Articles

February 19, 2025FAQ's from the Hazard Mitigation Survey

King County Water District No. 90

FAQ’s and Comments regarding the Hazard Vulnerability Customer Survey

January & February 2025

 

Thank you for participating in the survey! We were excited to receive 642 responses to our Hazard Vulnerability Survey. 

Several questions and themes emerged from the comment sections of the survey. I would like to highlight some of these points here.

1.    Earthquake Risk—Among all potential hazards in our area, customers express the most concern about earthquakes, and rightfully so, as the District also identifies this as our greatest risk. Recent LIDAR technology has revealed that the southernmost fault line of the Seattle Fault runs along May Valley Road. The last significant earthquake on this fault occurred approximately 1,100 years ago, resulting in a vertical displacement of 20 feet on Mercer Island and West Seattle. An earthquake in this location is likely to be shallower and could potentially cause more damage to the District than a larger earthquake on the Cascadia Fault.

 

a.    What is the District doing to prepare for earthquakes?

                                          i.    We have updated our Construction Standards to ensure that all new water mains are restrained (tied down). New water mains will be made of flexible HDPE pipe, which is welded together. This type of pipe does not pull apart like other water mains and can withstand ground movement.

                                        ii.    We have installed “Shake Alert” early warning system at multiple locations, with more planned in the future. This system can alert the District of ground movement, allowing us time to shut down pumps to decrease potential damage.

                                       iii.    We are currently seismically upgrading Pump Stations #4, #5, and #6. FEMA is funding approximately 60% of this project.

                                       iv.    We are drilling a new well at the District's office. This site is more secure because it is located outside the landslide and liquefaction zones along the Cedar River. Once completed, this well will enable potable water distribution after an emergency event. FEMA is funding about 75% of this project.

                                        v.    We are installing an emergency intertie with the City of Renton to ensure we can continue providing water if we lose our primary water supply from Seattle Public Utilities (SPU). FEMA is funding approximately 85% of this project.

 

b.    What plans does the District have for addressing future earthquakes?

                                          i.    We continue to replace the Steel and Asbestos Cement (AC) water mains, which are prone to breaking due to ground movement. Currently, we have approximately 4 miles of Steel and 15 miles of AC water mains left in our system. The cost to replace each mile of main ranges from $1.6 million to $2.0 million for the District. The district has replaced four miles of main in the past two years.

                                        ii.    We would like to add an additional intertie with SPU so that if the Cedar Supply is cut off, we could receive water from the Tolt Supply.

                                       iii.    We are also looking for ways to improve the infrastructure that crosses or is adjacent to May Valley Road.

 

2.    Wildfire Risk—Customers' second biggest concern is the risk of wildfires, and we share this concern. District staff operates and tests each fire hydrant at least once every three years to ensure effective operation.

 

a.    Future planning for Wildfires?

                                          i.    We propose expanding the District’s service area boundary to include customers along SE May Valley Road, from Squak Mountain Road SE to Issaquah-Hobart Road SE. This expansion aims to provide water for firefighting efforts on the District's east side. Homes in this area, as well as in most of unincorporated King County, are situated in the Wildland Urban Interface (WUI), which is prone to a higher rate of wildfire activity.

                                        ii.    While we all love parks and open spaces, we are concerned that the north and east sides of the District are adjacent to parks and open spaces that do not have water service. We have been communicating with King County, Local Fire agencies, and the State about adding water so that small wildfires can be addressed before they become large.  

                                       iii.    Our water system wasn't designed to combat wildfires or multiple fires simultaneously, but we are exploring ways to temporarily increase the water supply to address this issue.

