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HomeMy WebLinkAbout87-016~,. . 4;.~ 4 i ~O~ i .~. ^ .k ; y y~ ~ • ~~ ~4 ~ ~ , - - --- -- :~: ~~ ~ ~: BOARD OF SUPERVISORS ~~',~,,,r *' COUNTY OF BUTTE, STATE OF CALIFORNIA ~~ Resolution No. 87_16 RESOLUTION ADOPTING IMPROVEMENT STANDARDS FOR SUBDIVISION, PARCEL MAPS AND SITE IMPROVEMENTS PURSUANT TO CHAPTER 20 OF THE BUTTE COUNTY CODE. WHEREAS, under the provisions of Chapter 20 of the Butte County Code, standards governing water supply, sanitation, road construction, fire standards, fee schedules, and other specific requirements are to be established by resolution by the Board of Supervisors. WHEREAS, the Board of Supervisors has adopted Resolution No. 82- 68, April 27, 1982, which established improvement standards; and WHEREAS, the Butte County Planning Commission determined that conditions in the County had changed sufficiently to warrant a review of the improvement standards; and WHEREAS, the Planning Commission has recommended amendments to Section 12 Water Supply, Appendix VII Sewage Disposal, and Appendix 1T Road Standards, Fire Standards as shown on Exhibits 1, 2, 3, and 4 attached hereto; and WHEREAS, the proposed amendments have been studied and reviewed by the Butte County Board of Supervisors and a public hearing held pursuant to law at which time all interested persons were heard; and WHEREAS, the Board of Supervisors finds the amendments will promote the general health, welfare and safety of Butte County residents; and WHEREAS, bringing water supply requirements for parcel maps and subdivisions into conformity acknowledges that there is a minimum water requirement for household use which is not dependent upon the number of lots created at any one time; and WHEREAS, the improved sanitation standards will protect groundwater quality by increasing separation distances between groundwater and septic tanks-leachfields, and eliminating seepage pits; and WHEREAS, the proposed road standards will improve access by the public and emergency vehicles through expanded road widths, increased road base requirements and surfacing; and WHEREAS, the proposed road standards tie construction criterion to land use density as required by the Circulation and Land Use Elements of the Butte County General Plan; and WHEREAS, a plan check and construction inspection is critical to insure that road standards are implemented; and WHEREAS, by requiring water storage or payment into a water tender fund, CDF/Butte County Fire will be better equipped to protect County residents and property from fire; and WHEREAS, the Board of Supervisors on January 20, 1987 approved the improvement standards, identified as Exhibit 1, 2, 3, and 4 attached hereto; and NOW, THEREFORE, BE IT RESOLVED, Section 12 and Appendix VII are repealed in their entirety. BE IT FURTHER RESOLVED, Appendix II standards RS-7, RS-7A, RS-8- LD, RS-9-LD, RS-10, SRS-1 and Resolutions 82-173, 83-76, and 84-143 are repealed in their entirety. BE IT FURTHER RESOLVED, Sections 13.01-1 and 13.02 are repealed in their entirety. BE IT FURTHER RESOLVED, the improvement standards for subdivisions, parcel maps, and site improvements as set forth in Exhibits 1, 2, 3, and 4, attached hereto, are adopted. BE IT FURTHER RESOLVED, a plan check and construction inspection including, but not limited to alignment, grade, profile, drainage, etc., will be required for new private roads serving lots less than 5 acres. BE IT FURTHER RESOLVED, that plan check and construction inspection will be subject to a fee payable to Butte County in accordance with the fee schedule adopted by Resolution 85-127 as amended from time to time. BE IT FURTHER RESOLVED, the proposed xoad standards apply to road construction on-site. From the project site to the nearest publicly maintained road, the next lesser standard will apply. The minimum