Loading...
Specifications SAS©�3u2� s/7_0(9 of oo Z. • RE ' - ' 'ED AA I afghan associates,inc. FEB 13 019 ENGINEERING BUILD; :. ', :SION Reece Securit STORMWATER REPORT & CALCULATIONS Tigard, Oregon OFFICE COPY .600PF?O 4011RIII < o ''+o nQ 4:+41 s. EV's - • fir' RES.: 12-31-19 February 12, 2019 The information contained in this report was prepared by and under direct supervision of the undersigned: Dustin Elmore, PE AAI Engineering 4875 S.W. Griffith Drive Suite 300 Beaverton, Oregon 97005 PH 503.620.3030 FX 503.620.5539 dustine@aaieng.com AAI Project Number: A18122.10 Reece Security Table of Contents I. Project Summary 3 II. Stormwater Design 3 III. Conveyance Calculations 4 IV. Downstream Analysis 4 V. Operations and Maintenance 4 VI. Engineering Conclusion 4 Tables and Figures TABLE 2.1: Site Basin Properties 4 Appendices Appendix A Existing Conditions Appendix B Site Plan Appendix C Storm Plans Appendix D Stormwater Calculations Appendix E Conveyance Calculations Appendix F O&M Report 2 Reece Security I. Project Summary This report has been prepared to outline the existing and proposed on-site stormwater conditions for the Reece Security project. This report is based on existing survey data and site investigation. The project site is located in Tigard, Oregon. The total pre-developed site is approximately 50,362 square feet (1.16 acres). The site currently consists of an existing building and associated parking. The current runoff from the site runs into existing catch basins that tie into the existing storm main. See Appendix A — Existing Conditions The primary purpose of this project is to develop the site for a building expansion, proposed parking and drive aisles. The site improvements will consist of a proposed expansion of the building, associated parking and drive aisles, and site pedestrian improvements that include approximately 32,145 square feet (0.74 acres) of total impervious area. See table 2.1 — Site Basin Properties The total site will be approximately 50,362 (1.16 acres). In addition to the site improvements, stormwater conveyance, and water quality treatment are also included in the proposed design. See Appendix B — Site Plan and Appendix C — Storm Plans II. Stormwater Design The proposed stormwater facilities are designed to capture all runoff from the proposed site improvements. No runoff from adjacent properties is anticipated to be captured by the proposed facilities. In addition, all site impervious runoff will be completely managed on site and will not drain onto adjacent properties. The stormwater quality and quantity required for this project will be designed according to the requirements outlined in "Design and Construction Standards for Sanitary Sewer and Surface Water Management" by Clean Water Services, dated April 2017. The stormwater management will be accomplished with 3 planters and a Contech Stormfilter that serves to meet the water quality requirements of the project. Water quality treatment in the planters is achieved by flowing through an 18" depth of growing medium. All stormwater has been modeled to outfall and flow through curb cuts into the planters at different locations. This results in a conservatively modeled water quality treatment, as some stormwater will actually receive greater treatment than modeled. The planters have only been sized to allow for water quality. The planters located to southeast of the site will be pumped to the flow- control manhole. The flow control will be managed through underground detention, any storm 3 - Reece Security event greater than the water quality event will bypass into the underground detention and then the controlled flow will run into the storm main. See Appendix D — Stormwater Calculations TABLE 2.1: Site Basin Properties Drainage Impervious Connected Treatment Basin Source Area (sf) Type Asphalt 1 Pavement 22,100 Planter 2 Roof 10,670 Planter 3 Walkways 630 Planter Gravel 4 Surface 4,730 Planter Total 38,130 III. Conveyance Calculations See Appendix E — Conveyance Calculations. IV. Downstream Analysis No negative impacts are anticipated downstream as post-developed flows are being limited to pre-developed flows. V. Operations and Maintenance See Appendix F — O&M Report. VI. Engineering Conclusion Based on the requirements of the Clean Water Services "Design and Construction Standards for Sanitary Sewer and Surface Water Management", the proposed site facilities are adequately designed to manage the proposed development conditions and should be approved as the designed is completed. 4 Reece Security Appendix A Existing Conditions 5 • OWIE11.001-E \ n saaevEinta 1 Excellence is our benchmark.MC. C. 6950 SW HAMPTON ST,STE 170,TIGARD,OR 97223 P1-I',(503)941-9585 FAX:(503)941-9640 O www weddlesureeying net ASSESSOR'S SST'OI 'j, A.LT.A./A-C S.M. LAND TITLE SURVEY OWNER' KS YAP 25t01DD 1, OWNER: 5755 S.W. SANDBURG ER STREET WESTON INVESTMENT CO LLt Q IN THE SOUTHEAST QUARTER OF SECTION 1, SINS: 6975 SW.SANDBURG STREET " TOWNSHIP 2 SOUTH, RANGE I WEST, TIGARD.OREGON 97223 FNGmEER COITERL SZATWN WILLAMETTE MERIDIAN, CITY OF TIGARD, MA 59 N.E.BROADWAY STREETIL =t435IX 58521 0YETR10) % WA$HINGTON COUNTY, OREGON, 200 __ _ _ _ __ __ :,r on ROD , �ti SURVEYOR NOTES - �/ /� _ �- ---- —I— r / � 1. THE BASIS OF BEARINGS FOR THIS SURVEY IS PER I SURVEY NUMBER 28393 AND THE PLAT OF'SALEM / / � \ FREEWAY SUBDIVISION. IA ° \ 2. THIS IS NOT A COMPLETE BOUNDARY SURVEY AND IS NOT r MG ? o. RECORDABLE. THE BOUNDARY DEPICTED HEREON IS BASED r \ \ UPON EXTENSIVE RESEARCH OF THE RIGHT-OF-WAY OF I0 1 w , - - '-' '' V OREGON STATE HIGHWAY 217. THIS DATA, COMPARED WITH ' < '� / fs.Be `� TO DETERMINE THETOGRAMMETRIC APPROXIMATE LOCATION Cr THE S, WERE UEASTERLY BOUNDARY / -- / H° \ 'Nee LINES OF THE SUBJECT PROPERTY. THE DATACLOSELY E /// e/ J i \ \ MATCHES LINESE OF OCCUPATION O(FENCE LINES) THAT SAG LOT 400 ,Ta MARK THE APPROXIMATE RIGHT-OF-WAY ON THE GROUND. B ASSESSOR'SEn MAP 2PW1DD Ig 9,� \ 'N DUE TO MONUMENTATION BEING DESTROYED BY HIGHWAY OWNER IN \ ". WIDENING. A MORE EXACT DETERMINATION OF THESE LINES VIGILANsous: 6 , Nc \ \ WILL REQUIRE AN EXTENSIVE, FAR REACHING MONUMENT 61325 5 W.SANDBURG STREET TIGARD,OREGON 07223 9 /W//,t: NO ' yp \ RECOVERY SURVEY. SMALAME I3 / / cuFowml° R� ` N. 3. SANITARY SEWER LINES ARE LOCATED IN THE STATE HIGHWAY RIGHT-OF-WAY. ACCESS IS RESTRICTED. I �,'e tied /��D -- - �� mvvuwx VN MANHOLES ARE DEPICTED FROM APPROXIMATE VISUAL �� �Mt / �O \ �^ APAoltex LOCATION AND VERIFIED BY CITY OF TIGARD AS-BUILT Ig ( Ah / ,� 21 6% ,y„ \ MAPPING. ENGINEERING m E B I I l - / J 4. STORM WATER DRAINAGE IS INDETERMINANT. THERE IS 'a.v....