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HomeMy WebLinkAboutBLD2000-00752 Geotechnical Report 4 0 MI WI 'T‘-: 1% Mill/MOL.- lil1111111 • MIMI /MI RINSIO‘41 ikvz.stesunm5--- IIII . GEOTECHNICAL ENGINEERING INVESTIGATION PROPOSED RESIDENTIALwAsHIN STRUCTURE QUILCENE, Wil U N • 6.e.,04-,,t,. c'e-9 ork ' M CIA\Q-c‘, ieCome,-(1 111 . -1,\,..k._ ''-'``%014-s . . 011 -kV-tar-a l 0 S "De,e,,r er.ea lc, Rci 111 Gjei..9- i ,) , U III U III III Mi.'"OeliliTMIS & ASSOCIATES, INC. -- - IKraZan IIIGEOTECHNICAL ENGINEERING•ENVIRONMENTAL ENGINEERING CONSTRUCTION TESTING&INSPECTION III --'- ,-...., 44. 1 t • a • trl, (. , ., . , .. I:1 K. ..a, 04 J ,�b o ..II > 41 • tL7 iii- -i. • -•.' 1.,',4 I• Cr/CZ a is, lam ,, ,•�r ,,, rye `4• -T�r•— ` e ` EOCC' �1PP Q f�4 e ')+►'�* .`-�/ C! :a a� jy 2P' ...� ham >.. <'' I" to ,• �• : -oz.- 1I p - • � �2 Ir 1 ,, .. 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II• • i:�. `II `�•�' •,Y , , / yj� � t 1 t9 Ui_", i ,• O. •! s , .A IIII� II � / . .. •1 iiiii • c _ lifr.? . ...I . ,.r , �� . ff � � I `am ....a...„.4.-,,s- 7.4„50...________/ir p k 4.04.... ..471W.' iirW-.. ...„..e -':J0 ' i 41'11 r _, _1),,, . 11 ,i, -VS 1,1•1.,,--,--•------- ---•.,.0" ,e4reLtr ,.." „1..... 000/.....r., 40 ,, 1\1 ( 0 _0 . ) loot. w ��,?• 1� .F.`•.01 �... -, Imo..,, ....„,„..,,,,,„,,,,,7„,,,,,.. ,�l• ` 7 , ,,,,, , „, 4... _.,. , , . -4 • t t4 4) •a 0 .," ' -1111\qii,- . 1.i,se 4. ---'_f-----:;"•sr.---...... , 1 ilfi r, '• i`` _ `may v X. ,� 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 01 JSF John Scott Fleming Engineering, Inc. P,O. Box 44, Port Angeles, WA 98362 voice: (360) 452-8500, 800-248-6008, fax: (380) 452-3383, email:jsfenq@olypen.com April 16, 2000 Randy Kline Jefferson County Department of Community Development Planning Division 621 Sheridan Street Port Townsend, WA 98368, fax: 360-379-4451 Re: APN 501-041-008 and 501-032-020, Off site drainfield for Frederick & Barbara Hilliard Dear Randy: We request allowance of a utility easement for an off site sewage disposal system on a parcel that is currently under a moratorium for residential development since harvesting timber. The project proponents, Frederick and Barbara Hilliard, have plans to construct a house on assessor parcel number 501-041-008. Soils found on this parcel are either very shallow, 18"to 28", requiring an extremely alternative technological solution (a mound or a sand filter close to the house), or very distant to situate an alternative drainfield solution (a pressurized partial fill, with 40"to 57" of usable soil) requiring 600' of site disturbing trench. However, subsequent soils investigation on the adjacent lot, assessor parcel number 501-032-020, located close to the house site, revealed soil appropriate for a conventional drainfield. Due to elevation, a pump will be required to transport the wastewater from the house to the drainfield. This allows a shallow drainfield trench depth, which maximizes treatment of the wastewater. The soil found in the proposed drainfield area has no restrictive layer to a depth greater than 75" from ground surface, allowing the wastewater to vertically penetrate the ground and disperse. Conversely, the other sites found on the house site parcel have a shallow confining layer, which impedes downward travel of wastewater, thereby concentrating the liquid as it is forced to move horizontally to escape. Please see the attached sod logs and soil test pit map. By allowing a utility easement on parcel 501-032-020, the most appropriate soils are used to provide a higher level of wastewater treatment and disposal, which in turn minimizes the impact to the environment. Sincerely, a ,�w , 'L, e t,. • Jo S. Fleming, P.E. Principal Civil Engineer JA.,� cc: Hilliard sue►*: { file 99143 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 02 7 I t t``q r n 1 c \,..,‘.4 ---_Th E{f i + M 1 11 N F I, v i r 6 gill N ; I> I ;10 :at 51/1 A --7r \ k i 'zeis RI' i ri r— \\ i i t % t r 1r t a' oI r f. t S c1,1 , 7Q97G• r t kg r tNI I t r k 1r _6_ *,t,' 1 a rl . ' 6% I �I' 4` .r C-C1 1 Ilk1 -*-\ r \ i.:al 1.