HomeMy WebLinkAboutMINDYER MANORS BLK 2 LT 2  ;~ ~ MUNICIPALITY OF ANCHORAGE ',.= / DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION ~ ENVIRONMENTAL ENGINEERING DIVISION 825 L Street - Anchorage, Alaska 99501 Telephone 264-4720 ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT NAME IPHONE (~ ("f~'~ ~EW LEGAL DESCRIPTION LOCATION NO, OF ~EDROOMS ~ Absorption area Dwelling I PERMIT NO. DISTANCE TO: ( ~~ (00 ~ b~ . Z Man ufactu ret Materia~ No. of c~partments Liq. ca~Y~n~llons IF HOME.DE: Inside length Width Liquid depth ~ Well , Foundation ~ Nearest lot line PERMIT NO, ~''.' '~ No. of lines~ I Length o~,each line~ ~ ~[¢' Total length of.~e~ Trench;i~h_ t ii;ohos Distance between Ii ~ Top of tile to finish grade Material beneath tile ~ ~ ~~m=..'~es Total effectiv., ab ken,th ~idth ~epth P[~MIT ~O~ ~ ~ DISTANCE TO: Building foundation Sewer line Septic tan~ [OO Absorption area(si OTHE~ PIPE MATERIALS SOiL TEST RATING .'L.LL [, ~ AP~~ DATE LEGAL 72-013 (R~ ]178) F'ERMIT NO. ,' 8i0i07 ) RPF'L I CANT LOC:AT I r~N LEGAL TOD[:, YOUNGS V l R G 0 L~_B~_ MINDYER MHNLIF...~ PO,.,°rr'"_,., 4-;-:'482 flNCHORRGE .....9ccRF~q. g45-±943 LOT SIZE 90000 SQIJRRE FEET TYF'E OF qAIL flB=,UF..F] ILN =T=.TEM TF4EN_.H ~J't~. )~)-i~/ MflXIMUM NUME:ER ElF BEDROOMS =_.~.' =,UIL RR'FtNG ,::SQ FT,."BF.:)= ~.=~°°% THE REQUIRED SIZE OF ]"HE SOIL flBSORF'TtQN _-z=,TEM IS: THE LENGTH DIMENSION IS THE LENGTH (IN FEET) OF THE TRENCH OR DRRINFIELD. THE DEPTH OF A TRENCH OR PIT IS THE DISTANCE BETWEEN THE SURFACE OF THE GROUND AND THE BOTTOM OF THE EXCAVATION (IN FEET). THERE IS NO SET'WIDTH FOR TRENCHES. ~ · THE GRAVEL DEPTH'IS THE MINIMUM DEPTH OF GRAVEL BETWEEN THE OUTFRL. L PIPE AND THE BOTTOM OF THE EXCAVATION (IN FEET). RE_.PUNz, IBILIT~ TO INFOF.:M THIS DEPflRTMENT [, F.'ING THE PEF.:MIT HFFLI_.~NT HflS THE , INSTALLRTtON INSPERTIONS OF' RNY WELLS RDJRF:ENT TO THIS PROPERTY RN[:, THE NUMBER OF RESIDENCE'=; THRT THE WELL WILL SERVE. Ti--.~C, ,{ '=Z ;:, I t'-~SF'EE: l' I C, 1~4'---5 t-IF.~' F RE,g.~L~ Z BACKFILLING OF ANY SYSTEM NITHOUT FINAL INz, FE_.TION AND APF'ROVRL E:Y THIS [:,EPRRTMENT I.,.tILL BE SUE:JEE:T TO PF.'ESECJTION. MINIMUM DISTANCE BETWEEN fl NELL AND ANY ON-SITE SEWAGE DISPOSAL SYSTEM IS ~00 FEET FOR A PRIVATE NELL OR ±50 TO 200 FEET FROM A PUBLIC NELL DEPENDING UPON THE TYPE OF PUBLIC WELL. MINIMUM DISTANCE FROM A PRIVATE WELL TO A PRIVATE SEWER LINE IS 25 FEET AND TO A COMMUNITY SEWER LINE IS 75 FEET. NELL LOGS ARE REQUIRED AND MUST BE RETURNED TO THE DEPAR'rMENT NITHIN ~0 DAYS OF THE WELL COMPLETION. OTHER REQUIREMENTS MAY APPLY. SPECIFICATIONS AND CONSTRUCTION DIAGRAMS ARE AVAILABLE TO INSURE PROPER INSTALLATION. F'ER~'~ I T E:=-::F' I F:ES [:.F, L-E~'-IE:EF...' _::..1 .. "t La:E:::L I CERTIFY THAT 1: I tim FAMILIAR WITH THE REQUIREMENTS FOR ON-SITE SEWERS fiND WELLS RS SET FORTH BY THE MUNICIPALITY OF ANCHORAGE. 2: I NILL INSTALL THE SYSTEM IN ACCORDANCE WITH THE CODES. ~: I UNDERSTAND THAT THE ON-SITE SEWER SYSTEM MAY REQUIRE ENLARGEMENT IF 'THE RESIDENCE IS REMODELED TO INCLUDE MORE THAN ~ BEDROOMS. .... V4. 