PWSID IL3163188
US SILICA OTTAWA SOUTH PIT
Non-transient non-community based in Ottawa, IL
Service area on file with EPA: LaSalle County. EPA's recorded service area can be incomplete for regional authorities. The cities and counties above are what the utility has filed with EPA; the utility may serve additional areas.
- Population served
- 35
- Source
- Groundwater
- Status
- Active
At a glance
1 issue above the federal safety limit
-
Copper was found above the federal safety limit. Long-term high exposure can affect the liver and kidneys.
Most recent lead and copper test · See details below
Risk classification follows EPA's published values for safe drinking water, with caution and concern bands reviewed by a clinician. Past resolved violations do not influence this card. See methodology.
Lead service line inventory
No inventory data on file
We do not yet have this utility's published Lead Service Line Inventory on file. The EPA Lead and Copper Rule Improvements (LCRI) required every community water system to publish one by October 16, 2024 and to identify and replace any lead lines within 10 years. How lead enters drinking water.
Phase 1 coverage focuses on the largest NC utilities. Smaller systems will be added; in the meantime, ask your utility for their inventory or check their Consumer Confidence Report.
Lead and copper test results
The most recent measurement per contaminant from EPA's Lead and Copper Rule sampling.
Why only lead and copper, and not arsenic, nitrate, or others?
EPA's bulk SDWIS download is the only nationwide per-system sample data they publish, and it only includes the Lead and Copper Rule table. Values for other regulated contaminants (TTHMs, nitrate, arsenic, etc.) appear on this page only when they trigger a violation. For the full per-system contaminant suite, see the utility's annual Consumer Confidence Report (link further down the page).
Data from EPA SDWIS (Lead and Copper Rule sample table) , last refreshed May 24, 2026.
Fluoride
We don't yet have this utility's specific fluoridation status from CDC's My Water's Fluoride listing. The figures below describe the broader area, not US SILICA OTTAWA SOUTH PIT itself.
Area context
La Salle County, IL (2020 data)
- Community water systems
- 30 of 38 add fluoride
- Population on fluoridated water
- 69,323 of 75,013 (92.4%)
Illinois statewide (2020 data)
- Population on fluoridated water
- 11,457,094 of 11,640,823 (98.4%)
- Community water systems adding fluoride
- 1,639 of 1,815
Look up your specific utility
Illinois shares per-system data on CDC's My Water's Fluoride site. Search by water system to see whether US SILICA OTTAWA SOUTH PIT adds fluoride.
Data from CDC Water Fluoridation Reporting System (state and county aggregates) , last refreshed May 16, 2026.
Compliance history
EPA-recorded violations against this system over the last 5 years.
How to read this section
Health-based violations are when a measured limit was exceeded; the measured concentration is shown alongside the EPA federal limit where SDWIS published it. Monitoring and reporting items are paperwork issues (missed sample dates, late filings) that do not themselves indicate unsafe water.
No health-based violations
No health-based violations on file in the last 5 years. EPA recorded 144 monitoring or reporting items (paperwork) during the same period.
144 monitoring and reporting item s (paperwork) · these are not health risks
| Period start | Relates to | Item | Status |
|---|---|---|---|
| April 1, 2022 | 1,2,4-Trichlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,2,4-Trichlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Xylenes, Total | Monitoring, Regular | Resolved |
| April 1, 2022 | Xylenes, Total | Monitoring, Regular | Resolved |
| April 1, 2022 | O-Dichlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | O-Dichlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | P-Dichlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | P-Dichlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Trans-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Trans-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,2-Dichloroethane | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,2-Dichloroethane | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,1,1-Trichloroethane | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,1,1-Trichloroethane | Monitoring, Regular | Resolved |
| April 1, 2022 | Trichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Trichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Tetrachloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Tetrachloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Chlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Chlorobenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Benzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Benzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Toluene | Monitoring, Regular | Resolved |
| April 1, 2022 | Toluene | Monitoring, Regular | Resolved |
| April 1, 2022 | Ethylbenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Ethylbenzene | Monitoring, Regular | Resolved |