-----Iir7-11:-1 '74" lii144".1 11 if-147 �1 NOL la JOKY \\h,;„ \‘ 1. 1 0 '.l..- ENx N k lig ... . . ...,,,. ..,...;.4,-'ic:/ 4 *It; lop -fp ,),„,... ,„.0,p 4 il 1 4 : g SOH. TEST PIT MAP JOHN=ITT (,moo INC. 3 5 Ji•..J APN 501-041-005 & 501-032-020 t V CUENT: CK & BABA HIWARD P.O. 80Y 44 c; 1055 DEER CREEK ROAD PORT ANGELES, WA 98382 l , QUILCENE. WA 88376 (MO) 432-8500. FAY: (350) 432-3383 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 03 r 1 ; I I M to 2^1 3 SOIL TEST 2 ac ;e PIT #4- \-4 SOIL TEST Z m N ij- 41°" VI 1 PIT 03 Ra77 + Oet7 V PROPOSED DRAINF'IELD & RESERVE OFF SITE IN UI1UIY EASEMENT. cr 04 sok PITS,en N 1 PREFERED OP iON. 0 4 Q R_�- ~ PRESSURIZED DRAINFlELD. g L_ .. _ _ 1..SOIL TEST IP'T #1 IR:275.4. p I 1 I 31 2• I 3% SOIL TEST I 5SOIL TEST .PIT #4 _ err Utz SOIL PIT 'iEclIC ST� R-20° / a SOIL TEST I0 .� PfT /6 R4.20° 0„kikc. ....- in i co ...---SOIL TEST '" L�r3 `~J R=2 3 !-- U 3 r V) r IX,a z, ,� ` .n ' ) -- i s G �1i Z 1s 3 < 6 d SC oTT FL SCALE: +4o 1 WAS4� 1" = 60' , O P FILE SkAPQE '� �0 'I S 143SOkl.QWG 09 �;,' t STESt 0 99143 \-.74 ,,,,.A P *UNAL . Ok f 'II 31 FOR RH EASE , : OPAL StSNATURE ' i �� f i ivoo SHEET OF 1 i 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 04 SITEt PLAN SCALE: T' . eo' 1 LOCATIONS OF SITE FEATURES ARE APPROXIMATE ii 1 1 ''' ''' " ;',/ Z I I^ I � 1 1 ALTERNATIVE DRAINFIELD SITE: I PRESSURIZED DRAINFIEL.D. BUT WITH 550' MORE TRANSPORT PIPE 0 /FT. I OR $2750 MORE THIN PREFERRED LOCATION OFF SITE IN UTIUTY EASEMENTI 1 SOIL 1 SOIL TEST 1 R1•57' R..4tr 362.8' jAPN 50/-032-020 Tw�. s 111•SOIL TEST APN 5O/041-008 1 VPI-�f PIT t' Piz TEST7 R=2 I ' \fre, R 36 1 1I.\SOIL TEST I PIT #11 �' R=17" 1 1 I 1 IN l I i 1 ...'r 15t �,�tfFR 1 .�r tE10? G1 1 1 pR SIC °x " I 1 1 I 1 1 t 04/16I2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 05 ISF John Scott Fleming Engineering, Inc. P.G. Box 44, Port Angeles, WA 98362 voice: (360)452-8500, 800-248-6008, fax: (360) 452-3383, email: jsfeng$Oolypen.com SOIL LOG - March 30, 2000 Client: Fred &Barbara Hilliard 1055 Deer Creek Road Quilcene, WA 98376 Location: Parcel#501-032-020(off-site drainfield, SW corner of lot to east) Excavated: 3-20-00 by George De Vries Excavating Logged: 3-20-00 by John S. Fleming, P.E. Weather Partly cloudy Test Pit 01: Restrictive at 75+" 0-24" Light brown loamy sand,weak granular structure, many medium&coarse roots,wavy boundary from 18-32". Type 3 soil. 24-75" Light yellowish gray gravelly medium sand with very gravelly coarse sand pockets, low penetration resistance with pockets of moderate penetration resistance, few fine& medium roots.Type 2B soil. Test Pit 02: Restrictive at 40" 0-32" Light reddish brown sandy loam, weak subanguiar block structure,few charred roots, common medium&coarse roots,wavy boundary from 30-34".Type 4 soil. 32-40" Light yellowish brown sandy loam, pockets of gravaily medium sand on south end of test pit,common medium&coarse roots,few fine faint light reddish brown mottles, low to moderate penetration resistance,wavy boundary from 32-54". Type 4 soil. 40-77" Gray fine sandy loam, moderately platy,common medium distinct reddish brown mottles, few medium&coarse roots, moderate penetration resistance. Type 4 soil. 77-78" Light gray sandy loam, massive structure, high penetration resistance,Type 4 soil. Test Pit#3: Restrictive at 