WATER INSTRUCTIONS
DROP OFF SAMPLE for testing
You can pick up FREE SAMPLE BOTTLES at Rose City Labs.
Some tests are TIME* and or TEMPERATURE** sensitive.
There are 2 types of water sampling: FIRST DRAW and FLUSH DRAW.
Identify your sample type from the list below, and follow sampling instructions.
FIRST DRAW
FIRST DRAW TEST will identify potential heavy metals IN the fixture. First-draw samples are intended to test the water as it has been sitting in your home’s pipes, typically overnight. The EPA recommends FIRST-DRAW SAMPLES from all fixtures used for consumption and prioritizing sampling high-risk fixtures.
• Copper
• Iron
• Lead
• Legionella (option) * **
• Manganese
FLUSH DRAW
FLUSH DRAW TEST will identify potential contaminants BEHIND the fixture. Use this method to test the water further upstream from the fixture, including the source and any distribution plumbing (city or well). Different situations may require different amounts of flush time, depending on the distance of the faucet from the source.
• Arsenic
• Chlorine
• Coliform / E. coli *
• Fluoride
• Legionella (option) * **
• Nitrate
• Pesticides
• PFAS **
• pH
• Radon
• Total Dissolved Solids
• Water Hardness
STEP-BY-STEP INSTRUCTIONS
STEP 1: WAIT 8 HOURS
FIRST DRAW STEP 1
Do not run the water for at least 8 hours. Collect water in supplied bottle immediately as it first comes out of the faucet. Fill bottle completely to top lip.
STEP 1: FLUSH THE LINE
FLUSH DRAW STEP 1
Before taking the FLUSH sample, flush the pipeline in your structure completely. Run water for at least 3-5 minutes, or until the temperature is constant.
CONTINUE STEPS…
STEP 2: TAKE SAMPLE
Bottle must be filled completely for a successful analysis. Make sure cap is tight so that water does not leak. Fill out label on the sample bottle.
STEP 3: TeMPerature OPTION
If your specific test is temperature sensitive, be sure to place the sample bottle on ice or on an ice pack in a cooler to transport. See the test list above to determine.
STEP 4: Time option
If your specific test is time sensitive, be sure to deliver within 24 hrs once you have taken the water sample. See the test list above to determine.
STEP 5: DROP OFF
Bring sample bottles to Rose City Laboratories.
7200 SE Johnson Creek Blvd
Portland, OR 97206
STEP 6: FILL OUT COC
Fill out Chain of Custody when you drop off your sample and make payment.