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HomeMy WebLinkAbout90-11 REZONE PLANNING 3 OF 10i SrAfS OF CALIFQRNIA —^— _ GEORGE bEUKMEJIAN Oo��rnot CALIFO L VARNIA NAL WATER 'QUALITY CONTROL BOARD--- _G HASiA CASCADE'NA7EHSNEQ eRANGH OFFICE: 15 KN©LLCRE,S7 DR1' +" EDOWG, CA 96002 HgD1E. (016) 224•190 17 April 1990 Butte County Board of Supervisors Administration.Center 25 County Center Drive 'Oroville,, CA 95965 LAND DEVELOPMENT DIRECTLY NORTH OF THE CH_ICO URBAN AREA Reional Board staff has recently become aware that County Service Area 87 (CSA 87T.which includes a large portion of land just (forth of the Chico Urban area bounr{a,ry (Bounded on the West by highway 99, on the East',by Chico Airport, and on the North by Rock Creek), is under intense scrutiny for development. We also understand that under the current zoning; this area could be developed w'i'th as many as 1300 homes, all to be sevved by septic/tank leathfield systems. Portions'- Of this land have relatively poor soils and may be subject to sensorial` high groundwater. It is ,unlikely that this area will be sewered for many yearsi if ever, as it is not currently in the city of ChIco's Sewer Service Area Boundary; Current butte County development standards call for a minimum of five feet of useable soil depth below grade for a septic tarkjleachfield systam (or a minimum Of 2 feet of soil above an impervious layer). Because leachlihes are generally buried two to three feet below grade, this standard may result in wastewater p _ y ,than three ee f etof unsaturated soil., Present guidelines ercolatin through 1 of the Central Valle, Quality . , l Board call for a minimum Of 5' or useableetc than tail below the leach lines and above any 'Saturated zone. Board staff have not objected to individual Systems and small developments within Butte County that do not meet the five feet soil aui'delin6, primarily because` ire have felt that groundwater has been adequately protected for these specific of low density, TheseIr add tionme the �currentiCountyeordo been primarily rural and p nance<, adopted in January 1987 has a, significant improvement over the former ordinance..e. me ordnance We are concerned that the Curren ,may result in impacts t and surface water from develoo groundwater p nt in'the C$A 87 area. The Chico Urban Area is growing rap7d1y1 and "areas in the vicinity of the subject acreage already suffer from degraded groundwater quality; To avoid 'water quality and public health' prgbleattion.e Fo 11 winr,st tare someL at psuggestionsb ken for prevents potential degradation, p groundwater , appropriate measures that could be taken to prevent such degradation:, 1) Alteration of <the county Ordinance 1301edls ` guideline of a minimum of 5' Of uP1y with the RerJional g sable unsaturated soil beneath the leachfield above an impermeable layer be groundwater. CHRON'' -r' r � , ..INTER -DEPARTMENTAL MEMORANDUM Tp; Land Development, Public Works FROM: Tom Reid, Acting Director of Environmental Health SU8,7ECT E.H• Ochine.ro Plann_dDVelomeRooreNorth of epnt71zj058, St4more Dr ve, Are- 7-55-046 & 047 DATE_ October 41 1990 The r"o;llowing conditions of approval are rtacomm0hded for the Ochiner'o Rezone and Subdivision Map: I. provide community sewage collection, treatment and dt5pos6l State Regional facilities in compliance with California. Hoards Code of Butte E;ounty3 Water Quality Control Galifornia Health acid SafetyCode., and, other applicable and regulations governing thedesign, construction and operation of the facilities: 2,- comply with Water Quality Control Board, California Water Butte County Coco" California Code of Regulations and losqu.to Abatement District requirements for the usage of reclaimed Wastewater: 3. Provide a doiimunity water supply 'system .in compliance with the California State Safe Drinking Water Act. 4i provide a legal (government)entity adequate to insure the to11ectiOni operation;, maintenance or repair of the sewage treatment and dispotal favilities, snlf cc: Sierra .:est Surveying II �MW SVT . l ` 1: A community water system; with fire hydrants, capable of delivering 1000 G.P.M. in the residential. areas and 200;0 G.P.M. for any commercial. developments will be required. G.P.M. requirements can be reduced by using building sprinklers and fire walls. 2. This is in a high fare-, hazard area and non -comb roof covering will. be required. Class"C".ustibl.e q. 3_ This development and others in the area are impacting an already under- staffed fire department. The fire station that serves this development is located. on Highway 99 one-half mile ,north of Wilson 'Landing Road. The fire station is staffed with only one paid career person in the winter and two in the summer. The fire engine is seventeen years.o1d which is well, beyond it's replacement criteria. 4. Access to this development and others on Hicks Lane needs to be improved 11 for fire apparatus. Travel. time for the first -in fire engine is excessive because there is no direct route from highway 99 east across Garner Lane fi to Hicks Lane. It would be desirable to have an east -west access .road north of this devel,opnent that tied into Highway 99 near the fire station. 5. Access thro%i rh private security gates is fast becoming a proble�a for emergency services personnel and equipment (fire,, sheriff, ambulance, PG&E); A universal access system for emergency personnel is needed countywide,. 6. Street Widths and turnarounds shoUla be consistent with Butte County Publie Works standards for public' roads. 