77+" 0-24" Reddish brown gravelly sandy loam, weak granular structure, many medium roots, irregular boundary from 18-30". Type 4 soil. 24-77" Gray with light yellowish brown gravelly medium sand, single grain structure, low penetration resistance,discontinuous lenses of moderate penetration resistance, very few fine distinct yellowish brown &reddish brown mottles, pockets of common medium roots, highly penetration-resistant lenses at south end of test pit from 24-30". Type 2B soil. Test Pit#4: Restrictive at 41" 0-24" Light reddish brown gravelly sandy loam, weak subangular block structure, few small pockets of charred roots,wavy boundary from 10-30",common medium roots.Type 4 soil. 24-53" Light yellowish brown gravelly loamy sand,weak granular structure, common medium Soil Log for FRED&BARBARA HILUARD,Page 1 of 2 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 06 roots, lenses of few fine faint light reddish brown&Eight gray mottles,wavy boundary from 34-60", common medium distinct reddish brown mottles&moderate to high penetration resistance from 41-53". Type 3 soil. 53-65" Gray fine sandy loam, moderately platy,few medium roots, moderate to high penetration resistance. Type 4 soil. Job Number 99143 Soil Log for FRO&BARBARA MILLIARD,Page 2 of 2 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 07 .SFd►7 John Scott Fleming Engineering, Inc. P.O. Box 44, Port Angeles, WA 98362 voice: (360)452-8500, 800-248-6008, fax: (360) 452-3383, email: jsfeng©olypen.com - SOIL LOG - March 30, 2000 Client: Fred&Barbara Hilliard 1055 Deer Creek Road Quilcene,WA 98376 Location: Parcel#501-041-008 Excavated: 11-15-99 by George De Vries Excavating Logged: 11-15-99 by John S, Fleming, P.E. Weather: Showers, cloudy Test Pit#1: Restrictive at 38-" 0-6" Dark brown loam,weak granular structure, common fine&medium roots, wavy boundary from 3-8". Type 4 soil. 6-38" Brown&reddish brown sandy loam, pockets of charred wood in disturbed areas(old burn pile area),weak subangular blocky structure, common medium roots. Type 4 soil. 38-48" Olive brown sandy loam, moderate subangular blocky structure, moderate penetration resistance, moist, common fine faint yellowish brown& light gray mottles, few fine roots. Type 4 soil. Test Pit#2: Restrictive at 18" 0-3" Dark brown loam,weak granular structure, many fine&medium roots. Type 4 soil. 3-18" Brown sandy loam,weak subangular blocky structure,common medium roots,wavy boundary from 17-27". Type 4 soil. 18-35" Grayish brown gravelly sandy loam, moderate subangular blocky structure, moderate penetration resistance,common medium faint reddish brown&light gray mottles, few medium roots, moist. Type 4 soil. 35-47" Gray sandy loam, massive structure, high penetration resistance, many large prominent light gray&reddish brown mottles. Type 4 soil. Test Pit#3: Restrictive at 20" 0-20" Brown sandy loam,weak subangular blocky structure, common fine&medium roots. Type 4 soil. 20-28" Light grayish brown sandy loam, moderate subangular blocky structure, low to moderate penetration resistance, common fine faint light reddish brown mottles, moist, few fine& medium roots. Type 4 soil. 28-40" Gray silt loam, massive structure, high penetration resistance, many medium distinct reddish brown mottles. Type 5 soil. Test Pit 04: Restrictive at 20" 0-20" Brown gravelly loam, weak subangular blocky structure, common medium roots,wavy boundary from 17-23". Type 4 soil. Soil Log for FRED&BARBARA HILLIARD,Page 1 of 3 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 08 20-30" Light olive brown loam, sticky, moderate subangular blocky structure, pockets of common fine distinct reddish brown&light gray mottles, moist, common medium& coarse roots. Type 