+-o�. e, ORIGINAL EAST ONES \ EVIDENCE OF WETLANDS TO THE SOUTHEAST, GRASSES "/° / _ I f �' of LOT 2, NOMSI V AND VEGETATION. NO OUTFACE WAS LOCATED. CITY OF i I 1 ;© _ Nc '21385/1 �' xc I" \ FREEWAY suBDM51aN'. \ TIGARD AS-BUILT PLANS SHOW NO STORM WATER y riA, DRAINAGE FACILITIES SERVING THE PROPERTY. ¢a //0 11 ENGINEER'S CENTERLINE STATION \ e % cab 'A .- ® •2 n.Q1Z1 D .GE(EINIL) I_ p ND 21�'.. xx_i,,, / �/ i11 }, - `°\ EXCEPTION 9 \ BENCHMARK ��I q 0 1052-SET NAIL // z_ N` t5.Do FOOT WIDE SANRMY V THE BENCHMARK FOR THIS PROJECT IS AN OPUS-DERIVED tltl - SITE BENCHMARK: SEWER EASEMENT PER FLAT \ \ O • 1 1 NAND /// \ OF'SALEM FREEWAY \ ELEVATION TION(NAND 0' COMPUTED USING GEOID 12B). 1 g- NAND ea / waomslON' ELEVATION: 215.70'ON WEDDLE CONTROL POINT/1052 (NAG q / //// 1�� ] NAIL) R TIc E.x.E I. • • // /� �// 1 rwx9kmre V 4'WIDEXUNDERION GGROUND i - ` /' N° / //// 111 .,' ,,A O \ LEGENDU DISTRIBUTION unE 1 V I cc///// J 1 A L. EASEMENT ! // 1 �f rTP �Fc • =FOUND SURVEY MONUMENT AS NOTED I 7 �/ 11 /I CAV :no Pr,F s o \ • = ASPHALTIC CONCRETE(PAVEMENT) /z14.s6 / 1' ��S�$�oyc Q� .BOL = BOLLARD IMO w TfMe Are MR N• / 'AA CAN CIF = CABLE TELEVISION (COMMUNICATIONS)= CHAIN LINK NCE ••ua• Sex• J..- /�// /o, q1 'P/.mo Of Gy00.pYp \ CBS = CATCH BASINS(SIPHON TYPE) Fu: s•a :a•.lue `� I(/ // EXISTING COMMERCIAL BUILDING /� yy r"GZ y0 9 i 5/e'R.Awe t // // 6]510,512 SQUARE FEET STREET ///® n y- ,G'' OF` o CO = CLEANWT e••.D 1 Phi N C.C 0 Y / !' ' -'%' / / ENGINEER'S CENTERLINE STATION ,'�G" r 2�' \ CONC = CONCRETE I 0 '15G6 A'°' (FOOT PRINT) I 11,182.000 85.000(METRIC) 'F y'r�9�i-, O .D$ DOWNSPOUT Ic / 11 CONCRETE CONSTRUCTION / 44 I"A el 1 r/ - TTT/// / / �� r ,�, DEB = ELECTRICAL BOX CRC A / -ru Dxr 6" y ENGINEER'B LENTERLNE TRIO) 20 r DEALT = ELECTRICAL VAULT / - , /nlwz' 13 ` 1yy /// ,/ 11�482.000 00.130(METRIC) �,9 \ 9EX = TRANSFORMER (ELECTRIC) F 1 10 xc I �0 5- ®FH = FIRE HYDRANT �� z116e414,w /�/ /' ❑GM = NATURAL GAS METER . 1 // / § SIGVALP = NATURAL GAS VALVE = LAMP POLE 1 1 I� / ' / MAR 11 ////� / / / ,,6 #NG = NATURAL GROUND `} A 2s'DEEv 1 /01'' / / 'N P - PLANTER(LANDSCAPE AREA) / ''" '•. // O P.O.B. POINT OF BEGINNING S, 1 // PROPERTY LINE DEPICTED FROM R-O W = RIGHT-OF-WAY11 ` 21353 ExrRUON w l0cE,c 1 // I(Y A GRAPHIC OVERLAY OF OREGON OSSMH = SANITARY SEWER MANHOLE -):::,--: :::\.r y0 °YF0 1 / //I DEPARTMENT OF TRANSPORTATION 1• a / / 0WM = TELEPHONE RISER i /u 1 �-` /4 V.//. DATED AUOF GUST MAP tOB-t2-2t f O WM = WATER VMETER ALVE i ., \ 1 213 / DATED AUGUST 199]. G /' •WV = WATER VALVE 11 i/47a,,,.. \ 1 / / / E— =ELECTRIC LINECV LL N EV -_ _ _ _ - _ ----/ cove 2n As \\�A ,P°© sQ\z 1 / / / /. t —0— = NANRALNGAS LINE C� -"'re , ) P �FCes z1z nx uD / = TELEPHONE/GOMNUNICATION$ LINE o 0 cL a) —GP—Gs A/c ORMEWAY \. II k Pavou —ss- = SANITARY SEWER LINE CO Z /I/I OS 1, AAROx A h LVMI OS Os Os P 21 ` II I III _ A/c Sag,� / i 1.' I w WATER LINE tr III 1 O O nG 4. 1- W ? " po Nc I\� ) xc ��r ��� / N° �6 = NUMBER OF REGULAR PARKING SPACES CO Q W (n 0 a ..c° T z O SW SANDBURG ST _ 1'�( E, am', = HANDICAP(PARKING) O Apar•---- � • � � ova ; - \ _ cWB AAx LOT 'S / ASSESSOR'S MAR 2 'DO v ~ OWNER WESTERN FAMILY HOLDING INC- A/c PPUS: / W / s]DO SW..SANDBURG STREET ) I \ TIGARD,OREGON 97223 MAIL: \ • PO KO DONECON 97205 ws / UJ CC `______\_---___-- 11.4958 B IIOEBDDN(METRC)N NORTH 0 , \ IIRAPEIIC SCALE EXISTING CONDITIONS m w CO.1 7 Inch•YO feet JOB N0. 17D300c1 02 11 2019 - PERMIT SUBMITTAL ®•W•W y.•� Reece Security Appendix B Site Plan 6 \ SHEET NOTES 1f, 1. SEE C0.1 SHEET FOR GENERAL SHEET NOTES. ile!N • \ 2. SEE ARCHITECTURAL PLANS FOR ADDITIONAL SITE �// INFORMATION. /'/i .:y \\ O CONSTRUCTION NOTES iEXHYEs 6/30/2019 1 INSTALL ASPHALT SURFACE PER DETAIL 1/C4.0 2 INSTALL PRIVATE CURB PER DETAIL 2/C4.0 3 INSTALL PRIVATE SIDEWALK PER DETAIL 3/C4.0 4 INSTALL WHEELSTOP PER DETAIL 4/C4.0 \ 5 INSTALL ADA PARKING LAYOUT, SEE ARCHITECTURAL \ PLANS FOR ADDITIONAL INFORMATION — — _ — — — — — `` 6 INSTALL TRASH ENCLOSURE, SEE ARCHITECTURAL PLANS — — — _ _ _ — _ FOR ADDITIONAL INFORMATION _ _ _ —— _ 7 INSTALL PARKING STRIPING. SEE ARCHITECTURAL PLANS % y _ —T — FOR ADDITIONAL INFORMATION / ,,\. • N • B INSTALL DRIVEWAY PER CITY OF TIGARD DETAIL I / I \ N •• 142/C4.0 I / ____ - >k 9 INSTALL PUBLIC SIDEWALK PER CITY OF TIGARD DETAIL 120/C4.° '` N. • 10 INSTALL PUBLIC CURB PER CITY OF TIGARD DETAIL �� �^ 125/C4.0 r/ / I �\ \ _ \\\� N. \ 11 REPAIR ASPHALT PER CITY OF TIGARD DETAIL 1E12/C4.0 9 / �`^ \ 12 INSTALL GRAVEL SURFACING I / // I 12 \ - _'- \ \ \ 13 INSTALL CURB CUT/INLET PER DETAIL 5/C4.0 14 RETAINING WALL. DESIGN BY OTHERS 15 INSTALL STEPS. SEE ARCHITECTURAL PLANS FOR IP�I ` - - ��� \\ ADDITIONAL INFORMATION ����{� II \ I k l: ENGINEERING� :�oo>o��F2'1 o�.i.'"'" m.. © O / Y, \ \ \\ LEGEND .... r \ PROPERTY LINE —— — — — — — 1 II � �\�/�� \\ \ /, /////' /.//; -\ \ \ EXISTING BUILDING ,: A A / • .. ©. „ i, M. A ASPHALT SURFACING 1.I `O \ \ O I I` T` © j \ CONCRETE SIDEWALK f• •• Q II V AGRAVEL PARKING �',„, , ,....:„.1.0, 4 , I I v \ \ RETAINING WALL �✓ I . c2s I •, 0 I� I �A I 15 7255 AVE SUITE SOD \ \ P UTuND,ONICPV nii• I..'" );' \ TAM: {ea.331•10 ,IL:' ' (:) l,la: ', . �I 1! ... O { . ;I: ii& T \\ 0 I OI� © , Ir, ' r i ' O O w \ O L. IiI _ ____ -/ ---, Ida it o CC 0 �f�. • �.\� r V'1 SW SANDBURG ST FI —__ o E 0 , 0 " of M� ¢ ' r 0 mUcoH- 4s° / —- O m { ,o G'AAPHC SALE R HARDSCAPE PLAN \ (IN F1}T) S i Moll•YO NM JOBNO.170300.01 2/14/2019 - PERMIT SUBMITTAL Reece Security Appendix C Storm Plans 7 \ SHEET NOTES 0,--../.0)" 51. SEE C01 SHEET FOR ADDITIONAL SHEET NOTES (4\\ 2. STRUCTURES HORIZONTAL LOCATIONS AND PIPE INVERTS �ARE BASED ON THE CENTER OF THE STRUCTURE /' x 3. PIPE BEDDING AND BACNFILL FOR ALL UTILITIES SHALL BE `,„or \ DONE PER DETAIL 1/C4.1. 