Willow Grove Mill, DE Water Quality Guide
Mapped public-water systems, PWS IDs, CCR availability, and private-well context for Willow Grove Mill, Delaware.
About Willow Grove Mill, DE Water
About Willow Grove Mill, DE Water
Willow Grove Mill is a named Delaware community associated with New Castle County. It may include public-water service, private wells, subdivisions, or noncommunity systems. The anchor location used for this page is a discovery aid, not an address-level boundary. The associated municipality or nearby anchor is Middletown.
Local Delaware water context for Willow Grove Mill
New Castle has dense interconnected public-water service around Wilmington and Newark, including Artesian, Veolia, Wilmington, and Newark systems, plus private wells in less-served areas. DNREC has monitored saltwater conditions in the Potomac aquifer near the Delaware River, and older housing can make household plumbing relevant to lead results.
Confirm the exact PWSID and current CCR for public water. For private wells or a property near a documented investigation area, use DNREC well records and a certified laboratory rather than applying a countywide assumption.
| Question | Useful local starting point |
|---|---|
| Public water | Confirm the exact PWS ID in Delaware Drinking Water Watch or on the current bill. |
| Service territory | Review the official Delaware PSC CPCN water-territory GIS layer as a utility-territory discovery tool; it is not an address-level guarantee. |
| Private well | Review the DNREC well permit/record and water-use/water-level data, then use a certified laboratory or Delaware DPH testing resources. |
| UD/DGS research context | For aquifer, groundwater, and regional research context, review DGS/UD hydrologic information and DGS digital datasets. These sources are not address-level tap-water results. |
| Data-source guide | Use the Delaware water data-source guide to interpret PWS, CCR, well, territory, and lab records. |
| Before treatment | Match the system to the actual CCR or test result; a municipality is not one water system. |
Water system providers for Willow Grove Mill, DE
Provider rows are based on EPA public-water service-area relationships and named-system records. Some boundaries are modeled estimates. Confirm your exact PWS ID through Delaware Drinking Water Watch, your utility, or your current bill.
| PWS ID | System | Provider | Contact | Mapping status | Official links |
|---|---|---|---|---|---|
DE0020122 | WILLOW GROVE MILL | WILLOW GROVE MILL | See utility / DWW record | Named-system page anchored to listed municipality | Provider website Drinking Water Watch |
System details and report coverage
| System / PWS ID | System type | Sample year(s) | Report year(s) | Coverage status | Official record |
|---|---|---|---|---|---|
DE0020122WILLOW GROVE MILL | community-water-system | 2024, 2023 | 2024 | Extracted contaminant rows available | Official record/report source |
Reported contaminant data and report status for Willow Grove Mill, DE
| PWS ID | System | Data point | Reported level/status | Limit or context | Comparison | Sample year | Report year | Source PDF page | Source |
|---|---|---|---|---|---|---|---|---|---|
DE0020122 | WILLOW GROVE MILL | Chloride | 5.9619 MG/L | Secondary standard; see Delaware DPH table | Reported | 2024 | 2024 | 385 | Source |
DE0020122 | WILLOW GROVE MILL | Sulfate | 6.5734 MG/L | Secondary standard; see Delaware DPH table | Reported | 2024 | 2024 | 385 | Source |
DE0020122 | WILLOW GROVE MILL | Methyl Tert-Butyl Ether | 0 UG/L | Secondary standard; see Delaware DPH table | Reported | 2023 | 2024 | 385 | Source |
All available reports and official records
How to Read This Info for Willow Grove Mill, DE
Use the PWS ID to open the matching Delaware Drinking Water Watch record and current Consumer Confidence Report. The named-community relationship does not mean every nearby address uses that system.
Rows labeled “Local report status” identify report coverage and are not contaminant measurements. Private wells are not covered by public-water CCRs.
Frequently asked questions
Who is my water provider in Willow Grove Mill?
Review the mapped PWS/provider table above, then confirm the exact system through Drinking Water Watch or your bill.
Are contaminant levels available for Willow Grove Mill?
Where a current CCR row has been parsed it is shown above; otherwise the page shows the mapped report status and links to the live official record.
Data may be missing, modeled, dated, or limited. Do not interpret this page as an address-level service determination or a complete public-water inventory.
Last reviewed: July 21, 2026