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Home My WebLink AboutPLT2001-00002 - PLT Application - 5/24/2001 MASON COUNTY DEPARTMENT OF HEALTH SERVICES Emoi.aamaard li Id, t�rOaakn, P.:oaalli IeA LAND SEGREGATIONS REQUIRING GROUP B WATER SYSTEMS ose When land segregation is conditioned upon connection to a new Group B Public Water Systan,assurance is needed that the system will be mstelled in a timely and adequate manner. In order to assure this,Euvi is mental Health requires that either the system be fully approved and installed prior to approval of land segregation,or a bond be posted that msucas funds will be available for construction of the system as needed in the future.Tbs policy is written to clarify the steps inwlved in blase two options. OCess 1. Obtain a Well Site Inspection A well site inspection is needed to assure that an adequate location is identified for the source of water planned for serving the development Apply fan this inspection with Mason County Environmental Health In order for staff to make a valid evaluation of the well site, it is impatem that the application form is fully completed and ac urxte, and that a detailed plot plan is attached If setback requirements aro not or cannot be met, F—nvmim cntal Health staff will work with the applicant to determine if a variance is an option. 2. Secure I00 foot protective radius through the appropriate covenants. 3.. Chowe a Water System Designer A certified water system designer will be able to either design your water system (Option 4A) or help you obtain the necessary bids and financial assurance documents (Option 4.B.) necessary for completion of your land segregation project A list of Mason Cam y certified water system designers is available from the Fnvironmental Health office. 4. EitherinstaflMana orpost bondfor assurance by using one ofthefollawing options: 4A- Option A: Obtain the services of a outifed water system designer to complete the Group B Workbook, provide the necessary documentation refermced in the workbook, install the wafer system as designed, and provide Envrtwmental Health with a Certificate oflrupecdon and linstalladon of Public Water System project. 4B. Option B: Assure water system will be installed in a bwAy mmner by posting a bend. i Record a Declaration of Covenant, and record a Raauichm Covenant if necessary, to tissue, that the proposed well are will remain protected treat sources of comeminatim . Forms for thew documents are available from the Ewuoffiental Health Office. il. Obtain a bid from a certified well driller for the cost of drilling the well and installing the entire water system iii. Submit the bid to Environmental Health, along with evidence that 135% of the bid has bees placed in an escrow account guaranteeing installation of the system in a timely manner. Material/Environmental Health Fees Well Site Inspection Application................................. . ........... ..................... $75 Group B Design Bookle(Design Review(2 omnectirns) .......... .................................... sloo Group B Design Booklet/Design Review(3-6 copnecfi—) ............................................ S2o0 Group B Design Booldd/DesignReview(7-9 cottnectiems) ............................................. $300 Certificate of Inspection and histallation ofPubhe Water System Project ...................................WC . - Declaration of Covenant and Restrictive Cov t ..... ...............................................N/C Additional Information For additional information about public water systems,contact Carolyn Jensen R.S., Environmental Health Speoialist, Post Office Boa 1666,Shelton,WA 98584,(206)427-9670,FAX(206)427-7798. H,WDArs�awewrs.av W 123a8-av-000tv MASON COUNTY DEPARTMENT OF HEALTH SERVICES POST OFFICE BOX 1666 SHELTON, WA 98584 (206) 427-9670 APPLICATION FOR LAND USE EVALUATION FAX 42 7-7798 Receipt No: Date of Payment: INSTRUCTIONS 1. An application is considered canpl<te when the fee is paid and the foltowing elements have been addressed: • Parts 1 " 2 of the NPptication fore ant be completed. • One properly excavated backhoe pit per proposed parcel aest be ready for inspection. Properly excavated pits are 6 it deep with a 4 ft deep shelf on one and of the pit. The 4 it deep shelf oast slope up to the grand w face for easy ingress and egress. • A sated plot plan oust be attached-to the application. The scaled plat plan sent show the precise location of the test holes, dimensions of the property, and location of any existing or proposed wells, roads, or buildings within 100 ft of the property bovdaries. 