Att 3.b.viii Hydrology Studies — Murrieta City Council, May 20, 2025 (part 5 of 5)

Figure 6 - SMR Stream Susceptibility and Exemption Coverage

3.0 Santa Margarita HMP Requirements for Projects Santa Margarita Region Hydromodification Management Plan

Page 38 ends

Figure 7 - SMR Stream Susceptibility and Exemption Coverage – Temecula Area

3.0 Santa Margarita HMP Requirements for Projects Santa Margarita Region Hydromodification Management Plan

Page 39 ends

Figure 8 - SMR Stream Susceptibility and Exemption Coverage – Temecula Creek Area Santa Margarita River
0 1 2
Miles
$ June 20, 2018
Path: D:\Project\SoCal\Deliverable\MAPS\SantaMargaritaWaterShed_CriticalCoarse_11x17_SubSheds_SandGravelDeposits_pkg_v2.mxd Santa Margarita River Watershed Boundary
Protected Lands
Potential Critical Coarse Sediment Yield Area
Potential Sediment Source Area
!? Sand and Gravel Deposits
Riverside Co.

San Diego Co.

Santa Margarita
Eco Reserve

SANTA MARGARITA RIVER WATERSHED
POTENTIAL CRITICAL COARSE SEDIMENT YIELD AREAS AND POTENTIAL SEDIMENT SOURCE AREAS Exhibit G-1 SMRHM

PROJECT REPORT
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General Model Information
Project Name: 2022.05.27 - LMC Murrieta
Site Name:

Site Address:

City:

Report Date: 6/15/2022
Gage: Temecula Valley
Data Start: 1974/10/01
Data End: 2011/09/30
Timestep: 15 Minute
Precip Scale: 1.000
Version Date: 2021/06/14
POC Thresholds
Low Flow Threshold for POC1: 10 Percent of the 2 Year
High Flow Threshold for POC1: 10 Year
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Landuse Basin Data
Predeveloped Land Use
DMA 1
Bypass: No
GroundWater: No
Pervious Land Use acre
C D,Grass,Flat(0-5%) 13.35
Pervious Total 13.35
Impervious Land Use acre
Impervious Total 0
Basin Total 13.35
Element Flows To:

Surface Interflow Groundwater
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Mitigated Land Use
DMA 1
Bypass: No
GroundWater: No
Pervious Land Use acre
C D,Grass,Flat(0-5%) 2.8749
Pervious Total 2.8749
Impervious Land Use acre
Roads,Flat(0-5%) 4.9551
Roof Area 3.67
Driveways,Mod(5-10%) 0.54
Sidewalks,Flat(0-5%) 1.31
Impervious Total 10.4751
Basin Total 13.35
Element Flows To:

Surface Interflow Groundwater
Vault 1 Vault 1
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Routing Elements
Predeveloped Routing
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Mitigated Routing
Vault 1
Width: 174.768713910266 ft.

Length: 174.768713910266 ft.

Depth: 7 ft.

Discharge Structure
Riser Height: 6 ft.

Riser Diameter: 54 in.

Notch Type: Rectangular
Notch Width: 4.418 ft.

Notch Height: 1.466 ft.

Orifice 1 Diameter: 2.29876 in. Elevation:0 ft.

Element Flows To:

Outlet 1 Outlet 2
Vault Hydraulic Table
Stage(feet) Area(ac.) Volume(ac-ft.) Discharge(cfs) Infilt(cfs)

0.0000 0.701 0.000 0.000 0.000

0.0778 0.701 0.054 0.040 0.000

0.1556 0.701 0.109 0.056 0.000

0.2333 0.701 0.163 0.069 0.000

0.3111 0.701 0.218 0.080 0.000

0.3889 0.701 0.272 0.089 0.000

0.4667 0.701 0.327 0.098 0.000

0.5444 0.701 0.381 0.105 0.000

0.6222 0.701 0.436 0.113 0.000

0.7000 0.701 0.490 0.120 0.000

0.7778 0.701 0.545 0.126 0.000

0.8556 0.701 0.599 0.132 0.000

0.9333 0.701 0.654 0.138 0.000

1.0111 0.701 0.709 0.144 0.000

1.0889 0.701 0.763 0.149 0.000

1.1667 0.701 0.818 0.154 0.000

1.2444 0.701 0.872 0.160 0.000

1.3222 0.701 0.927 0.164 0.000

1.4000 0.701 0.981 0.169 0.000

1.4778 0.701 1.036 0.174 0.000

1.5556 0.701 1.090 0.178 0.000

1.6333 0.701 1.145 0.183 0.000

1.7111 0.701 1.199 0.187 0.000

1.7889 0.701 1.254 0.191 0.000

1.8667 0.701 1.308 0.195 0.000

1.9444 0.701 1.363 0.200 0.000

2.0222 0.701 1.418 0.203 0.000

2.1000 0.701 1.472 0.207 0.000

2.1778 0.701 1.527 0.211 0.000

2.2556 0.701 1.581 0.215 0.000

2.3333 0.701 1.636 0.219 0.000

2.4111 0.701 1.690 0.222 0.000

2.4889 0.701 1.745 0.226 0.000

2.5667 0.701 1.799 0.229 0.000

2.6444 0.701 1.854 0.233 0.000

2.7222 0.701 1.908 0.236 0.000

2.8000 0.701 1.963 0.240 0.000
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2.8778 0.701 2.017 0.243 0.000

2.9556 0.701 2.072 0.246 0.000

3.0333 0.701 2.127 0.249 0.000

3.1111 0.701 2.181 0.252 0.000

3.1889 0.701 2.236 0.256 0.000

3.2667 0.701 2.290 0.259 0.000

3.3444 0.701 2.345 0.262 0.000

3.4222 0.701 2.399 0.265 0.000

3.5000 0.701 2.454 0.268 0.000

3.5778 0.701 2.508 0.271 0.000

3.6556 0.701 2.563 0.274 0.000

3.7333 0.701 2.617 0.277 0.000

3.8111 0.701 2.672 0.279 0.000

3.8889 0.701 2.726 0.282 0.000

3.9667 0.701 2.781 0.285 0.000

4.0444 0.701 2.835 0.288 0.000

4.1222 0.701 2.890 0.291 0.000

4.2000 0.701 2.945 0.293 0.000

4.2778 0.701 2.999 0.296 0.000

4.3556 0.701 3.054 0.299 0.000

4.4333 0.701 3.108 0.301 0.000

4.5111 0.701 3.163 0.304 0.000

4.5889 0.701 3.217 0.496 0.000

4.6667 0.701 3.272 1.021 0.000

4.7444 0.701 3.326 1.733 0.000

4.8222 0.701 3.381 2.592 0.000

4.9000 0.701 3.435 3.576 0.000

4.9778 0.701 3.490 4.670 0.000

5.0556 0.701 3.544 5.865 0.000

5.1333 0.701 3.599 7.152 0.000

5.2111 0.701 3.654 8.525 0.000

5.2889 0.701 3.708 9.980 0.000

5.3667 0.701 3.763 11.51 0.000

5.4444 0.701 3.817 13.11 0.000

5.5222 0.701 3.872 14.79 0.000

5.6000 0.701 3.926 16.53 0.000

5.6778 0.701 3.981 18.33 0.000

5.7556 0.701 4.035 20.20 0.000

5.8333 0.701 4.090 22.13 0.000

5.9111 0.701 4.144 24.12 0.000

5.9889 0.701 4.199 26.17 0.000

6.0667 0.701 4.253 27.29 0.000

6.1444 0.701 4.308 29.09 0.000

6.2222 0.701 4.363 31.46 0.000

6.3000 0.701 4.417 34.30 0.000

6.3778 0.701 4.472 37.52 0.000

6.4556 0.701 4.526 41.07 0.000

6.5333 0.701 4.581 44.90 0.000

6.6111 0.701 4.635 48.97 0.000

6.6889 0.701 4.690 53.24 0.000

6.7667 0.701 4.744 57.66 0.000

6.8444 0.701 4.799 62.19 0.000

6.9222 0.701 4.853 66.80 0.000

7.0000 0.701 4.908 71.42 0.000

7.0778 0.701 4.962 76.03 0.000

7.1556 0.000 0.000 80.57 0.000
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Analysis Results
POC 1
+ Predeveloped x Mitigated
Predeveloped Landuse Totals for POC #1
Total Pervious Area: 13.35
Total Impervious Area: 0
Mitigated Landuse Totals for POC #1
Total Pervious Area: 2.8749
Total Impervious Area: 10.4751
Flow Frequency Method: Cunnane
Flow Frequency Return Periods for Predeveloped. POC #1
Return Period Flow(cfs)
2 year 2.968898
5 year 5.855106
10 year 7.528489
25 year 10.771715
Flow Frequency Return Periods for Mitigated. POC #1
Return Period Flow(cfs)
2 year 0.283462
5 year 3.930856
10 year 5.758073
25 year 7.040007
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Duration Flows
The Facility PASSED
Flow(cfs) Predev Mit Percentage Pass/Fail

0.2969 2122 2333 109 Pass

0.3699 1457 1274 87 Pass

0.4430 1093 1105 101 Pass

0.5160 950 973 102 Pass

0.5891 874 893 102 Pass

0.6621 811 845 104 Pass

0.7352 748 795 106 Pass

0.8082 697 743 106 Pass

0.8813 657 704 107 Pass

0.9543 618 658 106 Pass

1.0274 588 619 105 Pass

1.1004 558 574 102 Pass

1.1734 518 541 104 Pass

1.2465 482 513 106 Pass

1.3195 462 489 105 Pass

1.3926 451 462 102 Pass

1.4656 425 436 102 Pass

1.5387 403 418 103 Pass

1.6117 386 395 102 Pass

1.6848 364 372 102 Pass

1.7578 337 352 104 Pass

1.8309 314 333 106 Pass

1.9039 301 309 102 Pass

1.9770 283 296 104 Pass

2.0500 269 281 104 Pass

2.1231 250 272 108 Pass

2.1961 236 259 109 Pass

2.2691 227 241 106 Pass

2.3422 218 226 103 Pass

2.4152 203 213 104 Pass

2.4883 199 202 101 Pass

2.5613 190 201 105 Pass

2.6344 183 190 103 Pass

2.7074 177 181 102 Pass

2.7805 170 172 101 Pass

2.8535 161 166 103 Pass

2.9266 153 157 102 Pass

2.9996 145 146 100 Pass

3.0727 141 139 98 Pass

3.1457 135 131 97 Pass

3.2187 128 123 96 Pass

3.2918 124 116 93 Pass

3.3648 115 111 96 Pass

3.4379 112 104 92 Pass

3.5109 106 95 89 Pass

3.5840 100 90 90 Pass

3.6570 97 88 90 Pass

3.7301 91 83 91 Pass

3.8031 89 81 91 Pass

3.8762 86 79 91 Pass

3.9492 82 78 95 Pass

4.0223 81 74 91 Pass

4.0953 75 68 90 Pass
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4.1684 72 66 91 Pass

4.2414 70 63 90 Pass

4.3144 67 60 89 Pass

4.3875 63 59 93 Pass

4.4605 59 58 98 Pass

4.5336 59 55 93 Pass

4.6066 56 53 94 Pass

4.6797 54 51 94 Pass

4.7527 51 50 98 Pass

4.8258 50 46 92 Pass

4.8988 46 45 97 Pass

4.9719 45 44 97 Pass

5.0449 44 43 97 Pass

5.1180 42 40 95 Pass

5.1910 41 37 90 Pass

5.2640 39 36 92 Pass

5.3371 39 36 92 Pass

5.4101 37 36 97 Pass

5.4832 36 31 86 Pass

5.5562 35 30 85 Pass

5.6293 33 28 84 Pass

5.7023 32 28 87 Pass

5.7754 30 25 83 Pass

5.8484 30 24 80 Pass

5.9215 29 23 79 Pass

5.9945 28 22 78 Pass

6.0676 27 21 77 Pass

6.1406 26 20 76 Pass

6.2137 26 19 73 Pass

6.2867 24 18 75 Pass

6.3597 23 18 78 Pass

6.4328 21 18 85 Pass

6.5058 20 17 85 Pass

6.5789 19 15 78 Pass

6.6519 18 14 77 Pass

6.7250 18 13 72 Pass

6.7980 17 12 70 Pass

6.8711 16 11 68 Pass

6.9441 15 10 66 Pass

7.0172 15 10 66 Pass

7.0902 14 10 71 Pass

7.1633 12 10 83 Pass

7.2363 11 8 72 Pass

7.3093 11 8 72 Pass

7.3824 11 7 63 Pass

7.4554 11 7 63 Pass

7.5285 11 6 54 Pass
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Water Quality
Drawdown Time Results
Pond: Vault 1
Days Stage(feet) Percent of Total Run Time

1 0.197 10.067
2 0.450 7.3365
3 0.786 5.1952
4 1.204 3.5614
5 1.705 2.3697
Maximum Stage: 6.000 Drawdown Time: 05 00:00:10
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Rational Method
Data for Rational Method is not available.

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Model Default Modifications
Total of 0 changes have been made.

PERLND Changes
No PERLND changes have been made.

IMPLND Changes
No IMPLND changes have been made.

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Appendix
Predeveloped Schematic
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Mitigated Schematic
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Predeveloped UCI File
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Mitigated UCI File
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Predeveloped HSPF Message File
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Mitigated HSPF Message File
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Disclaimer
Legal Notice
This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2022; All Rights Reserved.