7. The devel.oper should supply and install Sir Nigh contrasting house numbers which can be easily seen from the street. j, M1 Hutto �" v�.'r r�►�t� JAN 0 10 BUTTE COUNTY SUBDIVISION COMMITTEE MINTUES SEPTEMBER 26, 1990 , PAGE 4 Mr- Edell said he thought that this project should be brought back again before this committee with a copy of the conditions from.all the three departments available to read. There was discussion of the trees to be planted on the project. Mr. Edell said that the Board adopted ow on this project. Would those fees be part of ethe hrezone? ich 'tlfhso that should be in eluded on the list of planning conditions: Mr- Wrinkle said that he had stumbled into a Board meeting and learned that this project will be paying drainage fees for this project even though the g property is not ,going to have drainage flow leave the property. Mr. Edell said that Mr Wrinkle has a rough draft of the 1984 conditions from Public Works. Those will be revised and written up with a letter.' On condition .'-,'6, a Ib'll istreet section will be required instead of 1/2 sectin. required." 0n condition fil u1 sreet rrent�taxeso��d1tion 47 is deleted. Cond�t�onthe7 w�'11. also have, cost of or cu improvement$ on Hicks .Lane will be about the cost' of the road fees and the project wall, get credit for off site construction. , pp hts of waywould have to be acquired, Thea applicant wondered if ri Mr. Edell said he dial not know at this time. Condition #22 was for left turn lanes at subdivision entrances. Condition r23 is for traffic safety signs. Condition '24 will ;require a turnaround area at the gated entrances off of Hicks Larre,- There will also be a condl",ion to construct interior streets to the standard shown on the map., R value tests could be submi-ted also for that condition, Mr. Edell said that road and drainage fees wixl be on this project' but Planning may not have then; immediately available: This item was continued for 2 weeks, tentatively or4 earlier of necessary. MEETYNGJOURNED D A MINUT28 TRANSCRIBED BY 'D, SHM BUTTE COUNTY SUBDIVISION COMMITEE MINUTES SPECIAL METING OCTOBER 1'1990 PRESENT: JOHN MENDONSA, PAULA LEASURE, TOM REID ALSO PRESENT: TOM WRINKLE, DIANA SHUEY . A. TENTATIVE SUBDIVISION FOR REVIEW; 1• E. H. Ochinero, Planned Unit. Development, .AP 07—O1—S`7 ' & 58, 07-55-46 & 47, 199 lots plus common arca located on the- west Way. of Hicks Lane approxi 1,500 fti north of area. Engineer: Sierra West Surveying Tom Wrinkle was present. He said the='Public Works conditions are okay; Mr. Reid said he does not have, the map with the revisions yet. g and drains e. conditions regarding road a;Yure said there would be two additional con Mr. Wrinkle objected to the Plan iug Dept., condition for Planning Depti approval of a landscapingp,;a prior to tentative map approval. 'Mr: Reid said that the projeat would need a permit -from the State for a clubhouse: It was agreed that condition 411.1 from the Planning Dept, would be discussed further b the engineer gineer and the Planning Dept;. This item was to be scheduled for hearing Planning Commission by the Planning Dept at a later date for the recommends the The committee following conditions: Public Works' cbnditions 1* Submit road and drainage plans to the be partinent of PtiibliC Works for approval and install: the required facilities. Provide 20 ft: radius property ;line returns at all street intersections. 3. Indicate a 50 f ,° building setback line from the centerline of Hicks Lane and all interior streets 4. Street sighs shall be provided by the developer at all street intersections per County requirements, (Submit 5 alternate names for each street to the County address Coordinator fox approvai of street names.') BUTTE COUNTY SUBDIVISION COMITTEE MINUTES PAGE 2 OCTOBER1, 1990 5. Deed 30 fti from the centerline of Ricks Lane to the County of Butte: b. Construct full street section on Hicks Lane to RS. -3A geometric 5 standard. �Jinlwum structur?,l section to be 2" AC and 8 AB, SC 250 prime; fog seal, ,and 95:a relative compaction. Submit design to County Department of Public Works for approval, R value determinations and other data may be required to support section design. 7. Provide monumentation as required by the Department of! Public ' Works in accordance with accepted standard;;; { 8. S,,:eet grades and other features shall comply with the 'Butte 1 County Ordinances, design resolution and other accepted engineering standards. a 9 Provide purm2nent solution for drainage. 10. All easements of record to be shown on "the final map. p l'l:: Met requirements a.; Butte County Fire 'Department or os ;ter responsible agency., 12. Street lighting shall be provided in accordance with Butte County requirements-, accepted design criteria, and recommendations of PG&E 13. Pay off assessments. 14. Meet the requirements of the 'utility companies (i.e. Put) Pacific Telephone, water, sewer), 15. Pay any delinquent taxes or current taws as required. 16. Contribute pro rata share toward traf`ic signal installation at Hicks Lane and Eaton Road. 17y Construct, full street section on Nicks Labe from northern project boundary to Sycamore Creek Bridge to R8 -3A geometric standard. Minimum structural section to be 2-" AC and 8" A'B; SC 250 prime, fog seal and 9576 relative compaction, Submit design to County Department of Public WoVks for approval. "W value determinations and other data may he tequired to support section design. 18 Provide road maintenande agreement. That agreement to also cover drainage maintenance: The homeowners to share drainage maintenance within the property;.. • 19. Provide 1 ft,. no access 'strip on Rich's Lane frontage e�tddpt at • et]trance5. BU ' ;:;.. ' PAGETTE COUNTY SUBDIVISION :COMMITTEE MINUTES �, P OCTOBER 1, 1990 20 , Construct left turn lanes at entrances to subdivision. 21. including shall'sinstall all necessary traffic safety signs 22 Construct turn around area on Hicks Lane side of security gates in ;a location that will allow 'for use of security 'gate without obstructing traffic on Hicks Lane, and/or allow people who have turned in error to turn around without backing onto Hicks Lane. 23, Construct full street section on interior streets to revis11 ed- RS-2B road standard as shown on the tentative map with curb ,and gutter and 2" AC, 8;" AB, SC 250 prime; fog seal and 95% relative compaction. Health Dept. tonditions;`' 24, Provide community sewage collection, treatment and disposal faciltiies in compliance with Calif. Stage Regional Slater Ouality Control Board, Code of Butte County, Calif. Health and Safety Code; and other applicable codes and regulations governingthe design, construction and operation of the facilities. 