| April 1, 2022 | Styrene | Monitoring, Regular | Resolved |
| April 1, 2022 | Styrene | Monitoring, Regular | Resolved |
| April 1, 2022 | Methoxychlor | Monitoring, Regular | Resolved |
| April 1, 2022 | Methoxychlor | Monitoring, Regular | Resolved |
| April 1, 2022 | Toxaphene | Monitoring, Regular | Resolved |
| April 1, 2022 | Toxaphene | Monitoring, Regular | Resolved |
| April 1, 2022 | Carbofuran | Monitoring, Regular | Resolved |
| April 1, 2022 | Carbofuran | Monitoring, Regular | Resolved |
| April 1, 2022 | Lasso | Monitoring, Regular | Resolved |
| April 1, 2022 | Lasso | Monitoring, Regular | Resolved |
| April 1, 2022 | Heptachlor Epoxide | Monitoring, Regular | Resolved |
| April 1, 2022 | Heptachlor Epoxide | Monitoring, Regular | Resolved |
| April 1, 2022 | Pentachlorophenol | Monitoring, Regular | Resolved |
| April 1, 2022 | Pentachlorophenol | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,1-Dichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,1-Dichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Chlordane | Monitoring, Regular | Resolved |
| April 1, 2022 | Chlordane | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,2-Dichloropropane | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,2-Dichloropropane | Monitoring, Regular | Resolved |
| April 1, 2022 | Atrazine | Monitoring, Regular | Resolved |
| April 1, 2022 | Atrazine | Monitoring, Regular | Resolved |
| April 1, 2022 | Cis-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Cis-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| April 1, 2022 | Vinyl Chloride | Monitoring, Regular | Resolved |
| April 1, 2022 | Vinyl Chloride | Monitoring, Regular | Resolved |
| April 1, 2022 | Heptachlor | Monitoring, Regular | Resolved |
| April 1, 2022 | Heptachlor | Monitoring, Regular | Resolved |
| April 1, 2022 | 2,4,5-Tp | Monitoring, Regular | Resolved |
| April 1, 2022 | 2,4,5-Tp | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,1,2-Trichloroethane | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,1,2-Trichloroethane | Monitoring, Regular | Resolved |
| April 1, 2022 | 2,4-D | Monitoring, Regular | Resolved |
| April 1, 2022 | 2,4-D | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,2-Dibromo-3-Chloropropane | Monitoring, Regular | Resolved |
| April 1, 2022 | 1,2-Dibromo-3-Chloropropane | Monitoring, Regular | Resolved |
| April 1, 2022 | Ethylene Dibromide | Monitoring, Regular | Resolved |
| April 1, 2022 | Ethylene Dibromide | Monitoring, Regular | Resolved |
| April 1, 2022 | Carbon Tetrachloride | Monitoring, Regular | Resolved |
| April 1, 2022 | Carbon Tetrachloride | Monitoring, Regular | Resolved |
| April 1, 2022 | Total Polychlorinated Biphenyls (Pcb) | Monitoring, Regular | Resolved |
| April 1, 2022 | Total Polychlorinated Biphenyls (Pcb) | Monitoring, Regular | Resolved |
| April 1, 2022 | Bhc-Gamma | Monitoring, Regular | Resolved |
| April 1, 2022 | Bhc-Gamma | Monitoring, Regular | Resolved |
| April 1, 2022 | Dichloromethane | Monitoring, Regular | Resolved |
| April 1, 2022 | Dichloromethane | Monitoring, Regular | Resolved |
| January 1, 2022 | Total Polychlorinated Biphenyls (Pcb) | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2-Dibromo-3-Chloropropane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2-Dibromo-3-Chloropropane | Monitoring, Regular | Resolved |
| January 1, 2022 | Ethylene Dibromide | Monitoring, Regular | Resolved |
| January 1, 2022 | Ethylene Dibromide | Monitoring, Regular | Resolved |
| January 1, 2022 | P-Dichlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | P-Dichlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,1,1-Trichloroethane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,1,1-Trichloroethane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2-Dichloropropane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2-Dichloropropane | Monitoring, Regular | Resolved |
| January 1, 2022 | Trichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Trichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Benzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Benzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Toluene | Monitoring, Regular | Resolved |
| January 1, 2022 | Toluene | Monitoring, Regular | Resolved |
| January 1, 2022 | Methoxychlor | Monitoring, Regular | Resolved |
| January 1, 2022 | Methoxychlor | Monitoring, Regular | Resolved |
| January 1, 2022 | Carbofuran | Monitoring, Regular | Resolved |
| January 1, 2022 | Carbofuran | Monitoring, Regular | Resolved |
| January 1, 2022 | Atrazine | Monitoring, Regular | Resolved |
| January 1, 2022 | Atrazine | Monitoring, Regular | Resolved |
| January 1, 2022 | Heptachlor | Monitoring, Regular | Resolved |
| January 1, 2022 | Heptachlor | Monitoring, Regular | Resolved |
| January 1, 2022 | Heptachlor Epoxide | Monitoring, Regular | Resolved |
| January 1, 2022 | Heptachlor Epoxide | Monitoring, Regular | Resolved |
| January 1, 2022 | 2,4-D | Monitoring, Regular | Resolved |