2. After a completed application is received, staff will inspect the property and provide the applicant with a written report. IMPORTANT: IN OROE0. TO AVOID ADDITIONAL COSTS, BE SURE TEST MOLES AND PARCELS ARE ALL FLAGGED AND CLEARLY DELINEATED AS TO LOT AND TEST HOLE NUNBER. THE IDENTIFIED TEST HOLES NUST HATCH THE LOCATIONS SHOWN ON THE PROPOSED PUT MP. PART 1: APPLICANT/PARCEL IDENTIFICATION p, Large Lot Subdivision n Short Plat I- , Subdivision �-1 BLA (Office Review) U $100 + $10/parce2 I__I $85 U $400 + $20/lot u $20 NAME OF APPLICANT Ironhorse Crossing, LLC . TELEPHONE ( 360 1943-5650 • MAILING ADDRESS C/o Apex Enaineerine PLC 2601 So. 35th St. , Ste. 200 L>,cyma 09 .Me. 84 ASSESSOR'S PARCEL NUMBER 1 2 3 2 8 - 2 4 - 0 0 0 0 0 0 LEGAL PROPERTY DESCRIPTION See Site Plan, NW 1/4 Sec. 28 T 23N R 1W W M. LOT SIZES (ACRES OR SQ PT) 49�.9 , --rat-7— �3— _-�—� • DIRECTIONS FOR LOCATING SITE Heading tnorth on Stale Hwy. 3 from Belfair take a right on Ridg top Blvd. The property is due south of the intersection of State Hwv. 3 and the Northern Pacific Railroad, -- PART 2: INTENDED USE OF PARCEL INTENDED USE OF PROPERTY (Check One) : n Single family residence U Multi-family residence El Other, specify: WATER SOURCE FOR PARCELS (Check One) : u Individual wells IKJ Community well HAON-SITE\LNDUSE.W Revised 12/05/94 ' rand Use E�alvation PART 3: HEALTH DEPARTMENT REVIEW (OFFICIAL USE ONLY) SOIL LOGS AND SITE CfTARACIEEISTICS 1 LOT a _ I for a _ for a _ I for a 1 Test Pit A Test Pit A I Test Pit A I Test Pit A 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I Depth of root pen.: I Depth of root pen.: I Depth of root pen.: I Depth of root pen.: I 1 Depth of mottling: _ I Depth of mottling: _ I Depth of sottling: _ I Depth of mottling: 1 1 Depth to rest. layer: _ I Depth to rest. layer: _ I Depth to rest. layer: _ I Depth to tart. layer: _ 1 1 Solt type (USDA): _ I Solt type (USDA): I Soft type (OmA): _ I Sol( type (USDA): 1 1 Test Pit B I Test Pit B I Test Pit B I Test Pit B I I I I 1 I I I I 1 I I I I 1 I I I I I I I I I I 1 Depth of root pen.: I Depth of root pan.: I Depth of root pen.: I Depth of root pen.: 1 1. Depth of mott Lfrg: _ I Depth of mottting: _ I Depth of mottting: _ I Depth of mottling: _ 1 Depth to rest. layer: _ I Depth to rest. layer: _ I Depth to rest. layer: _ I Depth to teat. layer: soft type (USDA): _ I Soil type (USDA): _ I Soft type (USDA): _ I Soft type (USDA): Wain drain needed? _ I Curtafn drain needed? _ I Curtain drain needed? _ I Certain drain needed? jslope M: j slope Mi j slope M: _ j Slope (%): _ I 1 I I I 1 Shoreline? (T/N): _ I Shoreline? (YIN): _ I Shoreline? (Y/N): _ I Shoretire? (Y/N): _ 1 I I I I I Mini. tot si ze:A _ I Mini. tot cixe.a _ I Mini. tot of ze:A _ I Minimm lof cize:A _ 1 1 I I I a Mini mm lot size applies to new subdivisions and is defir as the minimun aLlwable lmtl area Per residence or reside, tiel eq ivat ent (450 sa Lt ons per day). COMPffiNTS x \ox-srrs\r.A'ouss.w seviaea a/os/5+ • LM Use Evaluation PART 4: REVIEW SUMMARY (COMMUNITY DEVELOPMENT USE) A d NHHTS H TH CODE After examining lot size, proposed water source, and soil type, it is the de- termination of Mason County Department of Health Services that each proposed parcel can support an on-site sewage disposal system meeting the requirements of state and local regulations. F� d DOES NOT NHHT HHALTH CODS After examining lot size, proposed water source, and soil type, it is the de- termination of Mason County Department of Health Services that each proposed parcel cannot support an on-site sewage disposal system meeting the require- ments of state and local regulations. This determination is based on consideration of the following factor(s) : A d HOLD APPROVAL UNTIL FURTHER ACTIONS ARE TAKEN BY APPLICANT After examining lot size, proposed water source, and soil type, it is the de- termination of Mason County Department of Health Services that each proposed parcel cannot support an on-site sewage disposal system meeting the require- ments of state and local regulations until the following conditions are met: r U Conditian(s) required prior to approval have been cet by the applicant. Health Official Date PART 5: REVIEWER SIGNATURE Health Official Date H aON-SIIEIW USE_. Revised 12/05/94 � /+»d Vae Eralve[iw LAND USE EVALUATION What is a land use evaluation? Land use evaluations are written determinations by the health department whether on-site sewage disposal systems for general categories of developmen- tal land use on specific parcels of land meet current requirements of state and local health regulations. Land use evaluations also identify factors that could limit the parcels- ability to accommodate on-site sewage disposal systems. why do people request land use evaluations? Property owners most frequently request land use evaluations as part of county requirements for subdividing their