4 soil. 30-43" Light brown fine sandy loam, massive structure, medium penetration resistance, many large prominent light gray&reddish brown mottles, very few roots. Type 4 sod. Test Pit#5: Restrictive at 22"(re-excavated old test pit) 0-22" Brown sandy loam,weak subangular blocky structure, common medium roots.To the west, on old face of pit,to the west, reddish brown gravelly sandy loam with moderate to high penetration resistant pocket from 14-28".Type 4 soil. 22-42" Light olive brown sandy loam, moderate subangular blocky structure, common fine very faint light reddish brown&light gray mottles, common fine&medium roots, moist.Type 4 soil. 42-50" Brown sandy barn, massive structure, high penetration resistance, many medium distinct light gray&reddish brown mottles. Type 4 soil. Test Pit 08: Restrictive at 28" 0-28" Yellowish to reddish brown gravelly loamy sand,weak subangular blocky structure, common medium roots, irregular boundary from 20-30".Type 3 soil. 28-36" Light olive brown to light brownish gray gravelly loamy sand to gravelly sandy loam, moderate subangular blocky structure, common large distinct reddish brown to light gray mottles,few medium roots.Type 4 sod. 36-48" Gray loamy sand, moderate subangular blocky structure, moderate penetration resistance, common medium distinct reddish brown mottles.Type 3 soil. Test Pit#7: (Not logged) Additional soils below logged 3-20-00 Test Pit#8: Restrictive at 24" 0-24" Very light reddish brown sandy loam,weak subangular block structure, common fine& medium roots,common fine faint light reddish brown&light gray mottles at 16-24", wavy boundary from 20-34",Type 4 soil. 24-42" Light grayish brown sandy loam, moderate subangular block structure, moderate penetration resistance,common medium faint light reddish brown&light gray mottles, few fine&medium roots.Type 4 soil. 42-64" Gray sandy loam, moderate to high penetration resistance, massive structure,common fine distinct reddish brown mottles.Type 4 soil. Test Pit 09: Restrictive at 40" 0-40" Light brown with light reddish brown&light grayish brown very gravelly sandy loam, weak subangular block structure, common fine&coarse roots,wavy boundary from 34- 45", few lenses of light gray&reddish brown mottles. Type 4 soil. 40-52" Light reddish brown very gravelly coarse loamy sand,weakly cemented, massive structure, moderate to high penetration resistance, common medium faint light gray& reddish brown mottles, Type'IA soil, but not extremely permeable. 52-64" Yellowish brown fine sandy loam, moderately platy, moderate to high penetration resistance, common medium distinct reddish brown mottles. Type 4 soil. Test Pit#10: Restrictive at 57" 0-12" Reddish brown gravelly loamy sand, very weak granular structure,common medium Soil Log for FRED&BARBARA HILLIARD,Page 2 of 3 04/16/2000 11:11 3604523383 JS FLEMING ENGINEER PAGE 09 roots,wavy boundary from 9-29".Type 3 soil. 12-57" Light yellowish brown very gravelly coarse sand with 50%gravelly sandy loam&gravelly medium sand pockets, very weak subangular block structure,common fine&medium roots, pockets of moderate to high penetration resistance. Type 1A soil. 57.68" Reddish brown gravel,moderately cemented,moderate penetration resistance,ferrans. Type 1A soil. Test Pit 011:Restrictive at 17" 0-17" Light brownish gray with reddish brown pockets gravelly sandy loam,weak to strong subangular block structure,common fine&medium roots.Type 4 soil. 17-36' Light brownish gray sandy loam, massive to weak subangular block structure,few fine faint light reddish brown mottled,few fine roots, moist. Type 4 soil_ 36-53" Gray sandy loam, massive structure, high penetration resistance,common medium distinct reddish brown&light