standard is RS-8-LD I, 20 ft. road width as shown on Exhibit 3. BE IT FURTHER RESOLVED, that the °Improvement standards for -2- subdivisions; parcel maps, and site improvements pursuant to Chapter 20 of the Butte County Code" be endorsed to show the above amendments have been approved by this Board. PASSED AND ADOPTED by the Board of Supervisors of the County of Butte, State of California, this 3rd day of February, 1987, by the following vote: AYES: Supervisors Fulton, McInturf, Vercruse and Chair Dolan NOES: Supervisor McLaughlin ABSENT: None NOT VOTING: None /1 ~ f1 Buttey~ountyvBoard of Supervisors ATTEST: MARTIN J. NTCHOLS, Chief Admi trati Officer and Clerk of the Board BY ~ ~iIL/_ Lr.!Y P r ~~ -3- EXHIBIT 1 IMPROVEMENT STANDARDS (Revised January 20, 1987) 12.00 WATER SUPPLY: 12.01 Subdivision: {five or more lots, planned development lots or condominium units) 12.01-1 The subdivider shall state in a letter accompanying the tentative map the proposed method of water supply for subdivisions. Individual wells shall not be acceptablE as a method of water supply for any subdivision in excess of ten {10) lots located within 700 feet of an existing public water system whose service area includes or can include the subdivision. 12.412 The distribution system for any community water system developed to serve a subdivision within an urban area and within 1,000 feet of an existing public water system shall be designed and installed according to good engineering practice and to standards not less than those of the existing water system and the California State Safe Drinking Water Act, 12.01-3 Where the water supply is proposed by the extension of service from an existing water system, the subdivider shall, prior to the filing of the final map, furnish the Health Department a statement from the water purveyor stating that the purveyor is willing and able to supply water to the subdivision, along with any conditions or prerequisites the water purveyor may have, 12.01-4 Should the subdivider propose individual wells, at least one test well for each twenty acres shall be developed by the subdivider and tested for quality and quantity. Where topography, geological conditions, or little information from existing wells is available, additional test wells may be required by the Health Department, A test well may be required on each and every ~.ot. Test wells shall be pumped in a manner satisfactory to the Health Department and shall produce a minimum of five {5) gallons per minute if tested during the period from January 1 through June 30 or a minimum of three {3) gallons per minute if tested during the period from July 1 through December 31. The provisions may be waived by the Health Officer if sufficient well information has been developed in the area to assure adequate potable water. A statement to the Health Department by a licensed well driller and a report by a recognized engineering geologist or hydrologist may be required in this case. - 2 - The Health Department may require confirmatory wells. Neither a waiver of the requirements, the acceptance of data or statement submitted nor the approval of the map by the County of Butte in reliance upon such waiver, data or statements shall be, nor be construed to be, a guarantee by the County of Butte that suitable domestic water in sufficient quantity is available to the parcels created by the subdivision. 