Water treatment in Delaware
Delaware's new PFAS limits, nitrate in wells & hard water. Free water analysis and systems installed in New Castle, Kent & Sussex.
Delaware's PFOA and PFOS limits of 4.0 ppt took effect in January 2026, ahead of the federal 2029 date[1][2]. Utilities post results on Delaware Drinking Water Watch[3]. Private well owners should test every year for nitrate and bacteria; the Division of Public Health offers free test kits and financial aid[4].
- Nitrate near farms and poultry operations; see the Millsboro story[5].
- PFAS on several utility systems in EPA sampling[6].
Counties we serve
New Castle County, DEWilmington, Newark, Middletown, Bear, HockessinKent County, DEDover, SmyrnaSussex County, DEMillsboro, Lewes, Rehoboth Beach, Georgetown
PFAS in Delaware
PFAS water filters in DelawareState rules and local utility resultsWell water testingWhat to test and how oftenHardness by townUtility hardness figures in mg/L and gpg
Solutions
Clean water starts with knowing what's in it.
Sources
- Delaware Public Health: PFAS in Delaware public drinking water. publichealthalerts.delaware.gov/pfas-in-delaware-public-drinking-water/
- U.S. EPA: Proposed PFOA and PFOS compliance extension rule. www.epa.gov/sdwa/proposed-pfoa-and-pfos-compliance-extension-rule
- Delaware Drinking Water Watch. drinkingwater.dhss.delaware.gov/
- Delaware DPH: Financial aid program and free water testing kits for private well owners (Aug 31, 2023). news.delaware.gov/2023/08/31/dph-launches-new-financial-aid-program-for-private-well-owners-offers-free-water-testing-kits-to-delaware-residents/
- WHYY: Millsboro residents and the Mountaire settlement. whyy.org/articles/millsboro-mountaire-settlement-contaminated-water-delaware/
- U.S. EPA: UCMR occurrence data. www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule
EPA records retrieved Oct 2026 from the EPA SDWIS and UCMR 5 public datasets. Utility records describe a water system, not the tap in your home. Records can lag and may be incomplete.