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HomeMy WebLinkAbout041-080-027 (17)J'!! PAULSEN RESEARCH &DEVELOPMENT Wensley W. PaulsenI NC. Paulsen' MINING ENGINEER AND GEOLOGIST, California -Consulting Engineer No. 39 Reg. Geologist No. 917 Cart. Eng. Geologist No. 351 Nevada - Reg. Professional Eng. No. 2 78 :Apr.il .15,19:82 Mr. Steve Streeter Butte County Planning Dept. # 7 County Center Drive Orville, California 95965 Telephone: (916) 823-5419 P.O. Box 225 Auburn. California 05603 Dear Mr. Streeter, Per our telephone conversation of this date, I am enclosing my business card for your reference, and I will be happy to write a report and do a field examination re: Logan water& mine district. "ll I am in South' America the next week or so but after.Apr28th. I can schedule anything you would have me do for the planning dept. 040 CO.; iarming t_:Ornn APR 16 1982 Oroville, CajjfOM!4 Water Supply • Ground Water bev.e.160ment • Engineeringstruct'u'r*as • Agriculture - Slope Stability & Other Geologic HI,51 Drainin.4 -Brine Hydrology - Electric Logging' Mining - Environmental Geology Members: Assoclatl6Kof Engineering Geologitis - National Water Well Association. American institute of Mining & Metallurgical Engineers I BUTTE COUNTY PLANNING COMMISSION MINUTES AprA 1'115, '1'982 B. ITEM ON WHICH NEGATIVE DECLARATION RFGARDIN-G ME TAL IM ACT HA BEE RECOMMENDED 1. Ronald 1t. Lo ,an - Minirig permit and reclamation plan dor a placer gold mine on property Toned • 'A-2" (General" located on the west side of Dry Creek-Road, approximately 3 miles north of Messilla Valley Road, identified as AP 41-08-27, south of Paradise Mrs. Kircher explained that the applicant had asked for a 30-day extension. Commissioner Bennett reported that Ale had attendee: the meeting last Friday with eter,and Dr. Behnke--whose opinion-it was the:applicar.t, Steve Stre that a report covering only the app 1icant's.property would not give desired information for downstream property owners, and it was his estimate that the cost ofa report all the way 4-o the junction of Messilla Valley Road would cost about`$21000� Commissioner Bennett added that, hopefully, some area. residents would participate in the cost. There was•no:one present interested to speak on the project. It was continued OPEN until May 13, 1982. 152 ago r` Ail Bu He.. Coun LAUDOF P4.47Ui r• I: . -- Ca.COMMISSION PLANNI.N "7 COUNTY CENTER -DRIVE: OROVILLE, CALIFOFrIIA 95965 PHONE: '534-4601 April 16., 1982 Mt. ` Ronald R. Logan 409.5 Dry Creek Road Oroville, Ca. 9S965 Re: AP 41-08=27 l As you requested, the Planning Commission at their mee�i.rlg • on April 15, continued the hearing on the above-referenced ion plan OPEN until parcel for a mining-permit and:a.reclamat lay 13.. Please send a letter of authorization. for the hydrology Pau,lsen.Geological Engineering,. study to Wet Paulsen, P. O..Box 225, Auburn, Ca'TheS6esuTts.lofp]isestudyes'hoiild there is (916) 82.3 5419. be submitted to .us in writing, by Friday, May 7, at the very latest, in order to forward the data to the Planning Commission prior to the May 13 continued hearing. �. Dr. Behnke's outline is enclosed for your use.' Please feel free to contact our-office, should there be questions. s, S . Sincerely, Bettye Kircher Director.of Planning -ai by Charlie Woods /hd Senior. Planner .Enc • ��<• .sacs'.:;t:: °a:: �•': - ! t Y. Iii'.>. '.,5 .-"• t rl.. i�:�. r cid t i'•:4!1:, A al+ : i - 153 +:. f i' PAULSEN RESEAItCL! & DEVELOPh1ENT Wosaey W. Piulsen _ __• - - - - - Tetephone: (9161 823.5419 Cali fomla-Comultioo Engineer No. 38 _ _ — - - P.o. Box 225 Rtw Gwogist No, -917 - - _ Auburn, Calilolnia 95603 Cert. Ercq, Geologist No. 351 Ntyedar Rep, Professional En, No. 21,78 _ may .12, 1982 Ron Lown -- `-_ ;4095 Dry. Creek toad - - L-roville, Ca. 95965 _ Logan t -- -nclosed* is a. cop,, of my report on -tile. Geology 8: Nyrdrology Of your mining proposal and ':'reclamation wlan'. Please review -the doci ment carefully and advi^e me if there .are any G}:anaes .Y:hich you should feel are significant. As soon as..You have rei:ied the report -ol ease let me know and I vraLt send ..the original to • you. Yours very truly, ' aeAv/ssley- Paulsen traP P -AP _..b ...: ...:,�:.. ;.... :.