Drinking Water
Washington State accredited drinking water analysis services are offered at ARLLC, available to homeowners, renters, property managers, daycare center operators, or anyone else concerned about drinking water quality. Contact ARLLC for more information regarding pricing, turnaround time, and sample collection.
Reporting limits listed in the tables below represent normal sample conditions and may be higher for any sample depending on target analyte levels, matrix complexity, moisture content, or background interference. ARLLC reserves the right to screen all samples prior to preparation or analysis to determine optimal analytical outcome. A zip file with all the analysis tables below can be downloaded here.
Lead and Copper Analysis Only (Homeowners and Daycare Providers)
A form for lead and copper analysis only can be downloaded here. General sampling instructions are included. Normal analysis turnaround time is 10 business days. Sample container(s) can be shipped to the sampling location for an additional $20.00 charge and samplers can ship samples back to ARLLC at their own expense. Sample bottles can be picked up or returned to our Tukwila location 8:00 AM to 5:00 PM Monday through Friday. Upon acceptance of samples, we require payment via credit card, check, or cash (exact change please). Contact an ARLLC project manager for pricing and exact scheduling details.
Additional details about drinking water analysis and reporting can be found on the Washington State Department of Health Laboratory Resources page.
- Turbidity, EPA 180.1 SM 2130 B-01
- Arsenic EPA 200.8
- Copper EPA 200.8
- Lead EPA 200.8
- Anions SM 4110 B-00 (Cl, Fl, NO3, NO2, OPhos, SO4)
- Anions EPA 300.0 (Cl, Fl, NO3, NO2, OPhos, SO4)
- Nitrate + Nitrite-N, Nitrite-N, Nitrate-N EPA 353.2
- Volatiles EPA 524.3
- Alkalinity SM 2320 B-97
- Color SM 2120 B-01
- Total Cyanide SM 4500-CN ̄ E-99
- Hardness SM 2340 B-97 (Calculated-SW6010D Ca and Mg)
- pH EPA 9040C
- Total Dissolved Solids SM 2540 C-97
- Conductivity SM 2510 B-97
- Total Organic Carbon SM 5310 B-00
- Dissolved Organic Carbon SM 5310 B-00
Summary tables are examples only. Please consult with your project manager for current published limits.