Soil labs by state
District of Columbia
Municipal requirements we found in District of Columbia, each linked to the official page.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
- State soil lab
- University of the District of Columbia (UDC) Environmental Quality Testing Laboratory (EQTL)
- Lab website
- Official page →
- Basic test price
- $20.00 per sample for ST11 "Standard gardening" soil testing, including extractable Ca, Mg, K, PO4, pH, organic matter content, and lead screening analysis
Key facts for District of Columbia
- UDC is the District of Columbia’s land-grant university, and its College of Agriculture, Urban Sustainability and Environmental Sciences (CAUSES) administers land-grant programs for the District.
- UDC’s Environmental Quality Testing Laboratory (EQTL) offers soil testing services, and its public lab services page says customers can request a quote or submit an order for sample analysis including soil, bio-solids, compost, water, wastewater, and plant tissue.
- The current UDC EQTL fee schedule dated June 28, 2023 lists ST11 "Standard gardening" soil testing at $20.00; that test includes macro nutrients, pH, organic matter content, and lead screening analysis.
- UDC’s EQTL standard terms and conditions dated August 5, 2026 say customers must submit samples with a completed and signed Chain of Custody form.
- The same UDC terms and conditions say payment is due upon sample delivery, unless prior payment arrangements are made, and specify delivery/payment at UDC’s Van Ness campus, Building 39, Room 201.
- UDC’s EQTL services page also says the lab offers sample collection, courier services including on-site pickup, and sample-kit drop-off within DC.
- The Chain of Custody form identifies the lab at 4200 Connecticut Avenue NW, Building 42, Room 110, Washington, DC 20008, and is the official sample-submission form for general sample submission.
- I did not find any current official county Extension office finder or county-based drop-off system for DC; UDC materials describe Cooperative Extension as district-wide rather than county-based.
Helpful guides
- How to take a soil sample for a lab test
- University soil labs vs. private labs vs. home kits
- How to read a soil test report
- Soil pH and lime: what your test is telling you
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