Water testing in Delaware
Lowest price: $2, Delaware Division of Public Health, Public Health Laboratory (DPHL).
Delaware Public Health Laboratory Private Well Water Testing
$2
- Bacteria
- E. coli
- Nitrate
- Fluoride
- Chloride
- +6 more
Pick up a sample form and bottle for $2.00 each from a county EHFS office or the Delaware Public Health Laboratory, collect the sample, and return it to any EHFS office or the lab by 9:00 AM Monday through Thursday.
Private well owners; homeowner use only, not for real estate transactions
- Delaware Public Health Laboratory, 30 Sunnyside Rd., Smyrna · 302-802-5000
- EHFS New Castle County, Chopin Building, Suite 105, 258 Chapman Rd., Newark · 302-283-7110
- EHFS Kent County, Thomas Collins Building, Suite 5, 540 S. DuPont Highway, Dover · 302-744-1220
- EHFS Sussex County, Thurman Adams State Service Center, 546 South Bedford Street, Georgetown · 302-515-3300
Checked October 1, 2026. Report a change