0 DEPARTMENT OF HEALTH AND ENVIRONMENTALi'PROTE~:TION a 825 "L" STREET t ~ ANCHORAGE, ALASKA 99501 :' i GEbRG£ M. ~IJLLIVAN,' ': . //,"~ , MAYOR December 31~ 1980 Todd Youngs Post Office Box 4-2482 Anchorage, Alaska 99509 Permit # 800186 Subject: Lot 2 Block 2 Mindyer Manors Subdivision A permit issued by this department for well and/or sewer system has expired as of this date. Permits are issued on a calendar year basis, as stated on the permit, by authority of Municipal Ordinance. If you have drilled the well, a well log should be sent to this department to document the installation date. If an engineer inspected the installation of the on-site sewer system, please have them send us the as-builts for our files. If there are any further questions, please call this office at 264-4'720. Sincerely, // /,~ Les N. Buchholz, R.S./ /. Senior Environmental ~p~cial ist LNB/ljw enc: Copy of Permit SWP/057 PERMIT NO. APPLICANT LOCATION LEGAL TODD YOUNGS VIRGO AVE L2B~,MINDYER MANORS PO BOX 4-2482 LOT SIZE ~49-56~4 ~0000 SQUARE FEET TYPE OF SOIL ABSORPTION SYSTEM IS: TRENCH MAXIMUM NUMBER OF BEDROOMS SOIL RATING THE REQUIRED SIZE OF THE SOIL ABSORPTION SYSTEM IS: [:.EPTH= 10 LE~4mSTH= ~8 ORA'-ZEL [)EPTH= 5 THE LENGTH DIMENSION IS THE LENGTH (IN FEET) OF THE TRENCH OR DRBINFIELD. THE DEPTH OF A TRENCH OR PIT IS THE DISTANCE BETWEEN THE SURFACE OF THE GROUND AND THE BOTTOM OF THE E~GAVBTION (IN FEET). THERE IS NO SET WIDTH FOR TRENCHES. THE GRAVEL DEPTH IS THE MINIMUM DEPTH OF GRAVEL BETWEEN THE OUTFALL PIPE AND THE BOTTOM OF THE EXCAVBTION (IN FEET). F.:E;~gLI IREO SEF'T I C TA~K: $ I 2E= ~ OE~k~ GN-1L~ E~-~S PERMIT APPLICANT HAS THE RESPONSIBILITY TO INFORM THIS DEPARTMENT DURING THE INSTALLATION INSPECTIONS OF 8NY WELLS ADJACENT TO THIS PROPERTY AND THE NUMBER OF RESIDENCES THAT THE WELL WILL SERVE. T~4Cm (2) I ~-~SP~£:TIO~S ARE REQUIRE[:. BACKFILLING OF ANY SYSTEM WITHOUT FINAL INSPECTION AND APPROVAL BY THIS DEPARTMENT HILL BE SUBJECT TO PROSECUTION. MINIMUM DISTANCE BETWEEN A WELL AND ANY ON-SITE SEWAGE DISPOSAL SYSTEM IS t00 FEET FOR A PRIVfiTE HELL OR 150 TO 200 FEET FROM A PUBLIC WELL DEPENDING UPON THE TYPE OF PUBLIC WELL. MINIMUM DISTANCE FROM A PRIVATE HELL TO A PRIVATE SEWER LINE IS 25 FEET AND TO A COMMUNITY SEWER LINE IS 75 FEET. WELL LOGS ARE REQUIRED AND MUST Be RETURNED TO THE DEP~RTMENT HITHIN ~0 DAYS OF THE WELL COMPLETION. OTHER REQUIREMENTS MAY APPLY. SPECIFICATIONS AND CONSTRUCTION DIAGRAMS ARE AVAILABLE TO INSURE PROPER INSTALLATION. RES D EC~E~-IBER .5.: 1 .. l~8E~ I CERTIFY THAT i: I AM FAMILIAR WITH THE REQUIREMENTS FOR ON-SITE SEWERS 8ND HELLS AS SET FORTH BY THE MUNICIPALITY OF ANCHORAGE. 2: t WILL INSTALL THE SYSTEM IN ACCORDANCE WITH THE CODES. 2: I UNDERSTAND THAT THE ON-SITE SEWER SYSTEM MAY REQUIRE ENLARGEMENT IF THE RESIDENCE IS REMODELED TO INCLUDE MORE THAN ~ BEDROOMS. SIGNED: ~~~~~___ ~ ISSUED BY .......... DATE .... V4. 0 825 "L" STREET ANCHORAGE, ALASKA 99B01 (907) 264 4111 C-EO!TG, E M. $!JLLI\;AN, DEPz',R¥,*,,!E,"~; ? i!E.s,L.TH A¢,~D E~'!vlRONME;~IAL PROTECTION December 31, 1979 Todd Youngs Post Office Box 4-2482 Anchorage, Alaska 99509 Permit ~ 790048 Subject: Lot 2 Block 2 Mindyer Manors Subdivision A permit issued by this department for well and/or sewer system has expired. Permits are issued on a calendar year basis, as stated on the permit, by authority of Municipal ordinance. If you have drilled the well, a well log should be sent to this department to document the installation date. If an engineeJ has inspected the installation of the on-site sewer system, please have them send us the as-builts for our files. If there are any further questions, please contact