CONSUMER CONFIDENCE REPORT

---

Consumer Confidence Report

Annual Drinking Water Quality Report

OAK RIDGE SANITARY DISTRICT

IL2035300

Annual Water Quality Report for the period of January 1 to

December 31, 2025

This report is intended to provide you with important

information about your drinking water and the efforts made

by the water system to provide safe drinking water.

The source of drinking water used by

OAK RIDGE SANITARY DISTRICT is Ground Water

For more information regarding this report contact:

Name Steve Hanson President

Phone 309-253-7470

Este informe contine información muy importantesobre

el agua que usted bebe. Tradúzcalo ó hable con alguien

que lo entienda bien.

Source of Drinking Water Drinking water, including bottled water, may

reasonably be expected to contain at least

The sources of drinking water (both tap water and

bottled water) include rivers, lakes, streams,

ponds, reservoirs, springs, and wells. As water

travels over the surface of the land or through the

ground, it dissolves naturally-occurring minerals

and, in some cases, radioactive material, and can

pick up substances resulting from the presence of

animals or from human activity.

health.

small

amounts of some contaminants. The presence of

contaminants does not necessarily indicate that

water poses a health risk. More information abor

contaminants and potential health effects can be

obtained by calling the EPAs Safe Drinking Water

Hotline at (800) 426-4791.

In order to ensure that tap water is safe to

Contaminants that may be present in source water

E n c l u d e :

Microbial contaminants, such as viruses and

bacteria, which may come from sewage treatment

plants, septic systems, agricultural livestock

operations, and wildlife.

Inorganic contaminants, such as salts

metals, which can be naturally-occurring or result

from urban storm water runoff, industrial or

domestic wastewater discharges, oil and gas

drink, EPA prescribes regulations which limit the

amount of certain contaminants in water provided

by public water systems. FDA regulations establi:

limits for contaminants in bottled water which

must provide the same protection for public

Some people may be more vulnerable to contaminan

in drinking water than the general population.

production, mining, or farming.

Pesticides and herbicides, which may come from a

variety of sources such as agriculture, urban storm

water runoff, and residential uses.

Organic chemical contaminants, including

synthetic and volatile organic chemicals, which are

by-products of industrial processes and petroleum

production, and can also come from gas stations,

urban storm water runoff, and septic systems.

Radioactive contaminants, which can be

naturally-occurring or the result of oil and gas

production and mining activities.

Immuno-compromised persons such as persons with

cancer undergoing chemotherapy, persons who have

undergone organ transplants, people with HIV/AID:

or other immune system disorders, sone elderly al

infants can be particularly at risk from

infections. These people should seek advice abou

drinking water from their health care providers.

EPA/CDC guidelines on appropriate means to lesses

the risk of infection by Cryptosporidium and oth

microbial contaminants are available from the Sa

Drinking Water Hotline (800-426-4791).

Lead can cause serious health problens, especial

for pregnant women and young children.

Lead in

drinking water is primarily from materials and

components associated with service lines and hom

plumbing. The drinking water supplier is

responsible for providing high qualisy drinking

water and removing lead pipes, but cannot contro

the variety of materials used in plunbing

components in your home. You share the

responsibility for protecting yourself and your

family from the lead in your home plumbing. You

can take responsibility by identifying and

removing lead materials within your home plumbin‹

and taking steps to reduce your family's risk.

Before drinking tap water, flush your pipes for

several minutes by running your tap, taking a

shower, doing laundry or a load of dishes. You ci

also use a filter certified by an American

National Standard Institute accredited certifier

Before drinking tap water, flush your pipes for

several minutes by running your tap, taking a

shower, doing laundry or a load of dishes. You can

also use a filter certified by an American

National Standard Institute accredited certifier

to reduce lead in drinking water. If you are

concerned about lead in your water, you may wish

to have your water tested, contact Certified

Operator Stan Sayre at 309-643-7232. Information

on lead in drinking water, testing methods, and

steps you can take to minimize exposure is

available at http ://www.epa.gov/safewater/lead.