gray mottles at 36-38". Type 4 soil. Job Number 99143 Solt Log for FRED&BARBARA HILLIARD.Page 3 of 3 JSF John Scott Fleming Engineering, Inc. P.O. Box 44, Port Angeles, WA 98362 voice: (360) 452-8500, 800-248-6008, fax: (360) 452-3383, email: jsfeng@olypen.com A 6 2000 Randy Kline D1_____ _ . ti!j ., ECEOVE Jefferson County Department of Community Development Planning Division 621 Sheridan Street Port Townsend, WA 98368, fax: 360-379-4451 JEFFERSON COUNTY Re: APN 501-041-008 and 501-032-020, Off site drainfield f ti 12.1arb-Ataolliltigird Dear Randy: We request allowance of a utility easement for an off site sewage disposal system on a parcel that is currently under a moratorium for residential development since harvesting timber. The project proponents, Frederick and Barbara Hilliard, have plans to construct a house on assessor parcel number 501-041-008. Soils found on this parcel are either very shallow, 18" to 28", requiring an extremely alternative technological solution (a mound or a sand filter close to the house), or very distant to situate an alternative drainfield solution (a pressurized partial fill, with 40" to 57" of usable soil) requiring 600` of site disturbing trench. However, subsequent soils investigation on the adjacent lot, assessor parcel number 501-032-020, located close to the house site, revealed soil appropriate for a conventional drainfield. Due to elevation, a pump will be required to transport the wastewater from the house to the drainfield. This allows a shallow drainfield trench depth, which maximizes treatment of the wastewater. The soil found in the proposed drainfield area has no restrictive layer to a depth greater than 75" from ground surface, allowing the wastewater to vertically penetrate the ground and disperse. Conversely, the other sites found on the house site parcel have a shallow confining layer, which impedes downward travel of wastewater, thereby concentrating the liquid as it is forced to move horizontally to escape. Please see the attached soil logs and soil test pit map. By allowing a utility easement on parcel 501-032-020, the most appropriate soils are used to provide a higher level of wastewater treatment and disposal, which in turn minimizes the impact to the environment. Sincerely, 0 �ov wasy a i�.� Jo S. Fleming, P.E. Pri cipal Civil Engineer .,. AL cc: Hilliard file 99143 JSF JEFFERSON COUNTY DEPT. OF COMMUNITY DEVELOPMENT John Scott Fleming Engineering, Inc. P.O. Box 44, Port Angeles, WA 98362 voice: (360) 452-8500, 800-248-6008, fax: (360) 452-3383, email: jsfeng@olypen.com - SOIL LOG - March 30, 2000 Client: Fred & Barbara Hilliard 1055 Deer Creek Road Quilcene, WA 98376 Location: Parcel#501-032-020 (off-site drainfield, SW corner of lot to east) Excavated: 3-20-00 by George De Vries Excavating Logged: 3-20-00 by John S. Fleming, P.E. Weather: Partly cloudy Test Pit#1: Restrictive at 75+" 0-24" Light brown loamy sand, weak granular structure, many medium &coarse roots, wavy boundary from 18-32". Type 3 soil. 24-75" Light yellowish gray gravelly medium sand with very gravelly coarse sand pockets, low penetration resistance with pockets of moderate penetration resistance, few fine & medium roots. Type 2B soil. Test Pit#2: Restrictive at 40" 0-32" Light reddish brown sandy loam, weak subangular block structure, few charred roots, common medium &coarse roots, wavy boundary from 30-34". Type 4 soil. 32-40" Light yellowish brown sandy loam, pockets of gravelly medium sand on south end of test pit, common medium &coarse roots, few fine faint light reddish brown mottles, low to moderate penetration resistance, wavy boundary from 32-54". Type 4 soil. 40-77" Gray fine sandy loam, moderately