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Twiss Analytical Laboratories

26276 Twelve Trees Lane, Suite C, Poulsbo, Washington 98370
Monday - Friday 8:00am to 5:00pm

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Analytical and
Environmental
Laboratories

(360) 779-5141 voice
(360) 779-5150 fax
CAGE code: 03GU8
CCR Registered
Customer Service

Working for a cleaner safer better world

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Sampling Instructions
Courier Service
Driving Directions

Proud member of:

Poulsbo Chamber of Commerce

We gladly accept:

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Pick Up and Delivery Routes

Courier Services

Twiss Analytical courier service is available from Port Angeles to Gig Harbor at no cost to our customers.

These courier locations are a courtesy to our customers.
Please direct all questions about bottles, sampling, and testing to Twiss laboratory personnel at
360-779-5141.

Clallam County - Port Angeles Area- Every Wednesday at 2:00pm Drop off samples on Wednesday before 1:30pm for pick up by the courier. Bottles and forms are available at this location.	Jace Real Estate 3430 E. Highway 101 Port Angeles, WA 360-452-1210

Clallam County – Sequim Area Every Wednesday and Friday at 12:00pm. Drop off samples on Wednesday or Friday before 12:00pm for pick up by the courier. Bottles and forms are available at this location.	Canal Pumps & Service 110 Village Sequim, WA 360-683-6328

Jefferson County – Port Hadlock/Port Townsend Area Every Wednesday at 12:30 pm. Drop off samples on Wednesday before 12:30 pm for pick up by the courier. Bottles and forms are available at this location.	Jefferson County PUD office 230 Chimacum Road Port Hadlock, WA 360-385-5800

Kitsap County – Port Orchard Area Every Tuesday through Friday at 8:30pm. Drop off samples Monday through Thursday before 4:00pm for pick up by the courier the next morning. Bottles and forms are available at Northwest Water (upstairs).	Nicholson Well Drilling/Northwest Water Systems 7245 Bethel Burley Road SE Port Orchard, WA 360-876-4421

Kitsap County – Bremerton Area Tuesday through Thursday at 3:00pm, and Friday before noon. Drop off samples Tuesday through Thursday before 3:00pm or before noon on Friday for pickup by the courier. Bottles and forms are available at this location.	Kitsap Public Health District Office 345 6^th Street, Suite 300 Bremerton, WA 360-377-5235

Kitsap County – Bainbridge Island Area Every Tuesday at 1:30pm. Drop off samples on Tuesday before 1:30pm for pick up by the courier. Bottles and forms are available at this location.	Bainbridge Island City Hall 280 Madison Ave Public Works Department Bainbridge Island, WA 206-842-2016

Mason County – Belfair Area Every Tuesday at 9:00am Drop off samples on Mondays before 4:00pm for pick up by the courier on Tuesday morning. Bottles and forms are available at this location.	Belfair Water District #1 22451 NE State Route 3 Belfair, WA 360-275-3008

Pierce County – Purdy/Gig Harbor area Every Wednesday at 9:00am Drop off samples Tuesday for pickup on Wednesday.	Cost Less Pharmacy Highway 302 Lake Kathryn Shopping Center Gig Harbor, WA 253-857-7944

Shipping samples

If you choose to ship your samples to the laboratory, U.S. Mail, UPS, FedEx or any other service may be used to ship samples to us. Please be sure to package samples to protect from breakage and/or leakage and label the outside of the package as "contents fragile". Bottles will normally be shipped to you by UPS.

Driving Directions to Twiss Analytical Laboratories

From South of Poulsbo:

Take state Highway 3 north towards the Hood Canal Bridge, go approximately 3.5 miles past the Highway 3-305 interchange (second Poulsbo exit). There will be a 76 gas station on the right side of the highway. Immediately before the gas station turn left onto Pioneer Way. Go west on Pioneer Way approximately 1/2 mile and turn left onto Twelve Trees Lane. Go to the third driveway on the left (about 3/4 of the way down the street) and turn into the Business Park. Go all the way to the rear of the Business Park and turn left again. The laboratory will be right in front of you in Suite C.

From Jefferson/Clallam Counties:

Take state Highway 104 towards the Hood Canal bridge, cross the Hood Canal Bridge and turn south on Highway 3, go south approximately 4 miles. There will be a 76 gas station on the left side of the highway. Immediately after the gas station turn right onto Pioneer Way. Go west on Pioneer Way approximately 1/2 mile and turn left onto Twelve Trees Lane. Go to the third driveway on the left (about 3/4 of the way down the street) and turn into the Business Park. Go all the way to the rear of the Business Park and turn left again. The laboratory will be right in front of you in Suite C.

From Bainbridge Island-Kingston-Seattle

Take Highway 305 through Poulsbo to State Highway 3. Get on Highway 3 going North toward the Hood Canal Bridge. Go approximately 3.5 miles past the Highway 3-305 interchange (second Poulsbo exit). There will be a 76 gas station on the right side of the highway. Immediately before the gas station turn left onto Pioneer Way. Go west on Pioneer Way approximately 1/2 mile and turn left onto Twelve Trees Lane. Go to the third driveway on the left (about 3/4 of the way down the street) and turn into the Business Park. Go all the way to the rear of the Business Park and turn left again. The laboratory will be right in front of you in Suite C.

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Last modified: July 12, 2009