San Antonio Water District Headquarters/400 E.2011'Street,Upland,CA. 24036-F/AMP
6.0 WQMP-BMP Infiltration Rates Using Porchet
Method for Stormwater Disposal Design
In general, four(4) infiltration tests were planned at the depth and locations as suggested by the project design engineer. Considering the excessively gravely sands and concentrations of rocks, cobbles, and occasional small boulders, infiltration testing was limited to the depths of 3 and 5 feet below existing surface grade(BSG)at the southwest where 8-foot testing was planned. Planned testing (P-3 and P-4)at depths 3 to 4 feet within the area of the planned basin/swale could not be performed due to resistance at 1 and 1.5 feet due to concentrations of rocks, cobbles, and small boulders. The tests were performed using the standardized"falling-head"test converted using the Porchet method.Test locations and test data are shown in the attached Appendix D.
Method of infiltration rate as per the guidelines in accordance with Table 1, Infiltration Basin Option 2 of Appendix A of the Riverside County-Low Impact Development(LID) BMP Design Handbook as well as per the Appendices Section VII.3.8.2, Appendix VII: Infiltration Rate Evaluation Protocol and Factor of Safety Recommendations of the San Bernardino County Technical Guidance Document for Water Quality Management Plans Handbook.
Approximate test locations are shown on the attached Plate 1. The test results should be considered tentative given the potential for changes to site finish grades or changes in soil conditions as exposed during site preparations and grading.
The soils encountered within the proposed chamber consist, in general, of dry gravels and fine to medium coarse poorly graded silty sands overlying variegating layers of gravels and silty fine to medium coarse sands with rocks and cobbles to the depth explored of 3 and 5 feet as described (test borings P-1 to P-2).
Descriptions of the soils encountered are provided in the attached Log of Borings.
Based on the field infiltration testing completed, it is our opinion that for the infiltration system design proposed at about 3 and 5 feet below grade, the observed soils infiltration rates are 19.79 inches/hour and
15.62 inches/hour for test locations P-1 and P-2, respectively.
For design, it is suggested that use of an appropriate factor of safety as determined by the design engineer should be considered to the observed rate to account for long-term saturation, inconsistencies in subsoil conditions, potential for silting, and lack of maintenance. The observed soils' percolation rates are provided in Section 6.3 of this report.
6.1 METHODOLOGY AND TEST PROCEDURES
EQUIPMENT SET-UP (POST EXCAVATION) PROCEDURES:
Following test boring completion, each of the test holes were fitted with perforated PVC pipes backfilled with 2-inch-thick crushed rock at the bottom to minimize potentials for scouring and caving. For testing, each test hole was initially filled using water supplied by water jugs.
Prior to actual testing, to determine test intervals, as per the Section 2.3 for deep percolation testing of the referenced handbook guideline, two consecutive readings were performed to determine if 6 or more inches of water seeped in 25 minutes. Since 6 inches or more of water seeped away in less than 25 minutes for all test locations, P-1 and P-2 , subsequent percolation testing was performed at 10-minute time intervals for at least minimum one hour or until the rates were uniform. Testing included water placement at about and 3 feet below existing grade surface (inlet depth of 24 inches above infiltration system bottom).
August 28,2024 1
San Antonio Water District Headquarters/400 E.20i"Street,Upland,CA. 24036-F/BMP The final 10-minute recorded percolation test rates were converted into an Infiltration Rate (It) for inches per hour using the "Porchet Method'' equation as described in the Reference 2, Riverside County Low impact Development BMP Design Handbook, as well as per the Appendices Section VI1.3.8.2, Appendix VI€: Infiltration Rate Evaluation Protocol and Factor of Safety Recommendations on the San Bernardino County Technical Guidance Document for Water Quality Management Plans Handbook.
6.2 INFILTRATION TEST RESULTS
Based on the soils infiltration testing completed at the test locations and at the test depth as described, the observed soils' percolation rates are 19.79 inches/hour and 15.62 inches/hour for test locations P-1 and P- 2, respectively.
Calculations to convert the percolation test rate to infiltration test rates in accordance with Section 2.3 of the County Handbook are presented in Table I and II below. For design, it is suggested that an appropriate Factor of Safety as selected by the design engineer should be considered to the observed field percolation rate described.
6.2.1 SUMMARY & CONVERSION CALCULATIONS
TABLE I
For WQMP-BMP design, based on the soils infiltration testing completed and, on the calculations as described, the following infiltration rates may be considered. Actual field test data are attached.
Observed Infiltration Rate for Design
Test Location Test Depth Porchet
(8-9-24) Below Grade, Method
feet Observed Rate,
inch/hour
P-1 3 19.79
P-2 5 15.62
P-3 n/a n/a
P-4 n/a n/a
Note- n/a due to shallow boring resistance to near surface concentrations of rocks,cobbles, and small boulders,infiltration tests could not be performed at the required depths.
TABLE II
Conversion Table(Porchet Method)
Test Depth Time Initial Final Initial Final Change in Average No. Test Interval, Depth, Depth, Water Water Height/ Head Hole, minutes inches inches Height, Height, Time Height/Time inches inches inches
Dt AT _ Do Dr Ho=Dt-Do Hf=Dt-Df ©H= Hf-Ho Hag = (Ho+Hf)/2
_ I
P-1 36 10 12 35.5 24.0 0.5 23.50 12.25 P-2 60 10 36 56.5 24.0 3.5 20.50 13.75 Infiltration Rate I,Itj=AH64riAt(r+2Havg) _
A B C
Test No. . ❑H60r ❑t(r+2Havg) A/B=in/hr
P-1 5640 285 19.79
P-2 4920 315 15.62
•.sw nuciu r =Y,mum•t '.
San Antonio Water District Headquarters/400 E.20th Street,Upland,CA. 24036-FfBMP Use of a safety factor should be considered to account for long-term saturation, inconsistencies in subsoil conditions along with the potential for silting of percolating soils.
The infiltration rate described is based on the in-situ testing completed at the locations as suggested by the project civil engineer. In the event that the final chamber location and depth vary considerably from those described herein, supplemental soils infiltration testing may be warranted.
It should be noted that over prolonged use and lack of maintenance the detention/infiltration basins or deep chambers constructed based on the suggested design rate may experience much lower infiltration rate due to the accumulation of silts, fines, soils, and others. Regular maintenance of the chambers in the form of removal of debris, oil, and fines are strongly recommended. A maintenance record of such is suggested for future use.
Suggested Requirements for Standard Stormwater BMP installation (where applicable) The invert of stormwater infiltration should be set at least 10 feet above the groundwater elevation and should not be placed on steep slopes to create conditions for slopes instability.
When adequately installed, it is our opinion that the Stormwater infiltration systems installed should not increase the potential for static or seismic settlement of structures.
Stormwater infiltration installed should not place an increased surcharge on structures or foundations on or its adjacent.The pore water pressure should not increase the soils retained by retaining structures.
The invert of stormwater infiltration should be set back at least 15 feet and outside a 1:1 plan drawn up from the bottom of adjacent foundations.
Stormwater infiltration should not be located near utility lines where the introduction of stormwater could cause damage to utilities or settlement of trench backfill.
Stormwater infiltration systems should not be allowed within 100 feet of any potable groundwater production well.
Once installed, regular maintenance of the detention systems is recommended.
SSW Angue;r 22,2024
San Antonio Water District Headquarters/400 E.20'"Street, Upland.CA. 24036-F/B1MP
7.0 Closure
The conclusions and recommendations presented are based upon the findings and observations as made during subsurface test excavations and subsequent laboratory testing and engineering evaluations as currently used in the Geotechnical industry. The recommendations supplied should be considered "preliminary"since they are based on soil samples only. If during construction,the subsoil conditions appear different from those as disclosed during field investigation this office should be notified to consider any possible need for modification by the geotechnical recommendations as provided in this report.
Recommendations provided are based on the assumptions that structural footings will be established exclusively into compacted fill. No footings and/or slabs should be allowed straddling over cut and fill transition interface.
Site grading observations and testing must be performed by a representative of this office. Further, it is recommended that excavated footings should be verified and approved by geotechnical engineer prior to steel and concrete placement to ensure that foundations are founded into satisfactory soils and excavations are free of loose and disturbed materials.
A pre-grading meeting between grading contractor and geotechnical engineer is recommended prior to construction preferably at the site, to discuss the grading procedures to be implemented and other requirements described in this report to be fulfilled.
This report has been prepared exclusively for the use of the addressee for the project referenced in the context. It shall not be transferred or be used by other parties without written consent by Soils Southwest, Inc.
Should the project be delayed beyond one year after the date of this report,the recommendations presented shall be reviewed to consider any possible change in site conditions.
The recommendations presented are on the assumption that the necessary geotechnical observations and testing during construction will be performed by a representative of this office. The field observations are considered a continuation of the geotechnical investigation performed.
If another firm is retained for geotechnical observations and testing, our professional liability and responsibility shall be limited to the extent that Soils Southwest, Inc.would not be the geotechnical engineer of record. Use of the geotechnical recommendations by others will relieve Soils Southwest, Inc. of any liability that may arise during the lifetime use of the structure constructed.
San Antonio Water District Headquarters/400 E.20''Street,Upland,CA. 24036-F/BMP
PLOT PLAN AND TEST LOCATIONS
400 E. 201h Street, Upland
APN: 1044-091-22
Not to Scale
`\ 10 r.;..A_
` E 2OTH STREET _ _ ' -. — -- r �- l' E STREET ,_., �: -„. . .� "� Y-h �era4r710«unw � f
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j } r;:.. - r-6 :;;:4X' .-I /`/}+
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V ''ram .{1i.7•. : F3-1.
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400 E.20TH SYRLE�_ �y & 1. " ••': •.
x • • P-1 -� ®t --.
__ :_ i—lt.,
210 FREEWAY
Legend: • B-1 Approximate Location of Test Borings for Geotechnical Evaluations ® P-1 Approximate Location of Test Pit for BMP Soils' Infiltration • P-3 Approximate location of Test Pit for BMP Soils Infiltration that could not be performed as planned due to surface concentrations of rocks, cobbles, and small boulders.
San Antonio Water District Headquarters/400 E.20'4 Street,tlpland,CA. 24036-F/BMP List of Appendices
Appendix A -Log of Borings
Appendix B -Laboratory Test Results
Table I: In-Situ Moisture-Density (ASTM D2216 and D2937) Table II: Max. Density/Optimum Moisture Content(ASTM D1557) Table III: Direct Shear(ASTM D3080)
Table IV: Consolidation (ASTM D2435)
Table V: Sand Equivalent, SE (ASTM D2419)
Table VI: Sieve Analysis (ASTM D422)
Table VII: Soils' Chemical Analyses Test Results
Table VIII: Soils' Density Correlation to SPT Blow Counts APPENDIX C—Supplemental Seismic Design Parameters&
FEMA National Flood Hazard Layer Map
APPENDIX❑ -Field Infiltration Test Data Porchet Method Calculation Summary SSW August 28,2n24 •,.
San Antonio Water District Headquarters/400 E.2011'Street,Upland,CA. 24036-F/BMP
LOG OF BORINGS
'SW AuousL
Soils Southwest,tton Inc.
Co via Lata,
CA9 suite 2324 LOG OF BORING B-1
Col ,
(909) 370-0474 Fax(909) 370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8" HSA Date: August 9,2024 C C
m o 0
12 o cJ c
N q,y, C R n w L] = Description and Remarks E m a 4 " E R in Q
ina°?N n aU .��QO C7 0 ui
G? • • \disturbed surface soils, gravels, scattered • •0 • \debris
•
GM-SM ' y � 1GRAVELS consisting of rocks and cobbles ■_ �.;. 1 {Max Dry Density = 133 pof @ 8.0 %
GRAVEL/SAND mixture-tannish light brown,
5 silty, fine to medium coarse, pebbles, rock
fragments, rocks, cobbles, dry
- Abandoned at +/- 3.0 ft. due to resistance
(concentrations of rocks and cobbles)
- no bedrock
- no groundwater
1 0
15 20
2.0 30
Groundwater: n/a Site Location Plate#
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a
Upland, California Page 944 of 1374
11 Bulk/Grab sample
-TOSoils Southwest, Inc.
897Via Suite N CA LOG OF BORING B-2
Colton, CA 92324
(909) 370-0474 Fax(909) 370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8" HSA Date: August 9,2024 ALL N T O
pO.U - 0
v c R ;= E Description and Remarks
m Ca p U w a v m v a ccoE
.c
ul d ..- O._ Cl- n co 0. AIL
GP $ 4 i ARravels
LA GRAVEL- rocks cobbles, small boulders, with
I very little yellow tan silty dry sand
- Abandoned test boring @ 1.5 feet due to
resistance (concentrations of rocks and
5 cobbles
- no bedrock
- no groundwater
10 15
20 25
30 Groundwater: n/a Site Location Plate #
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a Uoland. California ^age 045 of 1374
Soils Southwest, Inc.
Colton,897 Via CA324 a9 N LOG OF BORING B-3 (909) 370-0474 Fax(909)370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8 HSA Date: August 9,2024 =ua c
o 0
nas0 c . . c
il, Description and Remarks
s LL m a N y a -
a c ❑o aw zmmo mma 2'a m E >. - ciCIma0?N ❑5 aU ❑t. n a nu_ GM--SN \gravels, scattered weeds and debris
gp
GRAVEL/SAND mixture-with gravely and
slightly silty, fine to medium coarse, rock
fragments, rocks, and cobbles, dry
- Abandoned Test boring @ 2.0 ft. due to
5 resistance (concentrations of rocks and
cobbles)
- no bedrock
- no groundwater
10 15
20 25
30 i
Groundwater: n/a Site Location Plate #
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a Upland. California
Soils Southwest, Inc.
cvitora CALata9 3�4 Suite N LOG OF BORING B-4 (909) 370-0474 Fax(909)370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8" HSA Date: August 9,2024 ❑ y 7 C O b U u v w E • Description and Remarks D ❑ ` ❑t� osa Hm
v E 1,2 4 " = row v aW
m ua, o a, m .
vial _ ❑ .__ � v 5 v) (.9 ❑u GM-Sm 7flx111 \disturbed surface gravels and sails
GRAVEL/SAND mixture-light tan silty, fine to
medium coarse, rock fragments, rocks,cobbles
occasional small boulders, dry
- Abandoned test boring @ 0.5 ft. due to
5� resistance (concentrations of rocks,
cobbles, small boulders)
- no bedrock
- no groundwater
10 15
20 25
30 Groundwater: n/a Site Location Plate#
Approx. Depth of Bedrock: n/a T T
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a Up]pnd. California Page 947 of 1374
Soils Southwest, Inc.
cSuite
oft on CAa92324 N LOG OF BORING B-5
ih& (909) 370-0474 Fax (909) 370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8" HSA Date: August 9,2024 :: d C C
C Li- ' .. T C ❑
❑ y a c 0 m
Q 0]LL Q 0:'= E - L Description and Remarks �3 `m 0 c� n a
Nd�(!) C O E D C n•orn L9 au_ cm-5MV , disturbed surface gravels and soils with i . •. rocks and cobbles
i
GRAVEL/SAND mixture-tan to light brown,
slightly silty, fine to medium coarse,
rock fragments, rocks, and cobbles, dry
5 - Abandoned test boring @ t/- 1.5 feet due
to resistance(concentrations of rocks and
cobbles)
- no bedrock
- no groundwater
10_
15 20
25 30
Groundwater: n/a Site Location Plate #
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
N Elevation: n/a U-e��ind. California
f'agc 948 of 1374
Soils Southwest, Inc.
lilS7 897 Colton, CAa9 324 N LOG OF BORING B-6 (909) 370-0474 Fax(909) 370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. J Boring Diam.: 8" HSA Date: August 9,2024 c i
o
r Q a H 0 n U ti
V
n .y L Description and Remarks
❑ U
w N
a °?ui = ❑ .E iuu SUN [9 0th
gravels, rocks, cobbles
GRAVEL/SAND mixture-light tan to brown,
slightly silty, fine to medium coarse,rocks
cobbles, dry
- Abandoned test boring @ 2.0 ft. due to
resistance (concentrations of rocks and
cobbles)
- no bedrock
- no groundwater
10 •15
20 25_
30 Groundwater: n/a Site Location Plate #
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a 1.1n1�14,, California Page 949 of 1374
Soils Southwest, Inc.