25. Comply with Water Quality control BeaCouni Calif. `t,ater Code , - , u#o Abatement District �requirementse of tfor sdthe of reclaimed wastewater. 26, Provide a community' water supply system 'in Compliance with the Calif: M State Safe Drinking Water Act. 27, Provide a legal (government) entity, to insure the operation, p g treatment and maintenance or re fir of the sewage collection; disposal fa,ciities: L 'Th'e' applicant shall comply `withall other applicable State and local statutes, ordinances and regulations: 2, The applicant shall provide for sidewalks adjacent to interior reads, per County standards, or walking paths that provide access to all residences within the golf course, in order to provide for internal pedestrian traffic safety, 3: The R. V. parkin and sewer treatment Facility area shall be fully screened form neih th a decorative ,lock wall. The details of this screening shall be reviewed and approved by the Plannin JDe aent prior to recordation of g p=fin the final map. BUTTE COUNTY SUBDIVISION COMMITTEE MINUTES PAGE '4 OCTOBER 1, 1990 4. The applicant shall form a C.S.k for the maintenance of water, ,sewer and road systems. 5. Prior to final map recordation; a revised copy of the C C & Rs shall be provided and include the changes indicated in the March 16, 1990, letter from Tom Wrinkle and be approved by the County Counsel. 6.. Deodar Cedar trees shall be a minimum of 15 gallon in size and planted at no more than 30 foot centers along Hicks Lane, separating the ;driving range. A temporary, mesh netting at least 30 feet in height, shall be provided until the `cedar trees are at least 30feet in height. 7. if during construction, furtherarchaeological remains are encountered, a professional archaeologist shall be consulted and ,construction. shall cease until a'full examination is completed. 8. The final ;golf course design shall include a 50 foot undisturbed rough around the edges of the vernal pool to be used as a buffer area. 9. An aVigaton easement shall be provided to the Chico Municipal Airport prior to issuance of grading or building permits. 10. All members of the Golf Association shall be notified of the treated water being Used as part of the golf course operations. This shall be included within the CC and R& All ponds shall be posted to identify that the water has been treated, the parking lot, LandsPed setback small be provided to separate Hicks Lane from 11. th 20 foot full landscaped .,ping shall include mounding or berming and shrub hedges in conjunction with the trees and wall, Final landscaping plans shall be approved by the Planning Department_ prior_ to Final Map recordation, 12, All residences shall require a two car garage and the driveway shall be utilized as tandem parking to meet the PUD standards for offstreet parking: ° 13. Enter agreement Cu�o50.Q0 per acre mtgation fed (unless moded)for draira e mpactsprir to final mp a ordatio ni 14; Enter into an agreement with the County to participate in a traffic mitigation and pay a fee of $1;000,00 per acre (unless modified) prior to final map recordation'. ----i--- --- �i MEETING ADJOURNtD lI NUTES RECORDED BY b. 8AUEY Describe anticipated on and off-site p drainage iniprovrments (PU13, MHP), downstream drainage channel Describe how on-site and g swill be affected (PI.IA; MHP) ------------ eater source: Proximity of water for firefighting purposes (hydrants, ponds; etc,) &&7e5?- S�9ST 1 Will excavation orgrading be necessary? Cubic yards (estimate)? List and describe and other related permits: and other public' a 9 p -... those required by city, regional, State and Federal agencies: pprQ�ais re aired for thisproject, including Z ►.. 11 residential, utt,t sizes. and type of ho size exnpecfednether units are single or multi -Story in height, V hedule of _. If indicate the Sales area, and,loadingfa line type, whether neighborhood, city or regionally oriented; square footage of - - ,y If industrial, p trial indicate t � estimated employment k' }`t p nrtent per shift; and loading facilities.. v �;m t I Institutional p loading facilities; and dent g flltl tion, estimated employment nal indiccommun tte the atbericCts to be deny per shift' esttmated occupahr.N, y p ed from the ro cct PNtrIAC)Ni\il=N`t`AL r1v1PACT 3.,A Vt).Nillldk''1 IIN12 �- _ ON h4PASk1RP5' ., - 1 ` identify patehtially� significant i C. .�rohmehtal impacts associated with the rezone, 'l��hat project design feuttres or special conditions ;o' x °)Proval (mitigation er o ,' measurrrs)'-arc prOvosed' to alit : �` nt impacts" ate potential •al IP r _,. MENTo' ENVIRON 0 - AL SE ITING i Describe the project site as it exists before .the project, including information on to plants and animals and any cultural,pbrdphy, soil siah�ility, historical and scenic aspects, la p and the use of the structures. a existi escribe sn existing structures on tht, site, 1 - ' A Describe the surrounding properties, including information an plants and animals and any cultural, historical, or scenic aspects. Indicate the type of land use (residential, F, 2 commercial, etc.? int etbacamily apartment houses, shops, department stores, etc -.j, and scale of devcloprttsnntCnsithfofland use setback, re aryard, etc,j; (height, frontage, tr, r.. �q 1 hereby declare under penalty of perjury that, i have read and understand the instr foregoing statements are true- - co plete and correct to unions and that the ' m the best of my knowledge and belief, t7ated; �' Applicant's Sirrtatttre ,. Datee44� Property owner's signature v �. .✓ 1 14 Project File Nuhlber General plan Designatitrh Q Request Consistentl,`._� r_ Request. Rezone to , Location and size of parcel(s) tz. 8 3 S 1NSTRHrTmm z-rO REZONING APPLI ------�GANTS l . If applicant is not the owner, written authorization by the owner or other proof of agency must be submitted in order for the applicant to legally s►gn the application. Application shall be considered void if not signed by the owner or legal agent. 