12.01-5 Should the subdivider propose to develop a water system for the subdivision, he shall: {1) Provide a legal entity adequate to construct, maintain, and operate the system. {2) Submit complete plans and specifications including design criteria prepared by a registered civil engineer to the Health Department and the Department of Public Works for approval. Wells shall be designed and installed as per Appendix VI. of this resolution and Chapter 23B, Code of Butte County. All water systems with surface sources shall be provided with treatment satisfactory to the Department of Public Health in accordance with the California State Safe Drinking Water Act, (3} Where a spring is to be used for the water supply system, a registered water geologist or engineer shall state the yield in gallons per minute during the dry season. The Health Department may require a spring to be treated as a surface source. (4} Provide minimum source capacity and storage as required by Appendix VI of this resolution and the California State Safe Drinking Water Act. (5) Provide safe, potable water meeting the chemical and bacteriological standards of the California State Safe Drinking Water Act. No surface water shall be considered potable without adequate disinfection, filtration and additional treatment as may be required. (b} Provide all information required by the California State Safe Drinking Water Act, Health and Safety Code, Section 4010-4439.5 of the State of California. 12.41-6 Existing wells which are to be abandoned in a subdivision shall be destroyed under permit in accordance with Chapter 23B, Code of Butte County. - 3 - 12.02 Subdivisions (Four or less lots, planned development lots or condominium units) 12.42-1 Where the average resulting parcel size is forty {44} acres or more, no information on the availability of domestic water is required. 12.02-2 Where anY resulting Parcel is less than forty (40} acres, or less than a quarter-quarter section, but not less than twenty {20} acres, a division shall be approved only if one of the following requirements is met: (1} The developer shows that water in sufficient quantity and acceptable far domestic purposes is available. Tests may be required by the County Health Department to determine the suitability of water for domestic purposes. The availability of water shall be shown by one of the following methods: {a} By drilling at least one well within the division at a location approved by the County Health Department which will produce a flow of not less than five (5} gallons per minute if tested during the period from January 1 through June 30 or not less than three (3} gallons per minute if tested during the period from July 1 through December 31. The well log and/or an approved pump test certifying to the flaws shall be reviewed by the County Health Department before filing of the final map. {b} By providing evidence from a registered engineer or geologist that a spring exists on each such proposed parcel that will produce the quantities specified in subsection (1} above. Such statement shall be submitted to the County Health Department prior to filing of the final map. {c} Where the water supply to the parcels created by the division is proposed to be furnished by the extension of service from an existing water system, by furnishing a statement from the water purveyor stating that the purveyor is willing and able to provide water to the land division. Such statement shall be submitted to the County Health Department prior to filing of the final map. The requirements of subsections {a} and {b} above may be waived by the County Health Officer in cases where past experience has shown that potable water is available in the area of the proposed land division. - 4 - Neither the waiver of the requirements of subsections {a) and {b~, the acceptance of data or statements submitted pursuant to subsections {a), {b) or {c) nor the approval of the map by the County of Butte shall be. nor be construed to be, a guarantee that suitable domestic water in sufficient quantity is available to the parcels created by the land division, {2) A note is placed an the final map as follows: "WATER: There is no evidence that domestic water is available." Where any resulting parcel is less than twenty {20) acres and an individual water supply is proposed, the division shall. not be approved unless the developer shows that water in sufficient quantity and acceptable far domestic purposes is available in accordance with Section 12.02-2 {1) above. EXHIBIT 2 APPENDIX VIT {Revised January 20. 