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LEGEND;
<br /> x UTILITY POLE N Cl)
<br /> H Mo
<br /> GUY WIRE ! : co" rn E
<br /> r G
<br /> �.X _ r 1%r %�i// , , l I 9 GAS LINE MARKER � 0 M
<br /> =- y Nr J / // r ` // r Z � Um
<br /> _ __ __ __ l _ 1 r r / f GAS VALVE a) LL _Z
<br /> r PERMIT >
<br /> BOUNDARY OVERBURDEN AND TOPSOIL Q
<br /> X \ l ~ /' r/ / EXISTING * DISTANCE VARIES 12.5' BACKFILL ALL DISTURBED AREAS ® WELL N V) o
<br /> /r -45g /.�i f/ /`� I DOWN TO WATER SURFACE WATER METER � u
<br /> GROUND VARIES W N .�
<br /> SOUTH BRANCH" r \// /\ / WATER FAUCET CD
<br /> OF PLUMB DITCH l ' ` - r,: /`, / 'f / o
<br /> I lrl/ r' I \ ! r ✓s �j .\ \ 'TS/OB�' j' i j \,' 'ti ,f \ — 45B1' 9 a
<br /> f \ w r, t , It
<br /> - ..._� WATER LINE MARKER
<br /> J ♦ / /i w r - SLURRY WALL ,A ELECTRIC TRANSFORMER
<br /> I TREE
<br /> SAND AND GRAVEL
<br /> RfC�/ �T TELEPHONE PEDESTAL
<br /> MEo T
<br /> S�'OPE TELEPHONE LINE MARKER
<br /> PROPERTY LINE
<br /> CL
<br /> FENCE LINE
<br /> 1' I , / ✓ f// "' 3, - 4 J/i 'r'j , ;F•" ./j /f' .' ; of of OVERHEAD ELECTRIC LINE RIMC
<br /> '1
<br /> G GCL
<br /> ---- EXISTING DUKE GAS
<br /> s C
<br /> a A TYPICAL BACKFILL SECTION 1 j
<br /> W—W-- UNDERGROUND WATER LINE
<br /> N.T.S. EXISTING CONTOURS (2' INTERVALS)
<br /> GRAVEL ROAD N
<br /> PROPOSED PERMIT BOUNDARY 16
<br /> PERIMETER' 75
<br /> DRAIN. PROPOSED SLURRY WALL 0 E
<br /> LOCATION i BACKFILL EXISTING 00 a)
<br /> ` . � IF REQUIRED) v, TRENCH WITH NATIVE 4640 PROPOSED CONTOURS
<br /> Q
<br /> 14 MATERIALS 0 d
<br /> . . . . . . . . . PERIMETER DRAIN N
<br /> -
<br /> 1 TYP.
<br /> SANDY CLAY
<br /> .5'
<br /> OVERBURDEN. .I l \ vim ny b 7i.,.•^�1a ` ss .',�yrvTx.4�A�yS j` 4 t ,T' -5y�u3"i�'YrY S• �n+`73.>r 3,� g `�nrc"sAN + .x .. e ..
<br /> t. ' o- s `,a '. ty�+.,�[#' tt� gqv„�t � d'"1`"fp`yx s 5$j � .�" ��+:�.1c`r'^"'ty „�.+.` ;�� 4'v �• ;€'.. I 3 5' .
<br /> ASTM C33-7
<br /> VARIES CONCRETE.
<br /> AGGREGATE. .
<br /> . . . . . . . . . . . . a . . . . . . .
<br /> rE
<br /> MIN . . . . . . . . . . H
<br /> �\ �
<br /> \\ \\\\\\\ \ lyl Y > ? F pA ?�i '� 1k1. 4y�, A,4eS A4. f{, 't'.H t' Y i L. d ° .. Q41
<br /> �\ �\ �� I ASTM C33 ° ° a
<br /> \ \ � \e\\\ ` \
<br /> CONCRETE SAND 25' DITCH ■Mr C = ■
<br /> (IF REQUIRED) VA�IES a I~ OFFSET _ OD
<br /> �I�l ��V AV� A, A � �, ✓f% 5 •, rvny"2' F54 rtk 4 4.
<br /> -
<br /> ® � \ �\IlI.1\\13 ALLUDVIUMD GRAVEL RECtpMP��ON BOTTOM OF DITCH / N
<br /> \\\ \ 3'QQ BANK SLOPE =
<br /> �X\�\� !A� •�\\\\\`. s �" '� y §, yr;a r,y5 h . ) '
<br /> 1 .5' (TYP.) 9 (TYP.) SOUTH BRANCH PLUMB DITCH C i
<br /> TYP. C OFFSET DETAIL
<br /> N.T.S. = O
<br /> c
<br /> 1
<br /> �. v r•J \ r k # '
<br /> �a� .,fit\,,��'"� '�",.. � 'i ,�.i H,'� k{`�y t `•e"�i4'� ys � ��e,`s ° ,Yr 4 �'Y„�.
<br /> PERIMETER DRAIN DETAIL (TYPICAL SECTION IF REQUIRED)
<br /> INLET/OUTLET N.T.S.
<br /> FACILITY
<br /> v SLURRY WALL NOTES:
<br /> 1. Bentonite Specifications 6. Soil-Bentonite Bockfill Specifications
<br /> 5 p S-B backfill slum ASTM C 143 1 set per 100 cu. ds.