4. ALL STORM PIPING SHALL BE PVC 3034 OR APPROVED ICXNRES 6/20/3010 I EQUAL AT 1.0X MIN SLOPE, UNLESS NOTED OTHERWISE. 5. THIS PLAN IS GENERALLY DIAGRAMMATIC. IT DOES NOT SHOW EVERY JOINT, BEND. FITTING. OR ACCESSORY REQUIRED FOR CONSTRUCTION. 6. CLEAN OUTS SHALL BE INSTALLED IN CONFORMANCE WITH UPC CHAPTER SEWN. SECTION 707 AND SECTION 719. % . -'\ NOT ALL REQUIRED CLEAN OUTS ARE SHOWN. / 7. UTILITIES WITHIN FIVE FEET OF A BUILDING SHALL BE CONSTRUCTED OF MATERIALS APPROVED FOR INTERIOR - - - / / USE AS DESCRIBED IN THE CURRENT EDITION 0 THE UPC - - q / - - -� - - -- 1_ .,. 8. CHANGES IN DIRECTION OF DRAINAGE PIPING SHALL BE I) - - T - MADE BY THE APPROPRIATE USE OF APPROVED FITTINGS \ AND SHALL BE OF THE ANGLES PRESENTED BY \ ONE-SIXTEENTH BEND, ONE-EIGHTH BEND. ONE-SIXTH N BEND OR OTHER APPROVED FITTINGS OF EQUIVALENT SWEEP. 1pp2 "I 6 1'N`t \ ` N 9. RETAIN EXISTING SANITARY SEWER AND DOMESTIC WATER y 11" n .N N N v v SERVICES TO BUILDING Dla �/ / a% .1,9rh- �i� ,, N.N \\ O STORM NOTES ry�0,`� 1 TIE TO EXISTING STORM MAIN. CONTRACTOR TO VERIFY I s .�' \ DEPTH OF EXISTING STORM MAIN, � 44 LF- 8� N 2 INSTALL CHAMBERMAXX STORMWATER DETENTION SYSTEM S=1.00% N PER DETAIL ON SHEET C4.2. THIS NILL REWIRE 2 1 / r \\ STARTS, MIDDLES AND ENDS. w w I��l� / % 5 if - 8"SD -'( _ 3 INSTALL DUCTILE IRON PIPING oWao, I • I( / •/ 5=1DOR / 13 RIM C2t36d \ \ 4 INSTALL CONTECH STORMFlLTER PER DETAIL ON SHEET ENGINEERING \ _ S 1 ODR IE 8"WT.21077(NW) C4.2 " 1 4 C�-02 O RIM-21S59 \ \ 5 INSTALL PUMP PER DETAIL S/C41 IE B"IT=21015(SE) I/ (.� - 'K 6 INSTALL FLOW THROUGH PLANTER PER CWS DETAIL 10' OUT=21015(SW)/ I \ I :. � ._ �/ � 7B4/C4.2 _ ILL, / • � yl\ \ � , ip "SDI �• w LABEL LEGEND `. SD CO-02 V' / . 1 / V \ \ PPE LABELS ar 1 / '. ^ � r IE 212.70 t \ CI SD FCMH-Oi 71 LF 1O"SD y ♦ UTILITY LENGTH R11.1=213 22 I u/I I S 1.00R �' 5 E - e"SD can IE 2" IN=207.98(SE) SD OV 07 � / �� / 5=0.505 • \ UTILITY SIZE IE 12' IN-207.98(W) RIM-212.53 A Eu n[ Gixe IE 10" IN= I I�- IFW 6'=209.53 --' / <r (SDDRAINAGE) L<u m \ XXLF- XX"XX ~UTILITY TYPE = STORM 208.74(N) Y 71 LF - 6"SDO I \ IE 6" IN=209.09 (E) P 15 LF- 6"SO / 5=0.50R 3 T[e o c s IE 10"OUT=207 98(5) I I S=.0R 214 ' 1 I' W \ S=X.XXR SLOPE(WHERE APPLICABLE) 1 4 4 LF 10"SD ,8 STRUCTURE LABELS B.72ND AVE SIM NOD 11 LF- 12"5D 5=1.00R SD OF 02 a/ E=DS 21270 ^ \ \• UTILITY TYPE (SD- ) .MOON Nu• S=O.00R 1- IE-21214 7, ', \ STORM ♦ee: •Bs.st x.:• B 5 LF- 12'SD / / 5 LF- 6'S STRUCTURE TYPE CALLOUT(SEE BELOW) t_"°` 10 s xri x... I. 6 x S=O.ODE I` / S-B.38S EXISTING BOLDING OIE:2 0 53 \ %X XX-XX ID NUMBER (WHERE APPLICABLE) .II' x 1��s FFE=213.95 RIM= XX.X �1 �' �` �(• ♦ 32 LF- 6"SD \ IE IN - X%.X STRUCTURE INFD I). * '�" 5-0.50R O \ IE OUT= X%.%] (WHERE APPLICABLE) 5 LF - 6"5DO \ STRUCTURE TYPES �, I 5=0.46R / O W` 68 LP- 4"SD Dv I OUT DESCRIPTION CO 1 I 011 .�� �;,/ / ` O56 LFS=050R hir `W' 5=7.29R FCMH FLOWN CONTROUT TOL MANHOLERADE PER DETAIL AIL C5/C4.1 W ,� / OF OUTFACE `j 91 LF 2 SD ( t, DV OVERFLOW PER DETAIL 2/C4.1 I 50 LF - 10 SD �� 4 F; S=318R < 1 IE 207 31 'a► Vl`�` , so co-ol '�� \6� LEGENDS S��\ IE 20fi.37 "� / SD PUMP 5 ii STORM LINE.,,,...... ...:.., .IE r IN=203.02(SE) 4 .P , Itk/ - IE 20693ICIO . / TI' `I _ SD OF 01 { t� 1� Z CD (� _ 21 LF- 6 SD RIM=207.43 SW SANDBURG ST ' 0 " ': - j IE 6=204.43 0o p ,r G - 1 [ tf-r - SD OV 02 ' 39 IF 5 6"SO ( „ - 6B LF- 2'SD RIN-20723-_. , S 100 = U. 6 IE 6'-20423.; x an co H X,yr O111 Cr (\ o 0 \ GRAPIC SCALEUTILITY PLAN NDI" W� P \ ( -20 C3.0 tlRms0g6E JOBN0.t70.700.Dt ESwslxrAuNuRems 2/14/2019 - PERMIT SUBMITTAL RESURFACING MATCH PAVED UNPAVED EXISTING PAVEMENT I SECTION AREAS AREAS S ,p PR(? EXISTING AC SAWCUT I DETECTABLE ' Aj� ' PAVEMENT LINE WARNING TAPE j�'�5"jy (�vA Is ' . ) V "-/ 12^ 'Le'4 /C N fps w IERPIREs: 0/0/S0ls I Zp ZwYQ 1:x� / VF F J O CV \ hB m \� \/\'T . ffi a N W �x� ,TRACER WIRE w Ew 12" '\/ / u w z am \ /\ grc �" a ORIFICE SIZING i, WINIV> ' \. STRUCTURE DIAMETER (IN) ELEVATION (FT) w �\ Tilatrian 2-YR 4.30 210.15 \.'\ / 10/25-YR 2.40 211.32 EMERG. 12 212.21 MIN. MIN E O TYPICAL PPE BEDDING AND BACKFLL ADJUSTABLE LOCK HOOK In SCALE. NTS r 1 WITH LOCK SCREW 1" DIA. ROD OR TUBING C INLET FROM LIFT HANDLE AqL MAX WATER OVERFLOW INLET. DETENTION FACILITY ATTACHMENT ���r' DEPTH SEE NOTE 1. MANHOLE ACCESS o ENGINEERING ,.� FROM ABOVE aJ RIM- SEE PLAN � � m, pppp ma=.m:ulssrvx.ux wl...y�. ___Si_ ���(11��11114____ 54" DIA. LIFT HANDLE ""�•,�," 6" DIA CAST IRON dip it, MANHOLE L 1 1 RISER PIPE, JUST 01.11 FOR PORTION I ABOVE GROUND. /'_ 1 \+��/ MAXIMUM OPENING \ I I NOTES u / •% / I A/ 1. OVERFLOW INLET WITH 1f" HOLES ON lD l6' \ \V A ATRIUM GRATE. ATRIUM li OUTLET BOLT CIRCLE -- /A/� <,I�LA/i - GRATE SHALL BE 6" q?cNrtEclu RE \ \ LV AFIAMETER GREEN PROSTIC \ \% A FROM NDS OR APPROVED Fa GInE[eING�\\\\\\ EQUAL \\\/\/\ N /\ 'A 0 INTERIORS CLOSED NN 1 TO STORM SYSTEM PLAN FRONT SIDE It nut Av[!Win mo �!�Itll III05 P0ITLAWD A0R1 S LR.l tl24 INSTALL PLUG OR • SHEAR GATE DETAILS r A A': 603.181.11170 CONNECT 4" PERE. PIPE WYE '*X: a (WHERE APPLICABLE) IF- SEE PLAN HARD SURFACE 1 LANDSCAPE AREA FRAME AND COVER ILOCATION PER PLANS O OVERFLOW INLET SET IN MORTAR CAST FRAME AND I MECHANICAL PLUG REFERS TO CENTER OF STRUCTURE 2 WIN V FINISHED WITH GASKET SCALE: NTS GRADE IN PAVED AREAS RISER NTH. RIM PER iL=di ON GRADING PLAN GRADES 11// CAST IRON FRAME AC PVM'T OR CONC. PAVING T/2 MINI SET IN CONCRETE MORTAR SEAL OR OTHER SURFACING 'a a -' 12" CONCRETE COLLAR `�� 6" MIN. THICKNESS PVC PIPE UNION 1r=—z� '( AROUND FRAME, OR 2" PVC ELBOW !! 1W 1. Li^Mpg_ I CAST INTO CONCRETE ���1="��1` WALKWAY MANHOLE FRAME AND GROUT FRAME, TYP. r 2" MIN. T— 1 '� i COVER AS SPECIFIED 2" GATE VALVE �I 6" MIN. f !