1987) MINIMUM USABLE LOT AREAS FOR SUBDIVISION AND LAND DIVISIONS WHERE INDIVIDUAL, SEWAGE DISPOSAL SYSTEMS ARE TO BE USED: MINIMUM SEPARATION DISTANCES A. The requirements below for sewage disposal are applicable to subdivisions and land divisions where septic tanks and leachfields are proposed. The required minimum areas shall be computed proportionally based upon sewage flows expected from the land division or subdivision in question, using the Table I value as 350 gallons of waste water per day per area requirement. 1. For subdivisions of AGRICULTURAL LAND for continued AGRICULTURAL PURPOSES only, no required minimum areas far sewage disposal shall be necessary. No development requiring an individual sewage disposal system shall be permitted on any such agricultural parcel unless the requirements of A are met. A statement reserved in division are "Agricultura cultivation livestock on No. 82-173} shall be deeds for not approv 3. Purposes" of food or parcels of placed on any required map and each lot that "lots within this ed for sewage disposal." as used in this section means the fiber or grazing or pasturing of 20 acres or larger. {Resolut.ian B. Usable lot area shall mean that area of the lot usable for installation of an individual sewage disposal system. Usable lot area shall not include areas contained in the following: 1. Building setbacks required by County Ordinance or the Butte County Code unless approved by the Health Department and Department of Public Works. 2. Easements dedicated or reserved for surface or underground improvements unless dedicated or reserved for sewacte disposal purposes on the approved and recorded map. 3. Easements for access or roadway purposes. 4. Areas occupied by structures and within five (5} feet of existing structures or to be occupied by structures. For purposes of single-family residential lots on which there - 2 - are no existing structures, this area shall be deemed to be 2,50p square feet. 5. Areas within five (5) feet of the property Line. 5. Areas which do not comply with the minimum separation distances shown in Table IT below. 7. Paved areas or areas proposed to be paved, where the percolation rate exceeds 30 min/in. 8. Areas with a slope in excess of 30~ 9. Areas where the percolation value is in excess of 120 min/in. 10. Areas with less than two {2) feet of soil above an impervious stratum.. 11. Areas with less then five {5) feet of sail above seasonal high groundwater level. C. Each lot in a subdivision or land division shall provide the minimum area for sewage disposal found in Table I attached. Areas shown in Table I up to and including 2.0 acres are minimum usable areas for sewage disposal as defined in B above. Areas in Table I in excess of two (2} acres are minimum gross parcel sizes provided, however, that such gross parcels shall contain not less than two (2} acres of usable area as defined in B above. D. Seepage pits shall not be utilized on any Iot created after January 20, 1987. E. Required usable sewage disposal area for these smaller lots created in accordance with TV F (3) of the Nitrate Action Plan for the Greater Chico Urban Area may be located on adjacent land by easement acceptable to the Health Department, provided: 1. The easement is within the land area proposed for division and overlays a duly approved subdivision designed for community sewers. 2. A note shall be placed on the map that the easement encumbered lots shall not be buildable lots until such time as sewers have been made available and the easements terminated. {Amended Per Resolution $5-x13} W 1 b n C w r~ c ro 0 }.a N to E3 N i"t' G m rn Tn 1V ft N ~~ N ~t O r~ N 'i h O "C N w a' t N O ~ o~ 0 00 F-~ F-a ~ ~ N h+ ~ ~ I N ~ IJ IO N O 00 C3~ .