897Col Via Lata, Suite N LOG OF BORING P-1
Colton, CA 92324
(909) 370-0474 Fax(909) 370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8 ESA Date: August 9,2024 0 C O Cu C
� LL a:= r t r Description and Remarks n c q d Q m N
fo dE :� � � mm
GM-SM R •• A- disturbed surface gravels and soils
GRAVELS/SAND mixture -light yellow tan,silty
SM fine, dry with rocks and cobbles
SAND - gray-brown, silty, fine to medium
GP coarse, pebbles, rock fragments,
rocks, cobbles, dry
GRAVELS with little to no sand,rocks,cobbles
- Abandoned infiltration test boring @3.0 ft
due to resistance (concentrations of rock
and cobbles) - no bedrock
- no groundwater
10 15
20 25
30 Groundwater: n/a Site Location Plate #
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a Upland. California
956 of 1374
Soils Southwest, Inc.
sColton97 Via Lata,
CA92 S3uite24 N LOG OF BORING P-2
(909) 370-0474 Fax(909)370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. l Boring Diam.: 8'I HSA Date: August 9,2024 c LL 9 m A C ❑
} 0 To
8 Ti �, 0 'Erro a:� E " .E Description and Remarks t
'❑ � $ q y C] U s
m 0. m y y a
= c a E a E E = N am
«° m 'O � m o c ,
u
SM Adisturbed gravels and soils
SAND - yellowish tannish brown, silty, fine
- to medium coarse, pebbles, rock
- __ - fragments, rocks, dry
- with rocks and cobbles
GP • ; 5 GRAVELS - - -- Abandoned infiltration test boring @5.0ft. due to resistance (concentrations of rocks
and cobbles)
- no bedrock
- no groundwater
10 15
20 25
30 Groundwater: n/a Site Location Plate#
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a Deland dal i fg
Pagc 951 of 1374
Soils Southwest, Inc.
. 897 Via SN , Suite IAS Cotton, CAa9 324 N LOG OF BORING P-3 (909) 370-0474 Fax (909) 370-3156
Project: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8" HSA Date: August 9,2024 C k 4 P. a O
O Ei D. 0 P
Description and Remarks
"O fl N p U 61 a .1., y Q .r O E N c 7', d.o D O YC tn . "- EL''U]d N i p m E UCl1 U' ❑LL Qy--5 ` ••{ gravels, rocks, and cobbles
t GRAVEL/SAND mixture- light yellow gray tan,
silty, fine, rock fragments, rocks, cobbles
scattered small boulders, dry
SAND (fill) - color change to light brown,
5 silty, fine to medium coarse,
pebbles, rock fragments,
rocks, cobbles, scattered
debris, dry
- Abandoned infiltration test boring @ 1.5ft
due to resistance (concentrations of rock
and cobbles)
10 - no bedrock
- no groundwater
15 20
25 30
Groundwater: n/a Site Location Plate #
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a Upland, California
Soils Southwest, Inc,
897 Via Lata, Suite N LOG OF BORING P-4
Colton, CA 92324
(909) 370-0474 Fax(909)370-3156
Protect: San Antonio Water District Headquarters Job No.: 24036-F/BMP Logged By: John F. I Boring Diam.: 8" ESA _ Date: August 9, 2024 f
LL N 'E'= o - a a`
• y o
U0
C 5 m a E • Description and Remarks n t ; p d ❑ CS w 4. w 0G
1n N oLIg. 1p m_ C al O C R T , m N GP • • i \disturbed surface gravels and soils
-1 GRAVEL with little sand, rocks, cobbles,and
occasional small boulders, dry
- Abandoned infiltration test boring 9 1.Oft
due to resistance( concentration of rocks
cobbles)
5 --- no bedrock
- no groundwater
10 1.5
20 25
30 r Groundwater: n/a Site Location
L Plate #
Approx. Depth of Bedrock: n/a
Datum: n/a Planned Headquarter Facility
400 East 20th Street
Elevation: n/a Upland. California
KEY TO SYMBOLS
Symbol Description
Strata symbols
• Poorly graded gravel
144 Nt Silty sand and gravel
Silty sand
Notes•
1 . Exploratory borings were drilled on August 9, 2024 using a 4-inch diameter continuous flight power auger.
2 . No free water was encountered at the time of drilling or when re-checked the following day.
3 . Boring locations were taped from existing features and elevations extrapolated from the final design schematic plan . 4 . These logs are subject to the limitations, conclusions, and recommendations in this report.
5 . Results ❑f tests conducted on samples recovered are reported Page 954 of 1374 on the logs . _ _ _
.:--'"' �- • •.•••i i •:/ •,
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LEGEND
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SURFICIAL SEDIMENTS
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Qg alluvial grave!and sand of stream channels
Qa alluvial gravel and sand of valley areas
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•
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Contact Us Subscribe■ I Archived Soil Surveys Soil Survey Status Glossary Preferences Link Logout Help Area of Interest (A01) Soil Ma Soil Data Explorer Download Soils Data Shopping Cart (Free) Search Q Soil Map
c
Map Unit Legend 0 & :� Li, J � 1 Q J scale tl, / .. t,
San Bernardino County Southwestern Part, 1 r�..,,gea,s, + _ California (CA677) I s :±*� � r 411.
San Bernardino County Southwestern — tlf "� _ , - , ..-
Part, California (CA677) -
►.. +� 4 ' r ■f. ( ?'pis
Map Unit Map Unit Name Acres Percent ofill5P�- 1■ �- ;.,$t r Symbol in AQI AQI HaC Hanford coarse 11.8 17.2% ?4y • . �11.11),v.? - 4 •- ►= 1 ,
sand loam, 2 ►: IV"
'er • _ w-
to 9 percent . AIL,
slopes r - ;-
RmC Ramona sandy 5.7 8.3°Ia 1i .� it I ,;` - ; �-�0 - - r,• ,�
loam, to 9 f+. e +. I
.r ,� 11 •Hmc ram'
percent slopes, , ;�■.` / 4� # MLRA 19 , 1 --4 Mgr • '�' '?� .
SoC Soboba gravelly 9.9 14.5% . ••• _ loamy sand, 0 l l „ i .,• �r. w to 9 percent 1 p--" I _ �'tia 'Li �,,' slopes ram' + _t _ ' '' r� ; '� `A tor SpC Soboba stony 41.2 C0.0°I° I
: 4 e Si • r ......
�
loamy sand, 2 w • qr. ,A'
to 9 percent +� Ill* i ": i
slopes y Y '', - , . 411 1 . 7/ -'2*.
Totals for Area of 68.7 100.0% ' f - - ` . rage-9347of 1374 a T.-.ro.-o..-e '"-. ►. A .6. i lag , _ . i St 1
Map Unit Description:Soboba stony loamy sand,2 to 9 percent slopes--San Bernardino 24036-FBMPSan Antonio Water County Southwestern Part.California Dist,HDQ,400 B.20th St..Upland.
California
San Bernardino County Southwestern Part, California
SpC—Soboba stony loamy sand, 2 to 9 percent slopes
Map Unit Setting
National map unit symbol: hckv
Elevation: 960 to 3,690 feet
Mean annual precipitation: 12 to 39 inches
Mean annual air temperature: 60 to 65 degrees F
Frost-free period: 260 to 365 days
Farmland classification: Not prime farmland
Map Unit Composition
Soboba and similar soils:85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Soboba
Setting
Landform:Alluvial fans
Landform position (two-dimensional):Footsiope
Landform position (three-dimensional):Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material:Alluvium derived from granite
Typical profile
Ap-0 to 10 inches: stony loamy sand
Cl - 10 to 24 inches: very stony foamy sand
C2-24 to 60 inches: very stony sand
Properties and qualities
Slope: 2 to 9 percent
Surface area covered with cobbles, stones or boulders:0.1 percent Depth to restrictive feature: More than 80 inches
Drainage class: Excessively drained
Runoff class: Low
Capacity of the most limiting layer to transmit water(Ksat). High to very high (6.00 to 19.99 infhr)
Depth to water table: More than 80 inches
Frequency of flooding: Rare
Frequency of ponding:None
Maximum salinity:Nonsaline (0.0 to 1.0 mmhoslcm)
Available water supply, 0 to 60 inches: Low(about 3.8 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: A
Ecological site: R019XG912CA-Sandy Fan
tIS1')A Natural Resources Web Soil Survey 7/22/2024 r Conservation Service National Cooperative Soil Survey Page 1 of 2
Map Unit Description:Sobaba stony loamy sand,2 to 9 percent slopes—San Bernardino 24036-FBMPSan Antonio Water County Southwestern Part,California Dist,HDQ,400 E.20th St.,Upland, California
Hydric soil rating: No
Minor Components
Hanford
Percent of map unit:5 percent
Landform:Alluvial fans
Landform position (two-dimensional):Toeslope
Landform position(three-dimensional):Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Ramona
Percent of map unit:5 percent
Landform: Fan remnants
Landform position (Three-dimensional):Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Tujunga, gravelly loamy sand
Percent of map unit:5 percent
Landform:Alluvial fans
Landform position (two-dimensional): Footslope
Landform position(three-dimensional):Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Data Source Information
Soil Survey Area: San Bernardino County Southwestern Part, California Survey Area Data: Version 15, Aug 30, 2023
USDA Natural Resources Web Soil Survey 7/22/2024 Conservation Service National Cooperative Soil Survey Page 2 of 2
Map Unit Description:Soboba gravelly loamy sand,0 to 9 percent slopes--San Bernardino 24036-FBMPSan Antonio Water County Southwestern Part,California Dist,FIDQ,400 E.20th St.,Upland, California
San Bernardino County Southwestern Part, California
SoC—Soboba gravelly loamy sand, 0 to 9 percent slopes
Map Unit Setting
National map unit symbol: hckt
Elevation: 30 to 4,200 feet
Mean annual precipitation: 10 to 20 inches
Mean annual air temperature: 61 to 63 degrees F
Frost-free period: 175 to 250 days
Farmland classification: Not prime farmland
Map Unit Composition
Soboba and similar soils:85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transacts of the mapunit.
Description of Soboba
Setting
Landform:Alluvial fans
Landform position(two-dimensional): Backslope
Landform position (three-dimensional):Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material:Alluvium derived from granite
Typical profile
H1 -0 to 12 inches: gravelly loamy sand
H2- 12 to 36 inches: very gravelly loamy sand
H3-36 to 60 inches: very stony sand
Properties and qualities
Slope:0 to 9 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Excessively drained
Runoff class: Low
Capacity of the most limiting layer to transmit water(Ksat): High to very high (5,95 to 19.98 inlhr)
Depth to water table: More than 80 inches
Frequency of flooding:Rare
Frequency of ponding: None
Maximum salinity: Nonsaline (0.0 to 1.0 mmhoslcm)
Available water supply, 0 to 60 inches: Low(about 3.2 inches) Interpretive groups
Land capability classification (irrigated): 4s
Land capability classification (nonirrigafed): 6s
Hydrologic Soil Group: A
Ecological site: R019XG912CA-Sandy Fan
Hydric soil rating: No
tiSDA Natural Resources Web Soil Survey 7/22/2024 Conservation Service National Cooperative Soil Survey Page 1 of 2
Map Unit Description:Soboba gravelly loamy sand,0 to 9 percent slopes—San Bernardino 24036-FBMPSan Antonio Water County Southwestern Part,California Dist,HDQ,400 E.20th St.,Upland, California
Minor Components
Unnamed
Percent of map unit:5 percent
Hydric soil rating: No
Delhi,fine sand
Percent of map unit:5 percent
Hydric soil rating: No
Tujunga, gravelly loam
Percent of map unit:3 percent
Hydric soil rating: No
Unnamed
Percent of map unit:2 percent
Landform: Drainageways
Hydric soil rating: Yes
Data Source Information
Soil Survey Area: San Bernardino County Southwestern Part, California Survey Area Data: Version 15, Aug 30, 2023
USn.I Natural Resources Web Soil Survey 7/22/2024 Conservation Service National Cooperative Soil Survey Page 2 of
Map Unit Description:Hanford coarse sandy loam,2 to 9 percent slopes---San Bernardino 24036-FBMPSan Antonio Water County Southwestern Part,California Dist,HDQ,400 E.20th St.,Upland, California
San Bernardino County Southwestern Part, California
HaC—Hanford coarse sandy loam, 2 to 9 percent slopes
Map Unit Setting
National map unit symbol: 2y8t1
Elevation: 890 to 2,860 feet
Mean annual precipitation: 11 to 22 inches
Mean annual air temperature: 64 to 65 degrees F
Frost-free period: 320 to 365 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Hanford and similar soils:85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transacts of the►napunit.
Description of Hanford
Setting
Landform:Alluvial fans
Landform position (three-dimensional):Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material:Alluvium derived from granite
Typical profile
A -0 to 12 inches: sandy loam
C- 12 to 60 inches: fine sandy loam
Properties and qualities
Slope:2 to 9 percent
Depth to restrictive feature: More than 80 inches
Drainage class:Welt drained
Runoff class: Low
Capacity of the most limiting layer to transmit water(Ksat):High (1.98 to 5.95 inlhr)
Depth to water table: More than 80 inches
Frequency of flooding: Rare
Frequency of panding:None
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water supply, 0 to 60 inches: Moderate(about 7.8 inches)
Interpretive groups
Land capability classification (irrigated): 2e
Land capability classification (nonirrigafed): 3e
Hydrologic Soil Group: A
Ecological site: R019XG911 CA-Loamy Fan
Hydric soil rating: No
t= Natural Resources Web Sail Survey 7/22/2024 Conservation Service National Cooperative Soil Survey Page 1 of 2
Map Unit Description:Hanford coarse sandy loam,2 to 9 percent slopes—San Bernardino 24036-FBMPSan Antonio Water County Southwestern Part,California ❑ist,HDQ,400 E.20th St.,Upland, California
Minor Components
Greenfield, sandy loam
Percent of map unit: 10 percent
Landforrn:Alluvial fans
Landform position (three-dimensional):Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Tujunga, loamy sand
Percent of map unit:5 percent
Landform:Alluvial fans
Landform position (three-dimensional):Tread
Dawn-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Data Source Information
Soil Survey Area: San Bernardino County Southwestern Part, California Survey Area Data: Version 15, Aug 30, 2023
USDA Natural Resources Web Soil Survey 7122/2024 A Conservation Service National Cooperative Soil Survey Page 2 of 2
San Antonio Water District Headquarters/400 E.20th Street, Upland-SBDCo_ 24036-F/BMP
APPENDIX B
Laboratory Test Programs
Laboratory tests were conducted on representative soils for the purpose of classification and for the determination of the physical properties and engineering characteristics. The number and selection of the types of testing for a given study are based on the geotechnical conditions of the site. A summary of the various laboratory tests performed for the project is presented below.