�-'I N4 HOOP 14" S/S BOLT. TYP. FINISH GRADE PIM �� I I CENTERED IN 3000 PROVIDE LIFT HANDLE - 2" CHECK VALVE ' , IC-PSI CONCRETE PAD. 1" DIA. ROD I- �,® F— p Cn N PROVIDE " MIN GRADE RINGS N 4" MIN. Y4 Pi OVERFLOW 26" 'El MANHOLE PER CLEARANCE FOR MAXIII 3' MIN. , f� DETAIL 6/C4.1 CONCRETE PAD :I1 —� 12" MAX. O W 2" PVC DISCHARGEill AND RISER PIPE o U m Z PIPE DRILL)6- VENT HOLE IY' DIA. rr W O O RISER PIPE Z 0 CONNECT TO POWER i GALVANIZED PIPE SERVICE IN VAULT STRAP (T•Ip) .I FABRICATED SOLID WALL 3fi" 70 Q (SEE ELECTRICAL PLANS) r DI ,IDETENIOCILITY • c�PRECAST SECTIONS,W✓E BRANCH / 45'BEND HEIGHT VARIES. SEE, FLOW FLOW • NOTE 1. u ^ U' ELECTRICAL SUMP PUMP _, m LO RESTS ON SUMP FLOOR Ill CARRIER II IN-SEE PL4N ValE OUT SEE_PLAN PREFORMED MANHOLE BASE ~ Il PIPE RUBBER W nuui o " INSTALL PLUG Will FRESNO SERIES 6800 ASEE NOTE2LIJ E 5�ORL, 1vi\ G ® _NOTE 3T - -- • —_„ IF REQUIRED aIII WITH ORIFICENOTES, BEDDING MATERIAL N 4� _ GROUT(TYP.) 1. PIPE SUPPORTS SHALL CONNECT TO UNISTRUTS(TO BE INSTALLED BY 5" MIN. \ / ENGINEERED FILL t'r•L—X'BASE ROCK CONTRACTOR). 1.NOCAST IRON FRAME AND COVER SHALL MEET H-20 LOAD REQUIREMENT.S. R" MIN_ 54" MIN.- -''' 2. SUMP PUMP - ZOELLER MODEL 256 z 1. ALL PRECAST SECTIONS SHALL CONFORM TO REQUIREMENTS OF ASTM C-478. 2.FOR CARRIER PIPE SIZE 6"0 AND LESS, PROVIDE RISER PIPE SIZE TO MATCH `P E 3. PUMP ON LEVEL- S" FROM SUMP BOTTOM CARRIER PIPE. 2. MANHOLE BASE MAY BE PRECAST OR CAST IN PLACE SEE STANDARD MANHOLE 4. PUMP OFF LEVEL- 1"FROM SUMP BOTTOM I1111111111111111111.‘ 6"MIN. BEDDING BASE DETAILS. 3. ALL CONNECTING PIPES SHALL HAVE FLEXIBLE, GASKETED AND UNRESTRAINED 3.FOR CARRIER PIPE SIZE 8"0 AND LARGER. RISER PIPE SHALL BE 6"0 DETAILS . 5. CONTRACTOR SHALL DESIGN AND INSTALL ALARM SYSTEM WHICH IS TO BE SECTION A JOINT WITHIN 18" OF MANHOLE VAULT. ACTIVATED WHEN WATER REACHES 5 FEET ABOVE SUMP PUMP. 4.RISER PIPE MATERIAL TO MATCH CARRIER PIPE MATERIAL. 3 PAP STANDARD CLEANOUT (COTG) FLOW CONTROL MANHOLE O STANDARD MANHOLE C4.1 O SCALE NTS O SCALE: NTS SCALE: NTS SCALE: NTS O JOB NO.17D300.01 2/14/2019 — PERMIT SUBMITTAL W"...PRpA"eNESCO ROROTORt - eSITE SPECIFIC DATA t ' rA CHAMBERMAXX DESIGN DETAILS REQUIREMENTS r.NEWSWRAA _ _ y I WpE wow �sIART MMxEA LIMNER (••LNAF1BO' �"�' FEATURE START MIDDLE END FmpR�ceTwLEn DEYMA4 sIAYCE PFHFRMlLErYALpOOWNI( �, PEA■ ]Z& CHAMBER CHAMBER CHAMBER pE POOP ORWIBe0NnMsvnTEMYEonw.wEANo • RMI.F%SIAGESIMM1OE Ttl,O r. �l�ll����l�ll 111'1�i��� 111111�11�1111 OAF./CIPAKR HBOHT.IN Wm) I11W70) 60JaR1 W.BRN, 2%W C.OxIICTSTIYFIAi0100u JVti1VLL4%N.F'RWpin.NM 6u(306) ETA(1S6) 814(109) TOTAL REWIRED SP/N+CPCOLA*10EORRIInew IErPIliE4 %/aD/zpro WNIF GPiMn ' II ���II II ++II II II „CrµLACTUAL 11 Th.0(0n,-,NORM ZS RUED BSAIE169I lowwww) �1HIO INVERT BELOW ASRNLT nT OR MI VCMPPE ,II1111IIIII 1I1II11111III11IIIII1I INSPECTION wa _.I I ; MIYAsrpNE lOL11tE-cF lw'1 sOznEA'n 'L/sny'61 L6x(�Ilr ux11NG1FN31111fi EOII PORT SPECOPERTION� �•�'� Y c.maet SKPMi PEA tW6Vt MO!-CFA.F AWN) RP NNW E.6M6110 fl66Q POROUS STOiEABOVE O1WI6ER ONION mml - - Y + 1 + 'I 1 CWW 4051) 1ST RPM M1(2107) IE.TWERP; POROUS PRONE BELOW CIVEIBWR ON ORRN) 60 T'BMESL9 �III�I ��II���IIII II �ALLE0IXLMERNYU6EPML.PEFAimT�mrtFf.Imml R4MID31 1CPPln &O RI 991) 'STONE POIROSITYI110RP%) n� 121t01 ES TS('IIMI 1 1) ! F a TT SYSTEM OYMERR ON ORmm) -. CMPMRFRK CJrI YI MANIC �, 6 11111111111111111111111- 1- TOI 16LmmI Cr WORE MIME WCDELON PNAMBER.5 WC,'=SCNMREn SPACING PAD 1G%PIYYWRY I'fER ENGINEER OF RECORD CWWNFASRMI a ppi£HNMGLp0 R WA 5� .._..._..._._. MAMMY, OPENING FOR w.,,, �WOmm1 K1 OW'1ST omm1 CONTRACTOR, `wowwwAtinl RCWx1AYER6 f(/ s SNBAT AS41O POW CLAPS MFw f C(IxiaMMFNf POW --_A NOVAIPEOF121E 2mEWEN B ••2 GENERA, _ PLAN VIEW /c.AMERSAN.sEDD,NO \.... , xLE.EvnrlaD,O&wx,Oxe antDG,IDNavF RSERBAW NLEasn.0 EVSAIFl6DBY 11E 6laRIEMw e A'WOE wlm nOm OVERLAPS OPENING FOR NN11'ALE RECORD. ].PRIOR TO W4TNUI ION Of OW G10ERW W XZSVPTEM A EL YWVYL GNSTRVCTICN,EET SI SE CONDUCTED. O ,I-I IIIIf1I II II_1I IIIII1I II�II�_I'I_-�' TBE'''SR PLAN THOU PEIXEREO TO ATTEND ME TH0E SUPPLIER OF THE SYSTEM ME GENEAY CONTRACTOR.SUOCONIRN:IpR C. 1M ASP NW SNGME6R. 1 CHN.1ERMMNG6AMRERS ME WNUFACNRECIRIXA FIXYNp4RENE PTA61C. +T ♦CHAWBMAF%SVS FETA TO MEEIM0MON3MMSSSW04)0. i.PEP SAWN,LRF C.SECTION V. y p ArV.''hY .'?....(hdv.^ 'CET.W. &ILVs mYERa To pen AARO„awnv0 EVELGORxi Y Q PP 7 FF NINNIES COVERW 1&INCCRL*1007mm�AND MINOR RCOVER6E00201 MOB mn)TOEOT((MOE FLEXIBLE a 5 I'.i I ssw WET PF & M NEWS.GREATER THµ&MN F8IWNI MOOT/TACT TOUR REPRESENTATIVE 8 '`0... �: mmnl 1E4emn) yyryry 1 UR1ESSOTHER91SE•01WS ] 4'.FNGIII YLENOTI LAYIPNOM 3 8TM/WWFp➢NYHli9 I.FOR WFpILNTICN PRE TEOPPTWIIT SSW.%.REFERENCE CMTECN FPS TREAT RENT SYSTEM VANDMC E1 S {STAR,, IOI IEWI 1 COALS OE CONTACT VWRLG'µ REPRESENTATIVE L, 23[ ELEVATION VIEW R CHALmERMAw RY COMMON CHNEEREG COCOONS I LC TYPICAL LAYOUT SECTION sa b DIVERSION MANHOLE DETAIL wsru^11QN1c`E0 0 1.CMWIBEPRR OWL.WATOxWMlFOUNDATION 1300174IEMED SYCORKTER00.YWIGTGx0ALLA1Ex WmM r�c.Pn Prtm PLACING SUMO EFOU O OI0MUSi SWCNTRACIODTOA0N OT,ARCSTO9,E MAR'.W1HFAfilllVENT PRAT UNSUITABEFWNW WALL FE RMOVE IOWWR LIGHT EINCRT (WARE IT GROOMS SHOWAS R�k ELLIPSE EPAVEMENT 000500 1FIKEOMUNSE UNSUITABLE MRTERVYSWIIEPEY'JVEOWHORMWPFET P1M10(WARE WITH FLL MATERIAL AS ORNULW ROM,EASE `"° TEr ENGINEERING ANT SUITABLE NATIVE OR GENER4SACNFEL SEEPNONFPR MARS 501010LEwp 000NR MAE 1UM SE RACED RFPo,fO ORACWOR4WlMpLL.uAxiV MtxM1,N 11 10 WAW E E IOW IHGmm)6EYGID nolae - 01110 a� COMPACT TOWN sexS A^M°SRNFY 11.510#lx.NAT*CLAE RO^O 9E ISUPPLEOBYOnER,I CONCRETE C(NAS E COVER PE VINO SPACERGREAATEERRT PP'DS Ws]MCHAMRER9W NONWOVEN GEOR%1SL.TO n0�) 1 )Prm nE9Ix.CCNT R' rIBV OmEIW R PNLVE w INSTALS i6 AMPAIEN,IIYPERAAS4T R. "pMMI RfM•,1 / S 4731E EYEOLEMWTERUL SMALL SE E6!ALLE0 TOW%STANOA„O PROCTOR DE„SOY AND WADED IN RANCH PAVEMENT (91E•ITn6NCNN9 )L FTS POCH THAT ISERE IS NO;WORE THANE TWO LET 0RFERENTW BETWEEN ANT OF TRLF0MQ3 AT ANY PORE.CRANUUR BCRF&LTMTEWAL WALL SE COMPACTED l0 EMS,n0001 rrnnr66R W s E WLT OE F1WJ*CE0 ALONG THE LENGTH OF THE CHAMBER RUMS AT THE SAME RATE WO AVOW DIFPEREMAL I LOW6#M1YONS.APFACNI OF PRECNAMEER9.THE MMNWMCNWSM SWGVG MJSIO MAINTAINED. E _. &REFER TO CIALIeERMAV(INSTALLATION W CE FOR TEMPORARY CCIUTRI/CWESTOAONG OUIBELWES. - I e.ITKNOUY6 nE CONTRACTORS ROSPGNSELOT TO MEOWOSNACISIO¢ MWE PRA OLEO 'RR