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Water Quality Testing

Questions?

Please contact Philip LaFranchi, Construction Coordinator, at lafranchip@issaquah.wednet.edu or 425-837-7042.

PDF Results

For a copy of the full report in PDF format, please click here.

See My School's Results (May 2019)

Elementary:

Middle School:

High School:

District Facilities:

Water Quality Standards and Testing Procedures

The Issaquah School District contracted with PBS Engineering and Environmental Inc., to perform its routine water safety testing in 2018. The facilities and sites tested included all 15 elementary schools, all five middle schools, and all four high schools in addition to the administration building and three operational complexes. None of the facilities were found to have systemic or facility-wide lead contamination in the drinking water. 

The EPA has set an action level of 15 parts per billion (ppb) of lead in a one liter sample in public water systems. In order to distinguish between a problem at the source and a problem within a specific building, i.e. the pipes, fixture, or other components like solder, the EPA has set the individual action level at 20 ppb for a 250 ml sample. However, the ISD has historically taken action when results come back over 15 ppb for a 250 ml sample and used this threshold again in our latest round of testing.

Individual fixtures at some facilities were found to exceed the EPA recommended action level of less than 20 parts per billion (ppb) lead, indicating localized contamination. The typical cause of lead contamination at the Issaquah School District facilities appeared to be lead-containing fixtures, lead-containing (brass) fittings, and/or lead-containing pipe joint solder.

All potential drinking water sources were tested, including every drinking fountain, sink, ice machines, hose bib, bathroom sinks, staff and all classroom sinks, kitchen prep faucets, water bottle stations, instant hot water faucets, and hose bibs where an athlete might fill their water bottle as well as emergency showers and locker room showers.

Sinks labeled “non-potable” indicating the water is not suitable for drinking, custodial closet sinks, dedicated dish washing equipment and sinks, and specialized hand washing areas not affiliated with food preparation were not tested.  

Building by building results are available below. To view the report in its entirety, please use this link to access the full report document.

Results of Water Quality Testing by Facility - May 2019

The following table is a list of drinking water sources and sites tested that did not meet the EPA criteria for lead content in drinking water and the associated remedial activity performed by the Issaquah School District.

Elementary Schools

Apollo Elementary

LOCATION REMEDY 
Office 213 Sink
Fixture Replaced
Storage Room 226 Sink     
Fixture Replaced
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Briarwood Elementary

LOCATION REMEDY 
All External Hose Bibs     
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads Sign posted at fixture - Non-potable water - Do Not Drink

Cascade Ridge Elementary

LOCATION REMEDY 
All External Hose Bibs     
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads
Sign posted at fixture - Non-potable water - Do Not Drink

Challenger Elementary

LOCATION REMEDY 
Kitchen Kettle
Fixture Replaced
All External Hose Bibs     
Sign posted at fixture - Non-potable water - Do Not Drink

Clark Elementary

LOCATION REMEDY 
All External Shower Heads      Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Cougar Ridge Elementary

LOCATION REMEDY 
Room 142 Classroom Left Sink     
Fixture Replaced
Room 148 Classroom Sink     
Fixture and soldered feed lines replaced
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Creekside Elementary

LOCATION REMEDY 
Music 171 Sink
Fixture Replaced
All External Hose Bibs     
Sign posted at fixture - Non-potable water - Do Not Drink
All Show Heads
Sign posted at fixture - Non-potable water - Do Not Drink

Discovery Elementary

LOCATION REMEDY 
Kitchen Kettle
Fixture Replaced
Kitchen - Faucet to Right of Kettle Fixture Replaced
Room 13 Fixture Replaced
Room 14 Fixture Replaced
Activity Center Across Rooms 17&18
Fixture Replaced
Rooms 18-24 Wing Activity Center Sink Left
Fixture Replaced
Rooms 18-24 Wing Activity Center Sink Right
Fixture Replaced
Music Room Sink
Fixture Replaced 
Media Center/Library Office
Fixture Replaced 
Staff Workroom
Fixture Replaced
Staff Workroom Men’s Bathroom
Fixture Replaced
Room 1 Bathroom Hallway Sink
Fixture Replaced
Room 2 - Office
Fixture Replaced
Room 3
Fixture Replaced 
Room 6 Fixture Replaced 
Room 8 - Left Sink Fixture Replaced 
Room 8 - Right Sink
Fixture Replaced
ELL Room - Left Sink
Fixture Replaced
ELL Room - Middle Sink
Fixture Replaced
ELL Room - Right Sink
Fixture Replaced
Room 11
Fixture Replaced
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Endeavour Elementary