Moisture Content and Dry Density (D2937):
Data obtained from these tests, performed on undisturbed samples are used to aid in the classification and correlation of the soils and to provide qualitative information regarding soil strength and compressibility.
Direct Shear(D3080)
Data obtained from this test performed at increased and field moisture conditions on relatively remolded soil sample is used to evaluate soil shear strengths. Samples contained in brass sampler rings, placed directly on test apparatus are sheared at a constant strain rate of 0.002 inch per minute under saturated conditions and under varying loads appropriate to represent anticipated structural loadings. Shearing deformations are recorded to failure. Peak and/or residual shear strengths are obtained from the measured shearing load versus deflection curve. Test results, plotted on graphical form, are presented on Plate B-1 of this section.
Consolidation (D2835):
Drive-tube samples are tested at their field moisture contents and at increased moisture conditions since the soils may become saturated during lifetime use of the planned structure.
Data obtained from this test performed on relatively undisturbed and/or remolded samples, were used to evaluate the consolidation characteristics of foundation soils under anticipated foundation loadings.
Preparation for this test involved trimming the sample, placing it in a one-inch-high brass ring, and loading it into the test apparatus which contained porous stones to accommodate drainage during testing. Normal axial loads are applied at a load increment ratio, successive loads being generally twice the preceding.
Soil samples are usually under light normal load conditions to accommodate seating of the apparatus.
Samples were tested at the field moisture conditions at a predetermined normal load. Potentially moisture sensitive soil typically demonstrated significant volume change with the introduction of free water. The results of the consolidation tests are presented in graphical forms on Plate B-2.
August 28,2U N ;•a. ._
San Antonio Water District Headquarters/400 E.20`"Street,Upland-SBDCo. 24036-FBMP Laboratory Test Results
Table I_ Max. Density/Optimum Moisture Content(ASTM D1557) Sample Location @ Depth, feet Max, Dry Density, pcf Optimum Moisture Content, % B-1 @ 0-3
SAND—GP-SP Tannish light
brown, gravel sand mixture, fine 133 8.0 to coarse with trace silts, rock
fragments, rocks, and cobbles
Table Ill: Direct Shear(ASTM D3080)
Test Boring No.
Test Cohesion, psf Friction, degrees
Sample Depth, feet Condition
B-1 @ 0-3 Remolded to 640 39
90%
Table IV: Consolidation (ASTM D2435)
Boring No., Depth, feet Consolidation Hydro Total Consolidation, B prior to Collapse, % % @ 8 kips
saturation, % @ 2 kips (saturated)
@ 2 kips
•
1 0-3 0.5 0.1 1.8
(remolded)
Table V: Sand Equivalent, SE (ASTM D2419)
Sample Location @ depth, feet Sand Equivalent Average,SE B-3 @ 0-3.0 55.9
B-6 @ 0-3.0 46.7
hugust 28,2024
San Antonio Water District Headquarters/400 E.20'"Street, Jpiand-SBDCo. 24036-F/BMP Table VI: Sieve Analysis (ASTM D422)
SAMPLE B-6 @ 0-3 feet
Grain Size % Retained
_Gravels 33
Medium to Coarse 37
Fines 18
Silts 12
Table VII: Soils' Chemical Test Results at Sample Location 8-1 @ 0-3 feet Sample Method Result Units Remarks
pH EPA 9040 B 7.93 units Not corrosive
Resistivity SM 2510B 3,640 ohms-cm Moderately
corrosive
Chloride EPA 300.0 29 mg/kg Not corrosive
Sulfate EPA 300.0 82 mg/kg Not corrosive
Table VIII: Soils' Density Correlation to SPT Blow Counts Density/Consistency 1" Soil Tube --Blows Per Foot
Standard Penetration
Sand Blows Per Foot
Granular Cohesive and Silt Clay
Gravel
•
Very Loose Very Soft 0-50 0-50 0-60 0-5 Loose Soft 50-100 50-180 60-250 5-10
Slightly Stiff 100-350 180-1000 250-1000 10-20 Compact
Compact Very Stiff 350-525 1000-2000 1000-4000 20-35 Dense Hard 525-1500 2000-5000 4000-5000 35-70 Very Dense Very Hard 1500+ 5000+ 5000+ 70+ August 28,2(124
DIRECT.SHEAR TESTS
a a'to
a
1111111"11161.11.11111.1116—
a
1 1 5; —1 - --� '
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x 1 I#
u 1 -4- -1---- I
a I
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Ft a I I I ; I
r
0 0.5 V t t.5 llr2 2.5
NORMAL LOAD{KIPS PER SQUARE FOOT)
SYMBOL LOCATION DEPTH TEST COHESION FRICTION (FT) CONDITION (psf) (degree)
■ B-9 0 to 3 Remolded to 90% 640.10 39.08 Proposed Administrative Office and Maintenance Structures PR NO CT 24036-F 400 E. 20th Street
Upiand, California PLATE B-1
SOILS SOUTHWEST, INC.
hA Consulting Foundation Engineers
CONSOLIDATION TESTS
LOADS IN KIPS PER SQUARE FOOT .
a.. .
2 a.
3 00 ' --
A a-1 @ 0-3 ft. _ . —
z 5 Remolded to 90%
Q 6 _ Initial Moisture Content 8.0%
Final Moisture Content m 12.7%
5 7. .
0 co 8
fQ 9 00 1 _ _
' $o. — - 0 - - •
ac 1i.
w
a 12
13 15- J
16 _.. . ___lmiiiip,_,
• WATER PERMITTED TO CONTACT SAMPLE
stigiirA PROJECT Proposed Adirninstrative Office and Maintenance Structures 400 E. 20th Street
PROJECT NO. 24036-F PLATE B-2
SOILS SOUTHWEST INC.
Consulting Foundation Engineers
GRAIN SIZE DISTRIBUTION
Project: San Antonio Water District Ha) Job# 24036-F Location: 400 E.20th Street,Upland Boring No: B-6/P2(a7.0-3' Sample No: 9 Description of Soil: GP-SP
Date of Sample: 8/9/2024
Tested By: JG Date of Testing: 8/16/2024
Sieve No. Sieve Openings in mm Percent Finer Grain Size %Retained 4 4.76 66.74 Gravel 33
10 2.38 52.74 Med. to Crs 37
20 0.84 39.34 Fines 18
40 0.42 28.74 Silts 12
60 0.28 22.54
100 0,149 17.20
4_
200 0.074 10.44
Gravel Sand
Coarse to Medium I
Fine Silt Clay
v. - cav v o 0
z z z a z z z° U.S. Standard Sieve Size T
70 4.76` _ .. ,--.---- - - - -- - -
L 50 2.38 �.
0 40 0.84..— .—_,--_ r
'
ca
L. 1
if 30 _ _ __ D4Zee --•
20 0: _
0.'¢9
10 - — - - - , -0/0 4- _ - -
0 — l I -
10.00 1.00 0.10 0.01 0.00
Grain diameter, mm
Visual Soil Description : GRAVEL/SAND mixture with trace silts, fine to coarse with rock fragments, rocks, and cabbies
Soil Classification: GP-SP
System: USC
SOILS SOUTHWEST INC.
Consulting Foundation Engineers
SAND EQUIVALENT TEST
Test Date: August 16,2024
Project No.: 24036-F/PV
Job Name: San Antonio Water District Headquarters
400 E. 20th Street
Upland
Sample Location: B-6/PV-2 @ 0-3ft
Sample by: JF Tested by: JG
LABORATORY DATA
SAMPLE I - 2 3 4
NO.
TIME START 6:13 6:18 6:23
TIME SOAK 6:23 6:28 6:33
(10 min-)
TIME AT 6:25 6:30 6:35
LEVEL
15ML
TIME of 6:45 6:50 6:55
READING
(20-min) _-
FINE, ML 5.8 5.6 5.7
COARSE, ML 2.8 2.6 2.6
SE _ 100x 48.27 46.42 45.61
(coarse/fine)
SE Average 46.76
SOILS SOUTHWEST, INC.
CONSULTING FOUNDATION
ENGINEERS
SAND EQUIVALENT TEST
Test Date: August 15,2024
Project No.: 24036-F/PV
Job Name: San Antonio Water District Headquarters
400 E. 20th Street
Upland
Sample Location: B-3/PV-1 @ 0-3ft
Sample by: JF Tested by: JG
LABORATORY DATA
SAMPLE 1 2 3 4
NO.
TIME START 1:52 1:57 2:02
TIME SOAK 2:02 2:07 2:12
(10 min.)
TIME AT 2:04 2:09 2:14
LEVEL
1 5ML
TIME of 2:24 2:29 2:34
READING
(20-min)
FINE, ML 6.0 5.8 5.7
COARSE, ML 3.6 3.0 3.2
SE = 100x 60 51.7 56.1
Jcoarselfne)
SE Average 55.9
SOILS SOUTHWEST, INC.
CONSULTING FOUNDATION
ENGINEERS
Page I of 2
A & R Laboratories, Inc.
1650 S.GROVE AVE.,SUITE C
ONTARIO,CA 91761
909-781-6335
www.arlaboralories.coui ollict*arlaborawries-coi CIIEMISTRY•MICROBIOLOGY•FOOD SAFETY-MOBILE LABORATORIES FOOL]•COSMETICS•WATER-SOIL-SOIL VAPOR WASTES
CASE NARRATIVE
Authorized Signature Name I Title(print) Ken Zheng, President Signature Date ""'�'".d 0
w,srxm. :w
Laboratory Job No.(Certificate of Analysis No.) 2408-00123 Project Name/No. 24036-F SAN ANTONIO WTR DIST. /400 E.20th ST., UPLAND
Dates Sampled(from/to) 08/14/24 To 08/14/21
Dates Received(from/to) 08/15/24 To 08/15/24
Dates Reported(from/to) 08/19/24 To 8/19/2024
Chains of Custody Received Yes
Comments:
Subcontracting
Inorganic Analyses
No analyses sub-contracted
•Other Analyses
No analyses sub-contracted
Sample Condition(s)
All samples intact
Positive Results(Organic Compounds)
None
Thr dab and irde motion on ttus,and Om atn dnpa vog docup>rrtt,rrvte xy+t OnlY the itntpkks}analr od and is rendered upon daimr that a is pat to txr rrprndKed wlniry nr at 0Orl,lr a c.-Mr rg or rats t.rt>ac.`.%IMOL:aplxovat Gorr Re latoralery. liS➢A-EPA4IIOStt Testing Food Sanitation consulting Chemical and Microbiological analyses and Research Page 971 of 1374
- A & R Laboratories, Inc.
1650 S.GROVL AVER.,SUITE C
ONTARIO*CA 91761
909-781-6335
www,arlahuralaries.cout oIUicekarlahurawrius.cnm
CiIF_MISTRY•MICROBIOLOGY-FOOD SAFETY-MOBILE LABORATORIES FOOD-COSMETICS-WATER•SOIL•SOIL VAPOR WASTES
CERTIFICATE OF ANALYSIS
2408-00123
SOILS SOUTHWEST INC Date Reported 08/19/24
MOLDY GUP'L'A Date Received 08/15/24
897 VIA LATA SUITE N invoice No. 2349
COLTON,CA 92324 C'.ust/I S192
Permit N(ltnher
Project: 24036-F SAN ANTONIO WTR DIST./400 E.20th ST.,UPLAND Customer P.O.
Analysis Result Qual Units Method DP RI. Date Tech Sample: 001 B-1ta10-3ft Date&rime Sampled: 08/14/24 4 10:00 Sample Matrix: Soil
pFi4l25C-as Dissolved in Wtr 7,93 units EPA 9040 B 1.0 0 08/15/24 DV Resistivity 3640 ohms/cm SM 251013 1.0 1,0 08/15/24 DV Chloride 29 mg/Kg EPA 300.0(1993 Rev 2.: t.0 5.0 08/18/24 11B Sulfate 82 mg/Kg EPA 300.0(1993 Rev 2.: 1.0 5.0 08/18/21 Ttdi Respectfully Submitted:
Ken Zlieng-Lab 1)irector
QUALIFIERS ABBREVIATIONS
B=Detected in the assodaled Method Blank at a concentration above the routine RL. DF= Dilution Factor B1=SOD dilution water is over specifications.The reported result may be biased high. RL=Reporting Limit,Adjusted by DI D=Surrogate recoveries are not calculated due to sample dilution. MDL=Method Detection Limit,Adjusted by OF E=Estimated value;Value exceeds calibration level of instrument, Qual=Qualifier H=Analyte was prepared and/or analyzed outside of the analytical method holding time Tech=Technician I=Matrix Interference.
J=Anatyte concentration detected between Rt.and MDL.
Q=One or more quality control criteria did not meet specifications. See Comments for further explanation.
S=Customer provided specification limit exceeded.
The data and Inlnmatlan on tins,end other oonnywnynny dowrnene..rept eserst only the idmpk(si isnetp d and is rendered upon cnrtdiiiun Pot it Ls not to he reproduced,vAxdly u n dart,tar adverbanrl r)r other purposes wrttnut approved(sum the laboratory. eSDA-EPA-nrosH Testing Fund Sanitation Consulting Chemical and Ninphlolee cal analyses and Research Page 972 of 1374
s
ART 1650 Grove Aye. Ste C. Ontario, CA 91761 CHAIN OF CUSTODY A&t Work Order :
Tel: 951-779-03TOI909-78T-6335 Fax: 951-779-6344
E-mail: oificeearlaboratories.com ��� � � Page ` of Client Name
n ' ! Liv `-, I"' c , -i / r'n c . Chilled Analyses Requested Turn TimeAround Requested
E-mail r ? / / 1 / - _ _ S I �j 5 s,a +LI 1--,e... . - r-�. 4 0 1 . CAS""' +p( q' I - I v, o a ' Intact U �? 0 Rush
Address , C z w
3 9 7 1/.'e,, +S 2S S r fr- IV Co ✓/0 n G f� w 4 [i 8 12 24 48 Report� {,. Attention Phone g g o9- 370 - 04 7., Sam led Byr /. ©Seal x %' _ g < o , Hours i;L{J ti7 Fax: -1 Q ' 'a r Project Z 4 D-% . _ P Project Site a o E'a )7L 2 0 fli Sf reef L! /4� c i x I'd F, 8 . 8 + 1- `Cl[�armai No./Name 7 O in --- E. a c4 S 6 ie I. Nn s Lab # Client Sample Collection Matrix Sample Na.,type` 4 d Fz, co Q co � - 17Is .S — & size of m m 0 m x m c<n a ? V Remarks iLa5L5rf Sample ID Date Time Type Preserve Container 0_ a. N o a 0_ < 0. 2 V u..1 LL1 CO CO L-1 LL 1.11 LU M2 f / j f .a- ._ / g. 4 -3 A l' A¢/e{ 1D:oJ gaf 1 -S r 4 nu.�ce ✓ ✓ Y t/ G ,
3 0
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•
+
Ze..1n;:juittd Bye_ Com any dDate Till Re�.eiv 8 Company ate iTime .iiiLi!{t5 t: } '11'� 'f(5- ^ .23 Note: Samples are discarded 30 days after results are enquished By Company Date Time • Received By�pany Date Time reported unless other arrangements are made.
