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Hathaway Det Sheet C4 3320Z G_l Z __Qiiiiiiiiio II N II II I II II II N Oil I I I I I 1 0 1 1 1 1 0 1 1 1 1 ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ :1 D E: :1 D E: :1 D E: :1 E: :1 E: :1 E: :1 1 E: :1 E: :1 E: :1 :1 El 5 LF 18"0 NON PERF HDPE ! TO SEEPAGE BED No. 1 PLAN VIEW NTS- 3' WIDE CONC, VALLEY GUTTER' GRADE RIN CLEANOUT LIDS TO BE FLUSH 1VVV utiLLV1N SAND/GREASE TRAP NO. 1 (PER I.S.P.W.C. SD-624) (PRIVATE) -NTS- 1 5 LF 18"0 NON PERF HDPE PLAN VIEW TO SEEPAGE BED NO. 2 -NTS- 3' WIDE CONC, VALLEY GUTTER CLEANOUT SIDS TO BE FLUSH 1 V V V Ufti1j1jll1N SAND/GREASE TRAP NO.2 (PER I.S.P.W.C. SD-624) (PRIVATE) -NTS- 00 12" MAX. 18"PVC END C GROUND WATER OBSERVATION WELL W/TRAFFIC RATED LID (PER ACHD SD-627) GROUND WATER OBSERVATION .. W/TRAFFIC RATED LID (PER ACHD SD-627) 1 20' GROUND WATER OBSERVATION WEN W/TRAFFIC RATED LID (PER ACHD SD-627) PIPE PERFORATION -NTS- 18 0 00 � WELL CAP - i III IIIIf 3 s�® u, a PLAN CONCRETE COLLAR SECTION CONCRETE COLLAR -NTS- -NTS- 1. WELL COVER, 8" DIA. WATERTIGHT GALVANIZED STEEL BOLT ! DOWN COVER AND CANISTER i 2. 2 OR 3 BOLT LID WITH 9/16" HEAD AND SEA THREADS, GASKETED 3. CONCRETE (COLLAR), CLASS 3000 (ISPWC SECTION 703) © 4. 3/8" DIA HOLES OR SLOTS CUT INTO PIPE AT 3" ON CENTER ® 5, TRACER WIRE SHALL BE PLACED OUTSIDE OF PVC PIPE, i MINIMUM 18 GAUGE, INSULATED, SINGLE CONDUCTOR COPPER WIRE, INSULATION COLOR SHALL BE GREEN WITH THREE 6" DIAMETER COILS O 6. PIPE SHALL BE PERFORATED PVC, ASTM D-3035, SDR-35. �' WELLS BACKFILLED IN A PIT REQUIRE 6" PIPE. DRILLED WELLS MAY USE 4" PIPE z 7. NONWOVEN FILTER FABRIC AROUND OPENINGS AND BOTTOM, FABRIC OVER CHIPS/DRAIN ROCK. PORTION OF PIPE LYING IN DRAINAGE SAND MUST BE WRAPPED IN DRAINAGE GEOTEXTILE. (TYPE I I.S.P.W.C. SECTION 2050) 8. POLYPROPYLENE FIBER REINFORCEMENT AT 1 1/2 LBS/CY 9. BACKFILL MATERIAL TO MATCH STORAGE MEDIA FOR O OBSERVATION WELLS LOCATED WITHIN A BMP FACILITY. USE PIPE BEDDING CHIPS FOR OBSERVATION WELLS LOCATED SECTION OUTSIDE BMP FACILITIES 10. OUTSIDE OBSERVATION WELLS FOR THE SEEPAGE BEDS -NTS- SHALL BE MIN. 50-FT FROM PERIMETER OF THE BED. PLACE THE WELLS IN SIDEWALK FOR PROTECTION WHEN POSSIBLE NOTES: 1. GROUNDWATER OBSERVATION WELLS ARE FOR MEASUREMENT OF GROUNDWATER LEVELS WITHIN OR NEAR STORM DRAIN FACILITIES 2. THIS DETAIL IS FOR WELLS INSTALLED BY DRILLING OR BY EXCAVATING PITS 3. LOCATION OF GROUNDWATER OBSERVATION WELLS SHALL BE APPROVED BY ACHD 4. OBSERVATION WELLS NOT ALLOWED IN CURB OR VALLEY GUTTER SECTION GROUNDWATER OBSERVATION WELL ACHD SUPPLEMENTAL DWG SD-627 (REV 2017) -NTS- I 5 LF 18"0 NON PERF HDPE PLAN VIEW TO SEEPAGE BED NO, 3 -NTS- ___3' WIDE CONC, VALLEY GUTTER CLEANOUT LIDS TO BE FLUSH 1 V V V utililill1N SAND/GREASE TRAP NO.3 18" CORRUGA HDPE OR PVC PERF. PIPE (PER I.S.P.W.C. SD-624) (PRIVATE) -NTS- O 5' PLAN VIEW -NTS- LENGTH GROUND WATER OBSERVATION WELL W/TRAFFIC RATED LID (PER ACHD SD-627) FINISH GRADE AND/OR CONCRETE SIDEWALK O O O O O O O O 12" MAX. PLAN VIEW -NTS- CLEANOUT LIDS TO BE FLUSH 1 V V V Vf1iL1jll1N SAND/GREASE TRAP NO.4 (PER I.S.P.W.C. SD-624) (PRIVATE) -NTS- 18" CORRUGATED HDPE OR ]ON -PERFORATED PIPE ADDITIONAL WOVEN FABRIC TOP OF BED IS REQUIRED, IF INSTALLED UNDER PAVEMENT 3/4" TO 1-1/2" ANGULAR