platy, common medium distinct reddish brown mottles, few medium &coarse roots, moderate penetration resistance. Type 4 soil. 77-78" Light gray sandy loam, massive structure, high penetration resistance. Type 4 soil. Test Pit#3: Restrictive at 77+" 0-24" Reddish brown gravelly sandy loam, weak granular structure, many medium roots, irregular boundary from 18-30". Type 4 soil. 24-77" Gray with light yellowish brown gravelly medium sand, single grain structure, low penetration resistance, discontinuous lenses of moderate penetration resistance, very few fine distinct yellowish brown & reddish brown mottles, pockets of common medium roots, highly penetration-resistant lenses at south end of test pit from 24-30". Type 2B soil. Test Pit#4: Restrictive at 41" 0-24" Light reddish brown gravelly sandy loam, weak subangular block structure, few small pockets of charred roots, wavy boundary from 10-30", common medium roots. Type 4 soil. 24-53" Light yellowish brown gravelly loamy sand, weak granular structure, common medium Soil Log for FRED&BARBARA HILLIARD, Page 1 of 2 roots, lenses of few fine faint light reddish brown & light gray mottles, wavy boundary from 34-60", common medium distinct reddish brown mottles & moderate to high penetration resistance from 41-53". Type 3 soil. 53-65" Gray fine sandy loam, moderately platy, few medium roots, moderate to high penetration resistance. Type 4 soil. Job Number 99143 Soil Log for FRED&BARBARA HILLIARD, Page 2 of 2 2 rya (� nn 2 D JSi JEFFERSON COUNTY John Scott Fleming Engineering, Inc. DEPT. OF COMMUNITY DEVELOPMENT P.O. Box 44, Port Angeles, WA 98362 voice: (360) 452-8500, 800-248-6008, fax: (360) 452-3383, email: jsfeng@olypen.com - SOIL LOG - March 30, 2000 Client: Fred & Barbara Hilliard 1055 Deer Creek Road Quilcene, WA 98376 Location: Parcel#501-041-008 Excavated: 11-15-99 by George De Vries Excavating Logged: 11-15-99 by John S. Fleming, P.E. Weather Showers, cloudy Test Pit#1: Restrictive at 38-" 0-6" Dark brown loam, weak granular structure, common fine & medium roots, wavy boundary from 3-8". Type 4 soil. 6-38" Brown & reddish brown sandy loam, pockets of charred wood in disturbed areas (old burn pile area), weak subangular blocky structure, common medium roots. Type 4 soil. 38-48" Olive brown sandy loam, moderate subangular blocky structure, moderate penetration resistance, moist, common fine faint yellowish brown & light gray mottles, few fine roots. Type 4 soil. Test Pit#2: Restrictive at 18" 0-3" Dark brown loam, weak granular structure, many fine& medium roots. Type 4 soil. 3-18" Brown sandy loam, weak subangular blocky structure, common medium roots, wavy boundary from 17-27". Type 4 soil. 18-35" Grayish brown gravelly sandy loam, moderate subangular blocky structure, moderate penetration resistance, common medium faint reddish brown & light gray mottles, few medium roots, moist. Type 4 soil. 35-47" Gray sandy loam, massive structure, high penetration resistance, many large prominent light gray& reddish brown mottles. Type 4 soil. Test Pit#3: Restrictive at 20" 0-20" Brown sandy loam, weak subangular blocky structure, common fine & medium roots. Type 4 soil. 20-28" Light grayish brown sandy loam, moderate subangular blocky structure, low to moderate penetration resistance, common fine faint light reddish brown mottles, moist, few fine & medium roots. Type 4 soil. 28-40" Gray silt loam, massive structure, high penetration resistance, many medium distinct reddish brown mottles. Type 5 soil. Test Pit#4: Restrictive at 20" 0-20" Brown gravelly loam, weak subangular blocky structure, common medium roots, wavy boundary from 17-23". Type 4 soil. Soil Log for FRED&BARBARA HILLIARD, Page 1 of 3 20-30" Light