Matrix Code- DW=Drinking Water St_=Sludge Preservative Code lC'lce SH=NeOH ' Sample Container Types:
GW--Ground Water SS=SoiliSediment HC=HCI ST=NasSzi0 T.Tedlar Air Bag . Br Brass Tube E=EnCore WW-Waste Water AR=AIr HN=FiNOa HS=Nano: G=Giass Container P=Plastic Bo t€er,a e 973 of 1374 SD-Solid Waste PP=Pure Product ST-Steal Tube V-VOA Vial r g
A R Sample Acceptance Checklist
CLIENT: GO\\r> } � � WORK ORDER NUMBER: tiC1sj • 1� Temperature:(Criteria:0.0°C-6.0°C)
Sample Temp. (°C) .5` (iz - ID#: 2 7 `0030) Sample(s) outside temprature criteria: PM contacted by
Sample(s) outside temprature criteria, but received on ice/chilled on same day of sampling.
Sample(s) received at ambient temprature; placed on ice for transport by courier, CUSTODY SEAL:
Cooler Present and Intact Present and Not Intact Not Present Sarnple(s) Present and Intact Present and Not Intact y, Not Present Sample Condition: Yes No N/A
Was a COC received r�
Were sample IDs present?
Were sampling dates & times present?
Was a relingquished signature present?
Were the tests required clearly indicated?
Were all samples sealed in plastic bags? -
Did all bottle labels agree with COC? (ID, dates and times) Were correct containers used for the tests required?
Was a sufficient amount of samples sent for tests indicated? r' Was there headspace in VOA vials?
Were the containers labeled with correct preservatives? ExplanationslComments:
'Notification:
For discrepancies, how was the Project Manager notified? Verbal: PM Initials: Data/Time:
Email: Send to: Data/Time:
Project Manager's response:
Completed By: (AA,./1,A Date: Ph.5 li q
A R Laboratories
1650 S. Grove Ave., Suite C, Ontario, CA 91761
PH: 909-781-6335
Email: [email protected]
ANAHEIM TEST LAB, INC
196 Technology Drive.Unit D
Irvine, CA 92618
Phone (9491 336-6544
TO:
DATE:8/26/2024
SOILS SOUTHWEST. INC.
897 VIA LATA,SUITE N P.Q. NO.:Verbal
COLTON, CA.92324
LAB NO.:C-8132
SPECIFICATION:CA 301
MATERIAL:Brown,Silty Sand w.
Gravel
Project No.:24036-F
Project:San Antonio Water District HDQ
400 East 20"i St, Upland, CA
Sample ID: B-6/PV-2 @ 0-3'
Sample Date:8/16/2024
ANALYTICAL REPORT
"R" VALUE
¢Y EXUDATION BY EXPANS)ON
75 N/A
RESPECTFULLY SUBMITTED
VV�
WES BRIDGER LA ANAGER
"R" VALUE CA301
Client: Soils Southwest, Inc. ATL No.: C 8132 Date: 8/26/2024 Client Reference No.: 24036-F
Sample: B-6/PV-2 @a 0-3' Soil Type:Brown, Silty Sand w. Gravel TEST SPECIMEN A B C D
Compactor Air Pressure psi 350 350 350
Initial Moisture Content % 2.0 2.0 2.0
Moisture at Compaction °Io 7.6 7.1 7.3
Briquette Height in. 2.45 2.46 2.49
Dry Density pcf 135.5 134.2 134.8
EXUDATION PRESSURE psi 184 616 322
EXPANSION PRESSURE psf 0 0 0
Ph at 1000 pounds psi 20 13 16
Ph at 2000 pounds psi 35 22 28
Displacement turns 3.45 3.86 3.81
"R"Value 72 80 76
CORRECTED "R"VALUE 72 80 76
Final "R" Value
BY EXUDATION: 75
Q 300 psi
BY EXPANSION: N/A
TI=5.0
90 1;1, I1111HEE111111111l311E1E:::::E1tfl e
tr : r.. I.
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San Antonio Water District Headquarters/400 E.20th Street,Upland-SBDCo, 24036-FIBMP
APPENDIX C
Supplemental Seismic Design Parameters
FEMA National Flood Hazard Layer Map
SSW AuIijt 2P, ifi24 P9. I
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eGOV . _ , - Department of Conservation I . I - California Department of Conservation California Geological Survey Fault Activity Map of California California Groksgicai Surrey 0 IS II 0 .500 E.26tn St.Upland CA 117E X 0.11
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Back to Top Conditions of Use Privacy Policy Accessibility Contact Us
Earthquake Zones of Required Investigation
Mount Baldy Quadrangle
California Geological Survey
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AREA NOT EVALUATED FOR
LIQUEFACTION OR LANDSLIDES © =r`r �` � - 11 ..14,..r... 7:,."...-) /', -- -'=.-==7_"=-7. -7 - - '. .ki -..,. ,,,t.:_-„.
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ASCE'
ASCE Hazards Report
AMtt6rM SOCIETY or CM IItaGIHE{EiS
Address: Standard: ASCE/SEI 7-16 Latitude: 34.135692 No Address at This Location Risk Category: Ill Longitude: -117.64504 Soil Class: D-Stiff Soil Elevation: 1649.1604629371752 ft (NAVD 88)
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ASCE.
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Seismic
Site Soil Class: D-Stiff Soil
Results:
Ss : 1.766 Sol : N/A
S, : 0.658 TL : 12
Fa : 1 PGA: 0.753
F„ : N/A PGA M : 0.829
SMs : 1.766 FPGA : 1.1
S:v„ : N/A le : 1.25
Sips : 1.177 C : 1.453
Ground motion hazard analysis may be required. See ASCE/SEI 7-16 Section 11.4.8.
Data Accessed: Mon Jul 22 2024
Date Source: USGS Seismic Design Maas
htlos:llascehazard toot.orgl Page 2 of 3 Mon Jul 22 2024
U.S.Geological Survey-Earthquake Hazards Program
2008 National Seismic Hazard Maps - Source Parameters
New Search
Pref
Rupture Rupture
Distance Slip Dip Dip Stip Length
in Miles Name State Rate (degrees) Dir Sense Top Bottom (km) ( +fyr) (km) {km)
1.30 Aga CA 5 45 N thrust 0 8 28 strike
3.02 a Jn CA 0.5 74 NW 0 15 20 slip
5.56 Sierra Madre CA 2 53 N reverse 0 14 57
5.56 Sierra Madre Cannerled CA 2 51 reverse 0 14 75 strike
9.14 Chino,alt I CA 1 65 5W slip 0 14 29 strike
9.22 China,alt I CA 1 50 SW 0 9 24 slip
strike •
11.28 San Jacinto;SBV+SJV+A CA nJa 90 V 0 16 134 slip
strike
11.28 San Jacinto;SBV4-5JV CA n/a 90 V 0 16 88 slip
strike
11.28 San Jacinto;SBV+SJV+A+C CA n/a 90 V 0 17 181 slip
strike
11.28 San Jacinto;SBV+SJV+A+CC CA n/a 90 V 0 16 181 slip
strike
11.28 San JacintQ;SBV CA 6 90 V s€i p 0 16 45 strike
11.28 5 n Jacinto;$BV+SJV+A+CC+B+SM CA nfa 90 V 0.1 15 241 slip
strike
11.28 San Jacirlto;SBV+SJV+A+CC+B CA n/a 90 V 0.1 15 215 slip
strike
13.53 S..San Andreal;f1B+NM+SM+NSB+SSB+BG+CO CA nJa 85 0.1 13 390 slip
S.San strike
13.53 CA Aitdreaq;CH+CC+BB+NM+SM+NSE�+$,SEA+BG+CO n/a 86 0.1 13 512 slip
strike
13.53 S.San Andrea s;N58+SSB+BG+•C° CA n/a 79 0.2 12 206 slip
strike
13.53 5.SanAndreas;BB+NM+SM+NSB CA nfa 90 V 0 14 220 slip
U.S. Geological Survey- Earthquake Hazards Program
2008 National Seismic Hazard Maps - Source
Parameters
New Search
Fault Name State
Cucamonga California
GEOMETRY
Dip (degrees) 45
Dip direction N
Sense of slip thrust
Rupture top(km) 0
Rupture bottom (km) 8
Rake(degrees) 90
Length (kni) 28
MODEL VALUES
Slip Rate 5
Probability of activity 1
ELLSWORTH HANKS
Minimum magnitude 6.5 6.5
Maximum magnitude 6.70 6.50
b-value 0.8 0,8
Deformation
Fault Model Char Rates GR-a-value1 Weight Model
Stitched 2.1 3.31e-03/6.61e-03 2.648/NA 0.50 UnStitched 2.1 3.31e-03/6.61e-03 2.648/NA 0.50 Stitched 2.4 3.31e-03/6.61e-03 2.648/NA 0.50 UnStitched 2.4 3.31e-03 16.61e-03 2.648/NA 0.50 1 1st Value is based on Ellsworth relation and 2nd value is based on Hanks and Bakun relation
Comments
Slip rate based on cumulative vertical displacement across three strands reported by Morton and Matti (1987,1991).
National Flood Hazard Layer FI RMetteF N _\ Legend 11 7-39'4Yr 34°875"N SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Ill
R lb 1 T i Without Base Flood Elevation OWE)1 i• ‘ * 1 `• U a iii 117641D a - -- Zox A.V.493
SPECIAL FLOOD
With BFE or Depth zonr AE.AO.AN.VE.AR
} f t f ' r' ~ I la HAZARD AREAS Regulatory Floodway 'I R
M `. w io .. •_ Fr'
.fie t a e ' 0.2%Annual Chance Flood Hazard,Areas _ ,� y - of 1%annual chance flood with average f depth less than one foot or with drainage
V
• ' $iit , - " f + 4 ti • areas of less than one square mile:r +' y
�� rR *` ` ��:' •
_ Future Conditions i%Annual
_ - • ; i
Chance Flood Hazard Zo,rx
�� • f f ■■ L er: t Area with Reduced Flood Risk due to • • Svir r ,We# •. OTHER AREAS OF Levee.See Notes.�^=c x ` 4 •3• • . a _ $,111. $1FLOOD HAZARD Area with Flood Risk due to t.eveszar••n f .
f - j K• • - ,
• T �r.r1 +R I NO scam Area of Minimal Flood Hazard zanrx .' I or
Tf f * t eI1 EffectiveLOMRs
g.• • a t- _ e 1C• , .4 ■ OTHER AREAS Area of Undetermined Flood Hazard:
•
t je
•� ,14 31 i6 _ ti • . J . ., `* '• IIGENERA♦ ^—-- Channel,Culvert,or Storm Sewer r -
~li STRUCTURES 1 1 11 1 1 1 Levee,Dike,or floodwall '� V 4
err . .1.Y ; A • 0 2D-2 Cross Sections with 1%Annual Chance r - t�•s Water Surface Elevation
• ] AREA OFMINIMAL FLOOD HAZARDr- - - Coastal Transe•ct i'f 04 44* �- Z X ', VOW!
M -,'•••- Base Rood Elevation Line(BEE)
t , f * fi a ' ., Limit of Study ' . -1lam IT�R 50 I.' r eity)of Upland �"` T44 Co star Trn Boundary
r T 7 ' rur --- Coastal Transect Baseline a lb t~" IIIIII . 11141i• i 06071 C78701 . - n FEAT TH ES - — Profile Baseline • xHydrographic Feature
4 I e• 9/ZJ2ti16 . . .�
--•- a3 Digital Data Available
ti
' _ No Digital Data Available
MAP PANELS;•
Unmapped
r - -— �� The pin displayed on the map Is an approximate i .0 ; t _. - __ point selected 6y the user and does not represent LL 7• r `T an authoritative property location. .i I i This map complies with FEMA's standards for the use of ■ �„ tr• 6 • — digital flood maps if it is not void as described below. i _ e The basemap shown compiles with FEMA's basemap ` S 3 N*., . yaccuracy standards
'irC'f E
■ _ _ �' f 1 The flood hazard Information Is derived directly from the + e authoritative NFHL web services provided by FEMA.This map Jib_ r }. = + f was exported on; 22.'2132a at 3 06 PM and does not pi%
.,F y ^ • • I9 ' veneer changes or amendments subsequent tD this date and •
I1 le. '• • time.The NFHL and effective information may change or +i.r+ ++ � _. _ • • }1 I become superseded by new data overtime.
F "4 r_ + . �` .1 .." � r 1 I ;- f-`� This map image is void if the one or more of the following map w _ 1 •"` —•- _ #, 4 e]i li yy elements do not appear,basemap Imagery,flood zone labels, f •• I •1 ! -i '• , ,■ legend,scale bar,map creation date,community Identifiers, 117'38'27't4 34'755"N FIRM panel number.and FIRM effective date.Map images for Feet :6 000 unmapped and unmodemized areas cannot be used for 0 250 500 1,000 1,500 2,000 regulatory purposes.
Sasemap Imagery Source:U5G5 National Map 2023
San Antonio Water District Headquarters1400 E.20`h Street, Upland-SBDCo. 24036-F/BMP
APPENDIX D
Field Infiltration Test Data
Porchet Method Calculation Summary
SSW A11,115r 2Fs,?024 i.
Conversion Table (Porchet Method)
San Antonio Water District Headquarters
400 E. 20th Street, Upland
Project No. 24036-BMP
Test lNTest Hole Depth Time initial Depth Final Depth Initial Water Height Final Water Height Change Height/Time Average Head Height/Time no. (inches) Interval (inches) (inches) (inches) (inches) II, AT D (in) D,(in) H,=dT-Do H:=DrDf ❑H/MD=Ha-Hi Havg=(H0+H4)/2 P-1 - 36 10 12 _ 35.5 _ 24 0.5 _ 23.5 12.25 P-2 60 10 36 56.5 24 3.5 20.5 13.75 _ P-3 Test at required depth could not be performed P-4 Test at required depth could not be performed Observed Infiltration Rate(It)=❑H6Or/Ot(r+2Havg) Legend A B C C1 HEAD= Observed Field Rate
❑H6Or At (r+2Ha„g) A/B=inch/hr Ha= inches of water filled from bottom P-1 5640 285 19.79 Do= initial height of water(inches)from bottom P-2 4920 315 25.62 Df= final heigh of water(inches)from bottom 'P-3 Columns A-B-C : Porchet Conversion Calculations P-4 Column C: Observed Rate following Porchet Conversion Dt= depth of test hole bottom (inches)
Percolation Test Data Sheet .
