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Indianapolis (IN5249004) & Morgan County (IN5255019) 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 found in our water. The tests are done on treated finished water (excluding those listed under “Untreated Source Water”). See Definitions of Terms for an explanation of terms used in this chart.

Citizens Energy Group—Indianapolis and Morgan County

Consumer Confidence Report Data 2025

REGULATED CONTAMINANTS (Sampled at Treatment Plants)
Contaminant MCLG (Goal) MCL (Limit) Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Atrazine (ppb) 3 ppb 3 ppb
(RAA)		 0.29 ppb 1.8 ppb ND - 1.8 ppb YES Runoff from herbicide used on row crops
Barium (ppm) 2 ppm 2 ppm 0.13 ppm 0.27 ppm 0.046 - 0.27 ppm YES Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits
Chromium (ppb) 100 ppb 100 ppb ND ND ND YES Discharge from steel and pulp mills; Erosion of natural deposits
Fluoride (ppm) 4 ppm 4 ppm 0.57 ppm 0.89 ppm 0.10 - 0.89 ppm YES Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories
Nitrate (ppm) 10 ppm 10 ppm 1.1 ppm 4.0 ppm ND - 4.0 ppm YES Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits
Simazine (ppb) 4 ppb 4 ppb BDL 0.20 ppb ND - 0.20 ppb YES Herbicide runoff
Total Xylenes (ppb) 10 ppb 10 ppb BDL 3.0 ppb ND - 3.0 ppb YES Discharge from petroleum factories; discharge from chemical factories
Combined Radium (-226 & -228) [2025 data] 0 5 pCi/L 0.23 pCi/L 0.70 pCi/L -0.54 - 0.70 pCi/L YES Erosion of natural deposits
Gross Alpha, Excl. Radon & Uranium [2025 data] 0 15 pCi/L 1.0 pCi/L 1.9 pCi/L -0.09 - 1.9 pCi/L YES Erosion of natural deposits
Contaminant TT Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Turbidity (NTU) 100% <1  NTU
95% <0.3 NTU		 0.04 NTU 0.10 NTU 0.020 - 0.10 NTU YES Soil runoff

SOURCE WATER QUALITY MONITORING (Prior to Treatment)
Contaminant TT Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Cryptosporidium (Untreated Water, org/10L) N/A 0.5 2 ND - 2 oocysts / 10 L N/A  
Giardia (Untreated Water, org/10L) N/A 4.7 17 ND - 17 oocysts / 10 L N/A  
TOC (Untreated Water, ppm) N/A 4.1 ppm 5.4 ppm 3.0 - 5.4 ppm N/A Naturally present in the environment

SECONDARY DRINKING WATER STANDARDS & UNREGULATED CONTAMINANTS (Sampled at Treatment Plant)

* 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 ppb 42 ppb 120 ppb ND - 120 ppb Natural deposits; water treatment additive
Chloride (ppm) 250 ppm 72 ppm 184 ppm 14 - 184 ppm Natural deposits; water treatment additive
Hardness (ppm) N/A 317 ppm
19 grains/gal		 460 ppm
27 grains/gal		 148 - 460 ppm
8.7 - 27 grains/gal		 Erosion of natural deposits; leaching
Iron (ppm) 0.3 ppm ND ND ND Erosion of natural deposits; leaching
Nickel (ppb) N/A ND ND ND Erosion of natural deposits; leaching
Orthophosphate (ppm) N/A 1.94 ppm 2.49 ppm ND - 2.49 ppm Additive to prevent lead and copper leaching from plumbing
pH (Standard Units) 6.5 - 8.5 7.7 8.5 6.9 - 8.5  
Sodium (ppm) N/A 44 ppm 139 ppm 15 - 139 ppm Erosion of natural deposits; leaching
Sulfate (ppm) 250 ppm 42 ppm 190 ppm 14 - 190 ppm Erosion of natural deposits; leaching
UNREGULATED CONTAMINANTS (Sampled at Treatment Plant)
Contaminant HBRV Average of All Samples Maximum of All Samples System Wide Range Possible Source
Perfluorobutanesulfonic acid (PFBS) 2000 ppt 0.73 ppt 2.9 ppt ND - 2.9 ppt Discharge from manufacturing and industrial chemical facilities, and certain firefighting activities. 
Perfluorohexanoic acid (PFHxA) N/A 0.63 ppt 2.5 ppt ND - 2.5 ppt Discharge from manufacturing and industrial chemical facilities, and certain firefighting activities. 
Tested for 15 other PFAS compounds.
No others were detected.		 N/A ND ND ND Discharge from manufacturing and industrial chemical facilities, and certain firefighting activities.