Clear Creek Solutions, Inc.
6200 Capitol Blvd. Ste F
Olympia, WA. 98501
Toll Free 1(866)943-0304
Local (360)943-0304
www.clearcreeksolutions.com
PLAN VIEW SCALE: 3/128" = 1'-0" STORMCAPTURE MODULES BY OLDCASTLE INFRASTRUCTURE. INSIDE DIMENSIONS: 7' W x 15' L x 7' H, SYSTEM INVERT: 1065.50'. KNOCK OUT TERMADUCTS IN THESE LOCATIONS. MODULE GAP, TYPICAL SEE MODULE JOINT DETAIL ON SHEET 3 OF 3. FDAB BAAB BAAB BAAB BAAB BAAB BAAB BAAB BAAB BAAB BAAB BAAB BAAB BAAF BD K BDDAAAB CF BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB BAAAAAB CDDDAAF QS Ø32" OPENING FOR Ø24" HDPE, OUTLET INVERT: 1065.50'. 56'-114" 544'-814" 2'-10" OUTLET CONTROL WEIR 6X Ø30" MANWAY ACCESS F F C S W E PLAN-N MODULE NOTES TYPE QUANTITY HEIGHT A 102 7' B 57 7' C 3 7' D 7 7' F 6 7' K 1 7' Q 1 7' S 1 7' TOTAL 178 VOLUME = 139,696 CUBIC FEET Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/13/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 1 SYSTEM ID REV DESCRIPTION DATE LAYOUT CHANGE 9/16/22 JOB NUMBER: 22-733385-SC2 3.5-3.5_System 1_2022-0916 22-733385 1 DESIGN NOTES 1. LIVE LOADING CRITERIA: A. HL-93 & OUTRIGGER LOADING (75 PSI ON 2'X2' PAD). B. LATERAL LIVE LOAD SURCHARGE: 80 PSF (TO 8.00FT DEPTH) C. NO LATERAL SURCHARGE(S) FROM ANY ADJACENT BUILDINGS, WALLS, FOUNDATIONS, OR ANY ADDITIONAL SITE ELEMENTS. 2. SOIL LOADING CRITERIA: A. SOIL COVER DEPTH: 0.50FT (MIN.) - 5.00FT (MAX.) B. SOIL UNIT WEIGHT: 120 PCF C. ASSUMED WATER TABLE ELEVATION: 8.75FT ABOVE SYSTEM INVERT D. REQUIRED ALLOWABLE BEARING PRESSURE: 2,500 PSF E. EQUIVALENT LATERAL FLUID PRESSURE, ACTIVE: 45 PCF (DRAINED) F. EQUIVALENT LATERAL FLUID PRESSURE, AT-REST: 60 PCF (DRAINED) G. EQUIVALENT LATERAL FLUID PRESSURE, PASSIVE: 150 PCF (DRAINED) H. ASSUMED COEFFICIENT OF FRICTION: 0.40 I. SEISMIC LATERAL EARTH PRESSURES: 30.6H (APPLIED AS UNIFORM PRESSURE) 3. STORMCAPTURE MODULE TYPE: DETENTION (WATERTIGHT, BY OTHERS). 4. CONCRETE (NORMALWEIGHT): A. MIN. 28-DAY COMPRESSIVE STRENGTH: 6,000 PSI B. CEMENT: ASTM C150 5. STEEL REINFORCEMENT: ASTM A615 / A706 (GRADE 60), ASTM A1064 (GRADE 80) 6. REFERENCE STANDARDS: ASTM C913 & C890, ACI 318-14 SHIFTED INLET PIPE TO FIT PIPE OPENING WITHIN MODULE PAVING/OVERBURDEN, BY CONTRACTOR. STORMCAPTURE MODULES BY OLDCASTLE INFRASTRUCTURE. Ø4" TERMADUCT, TYPICAL.

COMPACTED FILL, SEE
INSTALLATION GUIDE, BY OTHERS. Ø1" VENT HOLE ONE SIDE ONLY. TYPICAL ELEVATION SCALE : 1/4" = 1'-0" NOTE: TERMADUCT INSERTS TO BE KNOCKED OUT AT SPECIFIED LOCATIONS ONLY (BY OTHERS). 9" 7"7' 0.50' MIN COVER 5.00' MAX COVER EL: 1073.25' EL: 1072.50' EL: 1064.92' EL: 1065.50' MIN TO MAX ALLOWABLE RIM RANGE: 1073.75'-1078.25' GEOTEXTILE FABRIC/LINER COMBINATION, SEE INSTALLATION GUIDE, BY OTHERS. WRAP GEOTEXTILE FABRIC/LINER COMBINATION 1' MINIMUM OVER TOP OF SYSTEM, BY OTHERS. CONTRACTOR TO ENSURE ADEQUATE BEARING SURFACE PROVIDED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 2" SAND BEDDING LAYER IS REQUIRED, BY OTHERS. 6X Ø30" HS-20 RATED MANWAY ACCESS AND RISERS/GRADE RINGS AS REQUIRED TO GRADE. 3.5' 3.5' Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/13/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 1 SYSTEM ID REV DESCRIPTION DATE LAYOUT CHANGE 9/16/22 JOB NUMBER: 22-733385-SC2 3.5-3.5_System 1_2022-0916 22-733385 2 REVIEWING NOTES 1. THIS SYSTEM HAS BEEN DESIGNED PER THE DESIGN PARAMETERS SPECIFIED IN THE DESIGN NOTES. REVIEWING ENGINEER SHALL VERIFY THAT THESE PARAMETERS MEET OR EXCEED PROJECT SPECIFIC REQUIREMENTS. IF SITE CONDITIONS DIFFER FROM NOTED DESIGN PARAMETERS, REVIEWING ENGINEER SHALL NOTIFY OLDCASTLE FOR POTENTIAL REDESIGN AND/OR PRICING ADJUSTMENTS. 2. REVIEWING ENGINEER SHALL VERIFY ALL PIPE PENETRATION LOCATIONS, SIZES, AND INVERTS. 3. REVIEWING ENGINEER SHALL VERIFY ALL MANWAY ACCESS LOCATIONS AND RIM ELEVATIONS. 4. THIS SYSTEM IS DESIGNED FOR A GROUNDWATER TABLE ELEVATION PER NOTE 2C, SHEET 1. REVIEWING ENGINEER SHALL VERIFY THAT THE DESIGN GROUNDWATER ELEVATION MEETS OR EXCEEDS SITE CONDITION REQUIREMENTS. NOTIFY OLDCASTLE IF SITE CONDITIONS VARY FROM WHAT HAS BEEN SPECIFIED FOR POTENTIAL SYSTEM DESIGN CHANGES AND/OR PRICING ADJUSTMENTS. 5. THIS SYSTEM HAS BEEN DESIGNED WITH A CONTAINMENT MEMBRANE. IF WATERTIGHT REQUIREMENTS ARE NOT NEEDED, REVIEWING ENGINEERING SHALL NOTIFY OLDCASTLE FOR POTENTIAL DESIGN CHANGES AND/OR PRICING ADJUSTMENTS. 6. DESIGN OF THE STORMCAPTURE PRECAST MODULE SYSTEM ASSUMES NO ADJACENT BUILDING(S), WALL(S), OR STRUCTURAL FOUNDATION(S) WITHIN A 1:1 INFLUENCE LINE FROM THE BOTTOM EDGE OF ANY SYSTEM MODULE. ANY SITE ELEMENTS BEYOND THIS ZONE OF INFLUENCE ARE ASSUMED TO HAVE NO IMPACT ON THE SYSTEM AND EXERT ZERO LATERAL SURCHARGE ONTO THE MODULES. THE CONTRACTOR SHALL VERIFY THAT ANY ADJACENT BUILDING(S), WALL(S), OR STRUCTURAL FOUNDATION(S) DO NOT LIE WITHIN THIS INFLUENCE ZONE OR DO NOT SURCHARGE THE PRECAST MODULES. 7. WRITTEN APPROVAL OF SUBMITTAL DRAWINGS ALONG WITH SIGNED PURCHASE ORDER REQUIRED FOR BEGINNING OF PRODUCT FABRICATION. ANY SYSTEM MODIFICATION POST-APPROVAL MAY RESULT IN CHANGE ORDER(S) AND/OR POTENTIAL DELIVERY DELAYS. WATERPROOFING & LINER, BY OTHERS 8" MIN. WIDE STRIP OF SELF-ADHESIVE OVER ENTIRE JOINT. PROVIDE MIN. 1' OVERLAP WHEN CONNECTING STRIPS. JOINT WRAP SUPPLIED BY OLDCASTLE AND INSTALLED BY OTHERS. SEE INSTALLATION NOTES 8 & 10. 14" GAP MIN. (3 4" MAX) BETWEEN STRUCTURES MODULE JOINT DETAIL SCALE: 1/2" = 1'-0" BUTYL RUBBER SEALANT (CONSEAL CS-102 OR EQUAL) PLACEMENT DETAIL NTS KEYWAYS MUST BE FREE OF DIRT, ROCKS, AND WATER. ROCKS AND DIRT PREVENT THE VAULT SECTIONS FROM SEATING AND SEALING PROPERLY. REMOVE ALL PROTECTIVE PAPER FROM RUBBER SEALANT MATERIAL. SPLICE RUBBER SEALANT MATERIAL WITH A "SIDE BY SIDE" JOINT, AWAY FROM CORNERS. CORNER SPLICING WILL NOT SEAL PROPERLY. INCORRECT - DO NOT OVERLAP THE RUBBER SEALANT MATERIAL AT SPLICE. CORRECT - INSTALL RUBBER SEALANT MATERIAL AT THE OUTER EDGE OF THE KEYWAY. RUBBER SEALANT SHOULD BE CONTINUOUS AROUND CORNERS. INCORRECT - DO NOT SPLICE RUBBER SEALANT MATERIAL AT A CORNER. RUBBER SEALANT SHOULD BE CONTINUOUS AROUND CORNERS. MAXIMUM EQUIPMENT OPERATING WEIGHT (OW) BY TRACK WIDTH TRACK WIDTH 12" 18" 24" 30" MIN TRACK LENGTH 8'-0" 10'-0" 12'-0" 14'-0" FILL DEPTH OW (LBS) OW (LBS) OW (LBS) OW (LBS) 0 35,000 45,000 52,500 54,500 1 35,000 45,000 56,000 60,500 2 35,000 45,000 56,000 64,000 3 76,000 78,500 83,500 88,000 4 94,000 100,000 106,000 113,000 5 100,000 116,000 132,000 149,000 NOTES: 1. IF CONSTRUCTION EQUIPMENT EXCEEDS THE ABOVE OPERATING WEIGHT LIMITS REFER TO INSTALLATION NOTE 3. 2. FOR WHEELED CONSTRUCTION EQUIPMENT LIMITS REFER TO INSTALLATION NOTE 3. 3. MINIMUM AXLE SPACING FOR ALL TRACK WIDTHS IS 6'-0". Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/13/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 1 SYSTEM ID REV DESCRIPTION DATE LAYOUT CHANGE 9/16/22 JOB NUMBER: 22-733385-SC2 3.5-3.5_System 1_2022-0916 22-733385 3 4-WAY SLINGS WITH MIN. 10' LEGS. BOTTOM MODULE LIFTING DETAIL N.T.S. 8T RING CLUTCH BY MEADOW BURKE TOP MODULE LIFTING DETAIL N.T.S. 4-WAY SLINGS WITH MIN. 10' LEGS. 8T RING CLUTCH BY MEADOW BURKE INSTALLATION NOTES 1. UNDERGROUND PRECAST CONCRETE SYSTEM INSTALLATION SHALL BE PER ASTM C891, “STANDARD PRACTICE FOR INSTALLATION OF UNDERGROUND PRECAST CONCRETE UTILITY STRUCTURES” AND PER OLDCASTLE. 2. MODULE SUBBASE OR SUBGRADE SHALL BE LEVEL/SCREEDED AND COMPACTED ADEQUATELY FOR REQUIRED BEARING CAPACITY PER DESIGN NOTE 2D, SHEET 1. CONTRACTOR AND/OR INSTALLING SUB-CONTRACTOR SHALL VERIFY THAT SOIL BEARING CONDITIONS MEET OR EXCEED DESIGN REQUIRED MINIMUMS PRIOR TO PLACEMENT AND INSTALLATION OF MODULES. 3. ANY CONSTRUCTION EQUIPMENT EXCEEDING NOTED DESIGN LOADING IS NOT PERMITTED OVER OR ADJACENT TO ANY MODULE WITHOUT FORMAL REVIEW AND WRITTEN APPROVAL BY OLDCASTLE ENGINEERING, ELSE PRODUCT WARRANTY MAY BE VOIDED. ANY DESIGN CONSTRAINT EXCEEDING THE DESIGN PARAMETERS NOTED ABOVE MAY REQUIRE CUSTOM STRUCTURAL DESIGN, SUBGRADE REVISIONS, AND/OR PRICING ADJUSTMENTS. 4. HEAVY VIBRATORY COMPACTION EQUIPMENT SHALL NOT BE OPERATED WITHIN 10 FEET OF MODULE EXTERIOR. 5. MINIMUM OF 0.50FT OF SOIL COVER REQUIRED FOR CONSTRUCTION EQUIPMENT OPERATION ON TOP OF SYSTEM. IT IS THE RESPONSIBILITY OF THE CONTRACTOR AND INSTALLING SUB-CONSTRACTOR TO ENSURE THAT NO MODULES ARE DAMAGED DURING CONSTRUCTION. 6. UNLESS NOTED OTHERWISE, ALL PIPE SUPPLIED AND INSTALLED BY OTHERS. 7. CONTRACTOR MAY MODIFY AT RISK ANY OLDCASTLE PRODUCT(S) IN THE FIELD OR AFTER DELIVERY WITHOUT FORMAL REVIEW AND WRITTEN APPROVAL BY OLDCASTLE ENGINEERING. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THAT ANY PRODUCT MODIFICATIONS DO NOT INVALIDATE THE PRODUCT WARRANTY. 8. MODULE PLACEMENT FIELD TOLERANCES SHALL NOT EXCEED 3/4" BETWEEN ADJACENT MODULES. IF MODULE GAP EXCEEDS 3/4", CONTRACTOR SHALL MAKE NECESSARY ADJUSTMENTS AND RESET MODULE(S) TO BRING WITHIN NOTED TOLERANCES. 9. CONTRACTOR IS RESPONSIBLE FOR PRODUCTS ONCE DELIVERED TO THE SITE. OLDCASTLE IS NOT RESPONSIBLE FOR OFFLOADING PRODUCTS, MAINTENANCE, AND INSTALLATION OF PRODUCTS ONCE THEY ARRIVE TO THE SITE. 10. CONTRACTOR SHALL INSTALL SYSTEM PER PROJECT WATERPROOFING AND SOILTIGHTNESS REQUIREMENTS. WATERPROOFING AND SOILTIGHTNESS INSTALLATION IS NOT BY OLDCASTLE AND OLDCASTLE WILL PROVIDE NO GUARANTEE FOR THIS COMPONENT OF SYSTEM INSTALLATION. HEAVIEST PICK WEIGHT = 25,280 LBS PLAN VIEW SCALE: 3/64" = 1'-0" GDDDDDDDDDDDDC CDAAAAAAAAAAB CAAAAAAAAAB CAAAAAAAAB CDAAAAAAB CAAAAAB CAAAAB CAAAB CDAB CB E Ø26" OPENING FOR Ø18" HDPE, INLET INVERT: 1070.00'. 3'-7" STORMCAPTURE MODULES BY OLDCASTLE INFRASTRUCTURE. INSIDE DIMENSIONS: 7' W x 15' L x 7' H, SYSTEM INVERT: 1065.50'. MODULE GAP, TYPICAL SEE MODULE JOINT DETAIL ON SHEET 3 OF 3. KNOCK OUT TERMADUCTS IN THESE LOCATIONS. 112'-314" 176'-212" 6X Ø30" MANWAY ACCESS S W E PLAN-N MODULE NOTES TYPE QUANTITY HEIGHT A 46 7' B 9 7' C 10 7' D 15 7' G 1 7' E 1 7' TOTAL 82 VOLUME = 64,322 CUBIC FEET Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/13/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 2 SYSTEM ID REV DESCRIPTION DATE - - JOB NUMBER: 22-733385-SC2 3.5-3.5_System 2 22-733385 1 DESIGN NOTES 1. LIVE LOADING CRITERIA: A. HL-93 & OUTRIGGER LOADING (75 PSI ON 2'X2' PAD). B. LATERAL LIVE LOAD SURCHARGE: 80 PSF (TO 8.00FT DEPTH) C. NO LATERAL SURCHARGE(S) FROM ANY ADJACENT BUILDINGS, WALLS, FOUNDATIONS, OR ANY ADDITIONAL SITE ELEMENTS. 2. SOIL LOADING CRITERIA: A. SOIL COVER DEPTH: 0.50FT (MIN.) - 5.00FT (MAX.) B. SOIL UNIT WEIGHT: 120 PCF C. ASSUMED WATER TABLE ELEVATION: 8.75FT ABOVE SYSTEM INVERT D. REQUIRED ALLOWABLE BEARING PRESSURE: 2,500 PSF E. EQUIVALENT LATERAL FLUID PRESSURE, ACTIVE: 45 PCF (DRAINED) F. EQUIVALENT LATERAL FLUID PRESSURE, AT-REST: 60 PCF (DRAINED) G. EQUIVALENT LATERAL FLUID PRESSURE, PASSIVE: 150 PCF (DRAINED) H. ASSUMED COEFFICIENT OF FRICTION: 0.40 I. SEISMIC LATERAL EARTH PRESSURES: 30.6H (APPLIED AS UNIFORM PRESSURE) 3. STORMCAPTURE MODULE TYPE: DETENTION (WATERTIGHT). 4. CONCRETE (NORMALWEIGHT): A. MIN. 28-DAY COMPRESSIVE STRENGTH: 6,000 PSI B. CEMENT: ASTM C150 5. STEEL REINFORCEMENT: ASTM A615 / A706 (GRADE 60), ASTM A1064 (GRADE 80) 6. REFERENCE STANDARDS: ASTM C913 & C890, ACI 318-14 PAVING/OVERBURDEN, BY CONTRACTOR. STORMCAPTURE MODULES BY OLDCASTLE INFRASTRUCTURE. Ø4" TERMADUCT, TYPICAL.