Project:5Aa Arno r i o (J.Plt2 Pic$1,44C.77 iiDM —WOO IProject No. 24036 Test Hole No: P-I Tested By: JC�- date: t0--4-2,4 • - Depth of Test Hole,D7 3 0 1.JSCS Soil Classification Test Hole Dimensions(inches) _Length Width
. Diameter(if round)= 8.0 in. 'Sides(if rectangular)= Sandy Soil Criteria Test*
At D. Df AD Greater Than
Time Initial Final Change In or Equal to Trial Interval Depth to Depth to Water 6.0 inches??? No. Start Time Stop Time (min) Water(in.) Water(In.) Level(in,) (Y/N) 1 /0 y,r !G:�r 25 /2 3(o 29 y
2 t7:.: js -SS 25 12 3( 2c1 'i
*If two consective measurements show that six inches of water seeps away inJess than 25 minutes,the test shall be run for an additional hour with measurements taken every 10 minutes. - Otherwise,pre-soak(fill)overnight.Obtain at least twelve measurements per hole over at least six hours(approximately 30 minute intervals)with a precision of at least 0.25." • At Do Df AD MAD
Time Initial Final Change in Percolation
Trial Interval Depth to Depth to Water Rate No. Start Time Stop Time (min) Water(€n_) Water(in.) Level(in.) - (min/In.) t0:5C' 1; :cCP ,'(:" 12 3 24 o.cf2. 2 ;! ;¢ail /1'! Iw' /2 35 2�. ].[f2 3 /Mg 1-1:8 ." /' eel aciZ
4 r!:24) . ii:39 A i2 34 . ZG a•q2 5 i :O ,,, /2 3-Cc 23.5- ay3
6 : !:z: 1 !.c /2_ 35.c 23.5 0.93 7 ;.2:e i 12 7/ /0 /2.- 35_ 5- 23.5 5 Q�'3 8 -
•
9 .
10 11
12 13
14 16
_17
v
18 Comments - --� �- u
r _ T Percolation Test Data Sheet
Project:5/14.1 Ai.110 4 O Orot2 —upuis,A0 Project No. 24036 Test Hole No: P-2- Tested 4: j C,-. Date: t j Z y Depth of Test Hole,❑r OD USCS Soil Classification Test Hole Dimensions(inches) Length Width
. Diameter(if round}= 8.0 in. Sides(if rectangular)- _ J
Sandy Soil Criteria Test*
At a Df AD Greater Than
Time Initial Final Change in or Equal to • Trial Interval Depth to Depth to Water 6.0 inches??? No. StartTime Stop Time (min) Water(in.) _Water(in.) Level(in,) (Y/N) 25 r. [ ti.
2 !r • r r• 25
*If two consective measurements show that six inches of water seeps away in.iess than 25 minutes,the test shall be run for an additional hour with measurements taken every,10 minutes. - • Otherwise,pre-soak Mill)overnight.Obtain at least twelve measurements per hole over at least six hours(approximately 30 minute intervals)with a precision of at least D.25." At D, Dp AD AT/AD
Time Initial Final Change in Percolation
Trial Interval Depth to Depth to Water Rate No. Start Time Stop Time (min) Water(iri.) Water(in.) Level(In.) • (min./In.) 1 �y;,:. I i , ; !� 0.44
2 fir.,. !/= ":3 / .��
3 : , a S :7 E, r.
4 .l2• azj / 3 s9 P.'•
5 �. • '+ . 'd - PO • 2C1, et, 20.57 C. 7 .- •n w air' ,•
8 9
10 •
11 12
13 14
15 16 •
17 18
Comments •
MOJAVE RIVER WATERSHED Water Quality Management Plan(WQMP) Form 4.3-3 Infiltration LID BMP - including underground BMPs (DA 1) Remaining LID DCV not met by site design BMP(ft3): V,„e,,=Farm 4.2-3 Item 1-Form 4.3-2 Item15
DA DMA
BMP Type Use columns to the right to compute runoff volume retention DA DMA DA DMA BMP Type from proposed infiltration BMP(select BMP from Table 5-4 in TGD for BMP Type SMP Type (Use additional forms WQMP)- Use additional forms for more BMPs far more BMPsJ 2 Infiltration rate of underlying soils(ln/hr)See Section 5.4.2 and Appendix C of the TGD for WQMP for minimum requirements for f ?7 t 5-,42- assessment methods
3 infiltration safety factor See TOO Section 5.4.2 and Appendix❑ •
4 Design percolation rate(in/hr) Pd,y„=item 2/Item 3
5 Ponded water drawdown time(hr)Copy item Gin Farm 4.2-1 6 Maximum ponding depth(ft) BMP specific,see Table 5.4 of the TGD • for WOMP for BMP design details
7 Pa n d i n g Depth(ft) dew.Minimum of(1/12.1tem 4•Item 5)or Item 6 8 Infiltrating surface area,SABmp(ft2}the lesser of the area needed for infiltration of full OCVor minimum space requirements from Table 5.7 of the TGD for WOMP
9 Amended soil depth,dmed7u(ft) Only included in certain BMP types, see Table 5-4 in the TGD for WQMP for reference to I3MP design details 10 Amended soil porosity
11 Gravel depth,dmedio(ft)Only Included in certain BMP types, see Table 5-4 of the TGD for WQMP for BMP design details
12 Gravel porosity
13 Duration of storm as basin is filling(hrs) Typical"'3hrs ,14 Above Ground Retention Volume(ft3) V r,,, =item 8"f1tem7+ (Item 9"Item 10)+(Item 31'item 12)4(Item 13"(Item 4/32))1 15 Underground Retention Volume(ft3) Volume determined using manufacturer's specifications and calculations
16 Total Retention Volume from LID Infiltration BMPs: (Sum of Items 14 and 15 far all Infiltration BMP included in plan) .17 Fraction of DCV achieved with infiltration IMP: % Retention; =Item 16/Form 4.2-1Item 7 18 Is full LID DCV retained onsite with combination of hydrologic source control and LID retention/infiltration BMPs?Yes❑ No❑ If yes,demonstrate conformance using Farm 4.3-10;If no,then reduce Item 3 Factor of Safety to 2.0 and increase Item 8,Infiltrating surface Area,such that the portion of the site ores used for retention and infiltration BMPs equals or exceeds the minimum effective area thresholds(Table 5.7 of the TOD for WQMP) for the applicable category of development and repeat ail above calculations. r
4-19
San Antonio Water District Headquarters/400 E.20"'Street, Upland-SBDCo. 24036-F/BMP
PROFESSIONAL LIMITATIONS
Our investigation was performed using the degree of care and skill ordinarily exercised, under similar circumstances by other reputable geotechnical engineers practicing in these general or similar localities.
No other warranty, expressed or implied, is made as to the conclusions and professional advice included in this report.
The investigations are based on soil samples only, consequently the recommendations provided shall be considered 'preliminary'. The samples taken and used for testing and the observations made are believed representative of site conditions; however, soil and geologic conditions can vary significantly between boring.As in most major projects, conditions revealed by excavations may vary with preliminary findings. If this occurs, the changed conditions must be evaluated by the project geotechnical engineer and designs adjusted as required or alternate design recommended.
The report is issued with the understanding that it is the responsibility of the owner,or of his representative, to ensure that the information and recommendations contained herein are brought to the attention of the project architect and engineers.Appropriate recommendations should be incorporated into structural plans.
The necessary steps should be taken to see that cut such recommendations in field.
The findings of this report are valid as of this present date. However, changes in the conditions of a property can occur with the passage of time, whether they due to natural process or the works of man on this or adjacent properties. In addition, changes in applicable or appropriate standards may occur from legislation or broadening of knowledge. Accordingly, the findings of this report may be invalidated wholly or partially by changes outside of our control. Therefore, this report is subject to review and should be updated after a period of one year.
RECOMMENDED SERVICES
The review of grading plans and specifications, field observations and testing by a geotechnical representative of this office is integral part of the conclusions and recommendations made in this report. If Soils Southwest, Inc. (SSW) is not retained for these services, the Client agrees to assume SSW's responsibility for any potential claims that may arise during and after construction or during the lifetime use of the structure and its appurtenant.
The recommendations supplied should be considered valid and applicable, provided the following conditions, at a minimum, are met:
Pre-grade meeting with the contractor, public agency, and the geotechnical engineer, ii. Excavated bottom inspections and verifications by the greotechnical engineer prior to backfill placement,
iii. Continuous observations and testing during site preparation and structural fill soils placement, iv. Observation and inspection of footing trenching prior to steel and concrete placement, v. Subgrade verifications including plumbing trench backfills prior to concrete slab-on-grade placement,
vi. On and off-site utility trench backfill testing and verifications, vii. Precise-grading plan review, and
viii. Consultations as required during construction or upon request.
In the event that the above conditions are not strictly fulfilled, Soils Southwest, Inc. will assume no responsibility for any structural distresses during the lifetime use of the development planned.
SSW August 28,2O 2•I
Lord Constructors/Inland kenworth;9730 Cherry Ave. Fontana-SBDCo. 24001-F/BMP
PROFESSIONAL LIMITATIONS
Our investigation was performed using the degree of care and skill ordinarily exercised, under similar circumstances by other reputable geotechnical engineers practicing in these general or similar localities.
No other warranty, expressed or implied, is made as to the conclusions and professional advice included in this report.
The investigations are based on soil samples only, consequently the recommendations provided shall be considered 'preliminary'. The samples taken and used for testing and the observations made are believed representative of site conditions; however, soil and geologic conditions can vary significantly between boring. As in most major projects, conditions revealed by excavations may vary with preliminary findings. If this occurs, the changed conditions must be evaluated by the project geotechnical engineer and designs adjusted as required or alternate design recommended.
The report is issued with the understanding that it is the responsibility of the owner, or of his representative, to ensure that the information and recommendations contained herein are brought to the attention of the project architect and engineers. Appropriate recommendations should be incorporated into structural plans.
The necessary steps should be taken to see that out such recommendations in field.
The findings of this report are valid as of this present date. However,changes in the conditions of a property can occur with the passage of time, whether they due to natural process or the works of man on this or adjacent properties. In addition, changes in applicable or appropriate standards may occur from legislation or broadening of knowledge. Accordingly, the findings of this report may be invalidated wholly or partially by changes outside of our control. Therefore, this report is subject to review and should be updated after a period of one year.
RECOMMENDED SERVICES
The review of grading plans and specifications, field observations and testing by a geotechnical representative of this office is integral part of the conclusions and recommendations made in this report. If Soils Southwest, Inc. (SSW) is not retained for these services, the Client agrees to assume SSVV's responsibility for any potential claims that may arise during and after construction or during the lifetime use of the structure and its appurtenant.
The recommendations supplied should be considered valid and applicable, provided the following conditions, at a minimum, are met:
Pre-grade meeting with the contractor, public agency, and the geotechnical engineer, ii. Excavated bottom inspections and verifications by the greotechnicai engineer prior to backfill placement,
iii. Continuous observations and testing during site preparation and structural fill soils placement, iv. Observation and inspection of footing trenching prior to steel and concrete placement, v. Subgrade verifications including plumbing trench backfills prior to concrete slab-on-grade placement,
vi. On and off-site utility trench backfill testing and verifications, vii. Precise-grading plan review, and
viii. Consultations as required during construction or upon request.
In the event that the above conditions are not strictly fulfilled, Soils Southwest, Inc. will assume no responsibility for any structural distresses during the lifetime use of the development planned.
February 19,2024
1 Stormwater BMP Design and Maintenance Manual Infiltration Facilities Infiltration Facility Operations and Maintenance
General Requirements
Infiltration facility maintenance should include frequent inspections to ensure that water infiltrates into the subsurface completely within the recommended infiltration time of 72 hours or less after a storm (see Appendix E for guidance on facility inspection and Appendix F for an infiltration inspection and maintenance checklist).
Maintenance and regular inspections are of primary importance if infiltration basins and trenches are to continue to function as originally designed. A specific maintenance plan shall be developed specific to each facility outlining the schedule and scope of maintenance operations, as well as the documentation and reporting requirements. The following are general maintenance requirements:
1. Regular inspection should determine if the sediment pretreatment structures require routine maintenance.
2. If water is noticed in the basin more than 72 hours after a major storm or in the observation well of the infiltration trench more than 48 hours after a major storm, the infiltration facility may be clogged. Maintenance activities triggered by a potentially clogged facility include:
• Check for debris/sediment accumulation, rake surface and remove sediment (if any) and evaluate potential sources of sediment and vegetative or other debris (e.g., embankment erosion, channel scour, overhanging trees, etc). If suspected upland sources are outside of the County's jurisdiction, additional pretreatment operations (e.g., trash racks, vegetated swales, etc.) may be necessary.
• For basins, removal of the top layer of native soil may be required to restore infiltrative capacity.
• For trenches, assess the condition of the top aggregate layer for sediment buildup and crusting. Remove top layer of pea gravel and replace. If slow draining conditions persist, entire trench may need to be excavated and replaced.
3. Any debris or algae growth located on top of the infiltration facility should be removed and disposed of properly.
4. Facilities should be inspected annually. Trash and debris should be removed as needed, but at least annually prior to the beginning of the wet season.
5. Site vegetation should be maintained as frequently as necessary to maintain the aesthetic appearance of the site, and as follows:
• Vegetation, large shrubs, or trees that limit access or interfere with basin operation should be pruned or removed.
6-14
8/23/2010
Stormwater BMP Design and Maintenance Manual Infiltration Facilities • Slope areas that have become bare should be revegetated and eroded areas should be regraded prior to being revegetated.
• Grass should be mowed to 4"-9" high and grass clippings should be removed. • Fallen leaves and debris from deciduous plant foliage should be raked and removed. • Invasive vegetation, such as Alligatorweed (Alternanthera philoxeroides), Halogeton (Halogeton glomeratus), Spotted Knapweed (Centaurea maculosa), Giant Reed (Arundo donax), Castor Bean (Ricinus communis), Perennial Pepperweed (Lepidium latifolium), and Yellow Starthistle (Centaurea so/stitalis) must be removed and replaced with non- invasive species. Invasive species should never contribute more than 25% of the vegetated area. For more information on invasive weeds, including biology and control of listed weeds, look at the"encycloweedia" located at the California Department of Food and Agriculture website at http://www.cdfa.ca.gov/wma or the California Invasive Plant Council website at http://portal.cal-ipc.org/weedlist . . • Dead vegetation should be removed if it exceeds 10% of area coverage. Vegetation should be replaced immediately to maintain cover density and control erosion where soils are exposed.
6. For infiltration basins, sediment buildup exceeding 50% of the forebay sediment storage capacity, as indicated by the steel markers, should be removed. Sediment from the remainder of the basin should be removed when 6 inches of sediment accumulates.
Sediments should be tested for toxic substance accumulation in compliance with current disposal requirements if visual or olfactory indications of pollution are noticed. If toxic substances are encountered at concentrations exceeding thresholds of Title 22, Section 66261 of the California Code of Regulations, the sediment must be disposed of in a hazardous waste landfill and the source of the contaminated sediments should be investigated and mitigated to the extent possible.
7. Following sediment removal activities, replanting and/or reseeding of vegetation may be required for reestablishment.
6-15
8/23/2010
Stormwater BMP Design and Maintenance Manual Infiltration Facilities Maintenance Standards
A summary of the routine and major maintenance activities recommended for infiltration facilities is shown in Table 6-1. Detailed routine and major maintenance standards are listed in Tables 6-2 and 6-3.
