explanation of terms used in this chart.

Citizens Water of Westfield

Consumer Confidence Report Data 2025

REGULATED CONTAMINANTS
Contaminant MCLG MCL Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Barium (ppm) 2 ppm 2 ppm 0.21 ppm 0.31 ppm 0.072 - 0.31 ppm YES Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits
Chromium (ppb) 100 ppb 100 ppb 0.80 ppb 2.3 ppb ND - 2.3 ppb YES Discharge from steel and pulp mills; Erosion of natural deposits
Fluoride (ppm) 4 ppm 4 ppm 0.55 ppm 0.74 ppm 0.43 - 0.74 ppm YES Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories
Nitrate (ppm) 10 ppm 10 ppm 0.31 ppm 2.49 ppm ND - 2.49 ppm YES Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits
E coli 0 1 ND ND ND YES Human and animal fecal waste
Total Coliforms  N/A 5.0% (TT) N/A 2.2% during the month of August N/A YES Naturally present in the environment
Combined Radium (-226 & -228) [2025 data] 0 5 pCi/L 0.57 pCi/L 1.1 pCi/L 0.28 - 1.1 pCi/L YES Erosion of natural deposits
Gross Alpha, Excl. Radon & Uranium [2025 data] 0 15 pCi/L 2.0 pCi/L 3.9 pCi/L 0.95 - 3.9 pCi/L YES Erosion of natural deposits
Contaminant MRDLG MRDL Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Chloramines (measured as Total Chlorine) 4 ppm 4 ppm 2.0 ppm 3.1 ppm 0.37 - 3.1 ppm YES Water additive used to control microbes.
Contaminant MCLG AL Sites Above AL 90th Percentile System Wide Range Compliance Achieved Possible Source
Copper (ppm) [2024 Data] 1.3 ppm 1.3 ppm
(90th percentile)		 0 of 35 0.23 ppm ND - 0.65 ppm YES Corrosion of customer plumbing systems, Erosion of natural deposits
Lead (ppb) [2024 Data] 0 ppb 15 ppb
(90th percentile)		 0 of 35 3.2 ppb ND - 7.4 ppb YES Corrosion of customer plumbing systems, Erosion of natural deposits
Contaminant MCL Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Total Trihalomethanes (TTHMs) 80 ppb
(LRAA)		 19 ppb 27 ppb (LRAA) 7.9 - 37 ppb
 YES By-product of drinking water disinfection
Haloacetic acids (HAA5) 60 ppb
(LRAA)		 9.7 ppb 15 ppb (LRAA) 2.7 - 25 ppb
 YES By-product of drinking water disinfection

SECONDARY DRINKING WATER STANDARDS & UNREGULATED CONTAMINANTS:

* Secondary standards are non-mandatory guidelines established by the EPA to assist utilities in managing drinking water for aesthetic considerations, such as taste, odor, and color. These contaminants are not considered to present a risk to human health at the SMCL.
Contaminant SMCL Average of All Samples Maximum of All Samples System Wide Range Possible Source
Aluminum (ppb) 200 ppm 20 ppm 59 ppm ND - 59 ppm Natural deposits; water treatment additive
Chloride (ppm) 250 ppm 49 ppm 85 ppm 18 - 85 ppm Natural deposits; water treatment additive
Hardness (ppm) N/A 360 ppm
22 grains/gal		 470 ppm
29 grains/gal		 270 - 470 ppm
16 - 29 grains/gal		 Erosion of natural deposits; leaching
Iron (ppm) 0.3 ppm 0.11 ppm 0.32 ppm
(1 of 3 samples)		 ND - 0.32 ppm Erosion of natural deposits; leaching
Manganese (ppm) 0.05 ppm 0.0051 ppm 0.015 ppm ND - 0.015 ppm Erosion of natural deposits; leaching
pH (Standard Units) 6.5 - 8.5 7.4 8.1 6.5 - 8.1  
Nickel (ppb) N/A ND ND ND Erosion of natural deposits; leaching
Sodium (ppm) N/A 33 ppm 66 ppm 22 - 66 ppm Erosion of natural deposits; leaching
Sulfate (ppm) 250 ppm 94 ppm 184 ppm ND - 184 ppm Erosion of natural deposits; leaching
Zinc (ppb) 5000 ppb 2.1 ppb 6.4 ppb ND - 6.4 ppb Natural Deposits
UNREGULATED CONTAMINANT MONITORING (UCMR 5)

EPA uses the Unregulated Contaminant Monitoring Rule (UCMR) to collect data for contaminants that are suspected to be present in drinking water and do not have health-based standards set under the Safe Drinking Water Act (SDWA). Data below is representative of samples collected through EPA UCMR 5 monitoring.
Contaminant HBRV Average of All Samples Maximum of All Samples System Wide Range Possible Source
Perfluorohexanoic acid (PFHxA) N/A 1.6 ppt 3.2 ppt ND - 3.2 ppt Discharge from manufacturing and industrial chemical facilities, and certain firefighting activities.
Tested for 28 PFAS compounds.  Zero (0) were detected. N/A ND ND ND Discharge from manufacturing and industrial chemical facilities, and certain firefighting activities. 

Note: **The State requires us to monitor for certain contaminants less than once per year because the concentrations of these contaminants do not change frequently. Some of our data, though accurate, is more than one year old. Some contaminants are sampled less frequently than once a year; as a result, not all contaminants were sampled for during the 2025 calendar year. If any of these contaminants were detected the last time they were sampled for, they are included in the table along with the date the detection occurred. Compliance monitoring for lead and copper is required no less frequently than every three years. Radiochemical contaminant monitoring is conducted every nine years.

Citizens collected samples under the EPA Unregulated Contaminants Monitoring Rule 5 (UCMR) for 29 PFAS compounds and Lithium. This monitoring is being conducted so EPA can receive occurrence data for these compounds to determine what additional compounds may need to be regulated in drinking water. Citizens collected samples in May and November 2025. If you would like to view our results, contact our office at 317-924-3311.

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