2. All items on application shalt be filled in as completely as possible. Very few items should be marked not applicable by the term "NIA's. 3. It is very important that the application include an accurate and complete description of the Property proposed for each requested .zone, The applicant µ•i1.1 not be processed until we receive the following information about Area(s).to be rezoned; a. Assessors par number(s) from _ O rom the tax bills or Assessor's Map. b,"Street addresses (if available). c. Distances and directions to named streets, bodies of water or railroads, d. Legal description (subdivision lot numbers, fractions of sections or distances and 'bearings perimeter dimensions), of e, p ► Q O ( , or other ma shoi'in ) p, division map, ------- sI copies of tna withrezoning areas outlined Assessors Ma" sub p g pieces . r 4, California Government Code Section 65300 tit seq, requires local zoning ordinances to be must with a jurisdiction's adopted general plan, County a tent wt , � cons S ppro�°al of a rezoning request be su t. y= finding of consistency %vith the Butte County General Plan. ,Appiicahts may request ch n General Plan designations by filing an Amendhient.ppticatfon For General Plan > 5, The Application for Rezoning is subject to public hearings and approval by both the Planning p mm tions are stated in Chapter Supervisors. The for )' g Commssioh add Board of Su e procedures � of Count action on rezonin a p 24 of the Butte Count y Code. 6. Applicant fees. as of (date,) are 5 p payable to Treasurer of Butte Crtutit,,, Pecs mnl' be Std in cash or by check tttadc 7. Before submitting a rezoning application,_ applicant is 'requested to 'discuss with staff all ouest►ons about application requiretrients,Dunt Plan, and the prov islo►;is of existing and requested zbr► ng classifications.stency With the General C E $UTTE COtrNTY Buffe C., Rft n nn NERAr PLAN CONFOT?I.2ANGE Ing F'QR Comte PARCEL; AP OR S MREPORT 06; .. A 1411 . . •V'� ',�Y I.n ....... :. r � DUN Co. planning Comm t 'MAY 2 4 1989 vv . w•. _ Administrative Office 1163 EAST SEVENTH STREET OFFICE ✓FTHE ASSISTANT SUPERINTENDENT 014100, CA 95928-6908 3000 ADMINI: 'I'RATIVE SERVICES (31G) 891- (916) 891-3140 May 22 189 Ms,, Daniella D. Hamilton-, Associate Planner Bu`;ae 'COunty Plannir . Department 47 CoUnt,y` Center Drive Orowill,, CA 95965 Chico Unified School District. Response to Fairway E'.tatc:- Subdivision Dear Ms. Hamilton: p er dated May 17, 1989 regarding the c.� 1n reg: onse to your lett located on the west side of FairWAy Estates Subdivision, Hicks Laher between Keefer Road dttheRschoolseserving �t finds that the development will impact this area. ... ial unit: Basef:� on the averagctumtr�s£pro7eCted trr resident ,at this develop in the school dist r meht e] em ni 11 house app roximatel,y 82 school age children. Each n the District is filled to Capacity. tart' school i school( ) the completion of anew elementary students Pending increased nilmlaers of elementary greater Ch'ic6 area , � via reloCatable classrooms. wall continue to be accommodated that have been and will 'cont nue to be placed on existing elementary school campuses. 'uriior high school serving the area (Bidwell Junior High The 7 District enrollment projections School) is near capacity. i campus s will be Ot- t indicate that the capacity of existing deeded in the 1989%1.'950 school Y CampUses foroanlinterim will be placed ori junior high school period of time pending the development of anew junior high school: f s# APR 27 1989 iERA, A` " I EST SURVEYING G� � "` .,F� iiarnia .� LICENSED LAND sURVEYTNG 5,431 Mack Olive lr Ve .. paradise, CA 95969 phone: (9 16) 877-6253 .. no �Wm April 27, ISSS FSI WAY ESTATES SEWA w ; nispoSAL A small diameter pressure sewer its le preferred co iect an systrem Each home has its own septic tank: C see enclosed di gl�amJ'. Where necessary, small Plamp_�stis insaalw�ci in a p u h liquia from e. c e d tr*aU t within Z The �yee�p'i~ is ma��ed to the treatment S'te, �. eCfIuer..t is transported in a 2-a inch diameter Pic pipe whip is'txlawed 3 feet below the sur -face. The pipe does not have :, bay} I� %d on made. T7tte�ttta.l'?,�tes � of the pipe and the shat -_w }qss of t}� tre ►ch makes thx$ an inexpensive approac1a}. A Y rs�t�re sewer is usually one half the cost of a conventional pressure ay orav;ity s�;*stem. �1si g PSG Fipt� make=_ the system wager tjight.. 1 The systetr' does not have inflow and .nfiltration. treatment and d!t-,rs sal -Vstems to This be s� Ows fortactual flay,*s rather than taking thc- tqyj "e a 5.aS"ge to E' Anda a lrl f lr_�w WO—ter wha-' rh is wir .:a hacxt)ns wit'r} rtearly 6.i �'4r5oya*er.W<<s . jet f ion stE'At� c � Lhew, � age, they e The homeotaner purchases the tank atl"d pump when the ,home is built, ., The sewer pipe, is placed in Shallow, narrow - trenches using ditthWltch type equ.i.pmertt, This makes it easy to weave the pipe gourd trees land utia i_taet. .E re',atment ajc_D C19�adn3 t i ? �'" '. is .•" iii in orlto the �solfj ya�G..'a+�«SJ{L'yi��. 4F�'a]kyy "��f. .Ly ��tµ<,L.+.`�'.l'A, �.0fW'ep.'i Cyr wC/L:y,pG�y+y�c�yw�..�iYi0. y� +. isM JL tc nLt, n�J�i tl14 Aril \.