 

3.    Severe Weather and Other Hazards—The District is prepared for snow, ice, wind, flooding, cyber-attacks, and extreme heat hazards.

a.    Our Emergency Plan, Continuity of Operations Plan, and IT Contingency Plan are all current and comply with State and Federal requirements.

b.    The District has installed generators at its pump stations to ensure a continuous water supply during power outages.

c.    The Field Crew members are cross-trained, enabling them to respond to any emergency effectively.

d.    We are assessing solar solutions to enhance our electricity resiliency and provide redundancy.

e.    When weather conditions make it unsafe to access the District office, employees can work from home to continue providing customer assistance.

f.     We have emergency fuel, food, and supplies for our staff.

g.    The District has an emergency notification system that sends automated phone and text messages. We are upgrading this technology to make it more user-friendly and speed up notification delivery.

h.    The District is a PSERN (Puget Sound Emergency Radio Network) member to ensure communication during and after an event.

 

i.      The District is a member of WAWARN (Washington Water/Wastewater Agency Response Network). The mission of WAWARN is to support and promote statewide emergency preparedness, disaster response, and mutual aid assistance for Washington’s public and private water-related utilities in the case of a natural or man-made disaster.

j.      After an earthquake or another major disaster, we can distribute potable water directly to customers from our Reservoir #1 location. (You will need to bring your own containers.) In the future, a second location will be available at the District office.

 

4.    Communication - We sought your input on the actions that KCWD90 should take to prepare for a disaster. The majority agreed that upgrading our infrastructure is the most important step. A close second was the need to educate and communicate with the public to inform everyone about our efforts.

 

a.    Customers expressed frustration about not knowing about our current preparations.

b.    Many customers seemed confused by our request for community input on our hazard mitigation plans. Community engagement is a requirement for updating this plan. In general, governments across the nation are striving to be more transparent and to incorporate community input and feedback whenever possible.

c.    Customers requested additional information on emergency preparedness kits, early warning notifications, emergency education, and post-emergency actions.

 

5.    Other Comments

a.    Some customers confuse the District with the larger "King County." For clarification, "King County" in our name indicates our location. We are not part of the King County government; rather, we are a Special-Purpose District governed by three elected officials.

 

b.    In the survey’s comments, some customers have requested additional discounts or reduced rates. However, the reality is that we will never have sufficient funds to achieve all our goals. Replacing just one mile of water main costs between $1.5 million and $2 million, and we have to consider 140 miles of main. Depending on the material type, a water main typically lasts 50 to 100 years. Additionally, we have numerous pump stations, reservoirs, and other essential infrastructure that require upgrades and replacements, all of which need funding. We are actively seeking grants and low-interest loans to help finance these projects. Currently, 25% of your rates are allocated to capital projects.

 

c.    Many customers have suggested that we should allow experts to determine hazard mitigation strategies. We agree! The District collaborates with the EPA, USGS, Washington Department of Health, and Ecology to research and plan for hazards. Additionally, the District utilizes external engineering services from DEA Engineering.

 

d.    Many residents have expressed concerns about having only one access road in and out of their neighborhood. This situation often means there is only one water main supplying the area as well. We are exploring options for creating loops and redundancies in our future improvement plans. Unfortunately, any changes to the road infrastructure fall outside of our authority.

 

e.    Several individuals have suggested burying power lines and trimming trees to reduce the risk of wildfires. While we believe this is a valuable idea, it is not part of our normal scope of work. However, we are focusing on strategies to remove flammable materials around buildings, upgrade building materials and roofs, and implement other "defensible space" activities to mitigate fire risk.

 

f.     Lead pipes have recently garnered attention, raising concerns among customers. The District believes that there are no lead pipes in our system. Lead was banned in our area after 1958, and our first water system was installed in 1956, at which time lead was not included as an approved material.  

 

g.    Most people agree that climate change affects the frequency and intensity of natural disasters. Snow melts earlier each spring, which means we may need to store more water to survive hot, dry summers. In the short term, the district is adding air conditioning units to pump stations to reduce the risk of the pumps overheating when temperatures soar, as they did in 2021 when temperatures reached 110 degrees.