Indianapolis

REGULATED CONTAMINANTS (Sampled in Distribution System)
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 2.9 ppm 0.09 - 2.9 ppm YES Water additive used to control microbes.
Contaminant MCLG (Goal) MCL (Limit) Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
E coli 0 A routine sample and a repeat sample are total coliform positive, and one is E. coli positive N/A 1 sample during the month of May N/A YES Human and animal fecal waste
Total Coliforms N/A 5.0% (TT) N/A 1.1% during the month of July N/A YES Naturally present in the environment
Cryptosporidium (org/10L) 0 org/10L TT N/A N/A No Organisms Found YES Removed during treatment
Giardia (org/10L) 0 org/10L TT N/A N/A No Organisms Found YES Removed during treatment
Contaminant MCL Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Total Trihalomethanes (TTHMs) 80 ppb
(LRAA)		 51 ppb 58 ppb
(LRAA)		 22 - 70 ppb YES By-product of drinking water disinfection
Haloacetic acids (HAA5) 60 ppb
(LRAA)		 29 ppb 38 ppb
(LRAA)		 12 - 40 ppb YES By-product of drinking water disinfection

REGULATED CONTAMINANTS (Sampled at Customer Tap)
Contaminant MCLG AL Sites Above AL 90th Percentile System Wide Range Compliance Achieved Possible Source
Copper (ppm) [2025 Data] 1.3 ppm 1.3 ppm
(90th percentile)		 0 of 106 0.097 ppm ND - 0.38 ppm YES Corrosion of customer plumbing systems, Erosion of natural deposits
Lead (ppb) [2025 Data] 0 ppb 15 ppb
(90th percentile)		 2 of 106 4.7 ppb ND - 19 ppb YES Corrosion of customer plumbing systems, Erosion of natural deposits

Morgan County

REGULATED CONTAMINANTS (Sampled in Distribution System)
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 1.5 ppm 2.1 ppm 1.1 - 2.1 ppm YES Water additive used to control microbes.
Contaminant MCLG (Goal) MCL (Limit) Average of All Samples Maximum of All Samples System Wide Range Compliance Achieved Possible Source
Total Trihalomethanes (TTHMs) N/A 80 ppb 11 ppb
(1 sample)		 11 ppb
(1 sample)		 11 ppb
(1 sample)		 YES By-product of chlorination treatment
Haloacetic acids (HAA5) N/A 60 ppb 1.8 ppb
(1 sample)		 1.8 ppb
(1 sample)		 1.8 ppb
(1 sample)		 YES By-product of chlorination treatment
E coli 0 A routine sample and a repeat sample are total coliform positive, and one is E. coli positive ND ND ND YES Human and animal fecal waste
Total Coliforms N/A TT N/A 1 sample during the month of July N/A YES Naturally present in the environment

REGULATED CONTAMINANTS (Sampled at Customer Tap)
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 22 0.13 ppm ND - 0.18 ppm YES Corrosion of customer plumbing systems, Erosion of natural deposits
Lead (ppb)  [2024 Data] 0 ppb 15 ppb
(90th percentile)		 0 of 22 1.1 ppb ND - 2.3 ppb YES Corrosion of customer plumbing systems, Erosion of natural deposits

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 three years.

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