xsrAuwivx LET)pos AND MAT VITALS roEw ACCORDANCE WON ASlMoznA. e " CHAMBBZMaxx' Q ZS5PLAT:ARI?o ITT OFWR&AIOOE F, E� E E p FlA1NEEPERECMO a fT4YA6NW--+LU E E T.In.1e•u MOTE/MEP TO PREVENT " \ ram 1' CHAMBERMAXX STORMWATER RETENTION I ARCF'•¢rc"` " Ci'�NTECH' [EOTTIONAL ORNOVET sr Sox rMenW IMP) 1-ONe�m.) 6s 1)xnna (mi ITYP; t MIN(1VP) O w lN6,NRf®N%YIMMI mFW 1 ' fNCINECFIVC SPOOR PROTECTOR NETTING ON SPACIND F- LzuAEECf „AEM,e„W,A,A„ STANDARD DETAIL "LIP OF AL NWT RF6N "`°' sEA tpsawdolwaNiaWNPA-Acipon 1, 2EATERSEE " wag CONTAINMENT ROW OPTION A n N v c TERIOR. SW TOED LYE SUITE f80 RUN DRAIN AND WTFIAL PORTLAND.BEEe*E ETSEo PROTECTION STORMFILTER STEEL CATCHBASIN DESIGN NOTES T E L L S 0 0.R S S.1 0 S 0 fl T : SB 6.TE..1.1. BWLDINC OPF$ET AND eTgMF41EP RFAIAEXICV9CIM1RAFUNCipNCF TOE SELECTION ENO MENUMEA CPGRIRIOOES.I GMRIWEGICMBA,M Y E Y.C 1 O A 1 R C.C 0 Y PAR A MAPWASSI OF ONE SHOWN WIT II P IT ira/IM Y,� IMPERMEABLE 1110/THE AP APPROVED GTT1161EN CLV10YRross1sARS AYAIIAxE W11MI.A OPY RFOPVIRCTORDONTROLWIIP IS ALSO VAAI%FM GR29*SVlTNIDGE%IOIEFNIER BT BUILDING JUHISUICTIUN PEAR NYMAU CEMACM PER TARE BELOW 41XE SCE cON MoN9 EYCEEO PM HNRALWOCAPACITV AN L951Rf BYPASS STRUCTURE IS 'PERFORATED PIPE MANIFOLD REWIRED FOR LENGTH OF FACILITY; CARTRIDGE SE E PTION ♦'MINIMUM, v ESP '•r SIRUCTJRAL WALL PER AC“''''' CC[e6U vP cOHCTEIE EOLL.w. 3., (MI ITT 3> 11 SS BUILDING JURISDICTION MID REOARTOMIEEr S ft i„LO R EI BM^A --- eveAl tawAAR 1IlI.r�MJytl ICA�1r➢qvW•_PSNP VPLCNLE SY G N FLOW PA Iym) 5 1]5 M6 75 A A cCNRACIM ORA LIc c -. .. A L �� ) LEr EVEL(, V - P P :16 A A OVERA 1PUCIME DEICER Ri 6 4 e E l EP WRALNODES FK FLOW pIE 6APwoNAwNrvm ^iIW4]P6P IPSORB)MEUNONLY T. O00PLLNb1ES Ne Fox ROE PITO TRWxpENLMR wax OTTEDSIORDO1MFRMl*. OVERFLOW TO : P 00 410 ENGINE 0Rl)SCIM wax C£IAEEDSI0WFILLEPGI 304110STRUCTURE 01FEIL^'tl19AlU WEIGHTS.PLEASECpiilGl POLIO 6'TOP. 3J MIN CONVEYANCE - xTECN EMLT$ERE034)nReE TLC REPRESENTATIVE r,A.miuTE 00Nun 01 ..6 �EAC SO' -T ._F S.9TpIMFlLTM CATPW.YV WAI WWMSTRUCTURE SNNLSE w ACWRYME NINIHL DCVOS RATA AND WFLPVANCRIOMANEO IS DRAWING f f VAYEO REIOIAIE A INLETSSSOIRD NOT BE LOWER PAN OUTLET.&METIfAPPLICABLE)AND WREN PANG TOE SYECPk1OVEWWEFA AYO PROVIDES NV .0 ISOLOPnVFn Omwwul CONTRACTOR I- '6.WNWACTOPFR O PT A SIMPLE SEAS WELDS,TNE&NPE OF IRE TETERTOT ARON.TIE[WORT PPE SORB OW NW EXTERIOR SURFACE T'./ /IIIL� T)I T MAXFREEBOARD , OF THE STEEP SECS EC (n N SI"'il 6'uA PDND oEPm T ➢,r _ x FOP rA l 7 P.R«IMRtr Ewmp,»m.1TmN mPPRw > Pt,a OBs E,w AWE paErNDWnET RPM sTWNMD LA N II:WOE Rat�_-WWK RR WREISNB OLANETER NA%MIM OUTLET MCFffSMpNMEIBi,Cp11ECMINTOf9L1ECitlNNWN3 CAN BE MAC J U1 I\ I F..' IN' _ .... US0O REP CWrtMOBYCn0RACICR MINA ONTSICE RIM .-.. ...� 1.SIEIX STRUCTURE TO E TNNL0ACOMFD OF la INCH S00. P CASTINGS SHALL MEET PASHTO 100 VT/ORATING TO MEET MERLONS W CE 0) 1D"MN DROWSE MEDIUM 9YINO ON STHUc TMEA CONCRETE COLLAR IS REW160.WHEN REQUIRED CONCRETE CALM WITH PA REINFORCING BARS LOSE gWOED 0 w ESS I PLAN VIEW 6 FILTER CAATROOFSMAILE IIERAFLIEO PASCOE SWOON ACTUATED,RAOW FLOW AND SELF CLEANING.MOVL MEGAOFTHSMKLPP W CO Z NOYES PRTERNIEOW CONTACT nIOFEITL SEPT LEAST TB SECONDS. EW W Cl O SPECIFIC TURN IS O THE FEISS TREATMENT CAPACITY MIT/MIDEDBYTPE EETER CONTACT SURFACE/PEA WSW a'DEEP(3/4' 1/A^)CLEAN w Q W 3"DEECRUSHED ORATOR RDCN WEEP-LAMA0.NOTESL7- CO SUBY b CERII.MOTOR ASTI NATATION PROVISIONS MESKCTFIC ZEST.CIXLTOEMT CNSN°SIW1 E SPECIFIED E (n (n Li {n $s; CLEAN DEEP(I I/f a/,) _ENGINEER � �' ' 1CS VII I - CRUSHED NAW ROCK B EwSMEm SUFFICIENTvnin t1Fi NO Am RENDUGPAC ttIO LSl AND SET rNECATCreASM1UFIMOpUICREW Z 0 PRONOEO) IVh C.COVLMCTOR TO ITSW AFAROLPLATE M•uuF-TO iNOIECT CARTRIDGES FROM CONETRIP CNiEUTEO EROSION RUNOFF Q ty OVERFLOW TO _ _,«r _ OPTIONALPTOMAINES 1-CARTRIDGE CATCHBASIN i W CDC' AFFLE CLAMP OR APPROVED EouAL TINE EYE STORMFILTER DATA o ,` L� Q •l F.. E A PC4.LxEVATICN ITTP.OEa1 WA ER COAX,PLOW RATE)00) PAIL = V I` CD CONVEYANCE SLOPED B WAIEP PROOF PVC BOOT AND, B { 19yµyIElR \ F -FOVNDPOOM1 pR4M1'E ]ES aN _ OD DE l \ 1,. fxpNEDOMLE • 1 PEAK FLOW NAE(•l EV) PIS E { L RETURN PERIOD OF PEAR FLAW IY c) 1}(R V SCCTIO\ ?-A i_ ¢ - 1 1 1 - T -) I q 7 PARTRIDGE P KW.wr.IR TO DEEP) HP LEY - CARTRIDGE FLOW RATE ^• B E A • MEW/.12ffl524 ZP PROMPT OS NCTES. E. SIOWNIE x RIM ELEVA 6S _ ,11 W W 1 PRIVATE WAS DUALITY TREATMENTCARTRIDGE F lPA ION E iPI.TILNBAv _ S LOT# 1 3O IN WCTH FA'L Y L N CDT T BE CALCULATE:.BASED E' EI -T C. L PE WTA IE DIAMETER ON NCOMIRC LOW I I TLOAY 10LETSTUB ... SIP IV __Y -_ BOX SIZE (SF,) 3 VEGETATION SEE PLANT LI TIN LIDA HANDBOOK. f y• ) F I i _, CC I DULCET BILE WOO. S• OF PLANTS ND TREES DRAI O4 DEEP ROOTED VEGETATION OVER PIPL' .. PaWNwIR I T�,w Y 1 1 I.•N A CONFIOIIRATIDN +T 5 RAIN DRAINS AND C✓ER.LOW TO MAIM1TAI:M 1.AXIAIUMI LINEAR POP EIEVaiMI _ N1ET4RR 0(4100 a � �� S T.ARAIIORJ T F ri S TYPE OF PLAN iS Iwnwwl ➢PTldw) OUTLET ETri ij INnLET 5. NTT ALL PROTECTICN SIZED PEP F OW'CALC(LADONS. MATADOR OUTLET PIPE OWLET INLET JURISDICTION APPROt4 PEODIRED WHEN DEP THI OF I ...y_ .:_] : ` L -lROMROAIUI AC LIP(IS WELDS EJ ID,LCING FOC FLOW MT SIZE OF PLANTS CIE wnn S C LID YESINO GICXWNFOOI B'•R -.AccE6s PUPS �. 2a _ CArcRB/.SIxF FOOT SOLIDLOP LAVER VECTTNS i ON WHR WALL R91M OPP.IEq NOTE&BPECIM REQUIREMENTS FLOW THROUGH PLANTER LIDA y SECTION SECTION A•A SECTION B-B HANDBOOK aeanWab2r7k Services _ DETAILS CQ)NTECH'DRAWING NO. ]ea REm5E0 Us-Ts s 1 CARTRIDGE CATCHBASIN i srolmNrceL• ■+■ SD STORMFILTER DI SSW 1 STANDARD DETAIL ■ 12C L^vi NPr:ti ,.., E.1„,,prc,.he,..]r jbo:)k L3....v.r.4S.,.x, _... ............ ._.... ............ ........... NR3T;%q0 D.v .1gNs+wRrA. JOB NO.170300.01 G?61im.P0■I*0 S 2/14/2019 - PERMIT SUBMITTAL I I 1I I I ! . Reece Security Appendix D Stormwater Calculations 8 A18122.10 - Reece Security Type IA 24-hr 2yr Rainfall=2.50" Prepared by Hewlett-Packard Company Printed 2/13/2019 HydroCAD® 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 1 Summary for Pond 17P: Planter [93] Warning: Storage range exceeded by 0.03' [88] Warning: Qout>Qin may require smaller dt or Finer Routing [85] Warning: Oscillations may require smaller dt or Finer Routing (severity=638) Inflow Area = 0.122 ac,100.00% Impervious, Inflow Depth > 2.27" for 2yr event Inflow = 0.07 cfs @ 7.88 hrs, Volume= 0.023 af Outflow = 0.07 cfs @ 7.89 hrs, Volume= 0.020 af, Atten= 0%, Lag= 0.6 min Primary = 0.01 cfs © 4.19 hrs, Volume= 0.012 af Secondary= 0.07 cfs @ 7.89 hrs, Volume= 0.008 af Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Peak Elev= 0.53' @ 7.89 hrs Surf.Area= 0.004 ac Storage= 0.003 af Plug-Flow detention time= 163.9 min calculated for 0.020 af(87% of inflow) Center-of-Mass det. time= 71.6 min ( 742.9 - 671.3 ) Volume Invert Avail.Storage Storage Description #1 0.00' 0.002 af 10.00'W x 16.00'L x 0.50'H Prismatoid #2 -2.50' 0.001 af 10.00'W x 16.00'L x 1.00'H Rock Storagelmpervious 0.004 af Overall x 40.0% Voids 0.003 af Total Available Storage Device Routing Invert Outlet Devices #1 Primary 0.00' 2.000 in/hr Exfiltration over Surface area #2 Secondary 0.50' 12.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.01 cfs @ 4.19 hrs HW=0.00' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.01 cfs) Secondary OutFlow Max=0.06 cfs @ 7.89 hrs HW=0.53' (Free Discharge) 2=Orifice/Grate (Weir Controls 0.06 cfs @ 0.60 fps) A18122.10 - Reece Security Type IA 24-hr 2yr Rainfall=2.50" Prepared by Hewlett-Packard Company Printed 2/13I2019 HydroCAD® 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 2 Pond 17P: Planter Hydrograph Inflow 7/ 0 Outflow °° °h ``s Inflow Area=0.122 ac a Primary e ondary o Peak Elev=0.53'0.075 75' 0 07 f i11333131 'x Storage=0.003 of 0.065 ''.. 0.06 -' 0 055 0 05 u 0.045 0 0.04_ a 0 035 ` 0 03 0 025 002'_ 0 015 . - - 05, /" f ® � rv,P/fJ�.f. ✓lt�/./.✓�l/'ll:'":74/4Sf-6.-_-i,,/./� v.�_/1l/�/s� 001 0 005- rs.,. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) A18122.10 - Reece Security Type IA 24-hr 10yr Rainfall=3.45" Prepared by Hewlett-Packard Company Printed 2/13/2019 HydroCADD 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 3 Summary for Pond 17P: Planter [93] Warning: Storage range exceeded by 0.05' [88] Warning: Qout>Qin may require smaller dt or Finer Routing [85] Warning: Oscillations may require smaller dt or Finer Routing (severity=897) Inflow Area = 0.122 ac,100.00% Impervious, Inflow Depth > 3.21" for 10yr event Inflow = 0.10 cfs @ 7.88 hrs, Volume= 0.033 af Outflow = 0.11 cfs @ 7.88 hrs, Volume= 0.029 af, Atten= 0%, Lag= 0.2 min Primary = 0.01 cfs © 3.24 hrs, Volume= 0.013 af Secondary= 0.11 cfs © 7.88 hrs, Volume= 0.017 af Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Peak Elev= 0.55' @ 7.88 hrs Surf.Area= 0.004 ac Storage= 0.003 af Plug-Flow detention time= 121.5 min calculated for 0.029 af(90% of inflow) Center-of-Mass det. time=49.2 min ( 711.1 - 661.9 ) Volume Invert Avail.Storage Storage Description #1 0.00' 0.002 af 10.00'W x 16.00'L x 0.50'H Prismatoid #2 -2.50' 0.001 af 10.00'W x 16.00'L x 1.00'H Rock Storagelmpervious 0.004 af Overall x 40.0% Voids 0.003 af Total Available Storage Device Routing Invert Outlet Devices #1 Primary 0.00' 2.000 in/hr Exfiltration over Surface area #2 Secondary 0.50' 12.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.01 cfs © 3.24 hrs HW=0.00' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.01 cfs) Secondary OutFlow Max=0.10 cfs @ 7.88 hrs HW=0.55' (Free Discharge) L2=Orifice/Grate (Weir Controls 0.10 cfs @ 0.70 fps) A18122.10 - Reece Security Type IA 24-hr 10yrRainfall=3.45" Prepared by Hewlett-Packard Company Printed 2/13/2019 HydroCADO 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 4 Pond 17P: Planter Hydrograph Inflow Outflow Inflow Area=0.122 ac semary ondary sa 012 Peak Elev=0.55' 011 r .7 01 Storage=0.003 of 0.09- VIA 0.08 0.07- +0.06'. 0.05- 1 x. a 0.04 0.03 f -'- 0.31 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) A18122.10 - Reece Security Type IA 24-hr 25yr Rainfall=3.90" Prepared by Hewlett-Packard Company Printed 2/13/2019 HydroCAD® 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 5 Summary for Pond 17P: Planter [93] Warning: Storage range exceeded by 0.05' [88] Warning: Qout>Qin may require smaller dt or Finer Routing [85] Warning: Oscillations may require smaller dt or Finer Routing (severity=923) Inflow Area = 0.122 ac,100.00% Impervious, Inflow Depth > 3.66" for 25yr event Inflow = 0.11 cfs @ 7.88 hrs, Volume= 0.037 af Outflow = 0.12 cfs @ 7.88 hrs, Volume= 0.034 af, Atten= 0%, Lag= 0.2 min Primary = 0.01 cfs @ 2.93 hrs, Volume= 0.013 af Secondary= 0.11 cfs @ 7.88 hrs, Volume= 0.021 af Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Peak Elev= 0.55' @ 7.88 hrs Surf.Area= 0.004 ac Storage= 0.003 af Plug-Flow detention time= 108.6 min calculated for 0.034 af(91% of inflow) Center-of-Mass det. time=44.4 min ( 703.2 - 658.8 ) Volume Invert Avail.Storage Storage Description #1 0.00' 0.002 af 10.00'W x 16.00'L x 0.50'H Prismatoid #2 -2.50' 0.001 af 10.00'W x 16.00'L x 1.00'H Rock Storagelmpervious 0.004 af Overall x 40.0% Voids 0.003 af Total Available Storage Device Routing Invert Outlet Devices #1 Primary 0.00' 2.000 in/hr Exfiltration over Surface area #2 Secondary 0.50' 12.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.01 cfs @ 2.93 hrs HW=0.00' (Free Discharge) t1=Exfiltration (Exfiltration Controls 0.01 cfs) Secondary OutFlow Max=0.11 cfs @ 7.88 hrs HW=0.55' (Free Discharge) t2=Orifice/Grate (Weir Controls 0.11 cfs @ 0.72 fps) A18122.10 - Reece Security Type IA 24-hr 25yr Rainfall=3.90" Prepared by Hewlett-Packard Company Printed 2/13/2019 HydroCAD® 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 6 Pond 17P: Planter Hydrograph Inflow D Outflow 012th ns Inflow Area=0.122 ac °Primary 0.13 E Secondary 0.12.:, Peak Elev=0.55' 0.11- %' Storage=0.003 of 0.1 (�,014.0000, , ,„ 0.09 1) 0.08 X . 0 c 006 LL 0.05 0� . 0.04 - "'"� (� 'f ig . +' rr+ neap 0.03 "gar . '4"- . ,.,..,...:..,.,,:,,:,.1,,,,,,w,,,,,,_1_. ....er.e.4,,,, ,,,:.,::.6...,..,... i,,w"o� "44 0.01 //"/ .a.+ .?