Oakridge Sanitary Dist. Water Supply as of April

3, 2025, was excepted by the IEPA as a non-lead

service line system.

Source Water Information

Source Water Name

WELL 2(31456)

Type of Water

GW

Report Status Location

1521 Hickory Point Rd. Metamora

Source Water Assessment

We want our valued customers to be informed about their water quality. If you would like to learn more, please feel welcome to attendanof ur

scheduled meetings held on the first Tuesday of the month at Wellhouse 1, The source water assessment for our supply has been completed by the Illinois EPA.

you would like a copy of this information, call our water operator Stan Sayre 0309-643-7232. To view a summary version of the completed Source Water Assessments,

of Source Water; Susceptibility to Contamination Determination; and documentation/recommendation of Source Water Protection Efforts, you may

access the Illinois EPA website at http://www.epa.state.i1.us/cgi-bin/wp/swap-fact-sheets.p1.

Source of Water: OAK RIDGE SANITARY DISTRICTBased on information obtained in a Well Site Survey, published in 1990 by the Illinois EPA, there was one

potential source of groundwater contamination within 1,000 feet of the Oak Ridge Sanitary District wells. In addition, it is important to note that the

residents of the subdivision utilize single dwelling septic tank systems that may be of concern. The Illinois EPA has determined that the Oak Ridge Sanitary

District Community Water Supply's source water is not susceptible to contamination. This determination is based on a number of criteria including:

monitoring conducted at the wells; monitoring conducted at the entry point to the distribution system; proximity of activities that could pose a potential risk to the source water.In available hydrogeologic data on the wells;

anticipation of the U.S. EPA's proposed Ground Water Rule, the Illinois EPA

has determined that the Oak Ridge Sanitary District Subdivision Community Water Supply is not vulnerability to viral contamination.

based upon the completed evaluation of the following criteria during the Vulnerability waiver Process: the community's wells are properly constructed with

sound integrity and proper site conditions; a hydrogeologic barrier exists that prevents pathogen movement; all potential routes and sanitary defects have

been mitigated such that the source water is adequately protected; monitoring data did not indicate a history of disease outbreak; and the sanitary survey of

the water supply did not indicate a viral contamination threat. Because the community's wells are constructed in a confined aquifer and the movement of

pathogens into the wells should be minimized, well hydraulics were not considered to be a significant factor in the vulnerability determination. Hence, well

hydraulics were not evaluated for this groundwater supply.

2025 Regulated Contaminants Detected

iform Bacteria

Maximum

aminant Level

Goal

Total Coliform

Maximum

Contaminant

Level

Highest No. of

Positive

Fecal Coliform or E.

Coli Maximum

Contaminant Level

Total No. of

Positive E. Coli or

Fecal Coliform

Samples

Violation Likely Source of Contamination

1 positive

monthly sample.

1 N Naturally present in the environment.

1 and Copper

nitions:

on Level: The concentration of a contaminant which, if exceeded, treatment or other requirements which a water system must

on Level Goal (ALG) : The level of a contaminant in drinking water below which there is no known or expected risk to health. ALGs allow for a margin of

ty. June aoas Dec. 2025

er Range:

Range: Houg to 1400ug/h Copper ronge 24ug/ - 2400ug/L Leadrange <1.0uglL to 41.04

otaśn a copy of the systen's lead tap amping data: Stan Saye Certifled Waler Operator 309/643-7232

LE ONE: Our Community Water Supply has/has not developed a service

otain a copy of the system's service line inventory: Was apprehA April 3,2025

I and Copper Date Sampled MCLG

Action

Level

(AL)

90th

Percentile # SitesOver

AL

Units Violation Likely Source of Contamination

ser 2025 1.3 1.3 1.7 ppm Y Corrosion of household plumbing systems;

Errosion of natural deposits.

2025 0 15 1.4 0 ppb Y Corrosion of household plumbing systems;

Errosion of natural deposits.

ar Quality Test Results

nitions:

1 1 Assessment:

The following tables contain scientific terms and measures, some of which may require explanation.

Regulatory compliance with some MCLs are based on running annual average of monthly samples.