�� �+�.1� 1.4. �i ,+.a 'Belie G 6+�. LS r'i3 RYh ttpl,t into four t8.1.k'.,s. Iu4icr*'ian te1eV3d'e lacy %x1 f .: w v+a.;"! be disinfected and w Ki ed Into ponds for ir—.ICicst�t:krt,_ k ADVANTAGES 1. Approximately 13.8 million gallons of water will be Z., reused. A, portion of the reused water will return to the ground water, Neax'ly alb the ni:Waxe. will be removed, one half of the nitrates W --1'.l be lost in the filter and the remaining will be used by grass• Nitrate removal is higher wi 4h this option than tlptioft 1. • Maintenance will be low. � Most cost e" "pc t kve . be t0 CQshGlde with growth, 6., System can lanasea Butt--`C4rrrntyF7}� Je a t '� p r•tment Vater Requtrerna or Develo r� Developer r=aw' Estates Location Hicks Lane between Keefer Goad anti Pa oelR Nu MbecU_ D Requirement Class 1 In lieu of a pressurized water system, the following area will satisfyy the Fire Department requirements for Witter,, (A)Foreachbtcreat,xlawater storageta t3lJTi'E COUNTY llkweh Hut1e Courtly Fire popanmcnt ccuroF,,, a c p of 2,500ga6ons or more direct all wea her e4 �PPetl wdh calls cep rolevi m Forestry, $ccessorfired amen And Fire Ptoteciion neetbn meeting Standard S 29, CDrti- cOnSOhd:lled Fire P1plechon r$L pp+ r The lcmib of hoai<- t ups shag 4e determined the Fre ns or, (t$200perlot o a appropriate Water tender fund BILL HOLME � of stru per b2 fora total fee of 5�_ S (A) Constructior. of storage facllitles or B saualtors Chief done at the time of construction of habitable abuildings as de- fined in the Uniform Building Code. Payment shall be made pd -16 FRONTIER CIRCLEcast or to the issuance of building permits for habitable buildings. • Q CALIFORNIAALIFORNIA 95926 f;ii2t �91•f5flh 0 Requirement Class 2 A pressurized water system feet,gh approved numbers of fydranfs is strongly recommended, hydrant spacing ______ydrant size Average required not technic, g �r_____ inches; and residual flow ally feasible, the following options will satisfy the Fire De (A} Water and a tanks with a cpaacyof 10,000 gallons ormoro u' partmeht requirement for water: gpm" If this is meeting Standard S 29, the ►o ps g ,u eq gpped With direct alf Weatthher amass or fire de (B)'In ground swimming pools u' F shag be determin, by the Fire Deps;itment; or, partment wnrte�rort (C) A d stand 'eG plumbed to with a drafting �nneaiat or drafting access as approved by the Fre D 1,000 feet in length, source as appmved It a the Fire D apartment; or, ed There must be at lease to a reliable water sou. epart r t, Such a �Mandpoe item will not exp ,000 gallons of water available and strategically located for each of 10 dwellings, or portions waterthereof ed sPalvra 1s available and la cessible for use and d sources). Provisions must be made to in dwellingsq p Y r all Weather conditions; sure that the 'Requirement Class 3 e A Pr6'Usurized community Water system for fire protection Is required; The specific ;oc hydra t the Fire Department in consultation with the developer. Average required hydrantfsha in hydrants will be hydrant size s - idual:flow 1000- p gpm. g ; 50— fleet, � Regt,ilromeht Class.. 4C es and res Water for fire protection is required, The strongly recommended system is a hydrant system capable + fie flow requirements. Average required hydrant spacil�� p ble o, meeting the residual flow. gpm, if thio is hot technicail� feasiblefeet, hydrant size water storage may be substituted. Such a system is subject to appro��;31 of the Fire D —� uMhes, and flow front such a system must meet the flow requirements provisions System tf t eFvolbep mdepenTentpumps and static made to insure the system provided Is maintained to Its design capacity, Formatio ehe Firent, The available water the system serves snore than one lot. Large developments maybe capable ofti to the Fire Department must be each lot could have an independent system, eliminating the need for a CSA1080. °f a CSA it Own is required when AICSD, supportingsystem, � Requtretneht Glass 5 thea own It so hydrants the developzod er may ra. into for fre Protection s required, In lieu of bearing the Community y y p y' into g cost of installing a fire total fee is $ hydrant fund, At $9,72 per toot el street fronta "MING AND FINANC AL RESP N IbiLIT ge the THESE REQUIREMENTS MUST BE MET PRIOR to OCCUPANCY OF ANY BUILDING PARCELS, THE CONDITION .NEED NOT BE METCASE, THE DEVELOPER MUST PRIOR THE ARRANCC MENT TO COVER THE COW'PROOF OF A �iEOtfIRI'ERFTOpRMANCEFILING BONb OR OTHEOF THE FINAL MAP F THIS IS THE THESE MENTS, FINANCIAL A��;lftlonaf ComtriehtsCRet�ufremeh INA S OF Access to securit tS and tlfe i:`ire ' eba*ateG mor.` trb1i� sa�et aaenr;i�s_ m>Sst b� • �uvY�3ecibe elo- e Gompiete t•equtremerits In. Butte Cautitye 5 bdivlslohg Code S 1 �..�`' ' .�., � �I , ec:tron 13.0ta, .t __ r ®' _. m ter. Tom Wrinkle Sierra West Surveying 5437 Black Olive Drive Paradise, ca.95969 August 15, 1989 Dear Tom, On April. 13,1989 200+ acre • a preliminary soil examination wa parcel off Hicks Labes made on a . Mr. Ed wisOchinero; the developer, hes to create 190' homes fronting on the fairways of an 18` hole golf course, The projects k110wn as Fairway Pines, will al oclub house with a restaurant. The purpose so have determine the height o£ the se p p_se of my work. was to asonal water table and an appropriate method of treating and disposing of the waste Water. Previous Work In 1981, Your office dug aver 260 test pits and p + fiu n also performed many ercolation tests the southwest part of the performed percolation tests in report on the soils, project.. Geo Hansen in 1983 wrote a From this work, the north central part 'of the Parcel showed the most promis.,� Recent Soils Work More detail work perfamed byemyself was done in the central area. Nine deep test north, g. pits Were dug. A description of those pits are igen in A , soils are suitable for sub The examxnalos,howed the J silty clay Yoam to light spurfaceAdi.sposal, The typical, ?° have cobbl cla loam. The lt:Y lay layer over very gravelly and a Inches els and cobbles beg -in usually at 95 great below the surface, The depth to -a s than 13 feet at the north end of thesgnal water table is pro ert Profile had absorbed the annual rainfall of .18,0 P Y The soil. the 8' foot depth. They were dry below 8`feet� Testrally within eXce tion. It had '°dater at 7.5 feet and mottleing atpit #9 was an P Was the southern most pit. (see ma 74"+ This pi, F,1 oW The hpraome will ' gPd Will - Produce �8 0b0 + gpd. The grease Will be olub;house restaurant by usinprodu �. _ and a restaurant] controlled. from the 5 large an,.erdeptos tanks, SE �.y 1C j'1� "Tj C....