this office at 264-4720. Sincerely, LNB/ljw enc: Copy of Permit PERMIT NO. RPPLICRNT LOCRTION LEGRL TODD YOUNGS VIRGO RVE L2 B2 MINDYER MBNORS S?D PO BON 4-2482 LO'F SIZE 349 563:4 9EIE1E10 SQLIRRE FEET TYF'E OF SOIL 8BSORBTION SYSTEM IS: TRENCH MRXtMUM NUMBER OF BEDROOMS SOIL RRTING (SQ FT,-.'BR)= ;.225 'THE REQUIRE[:, SIZE OF THE SOIL 88SORPTION S',?STEM IS: THE LENGTH DIMENSION IS THE LENGTH (IN FEET) OF THE TRENCH OR DRRINF!EL.D. THE DEPTH OF R TRENCH OR PIT IS THE DISTANCE BETWEEN THE SURFRCE OF THE GROUND AND THE BOTTOM OF THE EXCRVATION (IN FEET). THERE IS NO SET WIDTH FOR TRENCHES. THE GR~VEL DEPTH IS THE MINIMUM DEPTH OF GRRVEL. BETWEEN THE OUTF8LL PIPE RND ]'HE BOTTOM OF THE EXCRVATION (IN FEET). PERMIT APPLICRNT HRS THE RESPONSIBILITY TO INFORM THIS DEPARTMENT DURING THE INSTALLRTION INSPECTIONS OF ANY WELLS ADJRCENT TO THIS PROPERTY RND THE NUMBER OF RESIDENCES THAT THE WELL. WILL SERVE. BACKFILLING OF ANY SYSTEM WITHOUT FINAL. INSPECTION RND APPROVRL E:Y THIS DEPARTMENT WILL 8E SUBJECT TO PROSECUTION. MINIMUM DISTFtNCE BETWEEN A WELL AND ANY ON-SITE SEWAGE DISPOSAL SYSTEM IS :t~3E4 FEET FOR A PRIVATE WELt_; OR i5E~ TO 2E~E~ FEET FROM A PUBLIC WELL DEPENDING UPON THE TYPE OF F'UBLIC: WELL. WELL LOGS RRE REQUIRED RND MUST BE RETURNED TO THE DEPRRTMEI4T WITHIN ]:'..':E~ DRYS OF THE WELL COMPLETION. OTHER REQUIREMENTS MIRY 8PPLY. SPECIFICRTIONS RND CONSTRUCTION DIAGRAMS RRE FIVAILABLE TO INSURE PROPER INSTALLRTION. F'EF:I'-I ~ T E><F' I F:ES F.-.EC:~Z~--'IE:EF.: Z_-:: :.l_ ... I CERTIFY THFIT ±: I Rbl FRMILIAR. WITH THE REE..!UIF.:EMENTS FOR ON-SITE _,EUEF. .... RND WELLS RS '_--.,ET FORTH B"r' THE MUNICIPALITY OF RNCHORRGE. 2: I WILL IN'_'-;TFtLL THE S"r'STEM IN RCCORDRNCE WITH THE CODES. Z;: i UNDER:-.]TAN[:' THRT THE ON-SITE SEWER SYSTEM MRY REQUIRE ENLRRGEMENT IF THE RESIDENCE IS REMODELED TO INCL. t_I[:'E MORE THRN ]: BEDROOMS. 4040 "B" STREET ANCHORAGE, ALASKA 99503 (907) 278-1551 August 14, 1978 W.O. #A18567 Mr. Todd Youngs P.O. Box 4-2482 Anchorage, AK 99509 Subject: ~dden~um to Subsurface Investigation for <~Youngs ~ubdivision Dear Mr. Youngs: As discussed in our original report to you dated August 8, 1978, we had not time to complete the laboratory analysis of' the soil samples taken-during the subsurface investigation for the above referenced.project~ That work .has.n~w been completed. This addendum is3~intended to give a detailed~ description of the major soil groups encountered during the exploration, present the final adjusted test hole logs, and present all of the results of the laboratory testing, .... Six major soil groups were identified and are described below: Group A is a brown Sandy Gravel, it is non-frost~ suscep- tible, being rated NFS. Its unified classification is GW and its gradation is shown on Sheet 1. This material will be excellent for base material for road construction. Its permeability is high and it should prove excellent for disposal of effluent from on-site sewage disposal systems. Group'B is a grey Silty Gravelly Sand that is highly frost susceptible, being rated F-3. Its unified class- ification is SM and its gradation is shown on Sheet 2. This soil is moderately permeable. ''GroUp C is a grey to brown Silty Sandy Gravel that is moderately frost susceptible, being rated F-1. Its unified classification is SM. This is a borderline material between a gravel