A Level 1 assessment is a study of the water system to identify potential

total coliform bacteria have been found in our water system. problems and determine (if possible) why

Water Quality Test Results

Level 2 Assessment: A Level 2 assessment is a very detailed study of the water system to identify potential problems and determine (if

possible) why an E. col1 MCL violation has occurred and/or why total coliform bacteria have been found in our water

system on multiple occasions.

Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCs are set as close to the MCLGs as feasible

the best available treatment technology.

Maximum Contaminant Level Goal or MCG: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCIGs allow

for a margin of safety.

Maximum residual disinfectant level or The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a

MRDL:

disinfectant is necessary for control of microbial contaminants.

Maximum residual disinfectant level

The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not

goal or MRDIG:

reflect the benefits of the use of disinfectants to control microbial contaminants.

na:

not applicable.

mrem: millirems per year (a measure of radiation absorbed by the body)

micrograms per liter or parts per billion - or one ounce in 7,350,000 gallons of water.

ppb: ppm: milligrams per liter or parts per million - or one ounce in 7,350 gallons of water.

Treatment Technique or TT: A required process intended to reduce the level of a contaminant in drinking water.

Disinfectants and

Disinfection By-

Products

Collection

Date Highest Level Detected

Range of Levels

Detected

MCLG MCL Units Violation Likely Source of Contamination

Chlorine 2025 0.3 0.1 - 0.33 MRDLG = 4 MRDL = 4 Ppm N Water additive used to control microbes.

Haloacetic Acids

(HAAS)

09/12/2023 7.27 7.27 - 7.27 No goal for

the total

60 ppb By-product of drinking water disinfection.

Total Trihalomethanes

(TTHM)

09/12/2023 2.4 2.4 - 2.4 the total No goal for

80 ppb N By-product of drinking water disinfection.

Inorganic

Contaminants

Collection

Date

Highest Level

Detected

Range of Levels

Detected

MOLG MCL Units Violation Likely Source of Contamination

Arsenic 10/18/2024 4.6

4.6 - 4.6

10 ppb Erosion of natural deposits; Runoff fron

orchards; Runoff from glass and electronics

production wastes.

Barium 10/18/2024 0.24 0.24 - 0.24 2 2 ppm N Discharge of drilling wastes; Discharge from

metal refineries; Erosion of natural deposits

Fluoride 10/18/2024 0.703 0.703 - 0.703 4 4.0 ppm N Erosion of natural deposits; Water additive

which promotes strong teeth; Discharge from

fertilizer and aluminum factories.

Iron 2025 5.1 0.11 - 5.1 1.0 ppm N This contaminant is not currently regulated t

the USEPA. However, the state regulates.

Erosion of natural

deposits.

Manganese 2025 56 38 - 56 150 150 ppb N This contaminant is not currently regulated k

the USEPA. However, the state regulates.

Erosion of natural deposits.

Sodium 10/18/2024 79 79 - 79 ppb N Erosion from naturally occuring deposits.

Used in water softener regeneration.

Zinc 10/18/2024 0.0076 0.0076 - 0.0076 5 5 Ppm N This contaminant is not currently regulated i

the USEPA. However, the state regulates.

Naturally occurring; discharge from metal

Radioactive

Contaminants

Collection

Date

Highest Level

Detected

Range of Levels

Detected

MOLG MCL Units Violation Likely Source of Contamination

Combined Radium

226/228

10/27/2023 2.4 2.4 - 2.4 5 pCi/L N Erosion of natural deposits.

Violations Table

Consumer Confidence Rule

ne Consumer Confidence Rule requires community water systems to prepare and provide to their customers annual consumer confidence reports on the guality of

the water delivered by the systems.

Violation Type Violation Begin Violation End Violation Explanation

CCR ADEQUACY/AVAILABILITY/CONTENT 07/01/2024 06/02/2025 Ne failed to provide to you, our drinking water customers, an annual report that

adequately informed you about the quality of our drinking water and the risks from

exposure to contaminants detected in our drinking water.