�4ds g of Geo ,..�:......; , ;.,:,c;.•,?' i`_ ^t; - bili b Olh .. Og C X54 ' Water Supply •Ground<f�Y�►er pe+�loprrifilt Enp�netrrnQ 5truGt>ire /kOrKlrlues:� S1oP►,�ii N driins{yi • �f1ne Hydrology'• Electrk'logglnp �1ll�neng Enviroritnental GeotoLy • National Water Well Auocieaon, mernbur Aubeiation of Engineermg•Geologiiti Wadey l'l: Pw!cen MINING 'ENGINEER AND GEbLOGIST, INC. Telephone. 1916) 023.5419 Cat itornia•Consulting Engineer No: 39 - w _ _ - _ - - - - - - - 1'.0. Box 225 ReQ GeologistNo. 917' .. ' ' - — Auburn, California ' 'a 95603 :v,art. Eng. Geologist No. 351' Nevada - Peg. Pioleuional Eng. No. 2178 _ May l, 1982 r. Ron Logan 4095 DY Creek:Road:-- -`::: Orovllle,.Califorriia 55965.. '.Re:° Mining Permit and Reclamation 7"' Plan, A;P. 41-08-27 Ilydrologi.c. - - Dear. lilt: -Logan; r� , effects, Geological -Conditions. Thin-ie,tter-reports-on my, hydrologic .and . geoio9ic in�ve.stigations as well -as stud.ies`.relative to.your proposed mining operations, and reclamation plan on your property- The location of tre property is shown, on the enclosed map, and is described as the V- of the south J14 of "the SE ..of section.1'T21N;' R3E�. MDB & M. Geologic and ;hydrologic'data-are,-expressed.. as' -well on the' map, and sections. I ;liave'r,copie:s `'of .;:your proposed mining .plan :a:nd;, r.eclama:tion plan and'.I;l ave.<.examin:ed the: mine'.ar.e.a:::as well a.s-relat;ive adjacent areas. The following geeilogic cond ti:ons'o°ccur -at the nine .site and are. relative to the:regionah geology -and hydrology.. 1. The:,mining operation will be in tertiary auriferous channel which is part of the new era formation a,ld lies on Mariposa -,.slate. 2 -."-Your west property line is probably'no more than 100 feet west of the upper contact between'the auiferous gravels 'and the base of the Tuscan formation. Even'.if.you; should establish 'a 1 to 1 slope from the base of the•.of your -mining. to the property line you would intersect less than 1/10th of the 1% pf the Tuscan section in the ridge to the west. .3 The -rim. of. the ma.in:.channe1.. passes .some . 150 feet north of your south property line and treads- some 65 degrees west of the south. This is the main channel in the auriferous gravels. There may be additional smaller channel- south to the property line. 4. -- SD C9 w - Ce y!cSr!-Y W. PAID Southward from your south.property line the auriferious channel is transitional to.the new era formation which under - The s the Tuscan formation.' contact between these two ations is generally between the 800 and 900 footelevation urs. The new era formation is.very poorly permeable, wells c be drilled into it give extremely root yields and the sand - !g rr� siltstorie.and conglomerate are well compacted and partially too. 917 Ce .9 ed . Water Supply Ground Water Development • Engineering Structures • Agriculture •Slope Stability b 011ier Ga•,lov;c H1ald 5 Drainage • 8rine Hydrology r Electric Logging • Mr^'nq • Environmental Geology Members: Association of Engineerinq GEoloyistt • National Water Well Association. As+i:Lw Inylh..w nr Mlw:ww R Mwr.11n.nvil Cw-:.....e u PAULSEN RESEARCH 8 DEVELOPMENT _ Mr: Roan Logan Logan Mine}-ydr_olo(,y p?d,-_ Geology p40 ? 5" "The extremely loty°.permeability of. the..auriferous channel _ . on your property•is.indinatcd by thb'following conditions observed. a. The i0.: �from.:tl:c-tunneis on the. site even after a winter of much above normal rainfall is only in the order -- _ - of" 1 t0 2 gp�1. onl�� at th ...t. of the auriferous.