LOCATION REMEDY 
Kitchen Kettle Fixture Replaced
Room 306 Work Room Sink
Fixture Replaced
Room 603 Activity Center Left Room Sink
Fixture Replaced 
Room 506 Classroom Sink Fixture - Sink
Fixture Replaced 
Room 511 Book Room Sink
Fixture Replaced 
Room 204 Activity Center Left Fixture - Sink
Fixture Replaced 
Room 209 Library Office
Fixture Replaced 
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads Sign posted at fixture - Non-potable water - Do Not Drink

Grand Ridge Elementary

LOCATION REMEDY 
All External Hose Bibs     
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads
Sign posted at fixture - Non-potable water - Do Not Drink

Issaquah Valley Elementary

LOCATION REMEDY 
Music Room Office Sink
Fixture and soldered feed lines replaced
Room 202 Drinking Fountain     
Fixture Replaced
Computer Lab Office Sink
Removed from service
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Maple Hills Elementary

LOCATION REMEDY 
Kitchen Kettle
Fixture Replaced
Kitchen, Left HB     
Removed from service
400 Wing Shared Area Sink Left Fixture Replaced
Room 407 Sink
Fixture Replaced
300 Wing Shared Area Sink Right     
Fixture and soldered feed lines replaced
Room 601 Upper Sink
Fixture Replaced
Music Room Office 609 Sink
Fixture and soldered feed lines replaced
All External Hose Bibs Sign posted at fixture - Non-potable water - Do Not Drink 
All Shower Heads Sign posted at fixture - Non-potable water - Do Not Drink

Newcastle Elementary

LOCATION REMEDY 
2nd Floor 240 Hallway - Room 247 Custodian - Sink
Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads
Sign posted at fixture - Non-potable water - Do Not Drink

Sunny Hills Elementary

LOCATION REMEDY 
First Floor Custodial Sink
Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs     
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads
Sign posted at fixture - Non-potable water - Do Not Drink

Sunset Elementary

LOCATION REMEDY 
"C" Wing Janitor Room Sink
Sign posted at fixture - Non-potable water - Do Not Drink
"A" Wing Storage Room Sink
Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Middle Schools

Beaver Lake Middle School

LOCATION REMEDY 
Room M-2 Sink
Fixture and soldered feed lines replaced
Music Room Office Sink Fixture Replaced
Front Office Work Room Sink Fixture Replaced
Room B-6 Classroom Sink Fixture Replaced
Room B-7 Classroom Sink Fixture Replaced
Room B-5 Classroom Sink Fixture Replaced
Room B-3 Classroom Sink Fixture Replaced
Room B-2 Classroom Sink Fixture Replaced 
Room B-1 Classroom Left Sink Fixture Replaced 
Room B-1 Classroom Office Sink Fixture and soldered feed lines replaced
Room A-3 Classroom North Wall Middle Sink Fixture Replaced
Room A-3 Classroom North Wall Right Sink

Sign posted at fixture - Non-potable water - Do Not Drink

Room A-3 Office Sink Fixture Replaced
Room D-10 Classroom Sink Fixture Replaced 
Room D-6 Classroom Sink Fixture Replaced 
Room D-5 Classroom Sink Fixture Replaced 
Room D-4 Classroom Sink Fixture Replaced
Room D-3 Classroom Sink Fixture Replaced
Room D-2 Classroom Sink Fixture Replaced
Room C-12 Classroom Sink Fixture Replaced
Room C-11 Classroom Sink Fixture Replaced
Room C-10 Classroom Sink
Fixture Replaced 
Room C-8 Classroom Sink
Fixture Replaced
Room C-6 Classroom Sink
Fixture Replaced 
Room C-5 Classroom Sink
Fixture Replaced
Room C-3 Classroom Sink
Fixture Replaced
Room C-2 Classroom Sink
Fixture Replaced
All Science Classroom Sinks
Sign posted at fixture - Non-potable water - Do Not Drink
All Science Eyewash Stations
Sign posted at fixture - Non-potable water - Do Not Drink
All Showerheads Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Issaquah Middle School

LOCATION REMEDY 
All Shower Heads Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink
All Science Eyewash Stations Sign posted at fixture - Non-potable water - Do Not Drink

Maywood Middle School

LOCATION REMEDY 
Classroom 103 Sink
Fixture and soldered feed lines replaced
Library Office Sink
Fixture Replaced
All Shower Heads
Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs Sign posted at fixture - Non-potable water - Do Not Drink 
All Science Eyewash Stations
Sign posted at fixture - Non-potable water - Do Not Drink

Pacific Cascade Middle School

LOCATION REMEDY 
Kitchen North Wall Right Sink
Fixture Replaced
All Shower Heads
Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink
All Science Eyewash Stations
Sign posted at fixture - Non-potable water - Do Not Drink