olive brown loam, sticky, moderate subangular blocky structure, pockets of common fine distinct reddish brown & light gray mottles, moist, common medium & coarse roots. Type 4 soil. 30-43" Light brown fine sandy loam, massive structure, medium penetration resistance, many large prominent light gray& reddish brown mottles, very few roots. Type 4 soil. Test Pit#5: Restrictive at 22" (re-excavated old test pit) 0-22" Brown sandy loam, weak subangular blocky structure, common medium roots. To the west, on old face of pit, to the west, reddish brown gravelly sandy loam with moderate to high penetration resistant pocket from 14-28". Type 4 soil. 22-42" Light olive brown sandy loam, moderate subangular blocky structure, common fine very faint light reddish brown & light gray mottles, common fine & medium roots, moist. Type 4 soil. 42-50" Brown sandy loam, massive structure, high penetration resistance, many medium distinct light gray& reddish brown mottles. Type 4 soil. Test Pit#6: Restrictive at 28" 0-28" Yellowish to reddish brown gravelly loamy sand, weak subangular blocky structure, common medium roots, irregular boundary from 20-30". Type 3 soil. 28-36" Light olive brown to light brownish gray gravelly loamy sand to gravelly sandy loam, moderate subangular blocky structure, common large distinct reddish brown to light gray mottles, few medium roots. Type 4 soil. 36-48" Gray loamy sand, moderate subangular blocky structure, moderate penetration resistance, common medium distinct reddish brown mottles. Type 3 soil. Test Pit#7: (Not logged) Additional soils below logged 3-20-00 Test Pit#8: Restrictive at 24" 0-24" Very light reddish brown sandy loam, weak subangular block structure, common fine & medium roots, common fine faint light reddish brown & light gray mottles at 16-24", wavy boundary from 20-34". Type 4 soil. 24-42" Light grayish brown sandy loam, moderate subangular block structure, moderate penetration resistance, common medium faint light reddish brown & light gray mottles, few fine& medium roots. Type 4 soil. 42-64" Gray sandy loam, moderate to high penetration resistance, massive structure, common fine distinct reddish brown mottles. Type 4 soil. Test Pit#9: Restrictive at 40" 0-40" Light brown with light reddish brown & light grayish brown very gravelly sandy loam, weak subangular block structure, common fine&coarse roots, wavy boundary from 34- 45", few lenses of light gray& reddish brown mottles. Type 4 soil. 40-52" Light reddish brown very gravelly coarse loamy sand, weakly cemented, massive structure, moderate to high penetration resistance, common medium faint light gray& reddish brown mottles. Type 1A soil, but not extremely permeable. 52-64" Yellowish brown fine sandy loam, moderately platy, moderate to high penetration resistance, common medium distinct reddish brown mottles. Type 4 soil. Test Pit#10: Restrictive at 57" 0-12" Reddish brown gravelly loamy sand, very weak granular structure, common medium Soil Log for FRED&BARBARA HILLIARD, Page 2 of 3 roots, wavy boundary from 9-29". Type 3 soil. 12-57" Light yellowish brown very gravelly coarse sand with 50% gravelly sandy loam & gravelly medium sand pockets, very weak subangular block structure, common fine & medium roots, pockets of moderate to high penetration resistance. Type 1A soil. 57-68" Reddish brown gravel, moderately cemented, moderate penetration resistance, ferrans. Type 1A soil. Test Pit#11: Restrictive at 17" 0-17" Light brownish gray with reddish brown pockets gravelly sandy loam, weak to strong subangular block structure, common fine & medium roots. Type 4 soil. 17-36" Light brownish gray sandy loam, massive to weak subangular block structure, few fine faint light reddish brown mottled, few fine roots, moist. Type 4 soil. 36-53" Gray sandy loam, massive structure, high penetration resistance, common medium distinct reddish brown & light gray mottles at 36-38". Type 4 soil. Job Number 99143 Soil Log for FRED&BARBARA HILLIARD, Page 3 of 3 04/16/2090 11:16 3694523383 JS FLEMING ENGINEER PAGE 01 JSF IECEOWED John Scott Fleming Engineering, Inc. P.O. Box 44, Port Angeles, WA 98362 voice: (360) 452-8500, 800-248-6008, fax: 360) 452-3363, email:jsfeng@olypen.cbm JEFFERSON COUNTY .566 tN F44!