| January 1, 2022 | 2,4-D | Monitoring, Regular | Resolved |
| January 1, 2022 | 2,4,5-Tp | Monitoring, Regular | Resolved |
| January 1, 2022 | 2,4,5-Tp | Monitoring, Regular | Resolved |
| January 1, 2022 | Total Polychlorinated Biphenyls (Pcb) | Monitoring, Regular | Resolved |
| January 1, 2022 | Bhc-Gamma | Monitoring, Regular | Resolved |
| January 1, 2022 | Bhc-Gamma | Monitoring, Regular | Resolved |
| January 1, 2022 | Chlordane | Monitoring, Regular | Resolved |
| January 1, 2022 | Chlordane | Monitoring, Regular | Resolved |
| January 1, 2022 | Carbon Tetrachloride | Monitoring, Regular | Resolved |
| January 1, 2022 | Carbon Tetrachloride | Monitoring, Regular | Resolved |
| January 1, 2022 | Trans-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Trans-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Pentachlorophenol | Monitoring, Regular | Resolved |
| January 1, 2022 | Pentachlorophenol | Monitoring, Regular | Resolved |
| January 1, 2022 | O-Dichlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | O-Dichlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Ethylbenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Ethylbenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Xylenes, Total | Monitoring, Regular | Resolved |
| January 1, 2022 | Xylenes, Total | Monitoring, Regular | Resolved |
| January 1, 2022 | Chlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Chlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Styrene | Monitoring, Regular | Resolved |
| January 1, 2022 | Styrene | Monitoring, Regular | Resolved |
| January 1, 2022 | Tetrachloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Tetrachloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,1,2-Trichloroethane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,1,2-Trichloroethane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2,4-Trichlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2,4-Trichlorobenzene | Monitoring, Regular | Resolved |
| January 1, 2022 | Vinyl Chloride | Monitoring, Regular | Resolved |
| January 1, 2022 | Vinyl Chloride | Monitoring, Regular | Resolved |
| January 1, 2022 | Dichloromethane | Monitoring, Regular | Resolved |
| January 1, 2022 | Dichloromethane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2-Dichloroethane | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,2-Dichloroethane | Monitoring, Regular | Resolved |
| January 1, 2022 | Lasso | Monitoring, Regular | Resolved |
| January 1, 2022 | Lasso | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,1-Dichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | 1,1-Dichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Cis-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Cis-1,2-Dichloroethylene | Monitoring, Regular | Resolved |
| January 1, 2022 | Toxaphene | Monitoring, Regular | Resolved |
| January 1, 2022 | Toxaphene | Monitoring, Regular | Resolved |
Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.
Where to see every contaminant this utility tested for
EPA's bulk SDWIS dataset gives MyTapWater.us per-system measured values for lead and copper, plus violation records for everything else. To see every regulated contaminant this utility tested for in the past year (TTHMs, HAA5, nitrate, arsenic, fluoride, chromium, etc.) with measured values, read the utility's Consumer Confidence Report (CCR).
Every community water system is required by EPA to publish a CCR annually, by July 1, listing every contaminant they sampled, the measured value, the federal limit, and any health-based exceedances. Most utilities post the report online; some mail it with your bill.
How to find US SILICA OTTAWA SOUTH PIT's CCR:
- Search the web for "US SILICA OTTAWA SOUTH PIT consumer confidence report" . The PDF is usually on the utility's own website.
- Or call the utility directly. Their phone number is in the contact section below.
Other water systems in LaSalle County, IL
Compare nearby utilities by population served.
- IL AMERICAN-STREATOR
19k served · STREATOR
- OTTAWA
18k served · OTTAWA
- PERU
10k served · PERU
- LA SALLE
9,700 served · LA SALLE
- MENDOTA
6,926 served · MENDOTA
Contact this utility
Public administrative contact information for this water system, as filed with the EPA. Use this to ask about your service line, request your home's lead status, or report a water quality issue.
- Administrator
- DAVID, OLCHAWA
- Phone
- 815-434-0188 x313
- DLOURIE@TESTINC.COM
- Mailing address
- 701 BOYCE MEMORIAL DRIVEOTTAWA, IL 61350
Where this page's data comes from
Bundle released 2026-Q2, regenerated May 24, 2026. Each section above also shows its own source date so you can tell at a glance how fresh that part of the page is.
- EPA SDWIS bulk download — last refreshed May 24, 2026 (system info, violations, lead and copper samples).
- CDC Water Fluoridation Reporting System — last refreshed May 16, 2026 (state and county fluoridation aggregates).
Every value on this page is cross-verified before publication; read our methodology for the verification steps and corrections process.