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Updated: August 11, 2022 at 8:53 AM
Raingardens Northwest, Inc
Phone
253.212.3835
Email
amanda@raingardensnw.com
Website
https://raingardensnorthwest.com/
Services
Maintenance for…
Updated: September 30, 2022 at 8:15 AM
Tidewater Environmental Services, Inc.
Phone
503.793.1066
Secondary phone
503.793.1065
Email
trevor.kitchen@tidewater.com
Website
https://www.tidewaterenv.…
Updated: May 10, 2023 at 8:20 AM
Kings Stormwater Services LLC
Phone
360.977.8283
Email
kingsstormwater@gmail.com
Services
Maintenance for ponds and treatment wetlands
Grading
Structural…
Updated: August 3, 2023 at 12:54 PM
Environmental Business Solutions
Phone
503.969.3900
Email
ebspdx@gmail.com
Website
http://www.e-b-s-corp.com/
Services
Maintenance for ponds and…
Updated: June 14, 2022 at 1:50 PM
Facilities - recognizing your facility
How to recognize your facility
Your homeowners association should have access to information about the locations and types of facilities serving your property. If the…
Updated: June 14, 2022 at 11:14 AM
Facilities - Biofiltration swale
Biofiltration Swale
A biofiltration swale uses grass or other dense plants to filter out sediment and oily materials. Swales often look like flat-bottomed channels with grass growing in…
Updated: October 10, 2018 at 3:37 PM
Facilities - Catch basin
Catch basin and manhole
Catch basin - storm drain
Good - This manhole shows a well
maintained interior.Catch basins and manholes are underground concrete structures typically…
Updated: June 6, 2022 at 3:27 PM
Facilities - Detention pond
Detention Pond
Good: A well maintained detention pond.
Detention ponds are dry between storms.
Good: A well-maintained detention
pond draining slowly after a storm.A stormwater detention…
Updated: June 8, 2022 at 3:27 PM
Facilities - Dry well
Drywell
Good: A typical drywell lid.
Good: A well-maintained drywell interior.A drywell is an open-bottomed manhole used to infiltrate stormwater into the ground through holes in the…
Updated: June 6, 2022 at 3:28 PM
Facilities - Filter strip
Filter Strip
A filter strip is a straight swatch of grass that removes sediment and oils from stormwater. Usually, filter strips are along edges of paved areas such as parking lots and roads…