Table 6-1: Infiltration Facility Routine and Major Maintenance Quick Guide Inspection and Maintenance Activities Summary
• Remove trash and debris as required
• Repair and reseed erosion near inlet if necessary
2 • Remove any visual evidence of contamination from floatables such as oil and grease ILI • Clean under-drain (if present) and outlet piping to alleviate ponding and restore = infiltrative capacity.
X • Remove minor sediment accumulation, debris and obstructions near inlet and outlet au structures as needed
• Mow routinely to maintain ideal grass height and to suppress weeds oo • Periodically observe function under wet weather conditions • Take photographs before and after maintenance (encouraged) a)
U
to • Clean out under-drains if present to alleviate ponding. Replace media if ponding or loss of infiltrative capacity persists and revegetate
• • Repair structural damage to flow control structures including inlet, outlet and overflow structures
• De-thatch grass to remove accumulated sediment and aerate compacted areas to •� promote infiltration
X
6-16
8/23/2010
Stormwater BMP Design and Maintenance Manual Infiltration Facilities Table 6-2: Routine Maintenance — Infiltration Facilities Conditions When Results Expected When
Defect Maintenance Is Needed Maintenance Is Frequency Performed
Any trash and debris which
exceed 5 cubic feet per
1,000 square feet (one
standard garbage can). In
general, there should be no Trash and debris cleared Annually prior to Trash & Debris visual evidence of wet season. dumping. from site.
p g. After major storm
If less than threshold, all events (>0.75
trash and debris will be in/24 hrs) if spot
removed as part of next checks indicate
scheduled maintenance. widespread
Visible evidence of erosion Eroded areas damage/
Inlet Erosion occurring near inlet repaired/reseeded maintenance structures. needs.
Visual Any evidence of oil, Litter removal is Contaminants gasoline, contaminants or No contaminants or dependent on site and Pollution other pollutants. pollutants present. conditions and Standing water long after Water drains within 48 to 72 desired aesthetics storm has passed (after 48 hours. Drainage pipe is and should be to 72 hours), or visual cleared, accumulated litter on done at a Slow Drain Time inspection of wells (if frequency to meet available indicates that surface is removed, and top
1-2"of soil is raked or those objectives.
design drain times are not replaced.
being achieved.
Trash and debris or Inlets clear and free of trash Inlets Blocked sediment blocking inlet
structures. and debris.
Appearance of Excessive grass and weed Vegetation is mowed or Monthly (or as Poisonous, growth. Noxious weeds, trimmed to restore function. dictated by Noxious or woody vegetation Weeds are removed to agreement Nuisance establishing, Turf growing prevent noxious and nuisance between County Vegetation over rock filter. plants from becoming and landscape established. contractor).
6-17
8/23/2010
Stormwater BMP Design and Maintenance Manual Infiltration Facilities Table 6-3: Major Maintenance — Infiltration Facilities
Conditions When Results Expected When
Defect Maintenance Is Needed Maintenance Is Performed Frequency Standing water long after Design infiltration rate storm has passed (after 24 restored, either through to 48 hours), or visual excavation and filter media As needed Standing Water inspection of wells (if replacement or surface available) indicates that sediment removal. If
design drain times are not applicable, underdrain
being achieved cleaned, reset or replaced.
6-18
8/23/2010
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7'�ie effects of pollution o`
h
"?Nat is stor�rnwatev� runoff? -� ` :4.
Polluted stormwater runoff can have
many adverse effects on plants,fish,
• • Stormwater runoff occurs when precipitation animals,and people. s - - from rain or snowmelt flows over the ground. • Sediment can cloud the water Impervious surfaces like driveways,sidewalks, and make it difficult or •� ` and streets prevent stormwater from impossible for aquatic plants to naturally soaking into the ground. grow.Sediment also can •
destroy aquatic habitats.
• Excess nutrients can cause
• algae blooms.When algae die,
they sink to the bottom and decompose 4}
906:y Is stormwater runoff f in a process that removes oxygen from " � the water.Fish and other aquatic
a ro6fern? organisms can't exist in water with low 7-1 �✓ dissolved oxygen levels.
Nc•It- . 1
• Bacteria and other pathogens can wash *}
into swimming areas and create health
hazards,often making beach closures '
necessary
• Debris—plastic bags,six-pack rings,bottles,and 5 cigarette butts—washed into waterbodies can choke,suffocate,or disable aquatic life like ducks,fish,turtles,and birds. •Household hazardous wastes like insecticides,pesticides,paint, solvents,used motor oil,and other aut111111
o fluids can poison aquatic life.
} • Land animals and people can become sick or die from eating diseased ;r' fish and shellfish or ingesting polluted water.
Stormwater can pick up debris,chemicals,dirt,and other • Polluted stormwater often pollutants and flow into a storm sewer system or directly to — — — affects drinking water sources.This,in turn,can
a lake,stream,river,wetland,or coastal water.Anything that affect human health and l—r-Egal
enters a storm sewer system is discharged untreated into " �' increase drinking water the waterbodies we use for swimming,fishing,and providing treatment costs. drinking water. - •
. .,
•
_ 4'.. Page 998 of 1374
Stormwater Pollution Solutions/ M1. .
,,:,NI,IN lT
___.. _
J� f / -
esiGtentiad Auto care
.. ;; Washing your car and Illreit
_ degreasing auto parts at homeEdueatux 1l eA urtedt'cAastgiatg peop&e bebaarow. -.N.M. "' r, , r-: � • . can send detergents and other Srghe card aow/dceut KmLtotaw ebtaiai luautedideat contaminants through the ti &cat politt&A pare the ctraiad wilt be wetted storm sewer system.Dumping � ,
R �e automotive fluids into storm - tuitneatid Bat'a wal'thody. p'iap 1 p p drains has the same result as
eocttca t eheadeaA due%a.i us pp iA petteidei, paid dumping the materials directly into a waterbody.4o u,q-J, and ad awl,oil and on aura>�' Use a commercial car wash that treats or RaG� {�_ - Dow tpotut these oat'lice road at ix 'dtYrat dtaiad. recycles its wastewater,or wash your car on Permeable Pavement—Traditional concrete and your yard so the water infiltrates into the asphalt don't allow water to soak into the ground. ground. Instead these surfaces rely on storm drains to Lawn care I •Repair leaks and dispose of used auto fluids divert unwanted water.Permeable pavement Excess fertilizersI and batteries at designated drop-off or systems allow rain and snowmelt to soak through, and pesticides recycling locations. decreasing stormwater unoff. applied to lawnsiii Rain Barrels—You can
and gardens wash collect rainwater from
off and pollute Septic _ Pet waste S rooftops in mosquito- streams.In `•3. -
addition,yard • systems - Pet waste can be 4 proof containers.The water can be used later on
clippings and Leaking and a major source of ' ' - _ lawn or garden areas. leaves can wash poorly r bacteria and M into storm drains and contribute _ excess nutrients ~ . maintained 4i • Rain Gardens and
nutrients and organic matter to streams. septic -` in local waters. Grassy Swales—Specially systems release nutrients and •When walkin • designed areas planted • Don't overwater your lawn.Considerg
using a soaker hose instead of a pathogens(bacteria and your pet, with native plants can provide natural places for viruses)that can be picked up remember topick upthe rainwater to collect sprinkler. by stormwater and discharged
into nearbywaterbodies. waste and disposeg off it and snook inton the •Use pesticides and fertilizers properly.Flushing pet ground.Rain from sparingly.When use is necessary,use Pathogens can cause public waste is the best disposal rooftop areas or paved these chemicals in the recommended health problems and method.Leaving pet waste areas can be diverted amounts.Use organic mulch or safer environmental concerns. on the ground increases into these areas rather pest control methods whenever • Inspect your system every public health risks by than into storm drains. possible. 3 years and pump your allowing harmful bacteria • Compost or mulch yard waste.Don't tank as necessary(every 3 and nutrients to wash into Vegetated Filter Strips—Filter strips are areas of leave it in the street or sweep it into to 5 years). the storm drain and native grass or plants created along roadways or storm drains or streams. •
eventually into local streams.They trap the pollutants stormwater • Don't dispose of waterbodies. picks up as it flows across driveways and streets. • Cover piles of dirt or mulch being household hazardous used in landscaping projects. waste in sinks or toilets.
Dirt,oil,and debris that collect in Erosion controls that aren't maintained can cause i r I ' i 4, P. parking lots and paved areas can be excessive amounts of sediment and debris to be 1.' 1 _ _- washed into the storm sewer system carried into the stormwater system.Construction .. i. 'j t. :•' I and eventually enter local vehicles can leak fuel,oil,and other harmful fluids h Y 'ktJ,' •
waterbodies. that can be picked up by stormwater and r" t',I •2t - ?...,y deposited into local waterbodies. ~h , ' ', -&'ter•• •Sweep up litter and debris from -a-
sidewalks,driveways and parking lots, •Divert stormwater away from disturbed or •'-'�' '?r k' -+}+I Commercial especially around storm drains. exposed areas of the construction site. Y f ;� •Cover grease storage and dumpsters •Install silt fences,vehicle mud removal areas, I ':;- I s7 and keep them clean to avoid leaks. vegetative cover,and other sediment and a.
erosion controls and properly maintain them, - 'r' •Report any chemical spill to the local especially after rainstorms. I -' hazardous waste cleanup team.
They'll know the best way to keep •Prevent soil erosion by minimizing disturbed i . spills from harming the environment. areas during construction projects,and seed and mulch bare areas as soon as possible. Construction �/� Lack of vegetation on streambanks can lead to erosion.Overgrazed pastures can also l yrieu Lure contribute excessive amounts of sediment to local waterbodies.Excess fertilizers and Automotive pesticides can poison aquatic animals and lead to destructive algae blooms.Livestock in aC- es a streams can contaminate waterways with bacteria,making them unsafe for human contact. - r
- •Keep livestock away from streambanks and provide 4�' them a water source away from waterbodies. _ # R •_. •Store and apply manure away from waterbodies and in - - - accordance with a nutrient management plan. I' •
.1- l
•Vegetate riparian areas along waterways. _ r . r •Rotate animal grazing to prevent soil erosion in fields. ;:— - • •Apply fertilizers and pesticides according to label • --" G - instructions to save money and minimize pollution. a Uncovered fueling stations allow spills to be washed into storm drains.Cars waiting to be
d repaired can leak fuel,oil,and other harmful f' t. Improperly managed logging operations can result in erosion and fluids that can be picked up by stormwater. �` „tf '`' sedimentation.
4-_ 7t •Clean up spills immediately and properly '' •Conduct preharvest planning to prevent erosion and lower costs. dispose of cleanup materials. -,F• •Use logging methods and equipment that minimize soil disturbance. •Provide cover over fueling stations and 1• I r design or retrofit facilities for spill •Plan and design skid trails,yard areas,and truck access roads to containment. r minimize stream crossings and avoid disturbing the forest floor. . _- • ��-
- •Properly maintain fleet vehicles to prevent - _ try,i •Construct stream crossings so that they minimize erosion and physical oil,gas,and other discharges from being changes to streams. i2 999 of 1 374
,-• _ washed into local eat odies.
x ., T� •Expedite revegetation of cleared areas. •Install and maintain of/wa separators.
i• i• !;: i;' i �. CREATE A HF-IF -lY EIWIRONvIENT in and around your home by following these simple pet lit ' �. is • is : is practices. Your pet,family and neighbors will appreciate their clean comfortable surroundings.
RIVERSIDEC can cause disease in other anilr,ais andt ANIMAL somas LOCATIONS: HOUSEHOLD PETS
hi mans that come in contact with i
00 www.rcdasr ! We all love our pets but pet waste is a when swimming or splashing in streams Illr BLYTHE subject everyone likes to avoid. Pet waste and lakes. Dogs also carry salmonella Yb4Blythe,CA 16450 West Aob2s22 Way , left on trails, sidewalks, streets and grassy and giardia,which can make people sick.
B
761}-921-7557 7 r I;ir a areas can be washed into the nearest Pet waste that is not picked up and COACHELLA VALLEY ANIMAL CAMPUS .7 waterway when it rains. Even if you can't properly disposed can also increase vector
72-050 Petland Place 411. ' � see streams or lakes insectsTh �5and Palms,CA 760 343 3644 92276 ' near you rainfall only attracted to anproblems. Flies and d other an pet waste,
(stormwater) or
RIVERSIDE COUNTY ANIMAL SERVICES p 1 but can also be infected with diseases 6851 Van Buren Blvd. sprinkler runoff
and spread those diseases to humans and
ir ‘11
Riverside,CA340 O can wash pet �R�R,;*•7{..• -- crthe is 951 6$s 43aa waste into the ----
OTHER ANIMALLTIgs; �� rD storm drains that a- ANIMAL CARE cE1aTER or rNnta • /�] carry runoff to �on \�.
WHAT CAN YOU DO?
45-355 Van Buren �+ IS . 0 the nearest a r e s t Indio.CA 92201 e? LJ p �` SCOOP up pet waste and flush it down 760-391-4138 streams or lakes untreated. the toilet or place in trash can 111100
ANIMAL FRIENDS OF THE VALLEYS .► The risk of stormwater •
29❑O1 Btr asop Avenue contamination increases 1 NEVER DUMP pet waste into a storm Lake Elsinore.CA 92530 drain or catch basin. n�
951-674-0618 k if pet waste is allowed
-1)
[Serving incorporated Temecula Wildornar.
Lake Elsinore,Mturieta and Canyon Lake) to accumulate in USE the complimentary bags or mutt luIARY S.ROBERTS PET A>7olfrloN CENTER - �►nl�1>n outdoor animal pen mitts offered in dispensers at local parks. 6185 Industrial Avenue areas or left on • CARRY EXTRA SAGS when walking Riverside,CA 92504 sidewalks, streets
jil
951-68E-4340 your dog and make them avable to Tis �� or driveways.