~ N ~--' 0000000 V lJ't ~ N N F-+ h~+ N N N N O 00 ~ oaaoo0o 0000000 0000000 0o a~ ul .~ ~ w w N N N N O OD O~ O O O O O O Q oao0ono 0000000 N Q V d~ CJt lJ7 ~ ~ N N N O 00 ~ n O Q O 0 0 0 ~'i O 0 0 0 0 0 mooooo0 m N N N V N O V V V Q~ v~ulw cnw~to n C11 Ul In i.n ~ rnrnrn~ ~ ~ m o000 ~~~wwWw O ~I ~l Cfl lJE V N . C!t ln: . V1 U1 ~ ~n ~i m ~ f~ m ~ d to o ro O O O ~ ~~ Y OOO~.~Nt-+ E--~r~r~~YrJO N~-`00~~N~ ooaoooo Vl In Vl Ut W rr-~ ~O 0oo00ao aoa0ooo 0000000 VCl~.~WWNN N N N N O 00 O~ 0000000 0000000 0oooooa b0~C11~W W W 000 QflOd~.L~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 oaoooo0 N V O~ Ul lJS lJl ~ • c.n ul In W ~ ~ 1N,loaoooo 000000 ~ o00000 W W N N N N N 111 p V CJ1 Ul Ul [fi 1.11 to rn ~° v, u, ~ u, ~~~~~~tin n n n n n n n n n ~ ~ n n ~ m u~i vi ran u~i [ten u~a ~-+ r-t O 00 O GO ~ :L`+ N r-~ ~ ~ ~ r!-+ ~+ t-+ O ~~ooa.~N~ 00000000 CJl W N N ~--~ V V V NOO~o~ 0000000 0000000 0000000 ~ .~ W N N F-~+ I-+ NNNNOOOd1 0000000 ao0ooo0 0000000 ~-~WNNNN V V V VlnWw-+ O O Q O O Q Q 0 0 0 0 0 0 0 0000000 V l11 ~ W W W W VII V Vllewr-' 0000000 0000000 oaoaaoo NNN ~ ~ V V V NQN0000~ Ul Vl w wcaww n .~~~~ no0o0 ~~°~ ~~~~~~~ n n ~ n n n n m m cn m m r~ ro ~ ~ ~ N ~ ~ ~ ~~ ~n ~~ y Y~C 9 yN t O ~ O~ bd y I u'+ bd y u, ~~ w w ~~ N a ro 0 ~ p 0 ~„~ w r ~ ~ ~ ~ ~ , h+ O ~ o ~ ~ ~ ~ V o ~ y w ~ ~ ~ a ~ y y rti I-i J C!s ~ 55d A ~ ~ m T- ~ r ~ i 9 ~ `~ ~'! `° o w ~ ~ ~ ,a u ~ ry. e r~ v C NOTES: a. An impervious stratum or layer is a bed or tense of fine grained soil, rock, cemented material, or similar soil structure which retards the downward movement of water. A stratum, which has a percolation value in excess of 12D minutes per inch and/or in which six (61 inches of water will not seep completely away in a 12-hour period, shall be deemed to be impervious. b. Areas with less than two (21 feet of soil above an impervious stratum or less than five (5? feet of sail above the seasonal high groundwater level, slopes in excess of 30~s, ar percolation values in excess of 120 min/inch are deemed unsuitable for septic tank systems. c. In addition to the requirements of these standards, sewage disposal areas must be of such a configuration that it is practicable to use them as disposal areas based upon standard practices for the installation of septic tank systems. TABLE II MINIMUM SEPARATION DISTANCES IN LINEAL FEET r~.cili_~ S-T or Sewer Line Leaching Field Seepage Pit a, Individual Domestic [•rell 50' 1D0' 150' b. Public Domestic k;e~.~. x.00' 100' 150' c. Perennial Stream or 100' from high 1D0' from higr Spring 5D' water line water line d. Drainage Course or 5D' from edge 50' from edge Ephemeral Stream 25' of channel of channel ~. Cut or Fill Bank 10' 4' X vertical 9' X vertical height height 1.. Tsake or Reservoir 50 ` 200' from high 200' from high water line water Line g . Toot Li.n.es where In- dividual WeJ.ls Used* 25' S0' 75' * NOTE: This requirement, shall not apply where location of wells on each lot is specified on the final map and recruired usable area far each lot is 100' from and we17_ location. EXHIBIT 3 IF LOTS BEING CREATED ARE 5 ACRES 4R LARGER= I. 15% Maximum Grade. 2. Developers !`ngineer shall certify that adequate drainage facilities have been provided. 3. The following note shall be placed on the final subdivision maps The roads in this Subdivision were not designed or cons;ruc#ed to comply with standards for rands to be accepted by the County for Maintenance. I F LOTS BE 1 NG CREATED ARE LESS THAN 5 ACRES= f. 15 % Maximum Grade. 2. Construction plans, showing horizontal and vertical alignment, drainage structures with supporting calculations. are required. 3. Construct inn inspection is required . 