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HomeMy WebLinkAboutGeologic Log of Well - GEO Geological Review - 1/6/2005 FICMINSUN NOBLE, INC t "NO WA-MF9 I,M W M0NMF:N'TAL.C �-OCiIbT 5gI D Cpw>-�CG MTRrmr&T WEST TAM7MA,WAAHIt407 7N S34ff7 C2VM 479-771 1 January 6, 1995 Dave Bayley bison County Title, Its;. 130 Nest Railroad Shelton WA, 99594 SUBIECT: Geologic togs of tj It water well drilled by Acadia Drilling at your site near Island Lake, Umn County, Washingto Dear Mr, Bayley: At your request we have monivaro the dtilling of the first wetl drilled on the.Island Lake site in Mason County. Our etlbrt.inr:luded observation and umtpling of dr U cuo of the ation on e drill rig response to the geologic conditioner encountered, and rnterp i gained to describe the subsurface geology of the site. The work was fully coordinated with Arcadia Dti&g Co. of Shelton Washington. The materials encouritevedd are dis swd below and an presented graphically in the accompanying drawing: 4 From land surface to 14 dark colored$ravel (SM black and red)with abundant Wbrown, gilt and fine^sand matrix was encounters This material was non-setuirated Rnnd non winpacUxL Below 14 Feet, a U&brown Eire to coarse sand(6(r/6) and gravel(40%)with.abundant silt matrix wait drllled. Thin unit, wWc l persists to 26 feet, could be a near tes'minus till. The unit is only slightly Mre compacted than the overlying material but has aigniHcankly more fine grained matrix material. The near surace occurrence coupled with the power of an air rotary 4makes estitnatex of comF action dilllcult. The material is saturated belowv 16 feet and exhibits noticeably more compaction below 24 feet. 6 At 26 feet a unit condstiOg of dark colorled gravel to 1-inch diameter(6(r°lo) and coarse black sand with some finii to medium sand(40°/o)was penetrated. This uuiGt curtains a rrifill a �i � ' .,.. .. a:a♦ . .t ;v r�tiili 'was A p t toeIIeCiSe the solar RigriBturC 1 1i1i.t.'V`A KL� 'L:l t�Y�ia..'A4O Sai►�y� s w of the cuttings at the drill rig. The gravel and sand colWmues to 39 f ect. r Brawn coarse Band with some mcdium sand and occasional pea gravel sized clasts was drilled from 38 to 43 fe& 0 From 43 to 58 feet the material is gray to black gravel to 4-inch diameter as ludicacted by P_ 0a NIUSNX BoM * P%Iau5 ; -Tpcl 9e) -- Q i rD the mature on&Acd.,grtt rd dmrd& The gravel comprisi about 70% of the unit with the remaining 30% being colored coarso sand.. The unit has a minor component of ugm-brown silt admix. T unit grades to a domirmt Warm sand (60%)b twoen 48 anti 55 riot. The minor silt persists W-oughout the unit. • At S 3 fset a fine to medium black sand with wme$ravel.arid a gmy"brown silt mattbt exists. The fine send conzppnerrt increases with depW and the amount of Otavel decreases with depth. The =d extender to 73 feet. a b'rom 73 to 83 feet a clean colt -ed gravel (blact; gray, and,green with some white and light-Bred) 1-i ch eter (8�%)with coarse to fine gray sand(200%)was encountered drilling from 3 to 89 feet encountered dark-brown medium to c;oarae sand to�1-inch V/n - ($49%) atVd mall gravelt ) 0 At $9 feet dark-•gmy, black and green gravel to 4-inch dho r (700/0)with#te to coarse wand (3(r/.) and som, tom-brown silt admix was drilled- The gmvels persist to 98 ae with occaasianat thin inte bads of sand. 0 Between 9$ and 119 feet the sediments are a complex 1nftrbeddiug�kto ah1w similar fine to coarse sand gravel, sand and gravel, and medium sanddeposits. mineralogy and are likety reflecting changes in the same d.eposhional