�..r 0 ��., 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) A18122.10 - Reece Security Constant Intensity 4.00 hrs WQ Rainfall=0.36" Prepared by Hewlett-Packard Company Printed 2/13/2019 HydroCAD® 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 7 Summary for Pond 17P: Planter [85] Warning: Oscillations may require smaller dt or Finer Routing (severity=11) Inflow Area = 0.122 ac,100.00% Impervious, Inflow Depth = 0.19" for WQ event Inflow = 0.01 cfs @ 4.00 hrs, Volume= 0.002 af Outflow = 0.01 cfs @ 3.42 hrs, Volume= 0.001 af, Atten= 21%, Lag= 0.0 min Primary = 0.01 cfs @ 3.42 hrs, Volume= 0.001 af Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Peak Elev= 0.02' @ 4.02 hrs Surf.Area= 0.004 ac Storage= 0.002 af Plug-Flow detention time= 143.0 min calculated for 0.001 af(26% of inflow) Center-of-Mass det. time= 70.3 min ( 229.9 - 159.6 ) Volume Invert Avail.Storage Storage Description #1 0.00' 0.002 af 10.00'W x 16.00'L x 0.50'H Prismatoid #2 -2.50' 0.001 af 10.00'W x 16.00'L x 1.00'H Rock Storagelmpervious 0.004 af Overall x 40.0% Voids 0.003 af Total Available Storage Device Routing Invert Outlet Devices #1 Primary 0.00' 2.000 in/hr Exfiltration over Surface area #2 Secondary 0.50' 12.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.01 cfs @ 3.42 hrs HW=0.00' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.01 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=-2.50' (Free Discharge) t2=Orifice/Grate ( Controls 0.00 cfs) A18122.10 - Reece Security Constant Intensity 4.00 hrs WQ Rainfall=0.36" Prepared by Hewlett-Packard Company Printed 2/13/2019 HydroCAD® 10.00-22 s/n 01638 ©2018 HydroCAD Software Solutions LLC Page 8 Pond 17P: Planter Hydrograph Inflow Outflow Inflow Area=0.122 ac Se ondary 001 Peak Elev=0.02' 0.009 o Olds 0008_ � ^ Storage=0.002 of 0 008 �' a 0 007 0007. 0 006 0 005 0.005-- 0004 • #' 0.003� :` ,1 0.003 0.002] 0 002- ,� ,`o-arj a t ate` a C'"N. "s"1'',.*"",�'-=;afa"a''�✓" ,'. a"y'',,�g`...fir s ,`.'.�= s°`",'^ °:P'`g. . . 001 0 0000 cfs ��3� ��� r� � /✓ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Givens: Total impervious 12,500 sf Rain event 0.36 in/hr StormFilter Catchbasin cartridge capacity 15 gpm Per CWS 4.05.6 water quality is based upon 0.36 in rainfall over the impervious area Determine WQ flow in cfs 0.36 (in.) x area (sgft) water quality flow (cfs) = /f )( 60min)(60sec ( ) 12 in t4hr)( hr min water quality flow (cfs) = 0.026 cfs Convert cfs to gpm (water quality flow (cfs))x(448.8 s fs = water qualtiy flow gpm m (0.08 cfs)x 448.8cfs = 11.67 gpm Calculating the size of the filters required (wq flow (gpm)) = number of 18" stormfilter cartridges 15 gpm per catrdige (11.67 (gpm)) = .78 18" stormf titer cartridges 15 gpm per catrdige 1 18" cartridge required Reece Security • Appendix E Conveyance Calculations 9 . . Storm Conveyance Calculations.. General Coneerted Bin J 1 Cumulative Basin I Piping Weighted Time of Design Pipe Mail Upstream Downstream Design Storm Imperus005 Pervious Area Impervious Pervious Area Runoff Total Basin To %Full Velocity Allowable Structure Structure (yr) Area)st) tnt) Total Area(st) Area(vi) tsP) Coefficient Area(if) (ur)tal Area . . f,} la icl 0 Size(in) Slope(%( (fii,) g(cfs) %Full ::‘,..,....„.,7,E2,..E6q„..:;:,--,....„,..y„].?,,.g.f. FklucTFC:::Fpy, 0,YFRFFFTP-FllrRYllinnlMRIQibWt.U.1.1:..an.MRNRFEEMgngggggku:•;!.4iadnehggn'i!,OEIiW!Ml":'"'":'"r::''%'0.19: t':;;::"' itia 26 0 kg:tSRal__ Aganial' 0,10,:: 2667 2667 0 l),TO 2567 0.06 ,.,,:;,44-, 3.40 ' - . ,':-.":'" ...,f,„,7" 11.,.,i.alagge , '''''•r'--e'atAlr71141;Etgik' '''0.:4-:-.-,.'77*-;' ,-,:4-1 ,,, 67 2567 0 .9.0 5314 0.12 . PL.122 3.40 0. ErEraligingel 3T P0-7056 , ag5....&ft', ,-;:nriiii„al.;,...„„,:,„„„,,,,,;, 0.90 5334 0.12 MU 3.40 0.37 en ..T.#.;4,-.... ., 0 sa ININEZEMMIASZL.M.22.1dIVERIBIIIIIIIIIIIIIIIIIIIONII Sa34 ° tiorall mlimmos .1..il..i:,,.,,,113732mum iwasati 0,a ',Ei=44.,, MMISEARMWRIDIN:=1111111 11 illfrq010 a" Ca' n.,0% illanttagralalintaiMAN 'a-W1 .0XL0FTeril4P777:PTA011.2::: :!°' C'Elly, "" 111111111. 1giINEM... --::1::-:!:-:::::' 2"° : :0 g.40 3.40 0.32 37.06% IMERIFIPX44M '1"IERNIIIINPO!': ::.. 5.13N.InntlaES.OMMEMINgail galr2.110MERESPINIONEENROBEig I . 40 D ‘..r. 9'94' r, ::. .W.,..VIL',111=M:....,:,,,:::::,:„:,,,,m41277‘4..,:::;:::- :.,,,.,;‘,4 -- -- 26P7 106 IVEY::•:31111301111131IMMICEilli.L...1 :,! r,--,i34 : a'' NESSOLLAM, airffieningnielffliarEMENS:'0:::Mt;,..- 0 "" '"7 0 aso • „„—- 0.12 Ittltli 3.40 037 6938% ;:: ,E, . e.so%'' 3.22 '' ' 2667 51'4 0 a" - a ly " l...1, ,. 3,40 9.37 69.76% :7..;,....6 0.50% 3.22 WRK& 09*.4 talitilii-e,,,zrarv,..... moms''',...„,..:LL,„ . 0 533F 0 0.90 53.0 71- 'E 9', E-rn7 9 41 NEE.INN 3.40 1.25 82.22 , B*1": rraM' ' "448" 0 12440 ""' ''' -"' ' "" '.'-"'" 5-"''''''-------"5E-5:"'"'"'•'"'"•• 65111:2M0)10 '''''' 415 --'''i' '-'••'--"--•'°"-°-- --- r83MOMEMPVIMBERNENOVOIVIONFORNMEMEEE;:EEE. ' '' rifi:lj.:::::7.E-:..:12:.... Q-E::::,-:,-EEE:: CC (', Apar.igansti2irairommmomm4[„.1.,,,..„,,„:,,,,,„-dessolip.j.1„11011„MINIMENEir:.7 ..:-:.:112:2M19.121111N- .12.11111440filtingbitn'ir..PALNI: ' 0.9 '/Per Clackamal CoanlY ROSIFF01'6144°Wde 1 I 0.25 lPer Clackamas County Roatvay Standards ; Rational Method Assumptions: aaediorconvaramegPv amag,od5 7"durat4 2,yr storm :,aif,,,-47,;', F.:„inlnoora COG Rainlail IntansiR Chart '1-7itorm —.1,:" 'n.iZ'ol,' - inlnoura :COG Rainfaq Inlenyity Chart 1.0-yrStorm '''.,•.G.;] !!;.!! !! : inhours COG Rainlall Intensily Ch3r1 icyr Storm .--.F.Y.l,':.]:•: D,!!,,,,;infneura COG Rainfall Intensity Chart rOlf-vea'rit;;;;i;.5:7.-.l-0-... R',:.7,-,--.,.