 

h.    Helpful resources:

 

·         EPA Natural Disaster info and preparedness = https://www.epa.gov/natural-disasters

·         State of WA Emergency Management Division = https://mil.wa.gov/emergency-management-division

·         State of WA Department of Health, Drinking Water = https://doh.wa.gov/community-and-environment/drinking-water

·         King County Office of Emergency Management = https://kingcounty.gov/en/dept/executive-services/governance-leadership/emergency-management

·         King County Emergency News = https://kcemergency.com

·         King County Public Health = https://kingcounty.gov/en/dept/dph

 To see results of the Hazard Mitigation Survey, click on this link:

https://www.kcwd90.com/articles.php?ar=213&ac=9

Do you want to know more about what we are doing? Please join us for the Open House on April 8, 2025, from 3 pm to 6 pm or April 9, 2025, from 10 am to noon to learn more!

 

April 30, 2025FLOURIDE IN YOUR WATER

February 22, 2022Four Creeks Consolidation Study

The Four Creeks Ranch Water System (FCR) (DOH ID# 22740-4) is a privately owned, Community Group A water system located in unincorporated King County, just south of Issaquah and east of the Renton Highlands, Washington. The system serves approximately 150 residents with 60 active connections, fed from a single on-site well. FCR operates under a Satellite Management Agreement (SMA) with NW Water Systems based out of Port Orchard, WA. Additionally, FCR has a Time and Materials Contract with King County Water District 90 (KCWD90) (PWSID 41150), allowing for occasional water system maintenance and repairs to be performed by KCWD90.

The FCR community has previously had preliminary discussions regarding water system consolidation with KCWD90 and both parties were interested in exploring the possibility further. KCWD90 has since approached FCR to discuss a consolidation where FCR would transfer all water system assets to KCWD90 and KCWD90 would become the water service provider. The relative locations of the FCR and KCWD90 systems are shown on Figure 1 – Vicinity Map. FCR is approximately 1.1 miles east of the easterly edge of the KCWD90 service area boundary and nearest KCWD90 water mains.

The WA-Department of Health (DOH) has issued KCWD90 a Consolidation Feasibility Grant. The purpose of this grant is to fund a preliminary engineering study, public outreach, cultural reviews, identify land acquisition, and feasibility study for Four Creeks Ranch water system to consolidate with KCWD90 water system. A copy of the grant’s Scope of Work is included in the Appendix. This report is intended to satisfy the preliminary engineering study requirement.

To view the Four Creeks Consolidation Study, please click here.

July 9, 2020Here to Serve Our Entire Community

Clean water is essential to the pursuit of health and happiness and King County Water District No. 90 exists to provide these services to everyone in our community. We serve a diverse population and we want to communicate to you, our customers, that we support equality. 

May 19, 2021Do You Have a Backflow Device?

KCWD90 has partnered with Backflow Solutions, Inc. (BSI), a third-party contractor, to manage the District's Cross Connection Control Program. BSI provides a web-based tracking program and a more efficient and cost-effective means of managing the District's inventory of backflow prevention assemblies.

What does this mean for you as a backflow customer? Click here to find out.

December 15, 2020Resources for Customers Seeking Assistance

This list of resources is available to customers who may need help with utilities, rent, food, etc. We encourage you to pursue these options if you are struggling and need some help.

  1. Bellevue LifeSpring
    Belleve LifeSpring helps with food, clothing, and emergency rent assistance.
    (425) 451-1175
    info@bellevuelifespring.org

  2. Disaster Cash Assistance Program (DCAP)
    DCAP is available to families or individuals without children who face an emergency and don’t have the money to meet their basic needs. This program is available only once within a 12-month period.

    To apply online, visit WashingtonConnection.org and then call 877-501-2233 to complete the required interview. To apply by phone, call 877-501-2233 to complete the entire application process over the phone.