environment. +� Below 118 lit dark brown, fine to medium silty sand with light bro"sit matrix was penetrated and persisted to 1.34 feat, which was the total depth drilled. The 3hheMowest water cbmved dctr. drilling is at a depth of approximately 16 feet bs1Qw land surface. This shallow system is Vparendy perched above the s&y �6�t$cowe compacted water level encountered between 24 and 26 f et- The gravel penetrated 30 feet below land surface. The pre rilling water level measured on Monday,Deember 19 with the casing at a depth.of 78 feet was 28.5 feet below land surfue. This strongly sugge9tathO the ground water system below 26 feet is isolated from the system penetrated between 16 and 24 fat. 1f interpretation of the hydrogeologic conditions regarding sped land use quesdoos becomes necessary at a later date place contact us with the specific questions to be addressed. Thank you for the opportunity to participate in your project., filer;►truly youru, F. b6chael Krautkranaer, Principal Hydrageologist Our Ref.: 64,39 " tG 0 L 1�J � Z?1f'P� G Ely M6AP �'S�f� � � . ��� -�:a,ta�,� z�Af'����` -�- I~"YII�S��r Coc�r���'�� �'r�`��, _��N c ► r ; , rl, ry A, I t r it r ,( l{'vitJnr ,, {ra 4 sv-A Ck Sail.f °�Gy'd i/Li !`S7IU7vr c ': (,tGN�'~tr3x'�u,�. i►t 4 7�v C��t+`5., . l st a a�.;a � `'• f1Milr"'7"4 Z 9 Ael`• / 1 l�yl?C �G�©I� , A/ttck 3�af- 4"&L 12-t9-t'I :';�.;,c!„� ,D"A f �'���"dare:li,:, c•:rr G�d� lA'rtJP n�' a i"i►�E. rN ed Cl l;0�04: -•38 � � Glr►6� 4CCLR S/Ot! h vtlP� i�f !u ti • � �QI'�ltlil a:.OA/`S� ,$LtVI L'[l! r • f_ / �c ,o ti f v �91 1 f lll��c VIt f /0 %t1GK ��Q �LiJi�!t � 1 , 1 O 6 1¢9/�TX/K . nx °S 4u erarsP Sda!rX PGCk� t�r:• t�"+tafEE� LJf3�/er-a A� SIL 7 ll� ini`X. �A..1 L1t1°Gt / L V` a, tslT" �'QV=:1 CANj{"�r►c�iit 5tll!�'Pd7�'+�.1 IYtMMOA SAW / ! �^ d�00 Q>�►t9�irf dl ►'JC:✓ r�pst?5 wtTFf �'••� r� ,�(l� ,jam � rQ / t' (Alipt) iDARK grauM f�fff:Ylalt f cer 9e. S ` °,) 1 / r �•t ' � '�• ,�'hr� �'a� � aC [.f�11��'�°C.NI rYxt/�.! r`v ti'"YNGR. �rl�, ..r/a�`�'i r�efEl�' �c�z�"�@.. a pid Tom e, 11if C -,1rocs I Dp p"�'•°•• �t�r't1d-1119� r�Q+��V'3 �r�r'K-�?nPwF� CD�r.Sla Tf t�''it� �ltA•tDi �P.4iS ct,►i� �r''1st/E1.. �PGfS Urlirs ,'r�t"lyd t klr�� 5d�ca re.,er At.- C 4tv dA �,.qL, r`utvt si,� sit+ , sif7` gar e�x rS � �'- bra ct7dt 6 iiJ l`a.r•4+ cI itr 7 ,s IVY � 0 � 3 'I �90I�I '8 hIOSltitl10xI JRId09 fi� 0 96 90 Z 0 GEOLOGIC LOG OF WELL DRILLED NEAR ISLAND LAKE T 20 N/R 4 W, SECT. 1 , BY ARCADI,A DRILLING 12/16/94 AND 12/19/94 FOR DAVE BAYLEY - MASON COUNTY TITLE, INC Land Su ace Dark gravel gray, black, red) with abundant light brown silt and -�=o fine sand matrix. _-a_j%: 14 Light brown, fine to coarse sand (60%) and gravel (40%) with abundant 20 - % - silt matrix. Amount of matrix and compaction is greater from 24 -°y to 26 feet. Saturated below 16 feet. --- 26 AWL = 28.5 Jr - -o- Dark grave to 1-inch (60`.!6) with coarse black sand and some fine to - 12-19-94 _0.. 0—` medium sand (40%) and a small amount of gray-brown silt/clay matrix. 38 40- Brown coa se sand with some medium sand and occasional pea gravel. 43 :0 Gray to black gravel to 4-inch (70%) with dark colored coarse sand (30%) °-'.: and some light-brown silt matrix. Grades to 60% coarse sand and -0 40% gravel with light-brown silt admix between 48 and 55 feet. 60 - Black, fine to medium sand with some gravel and gray-brown silt matrix. =o Fine sa d component increases and gravel decreases with depth. 73 Clean, dark gravel (black, gray, and green) to 1-inch (80%) with coarse 80 _ ;° to fine gray sand (20%;I. .