COMPACTED FILL, SEE
INSTALLATION GUIDE, BY OTHERS. Ø1" VENT HOLE ONE SIDE ONLY. TYPICAL ELEVATION SCALE : 1/4" = 1'-0" NOTE: TERMADUCT INSERTS TO BE KNOCKED OUT AT SPECIFIED LOCATIONS ONLY (BY OTHERS). 9" 7"7' 0.50' MIN COVER 5.00' MAX COVER EL: 1073.25' EL: 1072.50' EL: 1064.92' EL: 1065.50' MIN TO MAX ALLOWABLE RIM RANGE: 1073.75'-1078.25' GEOTEXTILE FABRIC/LINER COMBINATION, SEE INSTALLATION GUIDE, BY OTHERS. WRAP GEOTEXTILE FABRIC/LINER COMBINATION 1' MINIMUM OVER TOP OF SYSTEM, BY OTHERS. CONTRACTOR TO ENSURE ADEQUATE BEARING SURFACE PROVIDED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 2" SAND BEDDING LAYER IS REQUIRED, BY OTHERS. 6X Ø30" HS-20 RATED MANWAY ACCESS AND RISERS/GRADE RINGS AS REQUIRED TO GRADE. 3.5' 3.5' Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/13/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 2 SYSTEM ID REV DESCRIPTION DATE - - JOB NUMBER: 22-733385-SC2 3.5-3.5_System 2 22-733385 2 REVIEWING NOTES 1. THIS SYSTEM HAS BEEN DESIGNED PER THE DESIGN PARAMETERS SPECIFIED IN THE DESIGN NOTES. REVIEWING ENGINEER SHALL VERIFY THAT THESE PARAMETERS MEET OR EXCEED PROJECT SPECIFIC REQUIREMENTS. IF SITE CONDITIONS DIFFER FROM NOTED DESIGN PARAMETERS, REVIEWING ENGINEER SHALL NOTIFY OLDCASTLE FOR POTENTIAL REDESIGN AND/OR PRICING ADJUSTMENTS. 2. REVIEWING ENGINEER SHALL VERIFY ALL PIPE PENETRATION LOCATIONS, SIZES, AND INVERTS. 3. REVIEWING ENGINEER SHALL VERIFY ALL MANWAY ACCESS LOCATIONS AND RIM ELEVATIONS. 4. THIS SYSTEM IS DESIGNED FOR A GROUNDWATER TABLE ELEVATION PER NOTE 2C, SHEET 1. REVIEWING ENGINEER SHALL VERIFY THAT THE DESIGN GROUNDWATER ELEVATION MEETS OR EXCEEDS SITE CONDITION REQUIREMENTS. NOTIFY OLDCASTLE IF SITE CONDITIONS VARY FROM WHAT HAS BEEN SPECIFIED FOR POTENTIAL SYSTEM DESIGN CHANGES AND/OR PRICING ADJUSTMENTS. 5. THIS SYSTEM HAS BEEN DESIGNED WITH A CONTAINMENT MEMBRANE. IF WATERTIGHT REQUIREMENTS ARE NOT NEEDED, REVIEWING ENGINEERING SHALL NOTIFY OLDCASTLE FOR POTENTIAL DESIGN CHANGES AND/OR PRICING ADJUSTMENTS. 6. DESIGN OF THE STORMCAPTURE PRECAST MODULE SYSTEM ASSUMES NO ADJACENT BUILDING(S), WALL(S), OR STRUCTURAL FOUNDATION(S) WITHIN A 1:1 INFLUENCE LINE FROM THE BOTTOM EDGE OF ANY SYSTEM MODULE. ANY SITE ELEMENTS BEYOND THIS ZONE OF INFLUENCE ARE ASSUMED TO HAVE NO IMPACT ON THE SYSTEM AND EXERT ZERO LATERAL SURCHARGE ONTO THE MODULES. THE CONTRACTOR SHALL VERIFY THAT ANY ADJACENT BUILDING(S), WALL(S), OR STRUCTURAL FOUNDATION(S) DO NOT LIE WITHIN THIS INFLUENCE ZONE OR DO NOT SURCHARGE THE PRECAST MODULES. 7. WRITTEN APPROVAL OF SUBMITTAL DRAWINGS ALONG WITH SIGNED PURCHASE ORDER REQUIRED FOR BEGINNING OF PRODUCT FABRICATION. ANY SYSTEM MODIFICATION POST-APPROVAL MAY RESULT IN CHANGE ORDER(S) AND/OR POTENTIAL DELIVERY DELAYS. WATERPROOFING & LINER, BY OTHERS 8" MIN. WIDE STRIP OF SELF-ADHESIVE OVER ENTIRE JOINT. PROVIDE MIN. 1' OVERLAP WHEN CONNECTING STRIPS. JOINT WRAP SUPPLIED BY OLDCASTLE AND INSTALLED BY OTHERS. SEE INSTALLATION NOTES 8 & 10. 14" GAP MIN. (3 4" MAX) BETWEEN STRUCTURES MODULE JOINT DETAIL SCALE: 1/2" = 1'-0" BUTYL RUBBER SEALANT (CONSEAL CS-102 OR EQUAL) PLACEMENT DETAIL NTS KEYWAYS MUST BE FREE OF DIRT, ROCKS, AND WATER. ROCKS AND DIRT PREVENT THE VAULT SECTIONS FROM SEATING AND SEALING PROPERLY. REMOVE ALL PROTECTIVE PAPER FROM RUBBER SEALANT MATERIAL. SPLICE RUBBER SEALANT MATERIAL WITH A "SIDE BY SIDE" JOINT, AWAY FROM CORNERS. CORNER SPLICING WILL NOT SEAL PROPERLY. INCORRECT - DO NOT OVERLAP THE RUBBER SEALANT MATERIAL AT SPLICE. CORRECT - INSTALL RUBBER SEALANT MATERIAL AT THE OUTER EDGE OF THE KEYWAY. RUBBER SEALANT SHOULD BE CONTINUOUS AROUND CORNERS. INCORRECT - DO NOT SPLICE RUBBER SEALANT MATERIAL AT A CORNER. RUBBER SEALANT SHOULD BE CONTINUOUS AROUND CORNERS. MAXIMUM EQUIPMENT OPERATING WEIGHT (OW) BY TRACK WIDTH TRACK WIDTH 12" 18" 24" 30" MIN TRACK LENGTH 8'-0" 10'-0" 12'-0" 14'-0" FILL DEPTH OW (LBS) OW (LBS) OW (LBS) OW (LBS) 0 35,000 45,000 52,500 54,500 1 35,000 45,000 56,000 60,500 2 35,000 45,000 56,000 64,000 3 76,000 78,500 83,500 88,000 4 94,000 100,000 106,000 113,000 5 100,000 116,000 132,000 149,000 NOTES: 1. IF CONSTRUCTION EQUIPMENT EXCEEDS THE ABOVE OPERATING WEIGHT LIMITS REFER TO INSTALLATION NOTE 3. 2. FOR WHEELED CONSTRUCTION EQUIPMENT LIMITS REFER TO INSTALLATION NOTE 3. 3. MINIMUM AXLE SPACING FOR ALL TRACK WIDTHS IS 6'-0". Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/13/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 2 SYSTEM ID REV DESCRIPTION DATE - - JOB NUMBER: 22-733385-SC2 3.5-3.5_System 2 22-733385 3 4-WAY SLINGS WITH MIN. 10' LEGS. BOTTOM MODULE LIFTING DETAIL N.T.S. 8T RING CLUTCH BY MEADOW BURKE TOP MODULE LIFTING DETAIL N.T.S. 4-WAY SLINGS WITH MIN. 10' LEGS. 8T RING CLUTCH BY MEADOW BURKE INSTALLATION NOTES 1. UNDERGROUND PRECAST CONCRETE SYSTEM INSTALLATION SHALL BE PER ASTM C891, “STANDARD PRACTICE FOR INSTALLATION OF UNDERGROUND PRECAST CONCRETE UTILITY STRUCTURES” AND PER OLDCASTLE. 2. MODULE SUBBASE OR SUBGRADE SHALL BE LEVEL/SCREEDED AND COMPACTED ADEQUATELY FOR REQUIRED BEARING CAPACITY PER DESIGN NOTE 2D, SHEET 1. CONTRACTOR AND/OR INSTALLING SUB-CONTRACTOR SHALL VERIFY THAT SOIL BEARING CONDITIONS MEET OR EXCEED DESIGN REQUIRED MINIMUMS PRIOR TO PLACEMENT AND INSTALLATION OF MODULES. 3. ANY CONSTRUCTION EQUIPMENT EXCEEDING NOTED DESIGN LOADING IS NOT PERMITTED OVER OR ADJACENT TO ANY MODULE WITHOUT FORMAL REVIEW AND WRITTEN APPROVAL BY OLDCASTLE ENGINEERING, ELSE PRODUCT WARRANTY MAY BE VOIDED. ANY DESIGN CONSTRAINT EXCEEDING THE DESIGN PARAMETERS NOTED ABOVE MAY REQUIRE CUSTOM STRUCTURAL DESIGN, SUBGRADE REVISIONS, AND/OR PRICING ADJUSTMENTS. 4. HEAVY VIBRATORY COMPACTION EQUIPMENT SHALL NOT BE OPERATED WITHIN 10 FEET OF MODULE EXTERIOR. 5. MINIMUM OF 0.50FT OF SOIL COVER REQUIRED FOR CONSTRUCTION EQUIPMENT OPERATION ON TOP OF SYSTEM. IT IS THE RESPONSIBILITY OF THE CONTRACTOR AND INSTALLING SUB-CONSTRACTOR TO ENSURE THAT NO MODULES ARE DAMAGED DURING CONSTRUCTION. 6. UNLESS NOTED OTHERWISE, ALL PIPE SUPPLIED AND INSTALLED BY OTHERS. 7. CONTRACTOR MAY MODIFY AT RISK ANY OLDCASTLE PRODUCT(S) IN THE FIELD OR AFTER DELIVERY WITHOUT FORMAL REVIEW AND WRITTEN APPROVAL BY OLDCASTLE ENGINEERING. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THAT ANY PRODUCT MODIFICATIONS DO NOT INVALIDATE THE PRODUCT WARRANTY. 8. MODULE PLACEMENT FIELD TOLERANCES SHALL NOT EXCEED 3/4" BETWEEN ADJACENT MODULES. IF MODULE GAP EXCEEDS 3/4", CONTRACTOR SHALL MAKE NECESSARY ADJUSTMENTS AND RESET MODULE(S) TO BRING WITHIN NOTED TOLERANCES. 9. CONTRACTOR IS RESPONSIBLE FOR PRODUCTS ONCE DELIVERED TO THE SITE. OLDCASTLE IS NOT RESPONSIBLE FOR OFFLOADING PRODUCTS, MAINTENANCE, AND INSTALLATION OF PRODUCTS ONCE THEY ARRIVE TO THE SITE. 10. CONTRACTOR SHALL INSTALL SYSTEM PER PROJECT WATERPROOFING AND SOILTIGHTNESS REQUIREMENTS. WATERPROOFING AND SOILTIGHTNESS INSTALLATION IS NOT BY OLDCASTLE AND OLDCASTLE WILL PROVIDE NO GUARANTEE FOR THIS COMPONENT OF SYSTEM INSTALLATION. HEAVIEST PICK WEIGHT = 25,880 LBS AB AB BB BB BB BB BB B AD 48'-114" 192'-23 4" PLAN VIEW SCALE: 1/16" = 1'-0" STORMCAPTURE MODULES BY OLDCASTLE INFRASTRUCTURE. INSIDE DIMENSIONS: 7' W x 15' L x 7' H, SYSTEM INVERT: 1065.50'. 2X Ø30" MANWAY ACCESS RIM: 1078.00'. SEE DETAIL A, SHEET 2 OF 3. MODULE GAP, TYPICAL SEE MODULE JOINT DETAIL ON SHEET 3 OF 3. KNOCK OUT TERMADUCTS IN THESE LOCATIONS. B G F C BDC AACAB CAAF CF S W E PLAN-N MODULE NOTES TYPE QUANTITY HEIGHT A 8 7' B 16 7' C 5 7' D 2 7' F 3 7' G 1 7' TOTAL 35 VOLUME = 27,173 CUBIC FEET Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/22/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 3 SYSTEM ID REV DESCRIPTION DATE REVISED LAYOUT 9/16/22 JOB NUMBER: 22-733385-SC2 3.5-3.5_System 3 22-733385 1 DESIGN NOTES 1. LIVE LOADING CRITERIA: A. HL-93 & OUTRIGGER LOADING (75 PSI ON 2'X2' PAD). B. LATERAL LIVE LOAD SURCHARGE: 80 PSF (TO 8.00FT DEPTH) C. NO LATERAL SURCHARGE(S) FROM ANY ADJACENT BUILDINGS, WALLS, FOUNDATIONS, OR ANY ADDITIONAL SITE ELEMENTS. 2. SOIL LOADING CRITERIA: A. SOIL COVER DEPTH: 4.00FT (MIN.) - 6.00FT (MAX.) B. SOIL UNIT WEIGHT: 120 PCF C. ASSUMED WATER TABLE ELEVATION: 9.25FT ABOVE SYSTEM INVERT D. REQUIRED ALLOWABLE BEARING PRESSURE: 2,500 PSF E. EQUIVALENT LATERAL FLUID PRESSURE, ACTIVE: 45 PCF (DRAINED) F. EQUIVALENT LATERAL FLUID PRESSURE, AT-REST: 60 PCF (DRAINED) G. EQUIVALENT LATERAL FLUID PRESSURE, PASSIVE: 150 PCF (DRAINED) H. ASSUMED COEFFICIENT OF FRICTION: 0.40 I. SEISMIC LATERAL EARTH PRESSURES: 30.6H (APPLIED AS UNIFORM PRESSURE) 3. STORMCAPTURE MODULE TYPE: DETENTION (WATERTIGHT). 4. CONCRETE (NORMALWEIGHT): A. MIN. 28-DAY COMPRESSIVE STRENGTH: 6,000 PSI B. CEMENT: ASTM C150 5. STEEL REINFORCEMENT: ASTM A615 / A706 (GRADE 60), ASTM A1064 (GRADE 80) 6. REFERENCE STANDARDS: ASTM C913 & C890, ACI 318-14 PAVING/OVERBURDEN, BY CONTRACTOR. STORMCAPTURE MODULES BY OLDCASTLE INFRASTRUCTURE. Ø4" TERMADUCT, TYPICAL.