RAMONA HUMANE SOCIETY other pet owners who are withouailt 690 Humane Way Pet waste contains San g CHILDREN how to ❑ 1 1-65 •
,p,�4p 925$6 _+ � nutrients and bacteria. Nutrients Can 95 -$OO2y
Y clean up after a pet
(Serving Sun City,Menifee,Romoland and Homeland) promote the growth of algae in streams Looking to adopt a pet? and lakes. Algae can cause fish kills and • TELL FRIENDS AND NE1GI-IBORS about This website is linked to many animal shelters. Mr) *�n other environmental damage if it is the ill effects of animal waste on the wm wgttfinder-•coro r7+L V i) A
fed too many nutrients. Pet Waste also environment. Encourage them to clean To report illegal storm drain disposal call HEAVIER contains e. Coll and fecal bacteria, which up after pets. 1-Boo-5Os-25e5
Or visit our website at wow rA ci.org Call l-Sd0-S06-25S5 TOLL FREE EE to report illegal dumping to the storm drain,find the dates and times of EminzoNmENT local Household Hazardous Waste Collection Events, obtain additional information on stormwater E-mail fcnpdes_ercflond,org problems and solutions,request presentations about storrnwater pollution in your child's classroom,or learn about free grasscycling and composting-workshops.
is r;: f: % 6) 6) 6) % ►) is is % % % is % 6) is 6: % 6) % r;:
►: f: �: �: s;: is �: f: �: r;: �: s,: is r;: r;: ►:: ►: is F: �: �: is SCOOP THE POOP i, such as these. You can also keep your • BUILD a manure storage facility to • MATERIAL STORAGE SAFETY TIPS pets and our environment healthy by protect your pets, property and the Many of the chemicals found in Many communities have � properly maintaining your vehicles, and environment. These structures barns require careful handling and "Scoop the Poop"laws J \ limiting use of pesticides and fertilizers usually consist of a concrete pad to proper disposal. When using these that govern pet ;l_j to only the amount that is absolutely protect groundwater and a short chemicals,be certain to follow these waste cleanup. �" needed wall on one or two sides to make common sense guidelines:
Some of ""t i Make sure to not only protect your pets manure handling easier. ♦ Buy only what you need. these laws -
s- but to also protect your neighbors pets.
specifically i Treat spills of hoof oils like a NEVER HOSE VEHICLE FLUIDS into REAPthe Only Rain Down the require `` fuel spill. Use kittylitter to soak the street or gutter. USE ABSORBENT' storm Drain brochure titled "Tips anyone who walks an animal off their for Horse Care" for additional up the oil and dispose of it in a property to carry a bag, shovel, or MATERIALS such as cat litter to tightly sealed plastic bag. clean-up spills. SWEEP UP used guidance and recommendations.This scooper. Any waste left by the animal absorbent materials and place it in the brochure should be available from • Store pesticides in a locked, dry, must be cleaned up immediately. CALL
YOUR LOCAL CODE ENFORCEMENT trashyour local city office or for download well-ventilated area. at www.rcflood.org/stormwater .
OFFICE to find out more about pet HORSES AND LIVESTOCK ♦ Protect stored fertilizer and waste regulations pesticides from rain and surface • KEEP animals out of streams -
Fortunate enough to own a horse or water.
OTHER WAYS TO PROTECT livestock? You, too, can play a part in Horses and livestock can delicate in YOUR PETS AND THE protecting and cleaning up our water streams causing stormwater RESOURCE CONSERVATION resources. The following are a few Pollution Livestock and horses inDISTRICTS CAN HELP ENVIRONMENT streams can also disturb sensitive simple Best Management Practices
Pets are only one of many sources that (BM Ps) specifically designed for horses habitat and vegetation causing Call 1 $OQ-SQ6-2555 for assistance and livestock
additional environmental damage. with locating a local conservation contribute to water pollution. However, Keep livestock and horses away from district that can help you properly these other sources of water pollution 0 STORE your manure properly. Do streams and use designated stream manage your manure, re-establish cannot only harm the environment but not store unprotected piles of crossings whenever possible. healthy pastures, control weeds, or also harm your pet Improperly used manure in places where stormwater identify appropriate grasses for your or stored lawn fertilizers, pesticides, runoff may wash the soils. 0ti`1 soaps, grease and vehicle fluids cannot manure away. Place . " only be washed into local streams and a cover or J Thank you for 4_ ' .
lakes, these chemicals can also harm
tarp over ,' 7 doingyour part '1 . your pet if they ingest or touch these the pile : .. to protect your >+:
chemicals. Call 1- 'OO-50b-255S for to keepSic ��' �� watershed y , ' the
information regarding how to properly rainwater .. '' � environment your } '' dispose of household hazardous wastes out. 1111 it- a pets and your community.
a� ...Only Rain Down
J
i ...the Storm Drain
',,�� . :
andscaping and garden In Riverside County, report illegal discharges What you should know f or...
Id
into the storm drain, call Landscape and Gardening
maintenance activities I-800-506-2555
"Only Rain Down the Storm Drain"
can be major contributors to Best Management tips for:
Important Links: • Professionals
water pollution. Soils, yard • Novices ax,k 'Y • ' Ftil
Riverside County Household Hazardous
Waste Collection Information • Landscapers z
wastes, over-watering and
1-800-304-2226 or www.rivcowm.org
■ Gardeners
garden chemicals become Riverside County Backyard • Cultivators E"s TOW- Composting Program
part of the urban runoff mix 1-800-366-SAVE
r
that winds its Wa through integrated Pest Management (IPM)Solutions y g www.ipm.ucdavis.edu s►
.1Tir
' \ kilt.
streets, gutters and storm California Master Gardener Programs • iir --- svw w mastergardeners.org
drains before entering lakes, www.camastergardeners.ucdavis.edu r i Urban California Native Plant Society g ;;w rivers, streams, etc. - __ .,
www.cnps.org - . ;' • -
runoff pollution contami- R ,. -
The Riverside County"Only Rain Down the Storm Drain" °•'tl� `:� • _.v*..' :' tI • °ram i r••.-• Pollution Prevention Program gratefully acknowledges ! —. - _ Orange County's Storm Water Program for their •- ' \ .` , Hates water and harms !
contribution to this brochure. i I It (' `.:+�� - . - :
O 4' R s
aquatic life!
. -- -. , 1 ;:.;. Page 1002 of 1374
Tips for Landscape & Gardening
This brochure will help you to get the most • Do not rake or blow leaves, clippings or • Try natural long-term common sense of your lawn and gardening efforts and keep our pruning waste into the street, gutter or storm solutions first. Integrated Pest Managemenr waterways clean. Clean waterways provide drain. Instead, - .,�, : M]1 - ,1P can provide landscaping guidance and recreation, establish thriving fish habitats, secure dispose of green - solutions, such as:
safe sanctuaries for wildlife, and add beauty to waste by corn- _- • Physical Controls - Tryhand picking, our communities. NEVER allow gardening posting,hauling �� og � ,. 6 barriers, traps or caulking holes to products or waste water to enter the street, it to a per- ; x' _t, ; , �: ���� control weeds and pests.
gutter or storm drain. mitred landfill, ' i -t. _.., or recycling it V' . " -r'` - • Biological Controls - Use predatory •
General Landscaping Tips through your t insects to control harmful pests. city's program. • Chemical Controls - Check out • Protect stockpiles and materials from wind www.ipm.ucdavis.edu before using and rain by storing them under tarps or • Consider recycling your green waste and chemicals. Remember, all chemicals secured plastic sheeting. adding "nature's own fertilizer" to your lawn should be used cautiously and in • Prevent erosion of - • :,
or garden. moderation.
slopes by planting fast- '
• Read labels and use onlyas directed. Do not • If fertilizer is spilled, sweep up the spill before growing, dense ground t ' irrigating. If the spill is liquid, apply an covering plants. These : :�: over-apply pesticides or fertilizers. Apply to b will shield and bind the 4' absorbent material such as cat litter,and then spots as needed, rather than blanketing an
soil. entire area. sweep it up and dispose of it in the trash. �.. -' L::
•
• Plant native vegetation -- Store pesticides, fertilizers and other • Take unwanted pesticides to a Household `' "r'
Waste Collection Center to be recycled.
to reduce the amount
chemicals in a dry covered area to prevent
of water, fertilizers and a- '•'
�- exposure that may result in the deterioration r Dumping toxics into the street,gutter or pesticides applied to ' ' . of containers and packaging. . , storm drain is illegal!
the landscape.
• Never apply pesticides or fertilizers when rain Rinse empty pesticide containers and re-use rinse water as you would use the product.
is predicted within the next 48 hours. www.bewaterwise.com Great water Do not dump rinse water down storm drains conservation tips and drought tolerant or sewers. Dispose of empty containers un garden designs.
Garden & Lawn Maintenance the trash. g g • Do not overwater. Use irrigation practices www.ourwaterourworld.com Learn how to such as drip irrigation, soaker hoses or micro- • When available,use non-toxic alternatives to safely manage home and garden pests. spray systems. Periodically inspect and fix traditional pesticides, and use pesticides leaks and misdirected sprinklers. specifically designed to control the pest you Additional information::- _::_ 0::0n are targeting. the back of this broth Page 1003 of 1374
Helpful telephone numbers and links: Stormwater Pollution Do you know where street flows actually go? Riverside County Stormwater Protection Fanners Storm drains are NOT connected to sanitary sewer systems and Flood Control District (951)955-1200 What you should know for...
County of Riverside (95I)955-1000 treatment plants! Ciry of Banning (950 922-3105
City ofCe imesa (951)9 769-8520 Outdoor Cleaning City of Calimesa (909)795-980i
City of Canyon Lake (951)244-2955 Activities and ONLY RAIN (IN THE DRAIN Cathedral City (760)770-0327
City of 760)
City ofCoronalla (951)736.24477 Professional Mobile City of Desert Hot Springs (760)329-6411Service Providers City of Eastvale (9511)361-0900
1.0900 00 he primary purpose of storm drains is to carry rain water away from developed areas City of Hemet (951)765-2300 to prevent flooding. Pollutants discharged to storm drains are transported directly City of Indian Wells {760}346-2489 into rivers,lakes and streams. Soaps,degreasers,automotive fluids,litter and a host of City of Indio (760)391-4000
City of Lake Elsinore (951)674-3124 materials are washed off buildings, sidewalks, plazas and parking areas. Vehicles and City of La Quints (760)777-7000 equipment must be properly managed to prevent the pollution of local waterways.
City of Menifee (95 l)672-6777
City of Moreno Valley (951)413-3000 Unintentional spills by mobile service operators can flow into storm drains and pollute City of Murrieta (951)304-2489 Ciry of Rlorco (95 i)270-5607jr6) our waterways. Avoid mishaps. Always have a Spill Response Kit onhand to clean up City of Palm Desert (760)346-0611 unintentional spills. Only emergency Mechanical repairs should be done in City streets, City of Palm Springs (760)323-8299
City of Perris (951)943-6100 r` using drip pans for spills. Plumbing should be done on private property. Always store City of Rancho Mirage (760)324-4511 C A 1 1 chemicals in a leak-proof container and keep covered when not in use. Window/Power City of Riverside (951)361-0900733 j_ Washing waste water shouldn't be released into the streets,but should be disposed of in City of San Jacinto {95l)654 733'r
City of Temecula (951)694-6444 - a sanitary sewer, landscaped area or in the soil. Soiled Carpet Cleaning wash water City of Wildomar (951)677-7751 should be filtered before being discharged into the sanitary sewer. Dispose of all filter REPORT ILLEGAL STORM DRAIN DISPOSAL debris properly. Car Washing/Detailing operators should wash cars on private property 1-1300-506.2555 or a-mail us at Storm drain pollution prevention and use a regulated hose nozzle for water flow control and runoff Fe npdegOreflood ar> prevention. Capture and dispose of waste water and chemicals properly. information for: � � p p Y
• Riverside County Flood Control and Water Remember,storm drains are for receiving rainwater runoff only. i Conservation District
w.wwrcflood.org • Car Washing/Mobile Detailers A Online resources
include: REPORT ILLEGAL �,
• Window and Carpet Cleaners �� � �
• California Storm Water Quaky Association
a-org r Power Washers STORM DRAIN _' �', ;'#!'1;�►f • State Water Resources Control Board Waterpraofers 1 Street Sweepers DISPOSAL / ISIII.�`It C y 51 a •,lk ww5rwaterbOards.ca reov _ �_� di • ., • Power Washers of North America • Equipment cleaners or degreasers www.thewtra.ore and all mobile service providers 1-800-506-2555 . 1111=
Help Protect Our Waterways !
Use these guidelines for Outdoor Cleaning Activities and Wash Water Disposal Did you know that disposing of DO„.obtain the property owner's permission to Using Cleaning Agents Screening Wash Water pollutants into the street, gutter, dispose of small amounts of power washing waste storm drain orof water is water on to landscaped, gravel or unpaved Conduct thorough dry cleanup before washing body Pe P Try using biodegradable/phosphate free products, exterior surfaces, such as buildings and decks PROHIBITED by law and can result surfaces. They are easier on the environment, but don't with loose paint,sidewalks or plaza areas. Keep in stiff penalties? confuse them with being toxic free. Soapy water debris from entering the storm drain after DO...check your local sanitary sewer agency's entering the storm drain system can impact the cleaning by first passing the wash water through Best Management Practices policies on wash water disposal regulations before delicate aquatic environment. a "20 mesh" or finer screen to catch the solid disposing of wash water into the sewer. (See list materials, then dispose of the mesh in a refuse Waste wash water from Mechanics, Plumbers, on reverse side) container. Do not let the remaining wash water Window/Power Washers, Carpet Cleaners, Car enter a street,gutter or storm drain.
Washing and Mobile Detailing activities may DO...be aware that if discharging to landscape 7115T_� contain significant quantities of motor oil,grease, areas,soapy wash water may damage landscaping. ,:ip Drainr nret Protection chemicals,dirt,detergents,brake pad dust, litter Residual wash water may remain on paved +.trt� Collection of Wash Water and other materials. surfaces to evaporate. Sweep up solid residuals Prior to any washing,block all storm drains
and dispose of properly. Vacuum booms are
Best Management Practices,or BMPs as they are another option for capturing and collecting wash with an impervious barrier such as sandbags known, are guides to prevent pollutants from water or berms,or seal the storm drain with plugs , or other appropriate materials.
entering the storm drains. Each of us can do our �+ part to keep stormw•ater dean by using the DO...check to see if local ordinances prevent A if ' Create a containment area with berms and su tea BMPs below: m.•• -' traps or take advantage of a low spot to keep certain activities.
z4 l t�^ wash water contained.
Simple solutions for both �+ ' Wash vehicles and equipment on grassy or p Do not let...wash or waste water from i I. gravel areas so that the wash water can seep light and heavy duty jobs: sidewalk, plaza or building cleaning go into a into the ground. street or storm drain. When cleaning surfaces with a high-pressure . Pump or vacuum up all wash water in the DO...consider dry cleaning methods first such was or steam cleaner, additional precautions contained area. as a mop,broom,rag or wire brush. Always keep LY R should be taken to prevent the discharge of O� '�/+ pollutants into the storm drain system. These Concrete/Coring/Saw Cutting a spill response kit on site. two methods of surface cleaning can loosen O `��F additional material that can contaminate local and Drilling Projects DO...prepare the work area before power R
cleaning by using sand bags,rubber mats,vacuum itif'1011P�_ Q waterways. Protect any down•gradient inlets by using dry booms,containment pads or temporary berms to �Q Cr
activity techniques whenever possible.If water is
keep wash water away from the gutters and storm Think Water Conservation used,minimize the amount of water used during drains the coring/drilling or saw cutting process.Place a barrier of sandbags and/or absorbent beans to
Minimize water use by using high pressure, low protect the storm drain inlet or watercourse.Use a DO...use vacuums or other machines to Report illegal storm drain disposal volume nozzles. Be sure to check all hoses for shovel or wet vacuum to remove the residue from remove and collect loose debris or litter before Call Toll Free leaks.Water is a precious resource,don't let it flow the pavement.Do not wash residue or particulate applying water. 1-800-5 0b-255 5 freely and be sure to shut it off in between uses. matter into a storm drain inlet or watercourse.