Lead and Copper Rule

he Lead and Copper Rule protects public health by minimizing lead and copper levels in drinking water, primarily by reducing water corrosivity. Lead and

copper enter drinking water mainly from corrosion of leadand copper containing plumbing materials.

Violation Type Violation Begin Violation End

Violation Explanation

FOLLOW-UP OR ROUTINE TAP M/R

07/01/2025 2025

(LCR)

We failed to test our drinking water for the contaminant and period indicated. Because of

this failure, we cannot be sure of the quality of our drinking water during the period

OCCT/SOWT RECOMMENDATION/STUDY

04/02/2025 2025

(LCR)

indicated.

We failed to propose treatment to our regulator in response to results that indicate our

water needs treatment to reduce lead and/or copper levels.

Public Notification Rule

The Public Notification Rule helps to ensure that consumers will always know if there is a problem with their drinking water. These notices immediately alert

consumers if there is a serious problem with their drinking water (e.g., a boil water emergency) •

Violation Type Violation Begin Violation End Violation Explanation

PUBLIC NOTICE RULE LINKED TO

VIOLATION

11/01/2025 2025 We failed to adequately notify you, our drinking water consumers, about a violation of the

drinking water regulations.

Monitoring Violations Annual Notice Template

IMPORTANT INFORMATION ABOUT YOUR DRINKING WATER

Monitoring Requirements Not Met for Oak Ridge SD

Our water system violated several drinking water standards over the past year. Even though these were not emergencies,

as our customers, you have a right to know what happened and what we did to correct these situations.

We are required to monitor your drinking water for specific contaminants on a regular basis. Results of

regular monitoring are an indicator of whether or not our drinking water meets health standards. During Jan.

to June 2025, we did not complete all monitoring for lead and copper and therefore cannot be sure of the

quality of our drinking water during that time.

What should I do?

There is nothing you need to do at this time.

The table below lists the contaminants) we did not properly test for during the last year, how often we are supposed to

sample for these contaminants, how many samples we are supposed to take, how many samples we took, when samples

should have been taken, and the date on which follow-up samples were (or will be) taken.

Contaminant Required sampling

frequency

Number of samples

taken

When all samples

should have been

taken

When samples were or

will be taken

Lead and Copper 10 per 6-month

period 9 of 10 Jan to June 2025 December 2025

What happened? What is being done?

Failed to collect 1 out of 10 lead and copper samples during January-June 2025.

Resampled 10 of 10 lead and copper July-December 2025

For more information, please contact Stan Sayre at 309-643-7232.

Please share this information with all the other people who drink this water, especially those who may not have

received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do

this by posting this notice in a public place or distributing copies by hand or mail.

This notice is being sent to you by Oak Ridge SD. Water System ID# IL2035300 Date distributed With CCR

Failure to Submit Source Water and/or Optimal Corrosion Control Recommendations Template

IMPORTANT INFORMATION ABOUT YOUR DRINKING WATER

Reporting Requirements Not Met for Oak Ridge SD

Our water system violated a drinking water standard over the past year. Even though this was not an

emergency, as our customers, you have a right to know what happened and what we did to correct this

situation.

The Oak Ridge SD public water supply failed to submit the required source water and/or optimal

corrosion control treatment recommendations by 4/1/2025. The recommendation is an explanation to the

State of what the water supply plans to initiate in order to reduce the amount of lead and copper exposure

to its consumers. Failure to submit the recommendations in a timely fashion has resulted in a reporting

violation.

What should I do?

There is nothing you need to do at this time.

What happened? What is being done?

ORSD is using a 30% ortho and 70% polyphosphate blend. As of now, Hawkins Chemical is analyzing

Well #2 (water source).

This is not an emergency. If it had been, you would have been notified immediately. The required reports

will be submitted by [date] or were submitted on [date] and approved on [date].

For more information, please contact Stan Sayre at 309-643-7232.

Please share this information with all the other people who drink this water, especially those who may

not have received this notice directly (for example, people in apartments, nursing homes, schools, and

businesses). You can do this by posting this notice in a public place or distributing copies by hand or

mail.

This notice is being sent to you by Oak Ridge SD. IL2035300 Date distributedWater System ID#