WASHED ROC SEE SEEPAGE BED DATA TABLE ROCK DEPTH \REPLACE NATIVE MATERIAL WITH ASTM = �C-33 SAND OR EQUIVALENT BOTTOM OF SAND 5 LF 18"0 NON PERF HDPE TO SEEPAGE BED NO. 4 12" MAX. SEEPAGE BED DATA BED No. LENGTH WIDTH ROCK DEPTH TOP BOTTOM/ROCK GROUNDWATER PRIVATE BED #1 12' 8' 8' 2630.10 2622,10 >15' BGS PRIVATE BED #2 94' 8' 8' 2630,10 2622,10 >15' BGS PRIVATE BED #3 20' 8' 8' 2630,10 2622.10 >15' BGS PRIVATE BED #4 17' 8' 8' 2627.80 2619,80 >15' BGS MIN. EXCAVATION DEPTH LTTHI ------- _,�L IIIII I I I I 1:�z DESIGN INFILTRATION WRAP BEDS (ON ENDS AND SEE SEEPAGE BED NOTE 4 RATE = VARIES (SEE DRAINAGE SIDES) WITH DRAINAGE BOTTOM OF SAND/BOTTOM OF BED CALCS.) GEOTEXTILE NON -WOVEN WRAP PORTION OF PIPE LYING IN PER BMP 20. OVERLAP MIN, SAND LAYER IN DRAINAGE 1-FT TOP & SIDES GEOTEXTILE, SEE OBSERVATION WELL NO GROUND WATER @ >15' NOTE 7, PER GEOTECHNICAL REPORT SEAPAGE BED (ACHD) PREPARED BY MTI REPORT FILE #13191414g DATED 23 AUGUST (PER ACHD STD DWG BMP-20) 2019. NOTES -NTS- 1. PIPE PERFORATION TO BE 5 - 3/8" DIA. HOLES AT 45 DEGREES AT 6" O.C. ALONG LENGTH OF PIPE. (TOP HALF) 2, BOTTOM OF SAND/BOTTOM OF SEEPAGE TRENCH SHALL BE A MINIMUM OF 3' ABOVE GROUND WATER LEVEL. NOTIFY ENGINEER IMMEDIATELY IF LESS THAN 3' FROM THE BOTTOM OF DESIGN ELEVATION FOR ANY INFILTRATION FACILITY. 3. SEEPAGE TRENCH LENGTH, WIDTH AND CLEAN WASHED DRAIN ROCK DEPTH SHOWN ON SEEPAGE TRENCH DATA TABLE. 4. EXCAVATE BOTTOM OF TRENCH INTO FREE DRAINING MATERIALS (POORLY GRADED GRAVEL WITH SAND). MAY BACK -FILL W/CLEAN PIT RUN. CONTACT THE ENGINEER TO VERIFY MATERIALS ENCOUNTERED BEFORE PLACING PIT RUN, FILTER FABRIC AND SAND. 5. GROUND WATER DATA AND SOIL REPORT PREPARED PER MTI REPORT FILE #13191414g DATED 23 AUGUST 2019.. 6. INFILTRATION DESIGN RATE IS 6"/HOUR. DESIGN ENGINEER MUST VERIFY INFILTRATION RATE AFTER FACILITY IS EXCAVATED. 7. WHEN ROCK IS ENCOUNTERED CONTRACTOR TO HAVE PERCOLATION TEST PERFORMED BY SOILS ENGINEER AFTER SEEPAGE TRENCH IS FULLY EXCAVATED. IF THE PERCOLATION IS LESS THAN SPECIFIED BY THE SOILS ENGINEER, CONTRACTOR MAY NEED TO BLAST OR BORE TO CREATE CONDUIT FOR DRAINAGE TO OCCUR OR REDESIGN THE SYSTEM TO ACHIEVE THE REQUIRED INFILTRATION. 8. NON -WOVEN AND WOVEN FABRICS SHALL MEET THE REQUIREMENTS FOR DRAINING GEOTEXTILES. FABRICS SHALL MEET PROPERTY REQUIREMENTS AS SPECIFIED IN ACHD SECTION 8202.23, BMP 20. CONTRACTOR SHALL PROVIDE CUT SHEETS FOR FINAL REVIEW PRIOR TO CONSTRUCTION. CALL BEFORE YOU DIG! CALL DIGLINE INC. PRIOR TO COMMENCING Know what'sbBlOW. UNDERGROUND WORK Call belli you dig. 208- 342-1585 0 0 a N J _0) .j C N Voo U M +� N 0. In E Ov O v� N M � J j � 0z mN o�o� N O N c ai O 00 c0 V1 C --,.e O mATA -0 a o M N N v 3 is -r- C: t 0 3 i 0 Q N Z VC 0 �r � N 0 �u aw w cn C) w p zOLLV)U� CD F­ o =) l-'51 Q 175 Z >- w O N w L'-J F-- m � o� ao w O = o in z o w C0 z a_ CD Q cn zoz wQ=v)> C0 oQ� w Q z U w Q o Li � J (n 0 w 5 J w CD Z LC of t:lf i z Q= ED J a a U Q a-w z 0 I U w w Q 0!:� w J z o o = o �Qo oQ�LILJ woo�o U) Li Y S O =D V) O O U _ w = U Q:� O ~ LL- 00� F__ z w df z o 0 Q W Q C) QL- � Z J J W Q Q Lu � LL- W Q L1J Q CN Z Co Q C>Z5 0 °O _ M CN E a) a z a U a o � Stamp CSISOIIII E NSF ��Gy 17 87 41 �w� zoo T Y, Project No. RSC-1945 Drawn By: RLC Date: 3 March 2020 Sheet No. C4 4 of 4