LP 23-00001 Thorp Landing Final Decision 7 5 23

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2023. Public Health commented that their JPR with DOH that they don't approve above 9 connections at the county so that the applicant would need to work with DOH for a system for 10 lots. DOH on February 23rd, 2023 then asked for clarification on what the applicant is proposing for the water system on these lots and if they were expanding the existing "Thorp Landing" water system. Staff then clarified on March 1, 2023 that the applicant was using an existing group B well to serve 2 of the new lots and a new group B well to serve the other 8 lots. After this clarification, DOH said that the two Group B water systems would be considered a "project" for ground water withdrawal and water rights and could not withdraw more than 5,000 gallons a day. They advised the applicant to confirm this with Ecology on the matter. They also said that the proposal for expansion of a group B well and a new group B well would be handled by Kittitas County Public Health. DOH sent new comments for the notice of Public Hearing on June 5, 2023, stating that if 10 lots are served as a collective water system, then it would require a Group A Water System that would have to be approved by them. 12.3.1 Applicant response: "The plat will have 2 lots served by an existing and approved Group B well and a new Group B well is proposed on Lot 7 that will serve the rest of the proposed plat. The existing Group B Water system is not being expanded and is approved for 6 connections (see Exhibit 10 of application submittal). Also see e-mail chain from February 22 and March 1, 2023. All domestic water to serve the property which is the subject of this plat application will be withdrawn from two wells. One well has already been classified as a Group B system, and it serves lots not involved with the plat, but which are described as Kittitas County Tax Parcel Nos. 19588, 19589, 19590, 19591, 19592, and 19593. Two of these lots are owned by third parties and they had building permits issued after the current landowner bought a Kittitas County Mitigation Package. The plat will add 10 lots to the above six lots, for a total of 16 lots. Each lot may withdraw 275 gallons per day, so the combined withdrawal of ground water from the property is under 5,000 gallons per day. Because all of the property has irrigation water from the West Side Irrigation Company, there is no need for any outdoor irrigation to occur using ground water. The applicant, through covenants, conditions, and restrictions, will restrict individuals acquiring lots within the plat to 275 gallons of water per day with no outdoor use of water. Additionally, see responses related to outdoor irrigation below in response to the West Side Irrigation Company's comments." 12.3.2 Hearing Examiner Finding: CDS Staff transmitted these comments to the applicant. The Hearing Examiner sets as a condition of approval to this proposal that the Applicant obtain a Group B Well approval from Kittitas County Public Health if they are adding 2 connections to an existing well and adding a new group B well. The Hearing Examiner also sets as a condition of approval that the Applicant get a group A well approval from the State Department of Health if any system is to serve 10 or more lots. 12.4 Kittitas County Fire Marshal: Department of Ecology: The Department of Ecology made comments on the withdrawal of groundwater and said anything beyond 5,000 LP-23-00001 Thorp Landing Long Plat Page 4 of 17