  3. Hopelink
    Housing, transportation, family development, financial assistance, employment programs, and five food banks.
    (425) 869-6000

  4. Issaquah Community Services (ICS)
    Available to residents living within the Issaquah School District. Issaquah Community Services (ICS) helps families with emergency aid to prevent homelessness with rent assistance. It may help pay utility bills, bus tickets and other miscellaneous expenses. Payment is given on behalf of the client; cash is never given.
    (425) 837-3125
    icsoffice180@gmail.com
    http://www.issaquahcommunityservices.org/need-help/

  5. King County 24-Hour Crisis Line
    The 24-Hour Crisis Line provides immediate help to individuals, families, and friends of people in emotional crisis.
    (866) 427-4747

  6. King County Food Banks
    http://verdanthealth.org/wp-content/uploads/King-County-Food-Bank.pdf

  7. King County Housing Authority (KCHA)
    KCHA provides rental housing and rental assistance.
    (206) 574-1190
    StephenN@kcha.org

  8. Low Income Home Energy Assistance Program (LIHEAP)
    LIHEAP helps low-income households with their home energy bills.
    (253) 517-2263
    https://mschelps.org/gethelp/energy/energyeligibility

  9. Renton Salvation Army
    Electric: (425) 255-5969, Ext. 13
    Rent: (425) 255-5969, Ext. 14

  10. St. Vincent De Paul
    Requests for assistance with rent, utilities, food, etc.
    (206) 767-6449

June 23, 2020Policy Change Notification - Testing for Customers with Backflow Devices

Dear Backflow Customer,

You have been identified as a customer with a backflow device and have been included in our annual backflow testing program. King County Water District No. 90 (the District) plans to make significant changes to its backflow testing program effective immediately. Please read below for details:

Nearly 1,300 of the District's 8,150 customers (about 16%) have backflow devices on their property that ensures water can only flow one direction. This device protects the District's water system from contamination through fire systems, irrigation systems, or commercial properties “pulling” chemicals into the drinking water system, should there be a backflow event (i.e. a main break or a fire). The District is required by Washington Law (RCW 246-290-460) to have a backflow program that identifies properties requiring a backflow device and to ensure that these devices are tested annually.

Starting in the Summer of 2020, the administration of the District's backflow program will be outsourced to a third party, BSI Backflow Solutions, LLC (“BSI”). The BSI program requires that all future test reports be filed online through the BSI portal. Moving forward, both you and your previous tester will be notified by BSI each year of when to submit your annual test. The letter will include a unique customer number that your tester will need in order to file your annual test report online. Starting September 1, 2020, your tester will be required to pay $14.95 to file each backflow test online. Ultimately, this fee will be your responsibility, and not the District's.

In past years, the District has sent out letters on May 1st giving customers 60 days to have their devices tested. This year, due to Covid-19, the District had to delay the program because testers notified us that they were unable to obtain enough personal protective equipment to safely test and meet customers at their homes. As we get back to a more normal schedule, District staff has had to determine how to catch-up on necessary work that was delayed due to the quarantine. The backflow program is extremely time intensive for staff, requiring hundreds of hours of staff time every year. Moving to an online submittal format will save the District a significant amount of time that will be reallocated to other projects.

So far in 2020, the District has already received 430 test reports (out of 1,300 devices or 33%). For those of you who have already submitted your report, this change will not impact you until 2021. Additionally, due to the late notice, we were able to negotiate a one-time “free period” to submit your 2020 test report. This free period will be between August 1 to August 31, 2020. Prior to August 1, completed test reports can be emailed to the District at info@kcwd90.com. No test reports will be accepted at the District after July 31.

If you have not submitted your 2020 backflow test report, you can expect your first letter toward the end of July. You do not need to wait for the letter to initiate testing. For your reference, the 2019 list of backflow testers is available on the District's website at https://www.kcwd90.com/forms/000103.pdf.

If you have already submitted your 2020 report, your first backflow letter from BSI will arrive in May of 2021. We anticipate that in 2021 we will be on a more normal schedule with backflow letters being issued in early May and tests due by the end of June.