land. The county needs to know whether the parcels will be buildable before approving land divisions. Do land use evaluations guarantee parcell are buildable? No. Land use evaluations take into consideration the health codes and poli- cies in effect at the time of evaluation. These items periodically change. Land use evaluations are not considered legally binding for the health de- partment, though a moral commitment is recognized and evaluations are honored whenever possible. Do land use evaluations allow property owners to begin preparing parcels for building? No. During the land use evaluation, the health department usually has mini- mal information concerning building size, building placement, road placement, and well placement. These are critical design elements and might need to be altered in order to allow for approval of on-site sewage disposal systems. Excavation associated with site preparation could make it difficult to alter these design elements and could damage the only useable drainfield areas on the parcels. Caution, It is possible that building site preparations made prior to design of septic drainfield systems could render sites unsuitable for on-site sewage disposal. How can I obtain a guarantee that a parcel is buildable? Obtain an approved on-Site Sewage Disposal Permit. Permits specify septic drainfield designs and locations to serve the Sewage disposal needs of spe- cific developmental proposals. Permits are valid for three years from the date of approval. s:1Wl-sirs\LNDflss.w RevisM 12/05/94 MASON COUNTY DEPARTMENT OF HEALTH SERVICES HEALTH SERVIGE6 PO S.16" PERSONAL HEALTH 5hekon,WA 98584 303 N.FOURTH SMELTON (360) 427-967 Shelton,WA 95584 FAX (360) 427-779 ELMA (360) 482-526 SELFAIR (360) 275-"e May 24, 2001 SEATTLE (360) 464-W6, David Overton C/o Apex Engineering 2601 S. 35' Street, Suite 200 Tacoma,WA 98409 Re: Iroohorse Crossing,LLC Tax Parcel N 12328-24-00000 Dear Mr.Overton, Our department has reviewed your application for the 1234ot subdivision.The following information is needed for our review. In order to address density(ru mmam lot size)as required In WAC 246-272-20501,a Method H analysis must be completed. Because each lot will be served by an on-site septic system.a scaled plot identifying a PMonty and reserve septic system is required, The proposed subdivision is to be served by the Belfair water system.The Washington State Department of Health has jurisdiction over the water system and will need to determine if die water system is adequate to serve the subdivision. They have been notified regarding your proposal. Hyou have any questions regarding this matter please fee)free to contact me at(360)427-9670 ext.554. Sincerely, L_ . ice._ Pam Denton R.S. Environmental Health Specialist c. Michael MacSems,Mason County Planning OG S Onsite Consa/tino Services P.O.B 2==M..,WA 98="22! 20bi IU,2l2-21=4YY(MwINt,232i=741N(6.1 twslnlMaM! June 20, 2001 �? :_ u L' i_. Pam Denton IlIN? r1 �0�1 Mason County Department of Health Services P.O. Box Shelton, WA 9 A9 8584 HEALTH SERVICES Reference: Community Sewage Systems for the Plat of Ironhorse Crossing Dear Pam: I believe you had a recent discussion with Dennis Hanberg of Apex regarding the community sewage disposal systems in this plat. On behalf of Dennis, I am following up on that comment. The Plat of Ironhorse Crossing is in Belfair, essentially on the hill above the sewage system serving the McDonalds. You and I walked the site earlier this year, looking at some of the holes. I believe we concluded that, while soils were suitable for onsite sewage disposal systems, the soils were far superior in the northwestern portion of the parcel, somewhat along State Highway 3. That area was proposed as an open area. Further the lot sizes were such that the location of primary and reserve drainfields on each lot appeared difficult. The current proposal is for at least two phases. The first phase, development of several lots including multifamily residences, will utilize offsite (of each lot) community drainfields located in this more suitable northwestern area. The next phase, probably development of the remaining lots, will necessitate abandonment of the community sewage systems, and connection of all lots to the offsite Public Sewer System, which will, by that time, be available. Attached are two plat layouts. The first shows the lots proposed in the first phase to be connected to the community sewage disposal systems. The systems breakout as four community systems each with a capacity for nine -three-bedroom dwellings. Assuming 360 gallons per day per dwelling, the system has a capacity for,"gallons per day. Each residence would have their own septic tank, discharging into a common gravity