COMPACTED FILL, SEE
INSTALLATION GUIDE, BY OTHERS. Ø1" VENT HOLE ONE SIDE ONLY. TYPICAL ELEVATION SCALE : 1/4" = 1'-0" NOTE: TERMADUCT INSERTS TO BE KNOCKED OUT AT SPECIFIED LOCATIONS ONLY (BY OTHERS). 9" 7"7' 4.00' MIN COVER 6.00' MAX COVER EL: 1073.25' EL: 1072.50' EL: 1064.92' EL: 1065.50' MIN TO MAX ALLOWABLE RIM RANGE: 1077.25'-1079.25' GEOTEXTILE FABRIC/LINER COMBINATION, SEE INSTALLATION GUIDE, BY OTHERS. WRAP GEOTEXTILE FABRIC/LINER COMBINATION 1' MINIMUM OVER TOP OF SYSTEM, BY OTHERS. CONTRACTOR TO ENSURE ADEQUATE BEARING SURFACE PROVIDED IN ACCORDANCE WITH PROJECT SPECIFICATIONS. 2" SAND BEDDING LAYER IS REQUIRED, BY OTHERS. 2X Ø30" HS-20 RATED MANWAY ACCESS AND RISERS/GRADE RINGS AS REQUIRED TO GRADE. 3.5' 3.5' EL: 1073.25' (TOP OF SYSTEM) DETAIL A MODULE C & F SCALE: 1/4" = 1'-0" 4X Ø30"x12" GRADE RINGS. 1X Ø30"x3" GRADE RING. Ø30" HS-20 RATED FRAME & COVER 4.75' RIM: 1078.00' 30" 5" 12" 30" 5" 12" 30" 5" 12" 30" 5" 12" 3" 30" 5" Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/22/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 3 SYSTEM ID REV DESCRIPTION DATE REVISED LAYOUT 9/16/22 JOB NUMBER: 22-733385-SC2 3.5-3.5_System 3 22-733385 2 REVIEWING NOTES 1. THIS SYSTEM HAS BEEN DESIGNED PER THE DESIGN PARAMETERS SPECIFIED IN THE DESIGN NOTES. REVIEWING ENGINEER SHALL VERIFY THAT THESE PARAMETERS MEET OR EXCEED PROJECT SPECIFIC REQUIREMENTS. IF SITE CONDITIONS DIFFER FROM NOTED DESIGN PARAMETERS, REVIEWING ENGINEER SHALL NOTIFY OLDCASTLE FOR POTENTIAL REDESIGN AND/OR PRICING ADJUSTMENTS. 2. REVIEWING ENGINEER SHALL VERIFY ALL PIPE PENETRATION LOCATIONS, SIZES, AND INVERTS. 3. REVIEWING ENGINEER SHALL VERIFY ALL MANWAY ACCESS LOCATIONS AND RIM ELEVATIONS. 4. THIS SYSTEM IS DESIGNED FOR A GROUNDWATER TABLE ELEVATION PER NOTE 2C, SHEET 1. REVIEWING ENGINEER SHALL VERIFY THAT THE DESIGN GROUNDWATER ELEVATION MEETS OR EXCEEDS SITE CONDITION REQUIREMENTS. NOTIFY OLDCASTLE IF SITE CONDITIONS VARY FROM WHAT HAS BEEN SPECIFIED FOR POTENTIAL SYSTEM DESIGN CHANGES AND/OR PRICING ADJUSTMENTS. 5. THIS SYSTEM HAS BEEN DESIGNED WITH A CONTAINMENT MEMBRANE. IF WATERTIGHT REQUIREMENTS ARE NOT NEEDED, REVIEWING ENGINEERING SHALL NOTIFY OLDCASTLE FOR POTENTIAL DESIGN CHANGES AND/OR PRICING ADJUSTMENTS. 6. DESIGN OF THE STORMCAPTURE PRECAST MODULE SYSTEM ASSUMES NO ADJACENT BUILDING(S), WALL(S), OR STRUCTURAL FOUNDATION(S) WITHIN A 1:1 INFLUENCE LINE FROM THE BOTTOM EDGE OF ANY SYSTEM MODULE. ANY SITE ELEMENTS BEYOND THIS ZONE OF INFLUENCE ARE ASSUMED TO HAVE NO IMPACT ON THE SYSTEM AND EXERT ZERO LATERAL SURCHARGE ONTO THE MODULES. THE CONTRACTOR SHALL VERIFY THAT ANY ADJACENT BUILDING(S), WALL(S), OR STRUCTURAL FOUNDATION(S) DO NOT LIE WITHIN THIS INFLUENCE ZONE OR DO NOT SURCHARGE THE PRECAST MODULES. 7. WRITTEN APPROVAL OF SUBMITTAL DRAWINGS ALONG WITH SIGNED PURCHASE ORDER REQUIRED FOR BEGINNING OF PRODUCT FABRICATION. ANY SYSTEM MODIFICATION POST-APPROVAL MAY RESULT IN CHANGE ORDER(S) AND/OR POTENTIAL DELIVERY DELAYS. WATERPROOFING & LINER, BY OTHERS 8" MIN. WIDE STRIP OF SELF-ADHESIVE OVER ENTIRE JOINT. PROVIDE MIN. 1' OVERLAP WHEN CONNECTING STRIPS. JOINT WRAP SUPPLIED BY OLDCASTLE AND INSTALLED BY OTHERS. SEE INSTALLATION NOTES 8 & 10. 14" GAP MIN. (3 4" MAX) BETWEEN STRUCTURES MODULE JOINT DETAIL SCALE: 1/2" = 1'-0" BUTYL RUBBER SEALANT (CONSEAL CS-102 OR EQUAL) PLACEMENT DETAIL NTS KEYWAYS MUST BE FREE OF DIRT, ROCKS, AND WATER. ROCKS AND DIRT PREVENT THE VAULT SECTIONS FROM SEATING AND SEALING PROPERLY. REMOVE ALL PROTECTIVE PAPER FROM RUBBER SEALANT MATERIAL. SPLICE RUBBER SEALANT MATERIAL WITH A "SIDE BY SIDE" JOINT, AWAY FROM CORNERS. CORNER SPLICING WILL NOT SEAL PROPERLY. INCORRECT - DO NOT OVERLAP THE RUBBER SEALANT MATERIAL AT SPLICE. CORRECT - INSTALL RUBBER SEALANT MATERIAL AT THE OUTER EDGE OF THE KEYWAY. RUBBER SEALANT SHOULD BE CONTINUOUS AROUND CORNERS. INCORRECT - DO NOT SPLICE RUBBER SEALANT MATERIAL AT A CORNER. RUBBER SEALANT SHOULD BE CONTINUOUS AROUND CORNERS. MAXIMUM EQUIPMENT OPERATING WEIGHT (OW) BY TRACK WIDTH TRACK WIDTH 12" 18" 24" 30" MIN TRACK LENGTH 8'-0" 10'-0" 12'-0" 14'-0" FILL DEPTH OW (LBS) OW (LBS) OW (LBS) OW (LBS) 0 35,000 45,000 52,500 54,500 1 35,000 45,000 56,000 60,500 2 35,000 45,000 56,000 64,000 3 76,000 78,500 83,500 88,000 4 94,000 100,000 106,000 113,000 5 100,000 116,000 132,000 149,000 NOTES: 1. IF CONSTRUCTION EQUIPMENT EXCEEDS THE ABOVE OPERATING WEIGHT LIMITS REFER TO INSTALLATION NOTE 3. 2. FOR WHEELED CONSTRUCTION EQUIPMENT LIMITS REFER TO INSTALLATION NOTE 3. 3. MINIMUM AXLE SPACING FOR ALL TRACK WIDTHS IS 6'-0". Detention/ Infiltration Ph: 800.579.8819 | www.oldcastleinfrastructure.com/stormwater THIS DOCUMENT IS THE PROPERTY OF OLDCASTLE INFRASTRUCTURE, INC. IT IS CONFIDENTIAL, SUBMITTED FOR REFERENCE PURPOSES ONLY AND SHALL NOT BE USED IN ANY WAY INJURIOUS TO THE INTERESTS OF, OR WITHOUT THE WRITTEN PERMISSION OF OLDCASTLE INFRASTRUCTURE, INC. COPYRIGHT © 2022 OLDCASTLE INFRASTRUCTURE, INC. ALL RIGHTS RESERVED. 3 070-FO PPS CDH CDH - DRAWING NAME OF SHEET MFG DRAWN ENGINEER CHECKED 6/22/22 DATE SALES ORDER KIMLEY-HORN & ASSOCIATES LMC APARTMENTS - MURIETTA, CA STORMCAPTURE ® DETENTION SYSTEM JOB NAME: CUSTOMER: System 3 SYSTEM ID REV DESCRIPTION DATE REVISED LAYOUT 9/16/22 JOB NUMBER: 22-733385-SC2 3.5-3.5_System 3 22-733385 3 4-WAY SLINGS WITH MIN. 10' LEGS. BOTTOM MODULE LIFTING DETAIL N.T.S. 8T RING CLUTCH BY MEADOW BURKE TOP MODULE LIFTING DETAIL N.T.S. 4-WAY SLINGS WITH MIN. 10' LEGS. 8T RING CLUTCH BY MEADOW BURKE INSTALLATION NOTES 1. UNDERGROUND PRECAST CONCRETE SYSTEM INSTALLATION SHALL BE PER ASTM C891, “STANDARD PRACTICE FOR INSTALLATION OF UNDERGROUND PRECAST CONCRETE UTILITY STRUCTURES” AND PER OLDCASTLE. 2. MODULE SUBBASE OR SUBGRADE SHALL BE LEVEL/SCREEDED AND COMPACTED ADEQUATELY FOR REQUIRED BEARING CAPACITY PER DESIGN NOTE 2D, SHEET 1. CONTRACTOR AND/OR INSTALLING SUB-CONTRACTOR SHALL VERIFY THAT SOIL BEARING CONDITIONS MEET OR EXCEED DESIGN REQUIRED MINIMUMS PRIOR TO PLACEMENT AND INSTALLATION OF MODULES. 3. ANY CONSTRUCTION EQUIPMENT EXCEEDING NOTED DESIGN LOADING IS NOT PERMITTED OVER OR ADJACENT TO ANY MODULE WITHOUT FORMAL REVIEW AND WRITTEN APPROVAL BY OLDCASTLE ENGINEERING, ELSE PRODUCT WARRANTY MAY BE VOIDED. ANY DESIGN CONSTRAINT EXCEEDING THE DESIGN PARAMETERS NOTED ABOVE MAY REQUIRE CUSTOM STRUCTURAL DESIGN, SUBGRADE REVISIONS, AND/OR PRICING ADJUSTMENTS. 4. HEAVY VIBRATORY COMPACTION EQUIPMENT SHALL NOT BE OPERATED WITHIN 10 FEET OF MODULE EXTERIOR. 5. MINIMUM OF 0.50FT OF SOIL COVER REQUIRED FOR CONSTRUCTION EQUIPMENT OPERATION ON TOP OF SYSTEM. IT IS THE RESPONSIBILITY OF THE CONTRACTOR AND INSTALLING SUB-CONSTRACTOR TO ENSURE THAT NO MODULES ARE DAMAGED DURING CONSTRUCTION. 6. UNLESS NOTED OTHERWISE, ALL PIPE SUPPLIED AND INSTALLED BY OTHERS. 7. CONTRACTOR MAY MODIFY AT RISK ANY OLDCASTLE PRODUCT(S) IN THE FIELD OR AFTER DELIVERY WITHOUT FORMAL REVIEW AND WRITTEN APPROVAL BY OLDCASTLE ENGINEERING. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THAT ANY PRODUCT MODIFICATIONS DO NOT INVALIDATE THE PRODUCT WARRANTY. 8. MODULE PLACEMENT FIELD TOLERANCES SHALL NOT EXCEED 3/4" BETWEEN ADJACENT MODULES. IF MODULE GAP EXCEEDS 3/4", CONTRACTOR SHALL MAKE NECESSARY ADJUSTMENTS AND RESET MODULE(S) TO BRING WITHIN NOTED TOLERANCES. 9. CONTRACTOR IS RESPONSIBLE FOR PRODUCTS ONCE DELIVERED TO THE SITE. OLDCASTLE IS NOT RESPONSIBLE FOR OFFLOADING PRODUCTS, MAINTENANCE, AND INSTALLATION OF PRODUCTS ONCE THEY ARRIVE TO THE SITE. 10. CONTRACTOR SHALL INSTALL SYSTEM PER PROJECT WATERPROOFING AND SOILTIGHTNESS REQUIREMENTS. WATERPROOFING AND SOILTIGHTNESS INSTALLATION IS NOT BY OLDCASTLE AND OLDCASTLE WILL PROVIDE NO GUARANTEE FOR THIS COMPONENT OF SYSTEM INSTALLATION. HEAVIEST PICK WEIGHT = 25,280 LBS 1 WEATHER
the Storm
StormCapture® System
STORM
WATER
STORMCAPTURE®
Modular Stormwater Management System for Infiltration,
Detention, Retention, Treatment and Harvesting
Backfill Requirements–Modules are
typically backfilled with existing site
materials.

Custom Sizes–Available in internal
heights from 2’ to 14’ to best-fit
site needs.

Design Assistance–Let our
professionals customize for your
specific needs.

Easy to Install–Fast installation with
minimal handling.

Large Storage Capacity–Smaller
system footprint for greater design
flexibility.

Modular Design–Precast concrete
modules measure 8’ wide by 16’ long
OD, (7’ x 15’ ID), with customizable
heights.

Traffic Loading–Only requires 6” of
cover.

Treatment Train–Available with
pre-treatment, post-treatment, or both.

StormCapture® System
2 StormCapture Advantages
Fast Service – Get help from our national
engineering team with layouts and
specifications to meet your project's
requirements.

Cost Savings – Highly competitive
installation and maintenance costs.

Codes – Designed to the latest codes for
HS-20-44 (full truckload plus impact).

Sustainability – The system is
maintainable for long-term sustainability.

LID – Ideal for Low-Impact Development
(LID).

LEED – Manufactured locally with
recycled material for potential LEED
credits. LEED 2009 for New Construction
& Major Renovation, U.S. Green Building
Council: Sustainable Sites (5.1, 5.2, 6.1,

6.2), Materials & Resources (4.1, 4.2, 5.1,

5.2), Water Efficiency (1.1, 1.2, 3.1, 3.2).

Same-day staging and installation of StormCapture project.

StormCapture modules are designed for HS20 traffic loading.

StormCapture offers fast installation with minimal handling.

StormCapture detention system installed beneath office parking lot.

StormCapture offers numerous options for
infiltration, detention, retention, treatment and
harvesting to solve your stormwater management
needs. Let us show you how we can design and
customize a solution for you.

Maintenance Module
Detention
Filtration
Pre-Treatment
Applications

RETENTION

INFILTRATION

HARVESTING

TREATMENT
Maintenance Module
Pump Module
Modules with
Floor Openings
Harvesting Equipment
Skid with Sanitation,
Pumps and Controls
Pre-Treatment

DETENTION
4 PERMECAPTURE CISTERNS

INSTALLED IN JUST ONE DAY
Modules with
HydraPorts™
Permeable Interlocking
Concrete Pavers
Inlet
Pump Outlet
4 Link Slab - Unique design allows for significant
reduction in the quantity of modules and associated
costs, while providing maximum storage capacity.

StormCapture Modules
SC1 - Single piece modules can be used for
applications from 2' to 7' tall. Appropriate for
cisterns, infiltration, detention and retention
systems. SC1 modules are typically installed on
minimally compacted gravel base, depending on
specific project requirements.

SC2 - Two piece modules can be used for
applications from 7' to 14' tall for maximum
storage capacity in a condensed footprint.

Appropriate for cisterns, infiltration, detention
and retention systems. SC2 modules are typically
installed on compacted native subgrade.

Contact us today to start
designing your system!
Module Sizes & Capacities
Endless Configurations
Modules are 8'x16' outside dimensions.

Capacity varies by configuration of openings.

INSIDE DIMENSIONS (FT) CAPACITY RANGE (FT3)
7x15x2 210-212
7x15x3 315-325
7x15x4 420-442
7x15x5 525-559
7x15x6 630-678
7x15x7 735-793
7x15x8 840-910
INSIDE DIMENSIONS (FT) CAPACITY RANGE (FT3)
7x15x9 945-1,027
7x15x10 1,050-1,140
7x15x11 1,155 - 1,257
7x15x12 1,260 - 1,374
7x15x13 1,365 -1,491
7x15x14 1,470 - 1,608
6 © 2018 Oldcastle Infrastructure
(800) 579-8819
oldcastleinfrastructure.com
Water
Preliminary Water Quality Management Plan (WQMP)
LMC Murrieta Apartments
- 49 -
Appendix 8: Source Control
Pollutant Sources/Source Control Checklist
Include a copy of the completed Pollutant Sources/Source Control Checklist used to document Source Control BMPs in Section H of this Template.

Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 1 of 10
How to use this worksheet (also see instructions in Section H of the 2018 SMR WQMP Template):

1. Review Column 1 and identify which of these potential sources of stormwater pollutants apply to your site. Check each box that applies.

2. Review Column 2 and incorporate all of the corresponding applicable BMPs in your WQMP Exhibit.

3. Review Columns 3 and 4 and incorporate all of the corresponding applicable permanent controls and operational BMPs in your WQMP. Use the format shown in Table H.1 of this WQMP Template. Describe your specific BMPs in an accompanying narrative, and explain any special conditions or situations that required omitting BMPs or substituting alternative BMPs for those shown here.

Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 2 of 10

State that final landscape plans will
accomplish all of the following.
 Preserve existing native trees,
shrubs, and ground cover to the
maximum extent possible.
 Design landscaping to minimize
irrigation and runoff, to promote
surface infiltration where
appropriate, and to minimize the
use of fertilizers and pesticides that
can contribute to stormwater
pollution.
 Where landscaped areas are used to
retain or detain stormwater, specify
plants that are tolerant of saturated
soil conditions.
 Consider using pest-resistant plants,
especially adjacent to hardscape. To
insure successful establishment,
select plants appropriate to site soils,
slopes, climate, sun, wind, rain, land
use, air movement, ecological
consistency, and plant interactions.
 Maintain landscaping using minimum
or no pesticides.
 See applicable operational BMPs in
“What you should know
for…..Landscape and Gardening” at:
http://www.rcwatershed.org/about/
materials-library/#1450469138395-bb76dd39-
d810
 Provide IPM information to new
owners, lessees and operators.

Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 3 of 10

IF THESE SOURCES WILL BE
ON THE PROJECT SITE … … THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE 1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
 E. Pools, spas, ponds,
decorative fountains,
and other water
features.
 Show location of water feature and
a sanitary sewer cleanout in an
accessible area within 10 feet.
(Exception: Public pools must be
plumbed according to County
Department of Environmental
Health Guidelines.)
If the Co-Permittee requires pools
to be plumbed to the sanitary
sewer, place a note on the plans
and state in the narrative that this
connection will be made according
to local requirements.
 See applicable operational BMPs in
“Guidelines for Maintaining Your
Swimming Pool, Jacuzzi and
Garden Fountain” at: http://
www.rcwatershed.org/about/materialslibrary/#1450469201433-f5f358c9-6008  F. Food service  For restaurants, grocery stores, and other food service operations, show
location (indoors or in a covered
area outdoors) of a floor sink or
other area for cleaning floor mats,
containers, and equipment.
 On the drawing, show a note that
this drain will be connected to a
grease interceptor before
discharging to the sanitary sewer.
 Describe the location and features
of the designated cleaning area.
 Describe the items to be cleaned in
this facility and how it has been
sized to insure that the largest
items can be accommodated.
 See the brochure, “The Food Service
Industry Best Management Practices
for: Restaurants, Grocery Stores,
Delicatessens and Bakeries” at http://
www.rcwatershed.org/about/materialslibrary/#1450389926766-61e8af0b-53a9 Provide this brochure to new site
owners, lessees, and operators.
 G. Refuse areas  Show where site refuse and
recycled materials will be handled
and stored for pickup. See local
municipal requirements for sizes
and other details of refuse areas.
 If dumpsters or other receptacles
are outdoors, show how the
designated area will be covered,
graded, and paved to prevent runon and show locations of berms to prevent runoff from the area.
 Any drains from dumpsters,
compactors, and tallow bin areas
shall be connected to a grease
removal device before discharge to
sanitary sewer.
 State how site refuse will be
handled and provide supporting
detail to what is shown on plans.
 State that signs will be posted on or
near dumpsters with the words “Do
not dump hazardous materials
here” or similar.
 State how the following will be
implemented:

Provide adequate number of
receptacles. Inspect receptacles
regularly; repair or replace leaky
receptacles. Keep receptacles covered.

Prohibit/prevent dumping of liquid or
hazardous wastes. Post “no hazardous
materials” signs. Inspect and pick up
litter daily and clean up spills
immediately. Keep spill control
materials available on-site. See Fact
Sheet SC-34, “Waste Handling and
Disposal” in the CASQA Stormwater
Quality Handbooks at
www.cabmphandbooks.com
Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 4 of 10

No processes to drain to exterior or
to storm drain system.”
 See Fact Sheet SC-10, “NonStormwater Discharges” in the CASQA Stormwater Quality
Handbooks at
www.cabmphandbooks.com
See the brochure “Industrial &
Commercial Facilities Best Management
Practices for: Industrial, Commercial
Facilities” at: http://www.rcwatershed.org/
about/materials-library/
#1450389926766-61e8af0b-53a9
 I. Outdoor storage of
equipment or materials.
(See rows J and K for
source control
measures for vehicle
cleaning, repair, and
maintenance.)
 Show any outdoor storage areas,
including how materials will be
covered. Show how areas will be
graded and bermed to prevent runon or run-off from area.  Storage of non-hazardous liquids
shall be covered by a roof and/or
drain to the sanitary sewer system,
and be contained by berms, dikes,
liners, or vaults.
 Storage of hazardous materials and
wastes must be in compliance with
the local hazardous materials
ordinance and a Hazardous
Materials Management Plan for the
site.
 Include a detailed description of
materials to be stored, storage
areas, and structural features to
prevent pollutants from entering
storm drains.

Where appropriate, reference
documentation of compliance with
the requirements of Hazardous
Materials Programs for:
 Hazardous Waste Generation
 Hazardous Materials Release
Response and Inventory
 California Accidental Release
(CalARP)
 Aboveground Storage Tank
 Uniform Fire Code Article 80
Section 103(b) & (c) 1991
 Underground Storage Tank
www.cchealth.org/groups/hazmat/
 See the Fact Sheets SC-31, “Outdoor
Liquid Container Storage” and SC-33,
“Outdoor Storage of Raw Materials ”
in the CASQA Stormwater Quality
Handbooks at
www.cabmphandbooks.com
Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 5 of 10

Describe operational measures to
implement the following (if
applicable):
 Washwater from vehicle and
equipment washing operations shall
not be discharged to the storm drain
system. Refer to “Outdoor Cleaning
Activities and Professional Mobile
Service Providers” for many of the
Potential Sources of Runoff Pollutants
categories below. Brochure can be
found at: http://www.rcwatershed.org/
about/materials-library/
#1450389926766-61e8af0b-53a9
 Car dealerships and similar may
rinse cars with water only.

Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 6 of 10

In the Stormwater Control Plan, note
that all of the following restrictions
apply to use the site:
 No person shall dispose of, nor permit
the disposal, directly or indirectly of
vehicle fluids, hazardous materials, or
rinsewater from parts cleaning into
storm drains.
 No vehicle fluid removal shall be
performed outside a building, nor on
asphalt or ground surfaces, whether
inside or outside a building, except in
such a manner as to ensure that any
spilled fluid will be in an area of
secondary containment. Leaking
vehicle fluids shall be contained or
drained from the vehicle immediately.
 No person shall leave unattended drip
parts or other open containers
containing vehicle fluid, unless such
containers are in use or in an area of
secondary containment.

Refer to “Automotive Maintenance &
Car Care Best Management Practices
for Auto Body Shops, Auto Repair
Shops, Car Dealerships, Gas Stations
and Fleet Service Operations;
"Outdoor Cleaning Activities;" and
"Professional Mobile Service
Providers" for many of the Potential
Sources of Runoff Pollutants.

Brochures can be found at: http://
www.rcwatershed.org/about/materialslibrary/
#1450389926766-61e8af0b-53a9
Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 7 of 10

Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 8 of 10

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 9 of 10

Appendix 8

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T 2018 SMR WQMP TEMPLATE Appendix 8 – Page 10 of 10

Preliminary Water Quality Management Plan (WQMP)
LMC Murrieta Apartments
- 50 -
Appendix 9: O&M
Operation and Maintenance Plan and Documentation of Finance, Maintenance and Recording Mechanisms Include the completed Operation and Maintenance Plan in this Appendix along with additional documentation of Finance and Maintenance Recording Mechanisms for the site. Refer to Sections 3.10 and 5 of the SMR WQMP and Section J of this Template. A signed agreement will be provided in final design.

RECORDING REQUESTED BY AND
WHEN RECORDED RETURN TO:

City of Murrieta
1 Town Square
Murrieta, CA 92562
Above Space for Recorder’s Use

DECLARATION OF WATER QUALITY MANAGEMENT PLAN RESTRICTIVE

COVENANT
This Declaration of Water Quality Management Plan Restrictive Covenant (this “Covenant”) is made this ___ day of _________, 2022 by Marsca Properties (“Owner”) A. The Owner of that certain real property (the “Property”) located in the City of Murrieta, California (“City”), more particularly described in Exhibit “A” attached hereto and incorporated herein by this reference and has proposed that the Property be developed by Owner in accordance with the governmental approvals issued by the City and other governmental or quasi-governmental agencies having jurisdiction over the Property.

B. In accordance with the Murrieta Municipal Code, applicable State of California statutes, and other ordinances and regulations (collectively, the “Stormwater Laws”) of City and the State of California which regulate land development and urban runoff, the Owners have prepared and submitted to the City a Final Water Quality Management Plan (“WQMP”), which is on file with City’s Engineering Department and a copy of which is required to be kept on the Property. The WQMP proposes that stormwater runoff from the Property be managed by the use of the stormwater management facilities, which are identified in the WQMP as “Best Management Practices” or “BMP’s.” The precise location(s) and extent of the BMP’s are indicated within the WQMP. The WQMP specifies the manner and standards by which the BMP’s must be repaired and maintained in order to retain their effectiveness.

C. The purpose of this Covenant is to assure that the BMP’s are adequately maintained by creating obligations which are enforceable against the Owner and its successors in interest in the Property. The Owner intends that these obligations be enforceable notwithstanding other provisions related to BMP maintenance which are provided by law.

COVENANT TERMS, CONDITIONS, AND RESTRICTIONS
In consideration of the above recitals and the mutual covenants, terms, conditions and restrictions contained herein, and pursuant to the laws of the United States, the State of California and the City of Murrieta Municipal Code, Owner hereby declares the Property shall be held, transferred, conveyed, leased, occupied or otherwise disposed of and used subject to the

Page 2 ends

following restrictive covenants (and incorporating the above recitals herein by reference), which shall run with the land and be binding on the Owner’s heirs, successors in interest, administrators, assigns, lessees or other occupiers and users (collectively “Successors”) of the Property or any portion thereof.

1. Maintenance of Stormwater Management Facilities.

1.1. Owner agrees, for themselves and their successors in interest to all or any portion of the Property, to comply in all respects with the requirements of the Stormwater Laws and the WQMP with regards to the construction and maintenance of BMP’s designated in the WQMP. The Owner and its Successors, in particular agree to perform, at its sole cost, expense and liability, all inspections, cleaning, repairs, servicing, and maintenance with respect to all of the BMP’s listed in Exhibit “B” attached hereto and incorporated herein by this reference (the “Maintenance Activities”). The Owner and its Successors shall initiate, perform and complete all Maintenance Activities at the required time, without request or demand from the City, or any other agency. Owner and its Successors shall keep a report of any inspections and/or maintenance of the BMP’s for review at any time by City or the Water Quality Board for the region. The Owner and its Successors further agree that Maintenance Activities shall include replacement or modification of the BMP’s in the event of failure. Replacement shall be with an identical type, size and model of BMP subject to applicable Stormwater Laws, except that:

A. The City Engineer may authorize substitution of an alternative BMP if he or she determines that it will function as well as the failed BMP; or B. If the failure of the BMP, in the reasonable judgment of the City Engineer indicates that the BMP in use is inappropriate or inadequate to the circumstances, the BMP must be modified or replaced with an upgraded BMP to prevent future failure.

1.2. The Owner and its Successors shall, at all times, be subject to the Stormwater Laws with respect to the City’s right of entry, inspection and maintenance or abatement.

2. Covenant Binds Successors and Runs with the Property. It is understood and agreed that the terms, covenants and conditions herein contained shall constitute covenants running with the land and shall be binding upon the heirs, executors, administrators, successors and assigns of the Owner and its Successors, and shall be deemed to be for the benefit of all persons owning any interest in the Property. It is the intent of the Owner that this Covenant may be recorded and shall be binding upon all persons purchasing or otherwise acquiring all or any lot, unit or other portion of the Property who shall be deemed to have consented to and become bound by all the provisions hereof.

3. Amendment and Release. The terms of this Covenant may be modified only by a written amendment approved and signed by City and by the Owner or its Successors in interest.

This Covenant may be terminated and Owner and its Successors released from the

Page 3 ends

covenants set forth herein by a written release which City may execute if it determines that another mechanism will assure the ongoing maintenance of the BMP’s and transfers of ownership, or that it is no longer necessary to assure such maintenance and transfers of ownership.

4. Governing Law and Severability. This Covenant shall be governed by the laws of the State of California. Venue in any action related to this Covenant shall be in the Superior Court of the State of California, County of Riverside. In the event that any of the provisions of this Covenant are held to be unenforceable or invalid by any court of competent jurisdiction, the validity, and enforceability of the remaining provisions shall not be affected thereby.

5. Copy of Final WQMP. A copy of the Final WQMP must be kept on the Property at all times.
[SIGNATURES FOLLOW ON NEXT PAGE]

Page 4 ends

IN WITNESS WHEREOF, the Owner has executed this Covenant on the day and year first written above.
“OWNER”:

Lennar Multifamily Communities, LLC
95 Enterprise, Suite 200
Aliso Viejo, CA 92656
By:

Name:

Its:

EXHIBIT “A”

PROPERTY
EXHIBIT “B”

BEST MANAGEMENT PRACTICES
Modular Wetlands® Linear
A Stormwater Biofiltration Solution

OPERATION & MAINTENANCE
MANUAL
www.modularwetlands.com

Inspection Guidelines for
Modular Wetland System - Linear
Inspection Summary
o Inspect Pre-Treatment, Biofiltration and Discharge Chambers – average inspection interval is 6 to 12 months.
 (15 minute average inspection time).
o NOTE: Pollutant loading varies greatly from site to site and no two sites are the same. Therefore, the first year requires inspection monthly during the wet season and every other month during the dry season in order to observe and record the amount of pollutant loading the system is receiving.

System Diagram

Access to separation chamber
and pre-filter cartridges
1 Pre-treatment Chamber
2 Biofiltration Chamber
3 Discharge Chamber
Access to discharge
chamber and orifice control
www.modularwetlands.com
Inspection Overview
As with all stormwater BMPs inspection and maintenance on the MWS Linear is necessary.

Stormwater regulations require that all BMPs be inspected and maintained to ensure they are operating as designed to allow for effective pollutant removal and provide protection to receiving water bodies. It is recommended that inspections be performed multiple times during the first year to assess the site specific loading conditions. This is recommended because pollutant loading and pollutant characteristics can vary greatly from site to site. Variables such as nearby soil erosion or construction sites, winter sanding on roads, amount of daily traffic and land use can increase pollutant loading on the system. The first year of inspections can be used to set inspection and maintenance intervals for subsequent years to ensure appropriate maintenance is provided. Without appropriate maintenance a BMP will exceed its storage capacity which can negatively affect its continued performance in removing and retaining captured pollutants.

Inspection Equipment
Following is a list of equipment to allow for simple and effective inspection of the MWS Linear:
 Modular Wetland Inspection Form
 Flashlight
 Manhole hook or appropriate tools to remove access hatches and covers  Appropriate traffic control signage and procedures
 Measuring pole and/or tape measure.
 Protective clothing and eye protection.
 7/16” open or closed ended wrench.
 Large permanent black marker (initial inspections only – first year)  Note: entering a confined space requires appropriate safety and certification. It is generally not required for routine inspections of the system.
www.modularwetlands.com
Inspection Steps
The core to any successful stormwater BMP maintenance program is routine inspections. The inspection steps required on the MWS Linear are quick and easy. As mentioned above the first year should be seen as the maintenance interval establishment phase. During the first year more frequent inspections should occur in order to gather loading data and maintenance requirements for that specific site. This information can be used to establish a base for long term inspection and maintenance interval requirements.

The MWS Linear can be inspected though visual observation without entry into the system. All necessary pre-inspection steps must be carried out before inspection occurs, especially traffic control and other safety measures to protect the inspector and near-by pedestrians from any dangers associated with an open access hatch or manhole. Once these access covers have been safely opened the inspection process can proceed:
 Prepare the inspection form by writing in the necessary information including project name, location, date & time, unit number and other info (see inspection form).  Observe the inside of the system through the access hatches. If minimal light is available and vision into the unit is impaired utilize a flashlight to see inside the system and all of its chambers.
 Look for any out of the ordinary obstructions in the inflow pipe, pre-treatment chamber, biofiltration chamber, discharge chamber or outflow pipe. Write down any observations on the inspection form.
 Through observation and/or digital photographs estimate the amount of trash, debris and sediment accumulated in the pre-treatment chamber. Utilizing a tape measure or measuring stick estimate the amount of trash, debris and sediment in this chamber. Record this depth on the inspection form.
www.modularwetlands.com
 Through visual observation inspect the condition of the pre-filter cartridges. Look for excessive build-up of sediments on the cartridges, any build-up on the top of the cartridges, or clogging of the holes. Record this information on the inspection form. The pre-filter cartridges can further be inspected by removing the cartridge tops and assessing the color of the BioMediaGREEN filter cubes (requires entry into pre-treatment chamber – see notes above regarding confined space entry). Record the color of the material. New material is a light green in color. As the media becomes clogged it will turn darker in color, eventually becoming dark brown or black. Using the below color indicator record the percentage of media exhausted.

The biofiltration chamber is generally maintenance free due to the system’s advanced pretreatment chamber. For units which have open planters with vegetation it is recommended that the vegetation be inspected. Look for any plants that are dead or showing signs of disease or other negative stressors. Record the general health of the plants on the inspection and indicate through visual observation or digital photographs if trimming of the vegetation is needed.

The discharge chamber houses the orifice control structure, drain down filter and is connected to the outflow pipe. It is important to check to ensure the orifice is in proper operating conditions and free of any obstructions. It is also important to assess the condition of the drain down filter media which utilizes a block form of the BioMediaGREEN. Assess in the same manner as the cubes in the Pre-Filter Cartridge as mentioned above. Generally, the discharge chamber will be clean and free of debris. Inspect the water marks on the side walls. If possible, inspect the discharge chamber during a rain event to assess the amount of flow leaving the system while it is at 100% capacity (pre-treatment chamber water level at peak hydraulic grade lines or HGL). The water level of the flowing water should be compared to the watermark level on the side walls which is an indicator of the highest discharge rate the system achieved when initially installed. Record on the form is there is any difference in level from watermark in inches.
www.modularwetlands.com
• NOTE: During the first few storms the water level in the outflow chamber should be observed and a 6 inch long horizontal watermark line drawn (using a large permanent marker) at the water level in the discharge chamber while the system is operating at 100% capacity. The diagram below illustrates where a line should be drawn. This line is a reference point for future inspections of the system:
• Water level in the discharge chamber is a function of flow rate and pipe size. Observation of water level during the first few months of operation can be used as a benchmark level for future inspections. The initial mark and all future observations shall be made when system is at 100% capacity (water level at maximum level in pre-treatment chamber). If future water levels are below this mark when system is at 100% capacity this is an indicator that maintenance to the pre-filter cartridges may be needed. • Finalize inspection report for analysis by the maintenance manager to determine if maintenance is required.

Water Level
Mark
Water Level
Marks
Using a permanent marker draw a 6 inch long horizontal line, as shown, at the higher water level in the MWS Linear discharge chamber. www.modularwetlands.com
Maintenance Indicators
Based upon observations made during inspection, maintenance of the system may be required based on the following indicators:
 Missing or damaged internal components or cartridges.  Obstructions in the system or its inlet or outlet.
 Excessive accumulation of floatables in the pre-treatment chamber in which the length and width of the chamber is fully impacted more than 18”.

Excessive accumulation of sediment in the pre-treatment chamber of more than 6 inches in depth.
www.modularwetlands.com
 Excessive accumulation of sediment on the BioMediaGREEN media housed within the prefilter cartridges. The following chart shows photos of the condition of the BioMediaGREEN contained within the pre-filter cartridges. When media is more than 85% clogged replacement is required.
 Excessive accumulation of sediment on the BioMediaGREEN media housed within the drain down filter. The following photos show of the condition of the BioMediaGREEN contained within the drain down filter. When media is more than 85% clogged replacement is required. 0% -- Percent Clogged -- 100%
New
BioMediaGREEN
Exhausted
BioMediaGREEN
85%
www.modularwetlands.com
 Overgrown vegetation.
 Water level in discharge chamber during 100% operating capacity (pre-treatment chamber water level at max height) is lower than the watermark by 20%. www.modularwetlands.com
Inspection Notes

1. Following maintenance and/or inspection, it is recommended the maintenance operator prepare a maintenance/inspection record. The record should include any maintenance activities performed, amount and description of debris collected, and condition of the system and its various filter mechanisms.

2. The owner should keep maintenance/inspection record(s) for a minimum of five years from the date of maintenance. These records should be made available to the governing municipality for inspection upon request at any time.

3. Transport all debris, trash, organics and sediments to approved facility for disposal in accordance with local and state requirements.

4. Entry into chambers may require confined space training based on state and local regulations.

5. No fertilizer shall be used in the Biofiltration Chamber.

6. Irrigation should be provided as recommended by manufacturer and/or landscape architect. Amount of irrigation required is dependent on plant species. Some plants may not require irrigation after initial establishment.
www.modularwetlands.com
Maintenance Guidelines for
Modular Wetland System - Linear
Maintenance Summary
o Remove Sediment from Pre-Treatment Chamber – average maintenance interval is 12 to 24 months.
 (10 minute average service time).
o Replace Pre-Filter Cartridge Media – average maintenance interval 12 to 24 months.  (10-15 minute per cartridge average service time).
o Trim Vegetation – average maintenance interval is 6 to 12 months.  (Service time varies).

System Diagram
Access to separation chamber
and pre-filter cartridge
1 Pre-treatment Chamber
2 Biofiltration Chamber
3 Discharge Chamber
www.modularwetlands.com
Maintenance Overview
The time has come to maintain your Modular Wetland System Linear (MWS Linear). To ensure successful and efficient maintenance on the system we recommend the following. The MWS Linear can be maintained by removing the access hatches over the systems various chambers. All necessary pre-maintenance steps must be carried out before maintenance occurs, especially traffic control and other safety measures to protect the inspector and near-by pedestrians from any dangers associated with an open access hatch or manhole. Once traffic control has been set up per local and state regulations and access covers have been safely opened the maintenance process can begin. It should be noted that some maintenance activities require confined space entry. All confined space requirements must be strictly followed before entry into the system. In addition the following is recommended:
 Prepare the maintenance form by writing in the necessary information including project name, location, date & time, unit number and other info (see maintenance form).  Set up all appropriate safety and cleaning equipment.  Ensure traffic control is set up and properly positioned.  Prepare a pre-checks (OSHA, safety, confined space entry) are performed.

Maintenance Equipment
Following is a list of equipment required for maintenance of the MWS Linear:
 Modular Wetland Maintenance Form
 Manhole hook or appropriate tools to access hatches and covers  Protective clothing, flashlight and eye protection.
 7/16” open or closed ended wrench.
 Vacuum assisted truck with pressure washer.
 Replacement BioMediaGREEN for Pre-Filter Cartridges if required (order from manufacturer). www.modularwetlands.com
Maintenance Steps

1. Pre-treatment Chamber (bottom of chamber)
A. Remove access hatch or manhole cover over pre-treatment chamber and position vacuum truck accordingly.

B. With a pressure washer spray down pollutants accumulated on walls and pre-filter cartridges.

C. Vacuum out Pre-Treatment Chamber and remove all accumulated pollutants including trash, debris and sediments. Be sure to vacuum the floor until pervious pavers are visible and clean.

D. If Pre-Filter Cartridges require media replacement move onto step 2. If not, replace access hatch or manhole cover.

Removal of access hatch to gain access below. Insertion of vacuum hose into separation chamber.

Removal of trash, sediment and debris. Fully cleaned separation chamber. www.modularwetlands.com

2. Pre-Filter Cartridges (attached to wall of pre-treatment chamber) A. After finishing step 1 enter pre-treatment chamber.

B. Unscrew the two bolts holding the lid on each cartridge filter and remove lid.

C. Place the vacuum hose over each individual media filter to suck out filter media.

D. Once filter media has been sucked use a pressure washer to spray down inside of the cartridge and it’s containing media cages. Remove cleaned media cages and place to the side. Once removed the vacuum hose can be inserted into the cartridge to vacuum out any remaining material near the bottom of the cartridge.

Pre-filter cartridges with tops on.

Inside cartridges showing media filters ready for
replacement.

Vacuuming out of media filters.
www.modularwetlands.com
E. Reinstall media cages and fill with new media from manufacturer or outside supplier.

Manufacturer will provide specification of media and sources to purchase. Utilize the manufacture provided refilling trey and place on top of cartridge. Fill trey with new bulk media and shake down into place. Using your hands slightly compact media into each filter cage. Once cages are full removed refilling trey and replace cartridge top ensuring bolts are properly tightened.

F. Exit pre-treatment chamber. Replace access hatch or manhole cover.

3. Biofiltration Chamber (middle vegetated chamber)
A. In general, the biofiltration chamber is maintenance free with the exception of maintaining the vegetation. Using standard gardening tools properly trim back the vegetation to healthy levels. The MWS Linear utilizes vegetation similar to surrounding landscape areas therefore trim vegetation to match surrounding vegetation. If any plants have died replace plants with new ones:

Refilling trey for media replacement. Refilling trey on cartridge with bulk media.
www.modularwetlands.com

4. Discharge Chamber (contains drain down cartridge & connected to pipe) A. Remove access hatch or manhole cover over discharge chamber.

B. Enter chamber to gain access to the drain down filter. Unlock the locking mechanism and left up drain down filter housing to remove used BioMediaGREEN filter block as shown below:

C. Insert new BioMediaGREEN filter block and lock drain down filter housing back in place.

Replace access hatch or manhole cover over discharge chamber.

B. Over time, sediment will accumulate in the perimeter void area and will need to be vacuumed out. The media surface may also require power washing if it becomes occluded with sediment. In addition, the wetland media will eventually need to be replaced after 10 plus years of service. A vacuum truck is recommended to fully remove all wetland media. Once old media is removed the entire chamber, media cage, and netting should be power washed. The netting may require replacement before installing new media. New wetland media should be purchased directly from the manufacture. It can be delivered either in bulk or in super sacks for easy installation. www.modularwetlands.com
Inspection Notes

3. Transport all debris, trash, organics and sediments to approved facility for disposal in accordance with local and state requirements.

4. Entry into chambers may require confined space training based on state and local regulations.

5. No fertilizer shall be used in the Biofiltration Chamber.

P. 760.433-7640
F. 760-433-3176
E. [email protected]
www.modularwetlands.com
Maintenance Report
Modular Wetland System, Inc.

P. 760.433-7640
F. 760-433-3176
E. [email protected]
STORM
WATER
Removes Pollutants from Runoff
Prior to Entering Waterways
Two-part stainless-steel insert to filter solids and oils/grease.

Easy to install, inspect and maintain, even on small and confined sites.

Efficient System
Catches pollutants where they are easiest to catch, at the inlet.

Variable Design
Able to be retrofitted or used in new projects.

Treatment Train
Can be incorporated as part of a “Treatment Train”.

No Standing Water
Helps to minimize bacteria and odor problems.

Focused Treatment
Removes petroleum hydrocarbons, trash and
Total Suspended Solids (TSS).

Maximum Flexibility
Available in a variety of standard sizes to fit round and square inlets.

Economical
Earn a higher return on system investment.

By the Numbers*:

Filter will remove up to 80% of Total Suspended Solids
(TSS), at least 70% of oils and grease, and up to 40% of Total Phosphorus (TP) associated with organic debris
as well as Polycyclic Aromatic Hydrocarbons (PAH)
from oil leaks and spills.
*Approximate for urban street application.

CATCH BASIN FILTER TEST RESULTS SUMMARY
Testing Agency % TSS Removal % Oil & Grease Removal % PAH Removal UCLA 80 70 to 80
U of Auckland
Tonking & Taylor, Ltd
(for City of Auckland)
78 to 95
U of Hawaii
(for City of Honolulu)
80 20 to 40

INLET FILTRATION

PUT A STOP
to TSS

PUT A STOP
to TSS
Multi-Purpose Catch Basin Insert Retains Sediment, Debris, Trash and Oils/Grease
FloGard® catch basin insert filters are recommended for areas subject to silt and debris as well as low-to-moderate levels of petroleum hydrocarbons (oils and grease). Examples of such areas include vehicle parking lots, aircraft ramps, truck and bus storage yards, business parks, residential and public streets.

Flat-Grated Inlet
Captured debris from FloGard catch basin insert filter in Dana Point, California. Circular Frame Inlet Combination Inlet

CATCH BASIN FILTER COMPETITIVE FEATURE COMPARISON
Evaluation of Catch Basin Filters
(Based on flow-comparable units)
(Scale 1-10)
Oldcastle Other Insert
Filter Types**
Flow Rate 10 7
Removal Efficiency* 80% 45%
Capacity - Sludge & Oil 7 7
Service Life 10 3
Installation - Ease of Handling / Installation 8 6
Ease of Inspections & Maintenance 7 7
Value 10 2
*Approximate, based on field sediment removal testing in urban street application **Average Long-Term Value Comparison
(Based on flow-comparable units)
(Scale 1-10)
Oldcastle Other Insert
Filter Types**
Unit Value - Initial ($/cfs treated) 10 4
Installation Value ($/cfs treated) 10 7
Absorbent Replacement (annual avg ($/cfs treated) 10 2
Materials Replacement Value (annual avg ($/cfs treated) 10 10 Maintenance Value (annual avg ($/cfs treated) 10 7
Total First Year ROI ($/cfs treated) 10 5
Total Annual Avg Value ($/cfs treated, avg over 20 yrs)* 10 5 (800) 579-8819
oldcastleinfrastructure.com
Inspection and Maintenance Guide

DRAINAGE PROTECTION SYSTEMS
A division of
Oldcastle Infrastructure
FLOGARD+PLUS®

CATCH BASIN INSERT FILTER
SCOPE:

Federal, State and Local Clean Water Act regulations and those of insurance carriers require that stormwater filtration systems be maintained and serviced on a recurring basis. The intent of the regulations is to ensure that the systems, on a continuing basis, efficiently remove pollutants from stormwater runoff thereby preventing pollution of the nation’s water resources. These specifications apply to the FloGard+Plus® Catch Basin Insert Filter.

RECOMMENDED FREQUENCY OF SERVICE:

Drainage Protection Systems (DPS) recommends that installed FloGard+Plus Catch Basin Insert Filters be serviced on a recurring basis. Ultimately, the frequency depends on the amount of runoff, pollutant loading and interference from debris (leaves, vegetation, cans, paper, etc.); however, it is recommended that each installation be serviced a minimum of three times per year, with a change of filter medium once per year. DPS technicians are available to do an on-site evaluation, upon request.

RECOMMENDED TIMING OF SERVICE:

DPS guidelines for the timing of service are as follows:

1. For areas with a definite rainy season: Prior to, during and following the rainy season.

2. For areas subject to year-round rainfall: On a recurring basis (at least three times per year).

3. For areas with winter snow and summer rain: Prior to and just after the snow season and during the summer rain season.

4. For installed devices not subject to the elements (wash racks, parking garages, etc.): On a recurring basis (no less than three times per year).

SERVICE PROCEDURES:

1. The catch basin grate shall be removed and set to one side. The catch basin shall be visually inspected for defects and possible illegal dumping. If illegal dumping has occurred, the proper authorities and property owner representative shall be notified as soon as practicable.

2. Using an industrial vacuum, the collected materials shall be removed from the liner. (Note: DPS uses a truck-mounted vacuum for servicing FloGard+Plus catch basin inserts).

3. When all of the collected materials have been removed, the filter medium pouches shall be removed by unsnapping the tether from the D-ring and set to one side. The filter liner, gaskets, stainless steel frame and mounting brackets, etc., shall be inspected for continued serviceability. Minor damage or defects found shall be corrected on-the-spot and a notation made on the Maintenance Record.

More extensive deficiencies that affect the efficiency of the filter (torn liner, etc.), if approved by the customer representative, will be corrected and an invoice submitted to the representative along with the Maintenance Record.

4. The filter medium pouches shall be inspected for defects and continued serviceability and replaced as necessary, and the pouch tethers re-attached to the liner’s D-ring.

5. The grate shall be replaced.

REPLACEMENT AND DISPOSAL OF EXPOSED FILTER MEDIUM AND COLLECTED DEBRIS The frequency of filter medium exchange will be in accordance with the existing DPS-Customer Maintenance Contract. DPS recommends that the medium be changed at least once per year. During the appropriate service, or if so determined by the service technician during a non-scheduled service, the filter medium will be replaced with new material. Once the exposed pouches and debris have been removed, DPS has possession and must dispose of it in accordance with local, state and federal agency requirements.

DPS also has the capability of servicing all manner of storm drain filters, catch basin inserts and catch basins without inserts, underground oil/water separators, stormwater interceptors and other such devices.

All DPS personnel are highly qualified technicians and are confined-space trained and certified. Call us at (888) 950-8826 for further information and assistance.
2 FLOGARD+PLUS®

CATCH BASIN INSERT FILTER

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February 2019 v.1
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STORMCAPTURE®
Inspection and Maintenance Guide
Description
The StormCapture® system is an underground, modular, structural precast concrete storage system for stormwater detention, retention, infiltration, harvesting and reuse, and water quality volume storage. The system’s modular design utilizes multiple standard precast concrete units with inside dimensions of 7 feet by 15 feet (outside dimensions of 8 feet by 16 feet) to form an underground storage system. The inside height of the StormCapture system can range from 2 feet to 14 feet. This modular design provides limitless configuration options for sitespecific layouts.

StormCapture components can be provided as either open-bottom modules to promote infiltration or closedbottom modules for detention. In some cases, StormCapture modules can be placed in a checkerboard configuration for an even more efficient design. A Link Slab, with a footprint of 9 feet by 17 feet, is then used to bridge each space without a module.

The standard StormCapture design incorporates lateral and longitudinal passageways between modules to accommodate internal stormwater conveyance throughout the system. These passageways may be classified as either a “window configuration” with standard 12-inch tall sediment baffles extending up from the floor of the module to the bottom of the window, or a “doorway configuration” without the sediment baffles. The function and drainage rate of a StormCapture system depends on site-specific conditions and requirements.

Stormwater typically enters the StormCapture system through an inlet pipe. Grated inlets can also be used for direct discharge into the system. The StormCapture system is rated for H-20 traffic loading with limited cover.

Higher load requirements can also be accommodated. In addition, StormCapture systems are typically equipped with a limited number of maintenance modules that provide access to the system for ongoing inspection and maintenance.

Function
The StormCapture system is primarily used to manage water quantity by temporarily storing stormwater runoff from impervious surfaces to prevent flooding, slow down the rate at which stormwater leaves the site, and reduce receiving stream erosion. In addition, the StormCapture system can be used to capture stormwater runoff for water quality treatment. Regardless of how the StormCapture system is used, some sedimentation may occur in the modules during the time water is stored.

Configurations
The configuration of the StormCapture systems may vary, depending on the water quality and/or quantity requirements of the site. StormCapture configurations for detention, retention/infiltration, and retention/ harvesting are described below.

Detention
StormCapture Detention systems are designed with a closed bottom to detain stormwater runoff for controlled discharge from the site. This design may incorporate a dead storage sump and a permanent pool of water if the outlet pipe is higher than the floor elevation. Discharge from the system is typically controlled by an outlet orifice and/or outlet weir to regulate the rate of stormwater leaving the system. StormCapture Detention systems are typically designed with silt-tight joints, however when conditions exist that require a StormCapture system to be watertight, the system may be wrapped in a continuous, impermeable geomembrane liner. If the StormCapture Detention system includes Link Slabs, a liner must be used to detain water since the chambers under each Link Slab have no floor slab. In this case, care must be taken by maintenance personnel not to damage the exposed liner beneath each Link Slab.
2 3
Retention/Infiltration
StormCapture Retention/Infiltration systems are designed with an open bottom to allow for the retention of stormwater onsite through infiltration into the base rock and surrounding soils. For infiltration systems, the configuration of the base of the StormCapture system may vary, depending on the needs of the site and the height of the system. Some systems may use modules that have fully open bottoms with no concrete floor, while other systems may use modules that incorporate floor openings in the base of each module. These are typically 24-inch by 24-inch openings. For open-bottom systems, concrete splash pads may be installed below inlet grate openings and pipe inlets to prevent erosion of base rock. A StormCapture Infiltration system may have an elevated discharge pipe for peak overflow.

Retention/Harvesting
StormCapture Retention/Harvesting systems are similar to detention systems using closed-bottom modules, but stormwater is typically retained onsite for an extended period of time and later reused for non-potable applications or irrigation. For rainwater harvesting systems, an impermeable geomembrane liner is typically installed around the modules to provide a water-tight system.

Inspection and Maintenance Overview
State and local regulations typically require all stormwater management systems to be inspected on a regular basis and maintained as necessary to ensure performance and protect downstream receiving waters. Inspections should be used to evaluate the conditions of the system. Based on these inspections, maintenance needs can be determined. Maintenance needs vary by site and system. Using this Inspection & Maintenance Guide, qualified maintenance personnel should be able to provide a recommendation for maintenance needs. Requirements may range from minor activities such as removing trash, debris or pipe blockages to more substantial activities such as vacuuming and removal of sediment and/or non-draining water. Long-term maintenance is important to the operation of the system since it prevents excessive pollutant buildup that may limit system performance by reducing the operating capacity and increasing the potential for scouring of pollutants during periods of high flow.

Only authorized personnel shall inspect and/or enter a StormCapture system. Personnel must be properly trained and equipped before entering any underground or confined space structure. Training includes familiarity with and adherence to any and all local, state and federal regulations governing confined space access and the operation, inspection, and maintenance of underground structures.

Inspection and Maintenance Frequency
The StormCapture system should be inspected on a regular basis, typically twice per year, and maintained as required. The maintenance frequency will be driven by the amount of runoff and pollutant loading encountered by a given system. Local jurisdictions may also dictate inspection and maintenance frequencies. 4 Inspection Equipment
The following equipment is helpful when conducting StormCapture inspections:
• Recording device (pen and paper form, voice recorder, iPad, etc.) • Suitable clothing (appropriate footwear, gloves, hardhat, safety glasses, etc.) • Traffic control equipment (cones, barricades, signage, flagging, etc.) • Manhole hook or pry bar
• Confined space entry equipment, if needed
• Flashlight
• Tape measure
• Measuring stick or sludge sampler
• Long-handled net (optional)
Inspection Procedures
A typical StormCapture system provides strategically placed access points that may be used for inspection.

StormCapture inspections are usually conducted visually from the ground surface, without entering the unit. This typically limits inspection to the assessment of sediment depth, water drain down, and general condition of the modules and components, but a more detailed assessment of structural condition may be conducted during a maintenance event.

To complete an inspection, safety measures including traffic control should be deployed before the access covers are removed. Once the covers have been removed, the following items should be inspected and recorded (see form provided at the end of this document) to determine whether maintenance is required:
• Observe inlet and outlet pipe penetrations for blockage or obstruction. • If possible, observe internal components like baffles, flow control weirs or orifices, and steps or ladders to determine whether they are broken, missing, or possibly obstructed. • Observe, quantify, and record the sediment depths within the modules. • Retrieve as much floating trash as possible with a long-handled net. If a significant amount of trash remains, make a note in the Inspection & Maintenance Log.
• For infiltration systems, local regulations may require monitoring of the system to ensure drain down is occurring within the required permit time period (typically 24 to 72 hours). If this is the case, refer to local regulations for proper inspection procedure.

Maintenance Indicators
Maintenance should be scheduled if any of the following conditions are identified during the inspection:
• Inlet or outlet piping is blocked or obstructed.
• Internal components are broken, missing, or obstructed. • Accumulation of more than six inches of sediment on the system floor or in the sump, if applicable. • Significant accumulation of floating trash and debris that cannot be retrieved with a net. • The system has not drained completely after it hasn’t rained for one to three days, or the drain down does not meet permit requirements.
• Any hazardous material is observed or reported.
5 Maintenance Equipment
The following equipment is helpful when conducting StormCapture maintenance:
• Suitable clothing (appropriate footwear, gloves, hardhat, safety glasses, etc.) • Traffic control equipment (cones, barricades, signage, flagging, etc.) • Manhole hook or pry bar
• Confined space entry equipment, if needed
• Flashlight
• Tape measure
• Vacuum truck
Maintenance Procedures
Maintenance should be conducted during dry weather when no flow is entering the system. Confined space entry is usually required to maintain the StormCapture. Only personnel that are OSHA Confined Space Entry trained and certified may enter underground structures. Once safety measures such as traffic control have been deployed, the access covers may be removed and the following activities may be conducted to complete maintenance:
• Remove trash and debris using an extension on the end of the boom hose of the vacuum truck. Continue using the vacuum truck to completely remove accumulated sediment. Some jetting may be necessary to fully evacuate sediment from the system floor or sump. Jetting is acceptable in systems with solid concrete floors or base slabs (referred to as closed-bottom systems). However, jetting is not recommended for open-bottom systems with a gravel foundation since it may cause bedding displacement, undermining of the foundation, or internal disturbance.
• All material removed from the system during maintenance must be disposed of in accordance with local regulations. In most cases, the material may be handled in the same manner as disposal of material removed from sumped catch basins or manholes.
• Inspect inlet and outlet pipe penetrations for cracking and other signs of movement that may cause leakage. • Inspect the concrete splash pads (applicable for open-bottom systems only) for proper function and placement.
• Inspect the system for movement of modules. There should be less than 3/4-inch spacing between modules.
• Inspect the general interior condition of modules for concrete cracking or deterioration. If the system consists of horizontal joints as part of the modules, inspect those joints for leakage, displacement or deterioration.

Be sure to securely replace all access covers, as appropriate, following inspection and/or maintenance. If the StormCapture modules or any of the system components show significant signs of cracking, spalling, or deterioration or if there is evidence of excessive differential settlement between modules, contact Oldcastle Infrastructure at 800-579-8819.

StormCapture
Inspection & Maintenance Log
Refer to as-built records for details about system size and location onsite Location
Inspection Date
Condition of Internal Components Notes:

Good Damaged Missing
Detention Infiltration Retention/Harvesting
Inlet or Outlet Blockage or Obstruction
System Configuration:

Notes:

Yes No
Trash and Debris Accumulation
Sediment Depth Observed
Notes:

Significant Not Significant
Drain Down Observations Notes:

Appropriate Time Frame Inappropriate Time Frame
Maintenance Requirements
Yes - Schedule Maintenance No - Inspect Again in _______ Months Notes:

Inches of Sediment: ___________

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February 2019 v.1
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STORMCAPTURE®
What is a watershed and how do I affect it?
A watershed is an area of land that catches and drains water into a creek, stream or tributary and eventually ends up in a large body of water such as our lakes, rivers or the ocean. As stormwater flows over land and across the watershed into a waterway, it carries urban runoff such as used motor oil and grease, pesticides, trash and other harmful debris. This is where the public comes in. The more we can prevent polluting the watershed, the healthier our waterways will be and the habitat it supports.

What is stormwater?
Stormwater runoff is any water, either through rain, sprinklers, or irrigation of yards/gardens, that falls and is transported over land and pavement into local waterbodies through the storm drain system. All water that flows into a storm drain is deposited into creeks, rivers or the ocean without treatment.

Is there a difference
between the storm drain
and sewer system?
Yes, an important difference.

Stormwater and all the pollutants
that flow from our homes, parking
lots and streets to the gutter into
the storm drains flow directly into
our creeks and other water bodies
untreated. Water and pollutants
that flow into the sanitary sewer,
such as water from our sinks,
bathtubs and toilets, are sent to a
wastewater treatment facility
before the water is discharged to
the Bay or Ocean.
27 Cities + One County + Two Districts = A Team Effort.

Water pollution degrades surface waters which can cause them to be unsafe for drinking, fishing, swimming, and other activities. The Riverside County Watershed Protection program was established to reduce the pollution carried by stormwater into local creeks and waterways that lead to the ocean. The program is managed by the Riverside County Flood Control & Water Conservation District in partnership with 27 Cities, the County of Riverside and the Coachella Valley Water District. rcwatershed.org
Pick up dog doo. Protect streams
Dog doo can pollute our waterways. Rain flows across
yards and trails, collecting in storm drains that lead
directly to streams without being treated!
Bacteria Problems
A single gram of dog doo can contain
23 million fecal coliform bacteria and
can spread diseases like Giardia and Salmonella.

Bacteria from dog doo accounts for up to of the bacteria in urban waterways.

Nutrient Problems
Nutrients like nitrogen and phosphorus that are found in dog doo act like a fertilizer in streams. They cause algae to grow which reduces the available oxygen for fish. The more poop, the bigger the potential problem. Locally there are over dogs that make of poop a year.

Be a “Doo Gooder”
You can make a difference by being a responsible pet owner. Being a “Doo Gooder” means being a model for others and picking up your dog doo. Here are every dog owner should know:
 Be prepared: carry poop bags with you.
 Take extra bags so you don’t run out and you can help someone else in need.  Make sure the bag ends up in a trash can.
 When you hike, never leave a bag on the trail – take it with you.  Scoop your poop at home or hire someone to keep your yard healthy and to protect streams.

OUR MISSION
“To protect, preserve and enhance the quality of Riverside County Watersheds by fostering a community-wide commitment to clean water.”
@RivCoWatershed
rcwatershed.org

IRRIGATION RUNOFF

S T O R MWA T E R F ACT S H E E T

OVERWATERING
Overwatering causes irrigation runoff that may contain pollutants such as pesticides, herbicides, fertilizers, pet waste, yard waste, and sediments which can be hazardous to residents and harmful to our environment. Runoff can also serve as a transport mechanism for other pollutants already on the ground or in the curb gutter. Irrigation runoff entering the storm drain system is an illicit discharge.

BEST PRACTICES

PROTECT OUR WATERSHED
Urban runoff begins when yards and landscaped areas are over-irrigated. Irrigation systems require regular maintenance and visual inspection of the system should be performed to prevent over-spray, leaks, and other problems that result in runoff to storm drains, curbs and gutters.

You can prevent pollution by conserving water on your
property. Water during cooler times of the day (before 10am and after 6pm).
- Adjust sprinklers to stop overspray and runoff.
- Make needed repairs immediately.
- Use drip irrigation, soaker hoses, or micro-spray systems. - Use an irrigation timer to pre-set watering times.
- Use a control nozzle or similar mechanism when watering by hand.
- Switch to a water-wise landscape - native plants need less fertilizers, herbicides, pesticides and water.

Many people think that when water flows into a storm drain it is treated, but the storm drain system and the sanitary sewer system are not connected. Everything that enters storm drains flows untreated directly into our creeks, rivers, lakes, beaches and ultimately the ocean. Storm water often contains
pollutants, including chemicals, trash, and automobile fluids, all of which pollute our watershed and harm fish and wildlife.

Whether at home or work, you can help reduce pollution and improve water quality by using the above Best Management Practices (BMP’s) as part of your daily clean up and
maintenance routine.

Report Irrigation Runoff or Stormwater Pollution:
800.506.2555
Preliminary Water Quality Management Plan (WQMP)
LMC Murrieta Apartments
- 51 -
Appendix 10: Educational
Materials
BMP Fact Sheets, Maintenance Guidelines and Other End-User BMP Information Examples of material to provide in Appendix 10 may include but are not limited to the following:
• BMP Fact Sheets for proposed BMPs form Exhibit C: LID BMP Design Handbook of the

SMR WQMP,
• Source control information and training material for site owners and operators, • O&M training material,
• Other educational/training material related to site drainage and BMPs.

Murrieta City CouncilMay 20, 2025

Murrieta City Council
May 20, 2025