If you have questions, please contact me by email, darceyp@kcwd90.com.

Sincerely,

Darcey Peterson
General Manager,
King County Water District No. 90

June 27, 2024District's Policy on ADUs

1. INTRODUCTION

Accessory Dwelling Units (ADUs) offer a way to include smaller, affordable homes in 
established neighborhoods. These give homeowners the flexibility to share independent living areas with family members and others while maintaining privacy, including but not limited to allowing seniors to age in place as they require more care, helping extended families to be near one another, and providing rental income. ADUs help to address housing shortages by increasing supply in single-family neighborhoods and providing an affordable place to rent. The benefits that ADUs offer have made them increasingly popular. 

The purpose of this Accessory Dwelling Unit (ADU) Policy is to formally address ADU fees and charges and provide additional requirements for these dwellings as they pertain to water improvements. To the extent the requirements contained in this Policy differ from or conflict with the District Standards and Details, this document shall control. 

An ADU in King County Water District No. 90 (District) must be lawful and permitted 
through the agency having land use permitting authority. For the District, this would be the City of Renton or King County. It is not the purpose of this policy to regulate land use within the authority of other local jurisdictions but rather to provide rules and regulations limited to the jurisdictional authority provided to Water and Sewer Districts pursuant to Chapter 57.08 RCW. This policy and the rules and regulations contained herein should be read within that context.


2. DEFINITIONS

Accessory Dwelling Unit (ADU) - An ADU is defined as an accessory dwelling unit that is either attached to the primary single-family dwelling unit (AADU) or is a detached 
accessory dwelling unit (DADU) that is located on the same residential parcel as the 
primary residence. An ADU is a habitable single-family dwelling unit that provides basic living, sleeping, eating, cooking, and sanitation requirements.

Attached Accessory Dwelling Unit (AADU) – An AADU is an ADU that is physically
attached to the primary single-family dwelling unit.

Detached Accessory Dwelling Unit (DADU) – A DADU is an ADU that consists partly or entirely of a building that is separate and physically detached from the primary single family dwelling unit. Examples would include, but not be limited to, tiny houses, backyard cottages, or converted outbuildings.

Equivalent Residential Unit (ERU) - The term used for the typical amount of water a single family residence uses over the course of a day. 

Single-Family Dwelling Unit – A detached single-family structure containing one dwelling unit, commonly known as a house.

3. WATER SERVICES; COMBINED OR SEPARATE

The meter serving an ADU (DADU or AADU) may be shared with the primary single-family residence or separately serve the ADU.

Existing Meter – ADUs can be served by the existing service line and meter from the District’s water main. Customers with ADUs will be charged a double-use rate. (Two times the Base Rate and two times the Consumption Tiers.) Property Owners with an ADU can purchase a “deduct” meter if they desire to know and/or bill the water for the ADU separately. The deduct meter will be purchased by, and belong to, the Property Owner. The District will not perform maintenance, meter readings, or billing on a deduct meter. 

Every ADU created after November 30, 2023 must be served by at least a 1-inch service line from the water main to the meter, along with a 1-inch meter to serve an ADU and the Primary Residence. A larger service line and/or meter is only required if necessary to serve the ADU adequately. If the Property Owner proposes to serve the ADU with an existing meter and the District determines that the meter is insufficient to do so, the Property Owner must upsize the meter. 

Separate Service and Meter -  Pursuant to HB1337 passed on April 6, 2023, “A city or county may not prohibit the sale or other conveyance of a condominium unit independently of a principal unit solely on the grounds that the condominium unit was originally built as an accessory dwelling unit.”