4. The following note shall be placed on the final subdivision maps The roads in this Subdivision were not designed or constructed to camp.ly with standards far roads to be accepted by the County for Maintenance. CQUNTY OF BUTTE DEPARTMENT: OF PuBLIG ViIORKS TYPICAL sECTioN ~oR STANDARD N0. RS _ 7 MOUNTAIN RECREATION SUB. PRIVATE ROAD IMPROVEMENT SCALE= NONE DATE : I-23-87 i r ~ t F LOTS BEl [VG CREATED ARE 5 ACRES OR LARGER I. 15% Moximum Grade. 2. Developers Engineer shall certify that adequate drainage facilities have been provided. 3. The following note shot! be placed on the final subdivision maps The roads in this Subdivision were not desiflned or car~5rructed to comply with standards for roads to be accepted by the County for Maintenance. COUNTY OF BUTTE ®EPART~AENT ®F PUBLIC WORKS TYPiCAIw SECTION FOR STANDARD N0. RS-?A RURAL SUBDIVISION PRIVATE ROAD IMPROVEMENT >~CALE= NONE DATES I-23-87 20` ~~ 4' I 0 ` 10' 4' ~- -2 % - 2 % ~~- I = 40 Acres or larger f~oad Base where required ~S~ Pit run not permitted RS-B- LD T 2 0' ~~ ~ -2% E -2%~'` 4" C I. TL Agg. Base ~ S: - 20 Acres to less than- 40 Acres-4or fewer parcels 20 Acres to Tess than 40 Acres- More than 4 parcels add single' sealcoat RS-S--EDIT ~ 20' 5 ` l0' 10' S' ~ Single ~i ~ Sealcaat j-- - 2 % - 2 %-~. 4" CI.II Agg. Base ~ S:~ 5 Acres to less than 20 Acres-4 or fewer parcels RS-8-LD 2iC NOTES NOT COUNTY STANDARD FOR MAINTENANCE COUNTY OF BUTTE DEPARTMENT OF PUBLlC WORKS TYPICAL SEC'i'i4NS FOR sH>=~~r 1 0~2 RS°S- LD NON•URBAN AREA LAND DIVtSiONS scA-.~= r~or~l~ E 5 ` 12 ` 12' g' Double Sealcaat, f ~. .~ 4`~ C I. 7I Agg. base 2 Acres to lessCtha}^n( 5 Acres -4 or fewer parcels RS'"' V-LD ~ 26` , 5`_'_, 13~ ~ i _ ~ 13` ~ 5` ~. Daub4e ~ Sealcoot i ~ ~~ 6 Cf. I1 Agg. Base Less- fihan 2 Acres - 4 or fewer parcels RS-g-LD ~` NOTE= NOT C0i1NTY STANDARD FOR MA l NTENANCE CQUNTY OF BUTTE ~ DEPARTMENT DF PUBLIC IdV~RKS TYPICAL SECT IONS FOR SHEET 2 ®F ~ RS"e'L® NON-URBAN AREA LAND DtVISI0N5 SCALE= NONE ®ATE 4-23-8T i , ~ Over One. Acre- 4 or fewer parcels 26' 5` l3` l` l3` S' ~~ N•P ar l ~/Zy`6TyP• ~ ~eolc9nt H.P. ~-- -2% ' -2%-+ •~'' ~ 6"Clnsa Agq.Baae NOTE: Ivot County standard For maintenance.. A. Provide traversable access. 13 Provide maintenance agreement. :; II. OA'1's ACRE AISD 5M,AI.LEA PARCELS ats' Far_F Te FecF 36~ 2.6` --~ r TACAL ACCESS ROAD Structural, Standards Be1oa 40` PACE 3 2' r z.e T1=4.Q 2.5' .._. ~ 2.5` 1`LCivOR ROAD T I = 3.5 CUL°DE-SAC ROAD ' Structural Standard. Subgrade 95% Compaction. 4" Class z A,B, 3/Ic" ,3a~, F'og Seal ~?[inimu« Graded. Pi:.chEs ti:Y:t?: 'i'a.^-.5~ ::~a:uarc:3 :haii bi}~ tli.n;.:;um C./i~~ Sdidttt. arrl,7r to ri,:a rand fro:: irain^ NOTE' Prime A. B. Prior to Paving. tr.?rnd Courft.y rnnd throaigh Is?r.ce1 beiyt ci~.vi.dad or os Requlrad by the 6e pt. of P. w. ,Subject: to ragineering anal}•sir. i. T~PJC~~L S~CTEO(VS FOFt REy 8-z/-84 Res 84- /43 ~ ~ f i a D~~'~lt~; ~`~:~~~T OF pU6LfC V~JC~RK~ ,,,,~..,,.,~ ..,~,y,..,., 5 ~Af~D~RD NG. RS ~ ~-~.~ scn~.~ n~oyt .~ REVISED 4/26/77 EXHIBIT 4 FIRE 13.0 1 1 Requirement Class 1 A pressurized water supply for fire protection wi11 not be required. However, 2,500 gallons of water must be provided for each parcel created, The specific location of the fire department connection (built to 5-29 standards) wi11 be determined by the fire department, in consultation with the developer. Tn lieu of bearing the cost of installing a static water supply system, the developer may pay into the fire department WATER TENDER FCFND. The amount paid is based on the number of parcels created. Section 13.02 Timing and Financial Responsibility These requirements must be met prior to construction of any building on the created parcels. The condition need not be met prior to the filing of the final map. If this is the case, the developer must show proof of a performance hand or other financial arrangement to cover the cost of these requirements.