�. (503) M4146 CONSULTING SOIL XIENT18T 91,80CaMtri Malley Pxad' _.. )k%6WV1, Ci:Y+Ft1M 6VA4A ProposedSystem The proposed system, consists of septic tanks placed at each home with a PVC pipe collecting just the liquid. This liquid known as septic tank effluent is carried to a recirculating gravel filter where it is treated and passed through a disinfection unit to a series of ponds. The pond water will be used to ;irrigate the golf course: Figure 1 is a schismatic of the system., Primary Treatment A 1000--1500 gallon water -tight septic tank will be: used at each home. (See Figure 2) The solids will be retained and the liquid. will be allowed to pass through a screen with 1/8" holes into a pressure sewer line. Collection System' A small diameter pressure sewer :Z-9" diameter PVC line will be used: Where necessary, a small pump is installed in a screened vault within the septictanks to provide the lift needed: Just the liquid fromthe tank is moved to the treatment/disposal site. The effluent is transported in a PVC pipe which is placed 2-3 feet below the surface The pipe does not have to be layed on grade: The :smallness of the pipe and the shallowness of the trench makes this an inexpensive approach. A pressure sewer is usually one half the cost of a -conventional gravity system: Using PV`C pipe makes the system water tight 1 The system does not haveinflow and infiltration: This allows the: treatment and disposal systems to be sized for actual f]bws rasher than making them twice as large to I inflow water which is what happens with nearly all conVentional gravity flow systems as they, age 2: The sewer pipe is placed in shallow, narrow trenches using d tchwitch type; egUILDMent: T)lis makes it easy to heave the pipe around trees and dt"ilities: FIGURE SLOPE GROUND ASS L1D WfTH S'TAdVLESS AWAY F' , H � STEEL �•�. NEOENE ``1\\ GASKEr'Ah'D STYF1p1'W. WkA_ ,t w C, PVC M`SPEC1'l( EL1'=7 ' t!- SPLICE „� •►21`' L11A RR3IIED PYC RISE , STltND71RD RT Wtlff M P CAP 90X iv/ Gi {o Gf{1f°g ` `^-.,,f I M HEOPF{CNE GROOM s CtLET E i q 1• DIA NYC NOSE AND YALVE E EUtlrrTni *FLO{�OHTF ajrn AT EFFLUENT w i • ASsihif31.Y ,y w w «. ► . w* . , w♦ �, • • . + '«fit � "e1 .+1'A .+, ,♦. J,• A ,F:. ' ii `♦�« «wa - � •.w. + + i♦w•w• . ♦ ♦ '«FL «•i •'t •s:'\•'ti"•�•A w,, d.• -,. '_ w• w w �YY\fir • ♦ a fA. FLE)01 mVC {MCC LEVI I.OONPIC� FLOAT'ASSEXMLY :� 1 LQrIO With FTTT1ridg) (t2' a .___ - ea T .c ra lILARM .• 'ryox�E Ye ayv��ltr GRc�om ,� I•N tltll ^d y�*.Yt`^i 'Lu �it L+i'♦@' Y `K n"Ib ' i'C��'ib'C '�, �..:� }.st• icy„ M �. 1 .. , M�ry�j w« ' IN ,11TOP OF TANK � . i ee "}2. twrp a f" i, s ; «..c` a,% �' k .. �iN��*'�""bf`� :'•+'�+ Wr"""'L""a." � , wAi� ac"s �« t 1rD1A. Pv V PM1' y fh \ ! 1 n+•a ;�i'ta:;fc.ti� ° kS�,y,ryt e'!` ^'; �. h" w Mti Y«d`j^ ♦Y`Q A4 ; +^MeEl' ♦ � '�CE•pa � � 1 � ��1 N C DU1• PVC FLOW RF}pg= .• • I ; LOW LL"-VEL AI.M!Il fr �. A �— �L+o aF �`3 : _ 1.114' ORO(V2E C1iEC?C YALVE Mt•1t4"DtA. INLEt HOLM AM= F'ER1HtSM oo rr'VAftT � w r {! 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T. � t �1' > ,',rf' .,G a ',, +�'� ^�` �� , a a y ss`tk> � • w a'#r xp � � >rw .f , � � 11 Y ,,.,� ��6' �� <a ^���,;a �1,L��rn9y ,� � ?S'��+� �.tr� d,;� � o?�° `��'�� �4�. a,,�. � �.£?,.a f��x�".: �n,��; r 1 i • :;� >� w .+};� n,ii� e*.:Y;'i:�,,'�5avr rl.> .�S.,t."�r 6�+�h,� '�, `��,4...�R�`��:� ��•��:'S.hfi''� x-•gri.i•!::;, 's. Y,.�: ,.yl,y '���jJUI ♦.f A.• ��W.�t:.la':.u,1S�4�.,7�`;�'��y:•�2•^'� rtiCt��t ./t1+u��•.. ry :.'�v> k PWa^•Y�..��X ,,j�tr� '+ �',F�> i+� �y, 3st w«yw•yw♦�i'Zw♦: w-♦��i..,'�«i,«,y«••^' � i+ w♦�%.34tf+1.]2.tia�. 'kin. v��'n`r'4 C,s<'�o-g f '?v���" {(�p5,??T, � �}£y'� y*,♦i /j ..,: ��'+'lw7wwi j.iw N w « h � •�•i•«. • •.wa Aa w« a�1•i.�P! ♦ ♦�«w6 wa.WN`u^.. ^��•w1L�1.:•.�.•�^3V[3y�y.�L�OilYfs,� r :�' ��'«� ' " w N w f'w• w w w w . w d1 7\ a s • w • w• • w• • +h w w+ w a w .t• w• w. x w w. w a w w, w♦' �• w• w• Na w• i.?.• .- w w w w w w w .v w• w .,.. w w w w. w w w w w w w w•7,• _ :sy �� ver! �r�ENr pUrrrr IVp �.-. ♦.r..,• u>i» a.. �A LEV]tL CONTROL k'LOAT jfti�,4 9LY ._.. .... .. ':': . ..:' ... wi.:; .ww ..,.wN t+.watl,i+l4u..F•,,. , ♦ IIM',i1 . u1 Tzeatment and Disposal There are many options available. A previous report (April 19, 189) showed that twomethods will work on the parcel. one method would be a large community drainfield. The other involves cleaning the effluent in a recirculating filter, disinfecting, and reusing the water on the golf course; Of the two, reusing theL water was the preferred method for the following reason". Advantages 1. Approximately 1318 million gallons -of water will be reused. 2.; A portion of the reused waster will return to the ground water. 3. Nearlyal.l the e nitrates will be removed. One half of the nitrates will be lost in the filter and the .remaining will be used by grass . Nitrate removal is hig1jer with this method, than with drainfields. 4. Maintenance will be low. 5. It is the most cost effective method 6 The 'system can be phased to coincide with growth. The quality that can be expected from a recirculating filter is high. Table 1 shows. the degree of treatment that is routinely produced. As can be seen, about 45% of the nitrogen is lost, BOD and'` 85 are reduced by over 90%. There is no odor connected with the system because the dissolved oxygen levels are very highs The septictank :effluent .is dosed onto a bed of fine gravel several times before it is disinfected and sent to the ponds. There. are 6 of these filters in operation in Paradise All eXcept one, ;'which has some design problems, is functioning very well. The filter at Paradise high School, ;which 1 designed, is functioning very well.. The treatment will be located at the north end of the parcel. The effluent will be split Into four recirculation tanks: Each tank will service a recirculating' filter. The effluent will be disinfected using an ultraviolet light or chlorihe placed Sn ponds for irrigation. The `treated effluent will meet Title 22 s1Lndards for irrigation water: The treated liquid will be mixed With water in large ponds: From, there it will be 'used to irrigate golf greens and fairways. TABLE 1 A COMPARISON BETWEEN SINGLE FAMILY RESIDENTIAL SEPTIC TANK EFFLUENTS AND RECIRCULATING SAND FILTER EFFLUENTS SEPTIC RECIRCULATING EFFLUENT TANK SAND FILTER % CHARACTERISTIC EFFLUENT * EFFLUENT .,CHANGE E 'I _ BOD5 mg/1 217 2.7 99 (70) (82) SS mg/1 `, 145 3.8 - 97- (70) (82) NO2 mg/l. 0.02 0.06 67 (57) (28) NO3-N m4%1 0.4 29,9 99 (59) (51) NH3--N mg/Z 40.6 0.45 99 (60) TKN mg/1` 57.1 1.1 98 (57) (51)' TN mg/1 57.5 31.5- 45 (54) (51) 5 � FC otg/100 m1 2.6 x. 10 8.5 x 10 97 (56) (109) 6 "TC etg/100 m1 1,32 x .0 .0 x 10 96 (45) (46)' Number 8 4 Systems * Arithmetic mean of 8 sl ystcros� Ar,ihmet'C average of '4 air5ems, * Numbet of samples, 6 APPENDIX SOIL PROFILES The entire site has a 0-6% slope. Data collected on April 11, 89. 