•a:o 83 Dark brown medium to coarse sand (80%) with 20% gravel to 1-inch. 89 Dark gray, black and green gravel to 4-inch (70%) with fine to coarse 98 sand (30%) and some light-brown silt admix. 100 - Alternating layers of dark--brown coarse to fine sand beds and gravel beds. '...o. Lower units include medium sand layers. 120- _ 118 Dark brown fine to medium silty sand. Silt matrix is lighter brown. 130 Total depth. 140- 6439 ROBINSON & NOBLE. INC. Y DALE TAHJA. R - S - ON—STTE SEWAGE SYSTEM DESIGNS Phone - (206) 426-5940 W 2450 Deegan Rd . W. Shelton. WA 9858-1 METHOD II . Date : January 9 , 1995 Owner : David C . Bayley° j'1n Par cel=: 42001<1400020 Ae, /V �/ • 0�11�02 64� Size : 1 . 12 acres /% �s �`S paw (A) The extremely gravelly soil on the property is a Type A . Three test holes were excavated to depths of serer. feet , with no signs of ground water . (B) Due to the extremely gravelly soils drainage presentiy runs vertical and remains on the property. The storm water generated by roofs will be collected , treated and disposed of through dry wells . The storm water generated by paved road and parking surfaces will be conveyed by open ditches then treated and disposed of through a retention pond . (C) The treatment provided by the storm water and on-site sewage systems is adequate to prevent any public health impact . (D) All setbacks from property lines and wells are met or exceeded . (E) The domestic water will be provided by a newly developed public water system meeting all County and State regulations (well referenced below) (F) The property is generally flat that has recently been logged and cleared of most trees and brush. Attached is a copy of a geology report that was developed during the recent drilling of one neighboring well 230 feet southwest of the projects proposed drainfield and reserve area. (G) The annual rain fall is 60 inches a year with an- average temperature of 55 degrees (F) . (H) There is no long range plans for the availability of public sewer in this area. continued - h David C. Bayley Method II Page Two (I) The present use of this land is vacant land that has been recently cleared for development . The anticipated use is for multi-family housing which is consistent with the present surrounding high density developments . (J) The growth patterns is from rural to suburban housing in this area . (K) There is a 100% reserve area available on the site for the replacement or addition to the on-site sewage system. (L) The anticipated sewage flow for this 1 . 12 acre parcel is 960 gallons per day. This equates to 857 gallons per acre per day . According to State WAC 248-96-090 , the minimum land area required under these soil and site conditions equates to 900 gallons per acre per day. (M) This development complies with all existing county regulations . (N) An alternative on-site sewage system utilizing sand lined trenches and pressure distribution is the proposed method of treatment and disposal . This type alternative system produces effluent that meets Treatment Standard Two , which is a requirement according to the Mason County Department of Health Services ' Design and Construction Standards for Sewage Disposal Systems (Revised 1/3/95) . (0) The proposed development meets and exceeds the Sate and County Minimum Land Area Requirements and On-site Sewage System Design criteria. This proposal is also consistant with other county ' s policies on minimum land area requirements in extrememly aquifer sensative areas (Thurston County - Garry Duvall 786-5455) .