and a sand. The gradation for this group shown on Sheet 3 shows the soil as being a sand, however, this is probably incorrect in a strict sense in the native state, because the drilling does not pick up as much of the coarse fraction as usually exists. Therefore, on the test hole logs this material has been referred to as a gravel rather than a sand. Mr. Todd Youngs August 14, 1978 Page Two :Group D is a brown Sandy Silt that is highly frost sus- ceptible being rated F-4. Its unified class- ification is ML. Group E is a brown Silt~ Sand that ~is moderately frost susceptible, being rated F-2. Its unified class- ification is SM. Group F is a grey Sandy Silt that is highly frost sus- ceptible, being rated F-4. Its unified class- ification is SM. Its gradation is shown on Sheet 4. In reference to the Table B included in the initial report dated August 8, 1978, it listed an estimated, or actual, percolation rating for each lot of the subdivision, we would like to add to that a note of caution. These values obviously come from extrapolation Of data. Indeed even where a single test hole is placed on one 'lot, that test hole represents a very small 'portion of the actual surface area of the lot. Therefore,. :the values listed in that table should only be used as an ihdicator and should be verified by visual classification of the soils at the time the exca~ vation of the absorption trench is ~ompleted. If the soils appear to vary substantially from the descriptions giv~n~i~~' the test hole logs, either much more permeable or much less permeable, the writer should then be contacted so that an adjusted rating of the soil be accomplished. If there are any further questiOns, please do not hesitate · to contact us. Very sincerely, ALASKA TESTLAB Melvin R. Nichols, P.E. Laboratory Manager MRN: rb Enclosures Test Hole #'1 Table A WO #A18567 Logged By: O.M. Hatch -Date: 7-29-78 Depth in Feet From TO 0.0' - 0.5' 0.5' - 3.0' 3.0' - 16.0' Soil Description Brown Peat, Pt, damp, soft. F-2, brown Silty Sand, SM, damp, medium density. NFS, brown Sandy Gravel, GW, damp, medium den- ' sity, Group A. Bottom of Test Hole:' Frost Line: Free water Level: '16.0' None Observed None observed Type of Dry Sample Depth M% Sample. Strength Group Unified 1 5.0' - G - A GW 2 10.0' - G - A GW Remarks: 1. Type of Sample, G=Grab, SP = Standard Penetration, U = Undisturbed. - · 2. Dry Strength, N=None, L=Low, M=Medium, H=High,~' .. 3. Group refers to similar material, this study only'i 4. General Information, see Sheet 1. 5. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. Test Hole #2 Table A WO #A18567 Logged By: O.M. Hatch Date: 7-29-78 Depth in Feet From To 0o0' - -1.0' 1.0' - 7.0' 7.0' - 10.0' .10.0' - 16.0' Soil DesCription Brown Peat, Pt', damp, soft. F-3, brown Silty sandy Gravel, SM, damp, medium densl-~y, particles to 3", Group B. F-4, brown Sandy Silt, ML, damp, stiff~ NP, particles to 2", Group D. F-3, brown Silty Sandy Gravel, SM, damp, high density, particles to 12", Group B.. Bottom of Test Hole: Frost Line: Free Water Level: Sample- Depth 1 5.0' 2 10.0' 3 16.0' 16.0' None Observed 3.0' two days after drilling Type of Dry MR Sample Strength Group - G - B SM - G - D ML - G - B SM Unified Remarks: 1. . Type of Sample, G=Grab, SP = Standard Penetration, U = Undisturbed. 2. Dry Strength, N=None, L=Low, M=Medium, H=High. 3. Group refers to similar material, this studY~0nly. 4. General Information, see Sheet 1. 5. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. Test Hole #4 Table A WO #A18567 Logged By: T.L. Barber Date: 8-5-78 Depth in Feet From To 0.0' - 0.5' 0.5' - 12.0' 12.0' - 16.0' Soil Description Brown Peat, Pt, wet to saturated, soft. NFS, brown Sandy Gravel, GW, damp to saturated, high density, Group A. F-3, grey Silty Gravelly Sand, SM, saturated, medium to high density, particles to 1", GroupB. Bottom of Test Hole: Frost Line: Free Water Level-: 16.0.' None Observed 7.5' ~ Type of Dry Sample Depth M% Sample Strength Group Unified 1 ' 5.0' 4.2 G N A GW 2 10.0' 8.7 G N A GW 3 16.0' 12.3 G L B SM Remarks: 1. Type of Sample, G=Grab, SP = Standard Penetration, U = Undisturbed. ' '~' 2. Dry Strength, N=None, L=Low, M=Medium, H=High. 3. Group refers to similar material,-this study only. 4. General Information, see Sheet 1. 5. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. Test Hole #4A Table A WO #A18567 Logged By: T.L. Barber Date: 8-5-78 Depth in Feet From To 0.0' - .3.0' 3.0' - 16.0' Soil Description Brown Peat, Pt~ saturated, soft. F-l, grey to brown Silty Sandy Gravel, GM, damp to saturated, damp at 12.0.', Group C. ~Bottom of Test Hole: Frost Line: ~ree Water Level: 16.0' None Observed 6.5'-12.0' Sample Depth 1 5.0' 2 10.0' 3 16.0' Remarks: 1. e 3. 4. 5. 6. Type of Dry M% Sample Strength Group unified 7.7 G N-L C GM 10~2 G L C GM 11.6 G L C. GM Type of Sample, G=Grab, SP = Standard Penetration, U = Undisturbed. " Dry Strength, N=None, L=Low, M=Medium, H=High. Group refers to similar material, this study only. General Information, see Sheet 1. Frost and Textural Classification, see Sheet 2. Unified Classification, see Sheet 3. Test Hole #5 Table A WO #A18567 Logged By: T.L. Barber Date: 8-7-78 Depth in Feet From To 0.0' - 0.5' 0.5' - 6.5' 6.5' - 11.'5' 11.5' - 16.0' Soil Description Brown Peat~ Pt, damp, soft. F-l, brown Silty Sandy Gravel, GM, damp, high density, Group C. F-4, brown Sandy Silt, ML, random gravel, damp, stiff, NP, Group D. F-Z, brown Silty'Sand, SM, damp, medium to high density, particles to 3/4", tight, Group E.' Bottom of Test Hole: Frost Line: Free Water Level: Sample Depth M% 1 2.5' 3.8 2 10.0' 11.7 3 16.0' 8.1 16.0' None Observed None Observed Type of Dry Sample Strength Group Unified G N C GM G L D ML G L E SM -Remarks: 1. e 3. 4. 5. 6. Type of Sample, G=Grab, SP = Standard Penetration, U = Undisturbed. Dry Strength, N=None, L=Low, M=Me~ium, H=High. Group refers to similar material, this study only. General Information, see Sheet 1. Frost and Textural Classification, see Sheet 2. Unified Classification, see Sheet 3. Test Hole #6 Table A WO #A18567 Logged By: T.L. Barber Date: 8-7-78 Depth in Feet From To 0.0' -.10.0' 10.0' -.15.0' Soil Description F-l, brown Silty Sandy Gravel, GM, damp to saturated, me~'densi%y, Group C. F-3, brown Silty Gravelly Sand., SM, damp to wet, Group B. Bottom of Test Hole: Frost Line: Free Water Level: 15.0' .None Observed Saturated 4.0' t© 8.0' Sample .Depth M% I 2.5' 9.0 2 5.0' 9.3 3 10.0' 10.2 4 15.0' 10.2 Type of Dry Sample Strength G "L G L G L-M G L Group Unified C GM C GM B SM B SM Remarks: 1. Type of Sample, G=Grab, SP = Standard Penetration, U = Undisturbed. 2. Dry Strength, N=None, L=Low, M=Medium, H=High. 3. Group refers to similar material, this study only. 4. General Information, see Sheet 1. 5. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. Test Hole #7 Table A WO #A18567 Logged By: T.L. Barber Date: 8-7-78 Depth in Feet From .. To 0.0' - 0.5' 0.5' - 7.0' 7.0' - 20'0' Bottom of Test Hole: Frost Line: Free Water Level: Soil Description Brown Peat, Pt, wet to saturated, soft. F-3, brown Silty Gravelly Sand, SM, medium density., Grou~ Bo F-4, grey Gravelly Sandy Silt, sM, damp to wet, stiff, NP, Group F. 20.0' None Observed None Observed Type of Dry Sample Depth M% Sample Strength Grou~ Unified I ~ 2.5' 7.4 G L B SM 2 5.0' 8.9 G N C GM- 3 10.0' 10.1 G L-M F SM 4 15.0' 9.6 G N-L F SM 5 20.0' 12.0 G L-M F SM Remarks: 1. Type of Sample, G=Grab, SP = Standard Penetration, U = Undisturbed. 2. Dry Strength, N=None, L=Low, M=Medium, H=High. 3. Group refers to similar material, this study only. 4. General Information, see Sheet 1. 5. Frost and Textural Classification, see Sheet 2. · 6. Unified Classification, see Sheet 3. |1' Il Test Hole Lo9 - Description Guide 50? 7 The soil descriptions shown on the lags are the best estimate of the soil's characteristics at the time of field examination and as such do not achieve the precision of a laboratory testing procedure. If the log includes soils samples, those samples receive an independent textural classification in the laboratory to verify the field examination, The logs often include the following items: Depth interval - usually shown to 0.1 foot, within that zone no . significant change in soil type was observed through drill action, direct observation or sampling. Frost Classification -- NFS, Fl, F2, F3, F4, see "Soil Classification Chart" Texture of Soil An engineering classification of the soils by particle size and proportion, see "Soil Classification Chart", note the propurtinfis are approximate and mudifications to the soil group due to stratification, inclusions and chauges in properties are included. Moisture Cuntent .- this is a qualitative measure: d_~y., no or little apparent surface moisture, damp, moisture forms portion of color, lesa than plastic limit, wet. no free water, often soft, il' cohesive soil. saturated, free water may be squeezed out, ifa free draining soil; dilatent at natural moisture content, if a non-plastic silt or fine sand. (The moisture content is further definedby reference to PI, LW, NP, M%or dilatency.) Density - refers to more-or-less non-cohesive soils, such as sand gravel mixtures with or without a fine fraction, derived from drilling action and/or sample data: usually described as: very loose, loose, medium dense, very dense. General intent is to portray earthwork characteristics. Stiffness - refers to more.or-less cohesive soils and fine grained silts of the clay-sfl~ groups. Derived from drill action and/or sample data. Very soft, soft. stiff, very stiff and hard are commonly used terms. Particle size - The largest particle recovered by the split spoon is 1-3/8", Shelby tube Y', auger flights (minute-man) 2", Auger flights (15-50 hollow stem) 6"-8", Larger particles are described indirectly by action of the drflliug and arc referred to as cobbles, Y' to 8", or boulders 8'+. Therefore when reviewing the gradation sheets, if any, the description on the hole log must be considered for an'indication of larger particles. Unified Soil Classification - This is a two letter code. See Unified Classification sheet for further definition. In some cases AASHO and/or FAA soil classifications may be shown as well as the unified. Atterberg Limits - useful for fine grained and other plastic soils. PI; natural moisture content believed to be less than plastic limit PI+~ natural moisture content believed to be between plastic and liquid ITmit s L_.~i natural moisture content believed to be greater than liquid limit · NP; non-plastic, useful as a modifying description of some silty Oilatency - is the ability of water to migrate to the surface of a saturated or nearly saturated soil sample when vibrated or jolted - used as an aid to determine if a fine grained soil is a slightly or non-plastic silt or a volcanic ash, Rock flour - finely ground soil that is not plastic but otherwise appears similar to a clayey silt. Organic Content - usuall~ described as Peat, PT, sometimes includes discrete particles such as wood, coal, etc. as a modifier to an inorganic soil. Quantity described as; trace, or an estimate of volume, or, in case of all organic, - as Peat. This may i0clude tundra, muskeg and bog material. Muck - a modifier used to describe very ~oft, semi-organic deposits usually occuring below a peat deposit. Amorphus peat - organic particles nearly or fully disintegrated. Fibrous Peat - organic particles more-or-less intact. Bottom of Testhole - includes last sample interval. Frost'Line - seasonal frost depth as described by drilling action and/or samples at the time of drilling. Frozen Ground - other than frost line, described by samples, usually includes description of ice content, often will include modified Unified Classification for frozen soils - this is a special case related to permafrost studies. Free Water Level - The free water level noted during drilling. This is not necessarily the static water table at the time of drilling or at other seasons. Static water table determination in other than very permeable soils requires observation wells or piezometer installations, used only in special cases. Blow/6" - The nulnber of blows of a 140 weight free falling 30" to advance a 2" split spoon 6"; the number of blows for a 12" advance is, by definition, the standard penetr, afion. "" ,et% - natural moisture content of the soil sample, usually not pe-'~r ormed on clean sands or gravels below the water table. Type of Sample - SP, refers to 2" split spoon driven into the soil by 140 pound weight, a disturbed sample, S, thin wall tube, "Shelby" used to obtain undisturbed samples of fine grained soil, C;, "grab" disturbed sample from auger flights or wall of trench, C, cut sample, undisturbed sample from wall of trench. Dry Strength - a useful indicator of a soil's clayey fraction, N=None, L=Low, M=Mcdium, H=High -- The samples are placed into appa.rently similar groups based or and texture and are arbitrarily assigned a group letter· Further disturbed tests including Atterberg Limits, grain size. moisture-density relationship, etc. may be performed on thc group and are assumed to i'efiect the general distrubed characteristics of the soils assigned to the group. This is an important phase of the soil analysis and is used to standardize the various qualitative determinations and to reduce the number of quantitative tests necessary to describe the soil mass. /',,30 ~ --¢--- d