<br /> YP/PV ratio API Std. 13A less than 3 p Y
<br /> Viscometer greater than 30 Slump 2-6 inches
<br /> Filtrate Loss less than 15 cm3
<br /> Moisture Content ASTM D 2216 less than 10 ipercent S-B backfill gradation 1 set per 300 cu. yds.
<br /> \' JP' : Screen n
<br /> Test results for each lot of bentonite must be provided. Z
<br /> S en (US Standard) Percent by Dry Weight p
<br /> 3 inch 100 -
<br /> 2. Water Specifications
<br /> pH 6-8
<br /> # 4 40-80 >\ Y o' Hardness less than 200 ppm #40 25-60 W
<br /> Total Dissolved Solids less than 500ppm #200 20-40
<br /> "a I Oil, organics, acids, alkali less than 50 ppm each
<br /> Chloride report Minimum Plasticity Index of 10 v
<br /> PERMIT 3 Bentonite Slurry General Specifications 7. Key Trench and Slurry Wall Cap Specifications > a
<br /> BOUNDARY The initial bentonite slurry must be tested prior to placement in During excavation, soundings should be obtained to determine the. 00
<br /> the trench. The slurry may be mixed in high shear mixers or elevations of the top of the key layer, the bottom of the
<br /> mixed and hydrated in slurry hydration ponds. In general, a excavation, and the bottom of the trench prior to backfilling. If
<br /> EXISTGROUND 25' minimum hydration time of 8 hours will allow the bentonite slurry sediments in excess of 2 inches have accumulated it is necessary 0 -
<br /> OVERBURDEN AND TOPSOIL to meet all criteria. A minimum bentonite content of 6 percent in to clean the trench bottom by airlift pumps or excavation ri
<br /> BACKFILL ALL DISTURBED AREAS
<br /> 3.•J 33' the slurry by weight is required. equipment to remove the sand and sediment that has settled. The o
<br /> S�OpE 12 5' DOWN TO WATER SURFACE 3' trench bottom should be cleaned, as a minimum, at the beginning Z
<br /> 4594' 4. Bentonite Slurry Testing Specifications before Placement, of each shift. Soundings should be obtained approximately every
<br /> Viscosity Marsh Funnel (API RP 13B- ) less
<br /> 20 feet.
<br /> . . . . . . - —� _
<br /> 1, si ensure w AP 1
<br /> than 40 sec Adequate keying in the S B backfill to an impermeable layer at G�Density less than 64 cpcf
<br /> m q Y 9 P Y
<br /> Filtrate Loss less than 20 cm3 the base of the wall will be required and specified in the final
<br /> SLURRY WALL pH 6.5 to 10 design report for the slurry wall. The design documents will include
<br /> a description of the key in layer and describe how trench cuttings 4-7
<br /> and
<br /> ?7 ' The tests listed above should be run 1 or 2 times per shift a or other observations will be used to assure that the slurry wall
<br /> SAND AND GRAVEL'. Mr'1'i at least once per batch of slurry. The slurry must be further will be adequately keyed. Temporary slurry wall protection will be
<br /> cement in the tench The tests conducted e r d placedwithin
<br /> density, sand contents and pH.eTwo teets of per fo day in
<br /> temporary i c
<br /> c tested after p required the form of a noncompacted soil cover
<br /> 0, viscosity,viscosity, dens one over each backfilled 100 foot reach The t over
<br /> with compacted the completed I II aced
<br /> wi a co c e c cover over a co e e slurry wall.P Y P rY
<br /> . Job# 07113
<br /> la a m l weeks)
<br /> s ran
<br /> Date
<br /> p shift at two locations in the trench approximately 2 feet below rep
<br /> the slurry surface and 2 feet above the bottom of the trench) m o
<br /> P a d t d d with the Drawn e WSS
<br /> Post
<br /> 9/1
<br /> " r/ \ \ \ eplaced w5/08
<br /> are f the thsfreshidsurryStThe slurry be Veevelymust benma�ntanedr the sla. If the density of the slurry in the trench exceeds $ry ColoradosStateioEnt5 8. Post Construction estin
<br /> , / testing will con uc a in accordance wi a Designeds _TPY
<br /> st ill
<br /> 200 100 0 200 400 600 / Jr / least 3 feet above the round water elevation and no more than Engineer's ice. ---.___ -
<br /> r / 3 _ 4'� �BEDRQCK/ 9 Checked a JCY
<br /> / �� 2 feet below the top of the working platform.
<br /> File JT-Reclamation alternate
<br /> 9. Above specifications (notes 1 -8) are provided as a general -
<br /> Z� /! / �! '" �/ guideline for permitting purposes. Final specifications and design
<br /> scale 1"=200L
<br /> SCALE IN FEET 5. Bentonite Slurry Testing Specifications after Placement 9 p g p p p 9
<br /> Unit Weight 1.03 to 1.40 gm/cm3 criteria will be developed during the final design of the slurry wall. Sheet: Of:
<br /> rB*I TYPICAL BACKFILL SECTION Sand Content ASTM D 4381 -84(1993)e10 to 20 percent by
<br /> N.T.S. volume
<br />
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