0-121r Silty clay loam; modimed. subangular blocky structure, 12-4411 ilay; mod, med • j subangular blocky Light Silty c . structure, clay skins, 44-64'' Loam• mod. med• granular structure. 64-751" Sandy loam; 'single grain,, 75-102" Sands and gravels, dry at 9211� no mottles, gravels at 8 feet. 4 2 0_1211, Silty clay; coarse, mod, subangular blocky structure. 1"A 2 It ymod. med. subahgular blocky L1 h't Silt Cla , g •ycl structt�.e, y skins. 42--741" Loam mod, r-ad, subangulat' blot�ky structure..; clay skins„ 79-99" clay loam; dense, slightly hard, clay skins; MN stains, 'dry at 012'' Light silty ;clay,mod:,, caarset angular blocky sticuctt�re. 12-441. Light silty clay; mod, med. subangular blocky structure, clay skins, 4A-70'' Laam; mod, med.,and fine subangular blocky structure- t' flay loam, denser slightly hard, dry at 701. 78�84�i Oravels and sands. 8 i u-12" Light silty clay; coarse,, mod., subangular bluck,y structure, massive when moist. 1,2-4W, Clay loam; slightly brittle,- mod' coarse and med, structure, MN stains,, clay skins., angular blocky no mottle$,. A 8-63�� eery gtavell,y clay loam; slightly brittle material between gravels, 63-880 Very gravelly clay loam with larger gravels; dry at ggir, q-1211 Light silty clay; coarse, mod. , sub an angular g blocky. y structure; massive when moist. 12-,60" giltclayloam; mod . , _med .. ; subangular blocky st,:ucturemany clay skins, many pores -few pores, many roots; dry at 5511. 60-85" clay loam, slightly brittle, dense;" few—clay sklhsi 85-1050 Sandy gravel, dense, 65% gravels and cobbles, slow permeability is suspected. q 12a' tight silty clay; coarse, "rood., subangular blocky structure' massive when moist .- � 1� -580 Laght sal'tymoreyma'ssmod. + a tithe y structure, iveminlowE'rpartao horizon; 'c'lay skins throughout.. 5g-68 i Clay , loam; many large' pores; moa . tried , subat�guXar blocky structure., 6B-870 Gravelly sandy clay 1aati. 87-110" Clay' loath; dense, slightly bzit't1e;', 2t1$ pebbles, s1aW loweL h�,.s 60$ permeability is suspected; partie�h gravels and cobbles; M stains 110-155' Gravels, ,aens'e, slightly moist at bottom. A. SMALL DIAMETER SEWER COLLECTION SYSTEMS Listed below are protects using pressure sewers and septic tanks. Mr. Charlie Nioore., engineer for the. Calaveras WF ter District has '3 systems operating, in his district. fie is very familiar with their performance. There is one being installed rn Oroville. NAME OF PROJECT/LOCATION NO, OF CONTACTPERSON CONNECTIONS West Point/West point, CA ,Smallcommunity east of Jackon, CA. (Effluent goes Chat:lie Moore to drain -field).' 150 209-754-543 I 6 Mi'e Village/Angels Camp, CA Small community east of San Andreas, CA' (pressure sewer Char:Lie Moore is tiEad to city sewer). 209-'154,-3543 Quail Ridge/Arnold, CA New subdivision east of San _ Char]Lie-Moore Andreas, CA. 209-154-3543 Malibu, CAI 5000 Engineer-ing sciences Jim tre.zack 818-41406075 West, Bay Sanitary/San Francisco HenryHyde - _ _ 415-385-036 Saddle Back/Auburn, CA Carl Rodolf 916--344-2313, Glide/Glside, Oregon ** 55`5 Terry Bound,> (Effluent goes to treatment 503 -673 -3012 - plant): Being besign;ed' * Oldest ,system (10 years) 12, B. SAND FILTER HISTORY AND CASE STUDIES Sand filters have been with us for over 100 year.si The first documented work on their use is that of Si,r. Edward Frankland of Great Britain i'r 1868. Mr. J. Hailey Denton constructed a 20 acre sand filter at, Merthyd, Wales in 1871. Massachusetts State Board of Health in 1887 studied .and filters for 21 -gars which included 250 filters filled with different materials, sand sizes and loading ra'e=s. Sand filters were used until the early cling for cities bothinEurope and the U.S. About that time trictling filters and activated sludge were introduced.. Sand filters lost popularity ,for large systems because of the vast land area required. Not much work was done with sand filters11fiti]. 1945. The. University of Florida Research. Lab picked. cap the old technology and began working with intermittent filters to solve ,problems with restaurants, motels, and small subdivisions. In the early 7015, interest in sand filters grew rapidly. Open-to- the:-air intermittent- sand: £iite.rs were beincj tested in Wisconsin at tI,e University of Wiscoi.,ain. They t'iscovFred their filters worked well in the cold climates. Little freez;ng Problems occur. They didreport odor problems: Hines and Favreau (104) from Illinois over came this problem by introducing a recirculation tank. Septic. tank effluent entered a tank containing effll.jLnt that h ve been recirculated through a coarse sand bed that was open t:�'the air, Illinois used recirculating filters fordividual homes with a in high degree aF "rUt ,e$S. Over 1000 of the Hines-Favreau filters were installed lb Illinois when Ott: gon be.