„in/houu COG Rainfall Intensity Chart i .l Reece Security Appendix F O&M Report 10 Reece Security STORMWATER OPERATIONS & MAINTENANCE PLAN February 12, 2019 Prepared by: Dustin Elmore AAI Engineering 4875 SW Griffith Drive, Suite 300 Beaverton, OR 97005 Responsibility The storm facility and conveyance piping are to be maintained by the Property Owner. These facilities have been designed for ease of maintenance outlined herein. Department of Environmental Quality - (503) 229-5696 Oregon Emergency Response System - (800) 452-0311 Description The primary purpose of this project is to develop the site for a building expansion, proposed parking and drive aisles. The site improvements will consist of a proposed expansion of the building, associated parking and drive aisles, and site pedestrian improvements that include approximately 32,145 square feet (0.74 acres) of total impervious area. The proposed stormwater facilities are designed to capture all runoff from the proposed site improvements. No runoff from adjacent properties is anticipated to be captured by the proposed facilities. In addition, all site impervious runoff will be completely managed on site and will not drain onto adjacent properties. The stormwater management will be accomplished with 3 planters and a Contech Stormfilter that serves to meet the water quality requirements of the project. Water quality treatment in the planters is achieved by flowing through an 18" depth of growing medium. All stormwater has been modeled to outfall and flow through curb cuts into the planters at different locations. The planters have only been sized to allow for water quality. The planters located to southeast of the site will be pumped to the flow-control manhole. The flow control will be managed through underground detention, any storm event greater than the water quality event will bypass into the underground detention and then the controlled flow will run into the storm main. Reece Security TABLE 2.1: Site Basin Properties Drainage Impervious Connected Treatment Basin Source Area (sf) Type Asphalt 1 Pavement 22,100 Planter 2 Roof 10,670 Planter 3 Walkways 630 Planter Gravel 4 Surface 4,730 Planter Total 38,130 Inspection/Maintenance Schedule Each part of the system shall be inspected and maintained quarterly and within 48 hours after each major storm event. For this O&M Plan, a major storm event is defined as 1.0 inches of rain (or more) in 24 hours. All components of the storm system as described above must be inspected and maintained frequently or they cease to function effectively. The Facility owner shall keep a log, recording all inspection dates, observations, and maintenance activities. Receipts shall be saved when maintenance is performed and there is record of expense. The following items shall be inspected and maintained as stated: Storm Facilites: • Inlets and outlets shall be inspected quarterly and after any large rain event. • Any trash or debris that collects in the facility and may inhibit its function shall be removed quarterly or if "ponding" is observed. Catchbasins, Pipes Storm System (conveyance): • Sediment shall be removed biannually, more frequently if site produces a high volume of sediment. • Debris shall be removed from inlets and outlets quarterly, or as necessary to maintain free flow of runoff. • Quarterly inspections for clogging shall be preformed, or if "ponding" is observed. Source Control Source control measures prevent pollutants from mixing with stormwater. Typical non- structure control measures include raking and removing leaves, pavement sweeping, vacuum sweeping, and limited and controlled application of pesticides, herbicides and fertilizers. • Source control measures shall be inspected and maintained quarterly. • Signage shall be maintained. Reece Security Spill Prevention Spill prevention measures shall be exercised when handling substances that can contaminate stormwater. Virtually all sites present dangers from spills. It is important to exercise caution when handling substances that can contaminate stormwater. Activities that pose the chance of hazardous material spills shall not take place near collection facilities. • The proper authority and property owner shall be contacted immediately if a spill is observed. • A spill kit shall be kept near spill-prone operations and refreshed annually. • Employees shall be trained on spill control measures. • Shut-off valves shall be tested quarterly. • Release of pollutants shall be corrected within 12 hours. Insects and Rodents Insects and Rodents shall not be harbored in any part of the storm system. • Pest control measures shall be taken when insects/rodents are found to be present. Standing water and food sources shall be prevented. • Holes in the ground located in and around the drywell shall be filled. • Ouffalls shall be inspected and cleaned regularly to ensure no rodent activity, which can clog or decrease the efficiency of the storm system. • Pest control measures shall be taken when insects/rodents are found to be present. Standing water and food sources shall be prevented. Access Access shall be maintained to the catchbasins and the drywells so operations and maintenance can be performed as regularly scheduled. Reece Security Stormwater Facility Monitoring Log Infiltration • The storm facilities shall drain within 48 hours. Time/Date, weather and site conditions when ponding occurs shall be recorded. Pollution prevention • All sites shall implement best management practices (BMP's), to prevent hazardous wastes, litter, or excessive oil and sediment from contaminating stormwater. Contact Spill Prevention & Citizen Response at 503-823-7180 for immediate assistance with responding to spills. Record Time/Date, weather and site conditions if site activities are found to contaminate stormwater. Vectors (mosquitoes and rodents) • Stormwater facilities shall not harbor mosquito larvae or rodents that pose a threat to public health or that undermine the facility structure. Monitor standing water for small wiggling sticks perpendicular to the waters' surface. Note holes/burrows in and around the drywell. Call Multnomah County Vector Control at 503-988-3464 for immediate assistance with eradication of vectors. Record time/date, weather and site conditions when vector activity is observed. Maintenance • Record date, description and contractor (if applicable) for all structure repairs, landscape maintenance and facility cleanout activities. Date: Initials: Work performed by: Work performed: Details: Reece Security Date: Initials: Work performed by: Work performed: Details: Date: Initials: Work performed by: Work performed: Details: Date: Initials: Work performed by: Work performed: Details: Date: Initials: Work performed by: Work performed: Details: