OASIS MHP
Illinois — Community Water System — PWSID: IL0315185
System Information
| PWSID | IL0315185 |
| System Name | OASIS MHP |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jun 29, 1981 |
| Last Reported | Dec 4, 2025 |
Location & Contact
| State | Illinois |
| City | NORTHBROOK |
| ZIP Code | 60062 |
| Address | 900 Skokie Blvd |
| Organization | BARRON, JOSH |
| Phone | 847-827-6694 |
Population & Service
| Population Served | 3,000 |
| Service Connections | 599 |
Drinking Water Violations (93)
This water system has 93 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2021 | Aug 31, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2021 | Aug 31, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2021 | Aug 31, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2021 | Aug 31, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2021 | Aug 31, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2021 | Aug 31, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2021 | Aug 31, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2021 | Aug 31, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2020 | Dec 31, 2022 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Nickel | MR | No | Yes | — | — | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Nickel | MR | No | Yes | — | — | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Nickel | MR | No | Yes | — | — | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Nickel | MR | No | Yes | — | — | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Total Polychlorinated Biphenyls (PCB) | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Thallium, Total | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Thallium, Total | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Total Polychlorinated Biphenyls (PCB) | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Total Polychlorinated Biphenyls (PCB) | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Total Polychlorinated Biphenyls (PCB) | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Thallium, Total | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Antimony, Total | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Antimony, Total | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Antimony, Total | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Antimony, Total | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Thallium, Total | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 13, 2012 | Consumer Confidence Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 13, 2012 | Consumer Confidence Rule |
| Apr 1, 2011 | Jun 30, 2011 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 1, 2011 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2011 | Jun 30, 2011 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 1, 2011 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2011 | Jun 30, 2011 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 1, 2011 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2011 | Jun 30, 2011 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 1, 2011 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.