+g O it, DEPT. OF COMMUNITY DEVELLIKIEVIT16, 2000 Randy Kline Jefferson County Department of Community Development Planning Division 621 Sheridan Street Port Townsend, WA 98368, fax: 360-379-4451 $'LI5 PA Re: APN 501-041-008 and 501-032-020, Off site drainfield for Frederick & Barbara Hilliard Dear Randy: We request allowance of a utility easement for an off site sewage disposal system on a parcel that is currently under a moratorium for residential development since harvesting timber. The project proponents, Frederick and Barbara Hilliard, have plans to construct a house on assessor parcel number 501-041-008. Soils found on this parcel are either very shallow, 18" to 28", requiring an extremely alternative technological solution (a mound or a sand filter close to the house), or very distant to situate an alternative drainfield solution (a pressurized partial fill, with 40"to 57" of usable soil) requiring 800'of site disturbing trench. However, subsequent soils investigation on the adjacent lot, assessor parcel number 501-032-020, located close to the house site, revealed soil appropriate for a conventional drainfield. Due to elevation, a pump will be required to transport the wastewater from the house to the drainfield. This allows a shallow drainfield trench depth, which maximizes treatment of the wastewater. The soil found in the proposed drainfield area has no restrictive layer to a depth greater than 75" from ground surface, allowing the wastewater to vertically penetrate the ground and disperse. Conversely. the other sites found on the house site parcel have a shallow confining layer, which impedes downward travel of wastewater, thereby concentrating the liquid as it is forced to move horizontally to escape. Please see the attached soil logs and soil test pit map. By allowing a utility easement on parcel 501-032-020, the most appropriate soils are used to provide a higher level of wastewater treatment and disposal, which in turn minimizes the impact to the environment. • S. FL4i Sincerely, O w°c*Asb 'Z II •d..,,, . ___ ,. ‘mrshit 41;,, 10 -- Jo S. Fleming, P.E. 1111r "cis • 0: Principal Civil Engineer : � i , cc: Hilliard C::::=111111111111111 40. file 99143 FAX cof f trt t1Ml. 3bo 14 S 3`03 04/14/2E090 16:57 3E045233E3 JS FLEMING ENGINEER PAGE 01 JSF John Scott Fleming Engineering, Inc. P.O. Box 44, Port Angeles, WA 98362 voice: C360) 452-8500, 800-248-6008, fax: (360) 452-3383, email: isfen9@olypen.com - TRANSMITTAL - Job #: 99143 April 14, 2000 To: Fred & Barbara Hilliard 1055 Deer Creek Road Quilcene, WA 98376 Attention: Barbara From: John S. Fleming, P.E. We are transmitting the following by means of: (X)-attached ( )-hand carried ( )-fax# 1-360-765-3403 (copy in mail, too) Regarding Project: Soils information for APN 501-032-020 & 501-041-008 Copies Pages Description 2 2 Soli log for APN 501-032-020 2 3 Soil log for APN 501-041-008 2 1 Soil test pit map Comments: For your use in asking the County if an off-site drainfieid easement would be allowed on the r with design whenyougive me the o- has a moratorium. I am readyto pr oceed. the des parcel that P 9 go- ahead. Please call if you have any questions. cc: file