Illinois monthly operating report
Illinois EPA — Bureau of Water, Division of Public Water Supplies, Field Operations
$79 per system / month · no card to start
Distribution System Operating Report
distribution-systemNo revision markMonthly
- Deadline
- Due 10 days after the reporting period ends.
- You get
- A companion worksheet of your readings to copy onto the agency’s form. The agency’s own file is not filled.
Source 35 IAC 611.840 · epa.illinois.gov ↗
Monthly Operation and Chemical Feeding Report
chemical-feedingNo revision markMonthly
- Deadline
- Due 10 days after the reporting period ends.
- You get
- A companion worksheet of your readings to copy onto the agency’s form. The agency’s own file is not filled.
Source 35 IAC 611.840 · epa.illinois.gov ↗
Coagulation / Lime Softening Plant Operating Report
coagulation-lime-softeningNo revision markMonthly
- Deadline
- Due 30 days after the reporting period ends.
- You get
- A companion worksheet of your readings to copy onto the agency’s form. The agency’s own file is not filled.
Source Printed on the form: "within 30 days following the last day of each month" · epa.illinois.gov ↗
Iron Removal / Ion-Exchange Softening Plant Operating Report
iron-removalNo revision markMonthly
- Deadline
- Due 10 days after the reporting period ends.
- You get
- A companion worksheet of your readings to copy onto the agency’s form. The agency’s own file is not filled.
Source 35 IAC 611.840 · epa.illinois.gov ↗
Membrane Filtration Plant Operating Report
membrane-filtrationNo revision markMonthly
- Deadline
- Due 10 days after the reporting period ends.
- You get
- A companion worksheet of your readings to copy onto the agency’s form. The agency’s own file is not filled.
Source 35 IAC 611.840 · epa.illinois.gov ↗
›Sources
distribution-system
- The state’s fileretrieved 2026-08-12
- Deadline: 35 IAC 611.840
chemical-feeding
- The state’s fileretrieved 2026-08-12
- Deadline: 35 IAC 611.840
coagulation-lime-softening
- The state’s fileretrieved 2026-08-12
- Deadline: Printed on the form: "within 30 days following the last day of each month"
iron-removal
- The state’s fileretrieved 2026-08-12
- Deadline: 35 IAC 611.840
membrane-filtration
- The state’s fileretrieved 2026-08-12
- Deadline: 35 IAC 611.840
Illinois EPA — Bureau of Water, Division of Public Water Supplies, Field Operations