collection line, which transmits the septic tank effluent to a common pump or siphon tank. This tank discharges into the drainfield system. As the more suitable soils were selected, an application rate of (actual 0.92) was used. Drainfield square footage, for each system, is 3,521 sq. ft. broken up into six beds each 68.75 by 8.5 feet (most likely chambers). The second attachment shows the drainfield systems for each of the four community sewage systems, color-coded with primary and 100 percent reserve areas. This translates to a total of 36 single family residences for this phase. Page 1 of 2 Z t � tii VA g0'1t- 38`10 - , 7soo There is one other community system designed to serve four multifamily fourplexes. Each fourplex will have four two-bedroom residential units. With a design flow of 240 gallons per F12 day per two-bedroom unit, and four units per fourplex, and four fourplexes, there are a total of two-bedroom units or an anticipated sewage flow of 80 gallons per day. Each fourplex unit would probably have two one-compartment septic tank 'n series). Septic tank effluent would discharge into a common gravity collection line which, in turn, discharges into a pump j or siphon tank. The drainfield would consist of a series of beds. I used a lower application ,_,W° rate (0.82) so the number and size configuration of the beds would match the other four units. Again the attached plan shows this system (labeled "E") primary and reserve drainfields, color-coded to the plan. You and I looked at several of the soil log holes in the community drainfield area. My mapping of them follows on the next page. I believe the high loading rate is appropriate. Again Pam, this is a conceptual layout. I believe the contours are accurate (the storm line shown on the plan will be changed) and the holes are located fairly closely to their real location. However, I expect things to change during actual design. The beds are spaced five feet apart, with reserve beds between primary beds. That could change. Also which lots are connected to which system may change during the design phase. The intents of these drawings were only to show one possible layout and that the drainfields could all fit within the intended area. I believe they do. Please look the proposal over. If you have any comments, want to revisit the site, have any suggestions or recommendations, please let me know. I'm sure more fees are needed, if you let me know how much I will contact Dennis for them. Thanks Pam. Sincerely, Stephen C. Wacker R.S. Attachments Page 2 of 2 Soil Lod Notes examined 12(7/00 A) 0-10" Dark Brown Gravelly Sandy-loam 10-17" Gray Gravelly Loamy Sand 17-23" Brown Gravelly Loamy-sand faint mottling roots 23-56" Gray Gravelly Sand mottled slightly compact 56" Weathered Till B) 03" Dark Brown Gravelly Sandy-loam 6-18" Brown Gravelly Loamy-sand 1849" Gravelly Sand 49-62" Weathered Till Mottled at 42" C) 04" Dark Broom Gravelly Sandy-loam 4-20" Brown Gravelly Loamy-sand 2047" Gravelly sand 47-56" Weathered Till, Mottled D) 0-24" Broom Gravelly Sandy-loam 24-38" Tan Gravelly Loamy-sand 38-70+"Gravelly Sand E) 0-5" Dark Brown Gravelly Sandy-loam 5-23" Brown Gravelly Loamy-sand 23�63+"Gravelly Sand Soil Log Notes examined 7/27/99 1) 0-22" Brown Gravelly Loamy-Sand 2240" Gray Brown Gravelly Loamy medium Sand 40-60" Gray Gravelly Medium Sand 2) 0-28" Brown Gravelly Loamy-Sand 2838" Gravelly Loamy-Sand 21) 0-15" Brown Gravelly Loamy-Sand 15-34" Gray Gravely medium Sand 22) 0-18" Fill -- 1633" Brown Gravelly LoamySard 3349" Gravelly Medium Sand 23) 0-26" Brown Gravelly Loamy-Sand 26-53" Brown Gravelly medium Sand 53-63" Gray gravelly medium Sand 24) 0-33" Brawn Gravelly Loamy Sand 33-3T' Compact gravelly fine Sand 82) 0-20" Brown Gravely Loamy-Sand 2038" Gravelly medium Sand A b i - '� � ro o . `maon p CO � why o $ d n � a 4G + N V c � 77 OC S Onsite Consulting Services_ P.O.8o 220 w....,wn 9839w229 22sse7a18e,25MI2 u29(Mokno6 252ae7-319e O.ul .w.ekwl. ..M August 13, 2001 Pam Denton ��j1r^` Mason County Department of Health Services L5 Ni L�,i P.O. Box 1666 Shelton, WA 98584 Al1G 14 20111 Reference: Method II — Ironhorse Crossing HEALTH SERVICES Dear Pam: Based, in part on your messages, and a discussion with Dennis Hanberg, attached is my Method II Determination for the proposed Plat of Ironhorse Crossing. I believe I have covered the items listed in the state regulations. 1 haven't included a mapping of the soil log holes, or my soil log notes. I figured you still had the previous copy. If not, or you want another, please let me know. If there is something missing, something of concern, or revisions needed, please let me know. I can be reached at 253-312-4409. Sincerely, Stephen C. Wacker R.S. L.D. Attachment