Pine Lake Middle School

LOCATION REMEDY 
Room 435 Kitchen, South Dishwash Bay - Left Sink
Sign posted at fixture - Non-potable water - Do Not Drink / just for rinsing dishes prior to wash
Room 435 Kitchen, South Dishwash Bay - Right Sink Sign posted at fixture - Non-potable water - Do Not Drink / just for rinsing dishes prior to wash
Room 435 Kitchen, South Wall Sink Removed from service
Room 207 Classroom Sink Removed from service
Room 215 - Prep Room Sink Sign posted at fixture - Non-potable water - Do Not Drink
Room 210 Culinary - West Wall - West Sink Fixture Replaced
Room 210 Culinary - West Wall - Northwest Sink Removed from service
Room 210 Culinary - North Wall - Northwest Sink Fixture Replaced
Room 210 Culinary - North Wall - Northeast Sink
Removed from service
Room 202 Classroom Sink
Removed from service
Room 204 Classroom Sink
Removed from service
Room 235 Classroom Sink Removed from service 
Room 236 Classroom Sink
Removed from service 
Room 228 Classroom Sink
Removed from service 
Room 241 Classroom Sink
Removed from service 
Room 224 Classroom Sink
Removed from service 
Room 208 Classroom Drinking Fountain
Removed from service 
All Science Classroom Sinks
Sign posted at fixture - Non-potable water - Do Not Drink
All Science Eyewash Stations
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

High Schools

Gibson Ek High School

LOCATION REMEDY 
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink
All Eyewash Stations Sign posted at fixture - Non-potable water - Do Not Drink

Issaquah High School

LOCATION REMEDY 
Room 1202 Southwest Corner Left Sink
Removed from service
Floor 1, Sect C, Room 1419 Shop Left Sink Fixture Replaced
Room 2218 Fixture Replaced
Room 2309 Fixture Replaced
All Science Classroom Sinks
Sign posted at fixture - Non-potable water - Do Not Drink
All Science Eyewash Stations
Sign posted at fixture - Non-potable water - Do Not Drink
All Showerheads Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Liberty High School

LOCATION REMEDY 
Room 4205, Refrigerator Ice Machine Removed from service
Room 4207, Teachers’ Desk (Science) Sink
Sign posted at fixture - Non-potable water - Do Not Drink
Room 4209, Teachers’ Desk (Science) Sink Sign posted at fixture - Non-potable water - Do Not Drink
Kitchen Kettle
Fixture and soldered feed lines replaced
Lower Floor Room 2128 Laundry Sink
Sign posted at fixture - Non-potable water - Do Not Drink
Stadium - Women’s Restroom Right Sink
Fixture Replaced
Stadium Concessions Left Sink
Fixture Replaced
All Science Classroom Sinks
Sign posted at fixture - Non-potable water - Do Not Drink
All Science Eyewash Stations
Sign posted at fixture - Non-potable water - Do Not Drink
All Showerheads
Sign posted at fixture - Non-potable water - Do Not Drink 
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

Skyline High School

LOCATION REMEDY 
Servery - Outside of Kitchen - Hand Wash Sink
Fixture Replaced
Room 1302 Sink
Fixture Replaced
Room 1402 Sink
Fixture Replaced
Room 1404 Sink
Fixture Replaced
Room 2404 Classroom Sink
Fixture Replaced
Room 2414 Classroom Sink
Fixture Replaced
Room 2218 Classroom Sink
Fixture Replaced
Practice Rooms Sink
Fixture Replaced
Stadium Concessions Left Hand Washing Sink
Fixture Replaced
All Science Classroom Sinks
Sign posted at fixture - Non-potable water - Do Not Drink
All Science Eyewash Stations
Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink

District Facilities

Administration Building (565 NW Holly St, Issaquah, WA)

LOCATION REMEDY 
Se Hallway, Janitor's Office - Sink
Sign posted at fixture - Non-potable water - Do Not Drink
Janitorial Closet 204 Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs
Sign posted at fixture - Non-potable water - Do Not Drink 

May Valley Service Center

LOCATION REMEDY 
Electrical Shop Sink Fixture Replaced
Metal Shop Sink Sign posted at fixture - Non-potable water - Do Not Drink
All External Hose Bibs Sign posted at fixture - Non-potable water - Do Not Drink
All Eyewash Stations Sign posted at fixture - Non-potable water - Do Not Drink

Transportation - Main

LOCATION REMEDY 
All External Hose Bibs Sign posted at fixture - Non-potable water - Do Not Drink
All Shower Heads Sign posted at fixture - Non-potable water - Do Not Drink

Transportation - Satellite

LOCATION REMEDY 
All External Hose Bibs Sign posted at fixture - Non-potable water - Do Not Drink
All Eyewash Stations Sign posted at fixture - Non-potable water - Do Not Drink