HB 1337 allows Property Owners to sell an ADU as a separate lot. The primary residence and the ADU cannot be sold separately unless the City of Renton or King County allows the parcel to be split. For this reason, ADUs built after April 2023 should have a separate meter connection for the ADU and will pay the full installation and fees to have a separate meter installed. The service line from the Meter to the ADU is the property owner’s responsibility. The connection charges below (#4) are due when a separate service connection is installed. Property Owners who do not have a separate service connection will have a notice placed on their property title clearly stating that a separate service connection is required to be installed before an ADU is sold as a separate dwelling. Any legal fees and recording costs will be charged to the property owner. The charge for a future separate service line and 
meter will be based on the District’s Schedule of Charges applicable at the time the service is installed. 

4. CONNECTION CHARGES - GENERAL FACILITIES CHARGE (GFC) & SEATTLE FACILITY CHARGE (FC) AND METERS.

ADUs (DADU & AADU) at or under 1,000 square feet will be assessed a General Facility Charge (GFC) that is based on one Equivalent Residential Units (ERU) for water where applicable. 

The cost of the meter installation, either a “Meter Drop” or a “Full Install,” must be paid to the District before the new meter is installed. Meter Drop and Full Install rates are included in the District’s current Schedule of Charges. Additionally, The Seattle Public Utilities Facility Charge (aka Conservation Fee) must be paid at the current single-family rate. All fees are due at the time of meter purchase and/or meter upsize.

5. LOW-INCOME ADUs

The District supports the State’s housing goals as defined in Engrossed House Bill 
1337. The goal of the bill is to “expand housing options by easing barriers to the 
construction and use of accessory dwelling units.” Additionally, the bill states, “The 
legislature intends to promote and encourage the creation of accessory dwelling 
units as a means to address the need for additional affordable housing.”
Section 5 of HB 1337 states, “Cities and Counties may only offer such reduced or 
deferred fees, deferred taxes, waivers, or other incentives for the development or 
construction of accessory dwelling units if: 

1) The units are located within an urban growth area; and

2) The units are subject to a program adopted by the city or county with 
effective binding commitments or covenants that the units will be 
primarily used for long-term housing consistent with the public purpose 
for this authorization.”

To support the State’s goals of creating more low-income housing, ADUs meeting 
these conditions are eligible for a 15% reduction on the District’s General Facility 
Charge. All other fees (permits, meter installation, paving, etc.) are the same rate 
as a single-family home. 

6. BILLING PROCESSES and FEES
Once approval of an ADU is provided by King County or the City of Renton (i.e.,
construction permit), the Property Owner must complete a Water Availability Application in advance of construction to ensure sufficient water is available to the property. Additionally, the property owner is responsible for informing the District when the ADU is ready to be connected to the original service line/meter or when a separate meter and service line are ready to be installed. District staff will install the service line from the main to the meter along with a new meter. The property owner is responsible for installing the service line from the meter to the ADU.

Bimonthly billing will begin for an ADU once a new meter or new connection is made.
Additional fees for permits, inspections, road restoration, and additional staff time will be charged to the property owner. All known fees must be paid in advance of the meter installation. Occasionally, charges for additional staff time and road repair are not known until after the work is completed. Additional charges are due 30 days after being invoiced.

Failure to inform the District that an ADU has been connected to the District Water System will not stop bi-monthly base rate and consumption charges being applied retroactively to the date of connection.

February 20, 2025Hazard Mitigation Survey Results

May 10, 2019West Lake Kathleen Community Update

Construction Update: May 2019

Map: Updated May 2019

Construction is moving along, as the District's contractor, R.W. Scott Construction, is working to complete final sections of the project area. Here's what's happening:

  • Construction along Lake Kathleen Road SE between SE 128th Street and SE 133rd Place continues. The water main and new water services are being installed. Final connections for the water main are expected to be completed in May.
  • Construction of the water main on SE 196th is anticipated to begin in May.
  • Full-width overlay of the roadways impacted by the water main installation has begun and will continue throughout the spring, as weather permits.

September 28, 2018West Lake Kathleen Community Update

September 28, 2018West Lake Kathleen Water Main Improvement Project Map