-. channel . - -..Springs .occtu at; the. Contact. with' the�Tuscan formation. -- c.: 'mere p}lS_sicai-ly;;observecLirr 'th ;..tunnels and c-uts on --- _ yourtol . -are. _ - v.propertythedcandlpartiallancemeraedoncausingeth�em e pa. be.very poorly permeable. and The Tuscan formation overlying.the auriferous"graformation" the `:e+� Era formation.. i:: the primary a,a..er. producing consists of sand, sandstone, of the. area. This formation conglomerate, silt'and sil"tstore, all inter- n i sand and gravel, `layered with severely.. jointed: tuff breccia mudflow beds. " orratione",in .this area is The, slope (dip) .of the•-'"uscan... ,=as measured my�.clf. and 1'.e s, than .lo..to- the: southwest;.: .by b.;�`; h:r Scott : Creely ,and:. sho�+n in= his .re.po.r t "Geology ...Robert.. of the Crovilie-I.,Quadrailg-le." The apparent dip along the line of the ridge" west of Dry Creek (-ice organ Ridge) is very doom dip, thus very.flat. Ground water-will-normally;move this formationP be normally notest. gr. bund water entering Sould ekpected to move anywhere bThis indicated by ;,lie many springs in canyons to the west. th t•! st side of The mangy springs observed and in use along e e Dry Creek Canyon are at the apparent contact between the Tuscan formation. anal .the ei--{e Era Formation. These springs are not _ contir:uous along the .contact but occur most].'y. at small ravines Ione of these tzc' g appear -to be large -having yields only in the order of 1 to 2 tpm.-•xceptional springs such as on the southern edge of your property have yields in the order of 10 gpm. 7. Springs appear -to occur only at the contact between the Tuscan formation and the underlying less permeable ~` Nlevr.Era formation at elevations between 800 and 900 ft. on the.vrest side of Dry Creek Canyon. QED GES. Springs tthese springs are no on, the Logan property.' ferent than other sprinEs.at.the Tuscan -New Era Contact. flow of these springs is now largely masked by heavy s and brush growth in the spring areas. Spring flows SLEY W. PAU!.S to 10 (,'p: i are apparent. �F No. 917 ; No: significant sprin.gs vrere found below. the Tuccan 156 f9lf. Eos 0f CA4� Conc? usions. S o inion that springs along the �;cst side 1. It .iS my: p of Dry Creek Canyon areascan}1formationresult �f surfacingcatrthe on the. edges .of the T Tuscan=;Nevi Era.. Contact. ro osed .Lobari►:irie 2. The niriin; operations of the• :p P. - • tet. intersect -practically none operation will - at-. th'e mos. of the Tuscan formatiOnflowudovm hlorganvrid,;epeveniif effect on' ground crate it .vrer.e a .significant -contributor. to springs dorm canyon from - the Lbgari cline_: 3 i..hi rec1 U?ied..sand and Grave and .silt from .the Loan i•�ine operations `Yuriferousill have ��gravore els . This will willan the existing i.1. place a alhorr water from the Tuscan-;iew �ra coThistwater17i11 to penetrate more directly downward, '( ercolate downward 'to" the 'i+laripmuchsa Slets dimunitiondby p Greek with then outward to DryThis now ..evapo=transpiration lessof eevapoltranspirationswill accrue ' gain in water Econ to;:::the flow of Dry Creek. the 4." It is my opinion that the operation csfsouthLof� they Will have noethect whatever utyninpDry�Creek Canyon. south line of It is also my opinion that due to the relatively 5 inpeIt is a i.:ariposa Formation in Dry Creek Canyon from 1 mile above the Logan operation.of.-the Loganto 2 eMinelwillhhave .property that P absolutely no effect on springs on the east aide o .Dry -Creek .Canyon. your very truly, Wessley ' Paulsen .: 0 GE C 0 T yYESSLEY 1Y. PAULSV `{ No. 917 r . i. 157 I ,. .. .�..•.z�. regi _ : `v. •.iwr' � 1 � as r� 1. Z. J , �. 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