^ame interested': T'beir technology was imported to Oregon in 1975: Full scale testing i-nL Oregon started in 1976 and was done on recirculating filters containing coarse :.arid as Well as pea grav:•1 dna some with a combinat bn: Mork was also done (in intermittent sand f%lters which were buried. The state 'received a grant from the EPA, plus they, also ,ret,eived help from private engineers,, soil scientists, and public agencies to conduct .a 4 year atu6y on sy5terrts built through the state, The systems were monitored by the Department of Environmental Health. Individual land owners that had pi.'o)alem sites built a.nd funded each of the filters. Galifot,nia began rasing sand filters in 1.984, There were two pilot that time mhre filters have beeir installed in Butte, Lake, and .Amador counties; - C. ULTRAVIOLET DISINFECTION In the maid 701s, the use of ultraviolet light for disinfection of wastewater was explored. The U.S. Environmental Protection Agency began to encourage :a few pilot projects to determine if it was a viable alternative to chlorine and ozone As the result of their studies they conclude i'... the demonstration of its application on a full scale basis have shown the process (UV) to be 4gable, feasible for applicut on to,a wide range of wastewater qualities, effective in the inactivation of pathogens, capable of complying with disinfection goals, and cost --effective. Its advantages lie in its relative simplicity tind in the absence of both residual and .- any chemical int rmed aL.:s(U5 EPA De'si.gn Manual Municipal Wastewater Di.ninfection 1986 EPA/625/1-861021. The reader is referred to this manual for an explanation of VV) The principal of UVdisinfection is Very simple. Light with a wavelength between 250-2 tzr. g 70 nm interis with the reproduction of pathogenic organisms, The liejht energy causes a rearrangement of the DNA and rMA which i's responsible for reproducing cells. The degree of kill depends on. the transmittance of the liquid, the y exposure, wavelength,, -the intensity and duration of ex osut There ate. many designs of UV equipment to maximize exposure. They ranee from lights within open wires to `lights encased in quarti tubes within stainless steel housings, The effect on the .organism._i5 not lethal, The main nmpact. is to damage the organisms ability to replicate: The damage also has to be'suff"icie'ntly gr'ea:t to prevent what is called ilphotoenzymatic repair's. Some organisms have the ability to repair their DNA and RNA in the presence of longer wavelengths. This has special signifi C G ,F ro 1 i r •J `,� d i� , I •� r i ax♦� ^�� rr� fl1 r '. j°1 � , IIFF�B �o, Planning Cornntr CCS OE`avillo C.t►�iifarstiia FaLrwau kstate it • •:a i ���..,, ,.�:' i .fit( .:� ais• + ♦� . 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J� ' ` � -.• • + -• . 1'-71 ,�- � ''��� a�� � .a , n•u 1.1 . rf . gg \ 1'1�,- ^•..v '�!� ,�Jn -.e a •a �A, g • c7.� 'r' ! ���% �54S ' 1 WM. � � \Y ` ` �• ( � �"•W� �.4�1 i) �y,i �>,"?� V 117 �. � � L.rr bey t f illi�1' Y i tall h ivIUlf • IS � elf stka�y r� e xfiE s °'�P � ct^� e r£ < �i Y ° u� •rc ris�u,� ' , •r ( r fi •'. ' ' ' +' , 1, �. � r �' s � YS 1 J C dy ,eu ! IiZelr, { rtn.� r•.• •,5 1 < x •, w �y' i� £ �'k ,S CF<� u � «c� .7`�% X z <i' s i i 1'' � r411i r�". r'y�• fS1^ �"�t �^�"' ;,x3s s+� c > ti „P„�, R �� � ' tat r �fia� � , '^� S� `> .,>o' �r�� r? £��s,�' �' � �� •rfi i.,t 1 e t • ;`•�a,�.y„ •2 x Y x� ��a � ` ti. •, w i �tr :; s n+, y tek 4v s.�xE � a ,,mea' a� s° f K��wt .��-�.,1..:� A. r.r�)r ko� - -"��c,``t �c'�t� g %� f a i- a y.,y � � �?�h> S, lJi r <�fTk°�yYy, F' 4+,,,, ,�,�`�• X ♦Z'^^^.S s +f w,,:�n t £. 2•. 4;.y �� � ��f '� �.4 s'�' � � r ,,,,?t'fiY` oGt '� `�" i tao � � ,, s , - �S;StS ...!urX S i r3^�'''S%.✓� i ar .�„�'c .: ,� ���}, f� 2; ��? v �� ecvyly£�< �Y}ir �} � r� ,. . 3Ids.-nv�"�i �„y�3:C,'� •�i:f_',cs C '. w • i 1t . IIP t , • 1 1�r! � Treatment and Disposal There are 0any options available. A previous -report (April 19 189) showed that two methods will work on the parcel One method would be a large community drainfield. The other involves cleaning the effluent in a recirculating filter, disinfecting, and reusing the water on the golf course. Of the two, reusing the water was thepreferredmethod for the followin4 reasons. Advantages 1.. Approximately. 13.6 million gallons of water will be reused,. 2. A portion ;of the reused water will return to the ground water. 3. Nearly all the nitrates will be removed. One °half of the nitrates will be lost i;'n the filter and the remaining will be used by grass. Nitrate removal is higher with this method than with drainfields 4. Maintenance will lbe low: 5. It is the most cost effective method,_ 6. The system can be phased to coincide with growth. The quality that can be expected from a recirculating filter is high. Table .1 shoes the degree of tr,�atment that is routinely produced: As can be seen, about 45% of the nitrogen is lost, BOD and SS are reduced: by .over 90�:. There is no odor connected with the system because the dissolved oxygen levels are. very high. The septic tank effluent is dosed onto a bed of fine gravel several times before it is disinfected and sent to the ponds There are 6 of these filters in operation in Paradise. All except one, which has some design problefis, is functioning vety well. The filter at Paradise High school, which I designed, is fuitcti.onin ver well. The treatment will be located at the north end' of ttse parcel., The effluent will be split into four recirculation tank~-,. Each c The effluent will be tank will ser�rice a recirculating filter. '� disinfected usinq an ultraviolet lighlc or chlorine placed in ponds for irrigation: The treated effluent will meet Title 22 standards for irriganon waterThe treated liquid q will bmisted with water in largeponds. From there: it Will be used to ir,rigate golf greens_ p . ' ! and fairways - 5 -TABLE 1 —` A COMPARISON BETWEEN SINGLE FAMILY RESIDENTIAL SEPTIC TANK EFFLUENTS AND RECIRCULATING SAND FILTER EFFLUENTS SEPTIC RECIRCULATING EFFLUENT TANK SAND FILTER CHARACTERIS'T'IC_ EFFLUENT * EFFLUENT ** CHANGE BOD5 mg/l 217 2,.7 99 (70)** (82,) S'S mg/1 _ 1,46 3,:8 _ 97 (70) (82:) NO2 mg/i _ 0,.02 0.06 S;7 (57) (2S NO3—N mg/1 (144 29.9 99 (`9) (51) NH3—N mg/1 40.6 G.'45 99 (60) (51,); TKN mg/1 57.1 11 98 •,57) (51) TN mg/l - 57.F 31.5 45 (54) (51) 5' 3 FC org/100 ml 2o,6 x 10' 8.85 x 10 9,7 (56) (109) 6 4 TO org1100 ml' 1.32 x 10 1.0 x 10 99 (46j (46) Number 8 9 Systems * Arithmebic meati of 8 systems: ** Atithmetld 'aver,age of 4'systems. *** Number of samples.