Saltwater Pools Helpiul telephone numbers and links Guidelines for
• Salt water pools, although different from regular RIVERSIDE COUNTY WATER AGENCIES: Maintaining your... pools,are in fact,sanitized using chlorine.A salt- oty of Fanning (951)922.3130 chlorine generator separates the chlorine and Catyof Beaumont/Cherry Valley (951)845.9581 City of Blythe (760)922-6161
sodium molecules in salt and reintroduces themy of Coachella (760)398.3502 into the pool water. The same harmful effects of City of Hemel (951)736-371+0 City of Pleats[ (951)765.37 W
chlorine still apply. City of Norco (951)270 5607 City of Riverside Public Works (951)351.6140
• A salt water pool is still maintained with City of San Jacinto (951)654-4041 Coachella Valley Water District (760)398-2651
chemicals such as Muriatic acid, soda ash and Desert Water Agency (Pala Springs) (760)323.4971 sodium carbonate to help keep a proper pH,total Eastern Municipal Water District........ (95!)928-3777 Elsinore Valley Municipal Water District (951)674 3146 Alkalinity, Calcium Hardness and Stabilizer Elsinore Water District (95!)674-2168 levels. Farm Mutual Water Company (951)244-4198 Idyll wild Water District (951)659-2143��At/ Indio Water Authority (760)391-4129 Jurupa Crrmmniry Services District (951)685-7434
HMV tee 1ake Water (951)658-3241
(4111)
IMission Springs Water (760)329 6448
Rancho Califotna Water District (951)296.6900 IF11114 � � `w Ripley,CSA#62 (760)922-4951 `� Riverside Co.Service Area#51 (760)227.3203 •��' �n\ Rsihidoux Community Services District (95 I)684-7580 �� mit M Valley Sanitary District (760)347-2356 hl ..� 47 Western Municipal Water District (951)789-5000 L ! Yucaipa Valley Water District (909)797-5117 ,rr �` �I��t CALL 1-800-506-2555 to:
• Report clogged atom[drains or illegal storm drain disposal from residential, • ■ ■II■a■■■■■■r■■■■■■■■■■■■tr a r■r■■■ • It may be illegal to discharge salt water to land. in:l' construction and commercial shin into public stets,storm dram The salt may kill plants and the build-up of salt in about our various storm drainpollution prevention materials_ n soil puts animals,plants,and groundwater at risk. • Locate the daces and mites of Household Hazardous Waste awl Consultyour cityrepresentatives to determine • Collection Events_ t
p Request adult,neighborhood,or classroom presenotdons. local requirements regarding salt water drainage. • Locale other Coon ty environmental services. r y • Receive gtasttycling information and composting workshop information Or visit our
NEVER put unused chemicals Into the Riverside County Flood Control and Water Conservation District webeite at:ww .rG R4.&SEg
trash, onto the ground or down a other links to additional storm drain pollution information —
• County of Riverside Environmental Health: www.rivcoeh.org stormdrain. • State Water Reanracrx Crattrvl Board: wwwwaterboards.ca govv • California starmwater Quality Assocbtiorc www ca sga.orQ • United States Environmental Protection Agency(EPA):
wwwtera.ersv/complianceiassistance (compliance assistance information) IMPORTANT: The discharge of pollutants into Swimming Pool, the street,gutter, storm drain system or waterways - o�'�"Y• Rq•�
without a permit or waiver-is strictly prohibited by Jacuzzi and local ordinances, state and federal law. Violations A. a
may result in monetary fines and enforcement '3tE• .' actions. Garden Fou Riw rdde Corms.YMiy[fain Dawn the storm Drain Pri lemon Acwuirn?roar parciay ' wiertheethiral the 5sy stgnn r�i,., ,r Ay�ta �dY .`.ge 06 of 1374 Ethdprrthra A .9.:-.(gr tTifinmagran p,irled in dd tmdu6c.
Where does the water go? Discharge Maintenance a Regulations Chemicals
• i : i Regulatory requirements for discharging wastewater Cleaning Filters !m1iI ' • from your pod may differ from city to city.Chlorinated I�� 1r
water should not be discharged into the street,storm Filter rinse water and backwash must be �� discharged to the sanitary sewer,on-site Ha—
i j IN �" drain or surface waters.Check with your water agency i _. to see if disposal to the sanitary sewer line is allowed for septic tank and drain field system (if IIIpool discharges (see reverse for Riverside County properly designed and adequately sized), Pool,Jacuzzi and Fountain wastewater and rain water sewer agencies). or a seepage pit. Alternatively, rinse
water or backwash may be diverted to landscaped or
runoff(also called stormwater) that reach streets can If allowed,a hose can be run from the pool Jacuzzi,or dirt areas.Filter media and other non-hazardous solids enter the storm drain and be conveyed directly into fountain to the private sewer cleanout, washing should be picked up and disposed of in the trash. local streams,rivers and lakes. machine drain or a sink or bathtub.
Algaecides
II -.., ti.lif` Avoid using copper-based algaecides unless absolutely �- - —,—-� 41k_, ' �+i i necessary. Control algae with chlorine, organic to .t
` _ - y �,+'r, +� ■ ■ r■■■■■r■■■■■x s■_■x■■■■■■r x■x■■■■ polymers or other alternatives to copper-based pool Q chemicals. Copper is a heavy metal that can be toxic to aquatic life when you drain your pool.
A storm drain's purpose is to prevent flooding by
carrying rain water away from developed areas. Storm ► ii , • Chemical Storage and Handling drains are not connected to sanitary sewers systems - ���-. and treatment plants! • Use only the amount indicated on product labels Wastewater,from residential swimming pools,Jacuzzis, • Store chlorine and other chemicals in a covered fishponds and fountains, often contains chemicals area to prevent runoff. Keep out of reach of used for sanitizing or cleansing purposes. Toxic children and pets. chemicals (such as chlorine or copper-based If you cannot discharge to the sewer you may drainswimming pool algaecides) may pollute the environment when • equipment Iand supply stores, should be sed to discharged into astorm drain stem. your fountain, pool,or jacuzzi to your landscaping bysupply system.
following these guidelines: monitor the chlorine and pH Ievels before The Cities and County of Riverside have adopted draining your pool• ordinances thatprohibit the discharge of wastewater First, reduce or eliminate solids (e.g. debris,leaves or g dirt) in the pool water and allow the chemicals in the • Chlorine and other pool chemicals should never
to the street and storm drain system. pal water to dissipate before draining the pool (this be allowed to flow into the gutter or storm drain could take up to 7 days,verify using a home pool test system. kit). Take unwanted chemicals to a Househal• Second, slowly drain to a landscaped area away from Hazardous Waste (HEW) Collection buildings or structures. Control the flow to prevent Event. There's no cost for taking soil erosion;it may take more than one day to empty. HHW items to collection events — of Do not allow sediment to enter the street, gutter or it /'s FREE! Call l.-S00-506i-2555 storm drain. for a schedule of HHW event, ;r . 1111111. your community.
Stormwater Pollution
Found in Your Area!
This is not a citation.
This is to inform you that our staff found
the following pollutants in the storm
sewer system in your area. This storm
sewer system leads directly to
❑ Motor oil
❑ Oil filters ,
❑Antifreeze/
transmission fluid = '4,1111
❑ Paint
❑ Solvent/degreaser
❑ Cooking grease
❑ Detergent
❑ Home improvement waste (concrete,
mortar)
❑ Pet waste
❑Yard waste (leaves, grass, mulch)
❑ Excessive dirt and
gravel
❑ Trash =
❑ Construction debris
riV a 'L _
❑ Pesticides ands_ •
fertilizers ;h
❑ Other
For more information or to report
an illegal discharge of
pollutants,please call:
Riverside County Residents, Call . . . Aga.
1-800-506-2555 IT DRAINS
���EPA www.epa.gov/npdes/stormwater
United states Page 1008 of 1374
Environmental Protection EPA 833-F-03-002
Agency April 2003
Stormwater runoff is precipitation from rain or
snowmelt that flows over the ground. As it flows,
it can pick up debris,chemicals,dirt,and other
pollutants and deposit them into a storm sewer
system or waterbody
Anything that enters a storm sewer system is
dischargeduntreatedinto the waterbodies we
use for swimming,fishing,and providing
drinking water
Remember:
Only Rain Down the Drain
To keep the stormwater leaving your home or
workplace clean,follow these simple guidelines:
Use •-
pesticides
and fertilizers
sparingly '�'' "'
♦ Repair auto
leaks.
A Dispose of
household
hazardous waste,used auto fluids
(antifreeze,oil,etc.),and batteries at
designated collection or recycling locations.
A Clean up after your pet.
a Use a commercial car wash or wash your
car on a lawn or other unpaved surface.
Sweep up yard debris rather than hosing
down areas.Compost or recycle yard waste
when possible.
Clean paint brushes in a sink,not outdoors.
Properly dispose of excess paints through a
household hazardous waste collection
program.
ti; •
41 Sweep up and
properly -
dispose of
construction
Yi4•4
debris like ��'y
concrete and
•
mortar
7n._ - Page 1009 of 1374
Non-Stormwater Discharges SC- 10
Objectives
Protect tlw Bay • Cover
IIIL
aste Paint
• Contain
• Educate
■ Reduce/Nininize
,i ■ Product Substitution
Use the Household Waste
————- I.
-"' Treatment Fadlily
Description Targeted Constituents
Non-stormwater discharges are those flows that do not consist Sediment entirely of stormwater. Some non-stormwater discharges do not Nutrients ✓ include pollutants and may be discharged to the storm drain. Trash These include uncontaminated groundwater and natural springs. Metals ✓ There are also some non-stormwater discharges that typically do Bacteria ✓ not contain pollutants and may be discharged to the storm drain pil and Grease ✓ with conditions. These include car washing, air conditioner condensate, etc. However there are certain non-stormwater Organics ✓ discharges that pose environmental concern. These discharges may originate from illegal dumping or from internal floor drains, appliances,industrial processes, sinks, and toilets that are connected to the nearby storm drainage system.These
discharges (which may include: process waste waters, cooling waters,wash waters, and sanitary wastewater)can carry
substances such as paint, oil,fuel and other automotive fluids, chemicals and other pollutants into storm drains. They can generally be detected through a combination of detection and elimination. The ultimate goal is to effectively eliminate non- stormwater discharges to the stormwater drainage system through implementation of measures to detect, correct, and enforce against illicit connections and illegal discharges of pollutants on streets and into the storm drain system and creeks.
Approach
Initially the industry must make an assessment of non-
stormwater discharges to determine which types must be CAS Q A eliminated or addressed through BMPs. The focus of the California following approach is in the elimination of non-stormwater Stormwater discharges. Quality
Association
January 2003 California Stormwater BMP Handbook 1 of 6 Industrial and Commercial
www.cabmphandbooks.com Page 1010 of 1374
SC- 10 Non-Stormwater Discharges
Pollution Prevention
■ Ensure that used oil,used antifreeze, and hazardous chemical recycling programs are being implemented. Encourage litter control.
Suggested Protocols
Recommended Complaint Investigation Equipment
■ Field Screening Analysis
- pH paper or meter
- Commercial stormwater pollutant screening kit that can detect for reactive phosphorus, nitrate nitrogen, ammonium nitrogen, specific conductance, and turbidity - Sample jars
- Sample collection pole
- A tool to remove access hole covers
■ Laboratory Analysis
- Sample cooler
- Ice
- Sample jars and labels
- Chain of custody forms
■ Documentation
- Camera
- Notebook
- Pens
- Notice of Violation forms
- Educational materials
General
■ Develop clear protocols and lines of communication for effectively prohibiting non- stormwater discharges, especially those that are not classified as hazardous. These are often not responded to as effectively as they need to be.
■ Stencil or demarcate storm drains,where applicable,to prevent illegal disposal of pollutants.
Storm drain inlets should have messages such as"Dump No Waste Drains to Stream" stenciled or demarcated next to them to warn against ignorant or intentional dumping of pollutants into the storm drainage system.
2 of 6 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Non-Stormwater Discharges SC- 10
• See SC44 Stormwater Drainage System Maintenance for additional information.
Illicit Connections
• Locate discharges from the industrial storm drainage system to the municipal storm drain system through review of"as-built"piping schematics.
• Isolate problem areas and plug illicit discharge points. • Locate and evaluate all discharges to the industrial storm drain system.
Visual Inspection and Inventory
• Inventory and inspect each discharge point during dry weather. • Keep in mind that drainage from a storm event can continue for a day or two following the end of a storm and groundwater may infiltrate the underground stormwater collection system. Also,non-stormwater discharges are often intermittent and may require periodic inspections.
Review Infield Piping
• A review of the"as-built"piping schematic is a way to determine if there are any connections to the stormwater collection system.
• Inspect the path of floor drains in older buildings.
Smoke Testing
• Smoke testing of wastewater and stormwater collection systems is used to detect connections between the two systems.
• During dry weather the stormwater collection system is filled with smoke and then traced to sources.The appearance of smoke at the base of a toilet indicates that there may be a connection between the sanitary and the stormwater system.
Dye Testing
• A dye test can be performed by simply releasing a dye into either your sanitary or process wastewater system and examining the discharge points from the stormwater collection system for discoloration.
TV Inspection of Drainage System
• TV Cameras can be employed to visually identify illicit connections to the industrial storm drainage system.
Illegal Dumping
• Regularly inspect and clean up hot spots and other storm drainage areas where illegal dumping and disposal occurs.
• On paved surfaces, clean up spills with as little water as possible. Use a rag for small spills, a damp mop for general cleanup, and absorbent material for larger spills. If the spilled material is hazardous,then the used cleanup materials are also hazardous and must be sent to a certified laundry(rags) or disposed of as hazardous waste.
January 2003 California Stormwater BMP Handbook 3 of 6 Industrial and Commercial
www.cabmphandbooks.com Page 1012 of 1374
SC- 10 Non-Stormwater Discharges
• Never hose down or bury dry material spills. Sweep up the material and dispose of properly. • Use adsorbent materials on small spills rather than hosing down the spill. Remove the adsorbent materials promptly and dispose of properly.
• For larger spills, a private spill cleanup company or Hazmat team may be necessary.
Once a site has been cleaned:
• Post"No Dumping"signs with a phone number for reporting dumping and disposal. • Landscaping and beautification efforts of hot spots may also discourage future dumping, as well as provide open space and increase property values. • Lighting or barriers may also be needed to discourage future dumping. • See fact sheet SC1i Spill Prevention, Control, and Cleanup.
Inspection
• Regularly inspect and clean up hot spots and other storm drainage areas where illegal dumping and disposal occurs.
• Conduct field investigations of the industrial storm drain system for potential sources of non-stormwater discharges.
• Pro-actively conduct investigations of high priority areas. Based on historical data,prioritize specific geographic areas and/or incident type for pro-active investigations.
Reporting
• A database is useful for defining and tracking the magnitude and location of the problem. • Report prohibited non-stormwater discharges observed during the course of normal daily activities so they can be investigated, contained, and cleaned up or eliminated. • Document that non-stormwater discharges have been eliminated by recording tests performed, methods used, dates of testing, and any on-site drainage points observed. • Document and report annually the results of the program. • Maintain documentation of illicit connection and illegal dumping incidents,including significant conditionally exempt discharges that are not properly managed.
Training
• Training of technical staff in identifying and documenting illegal dumping incidents is required.
• Consider posting the quick reference table near storm drains to reinforce training. • Train employees to identify non-stormwater discharges and report discharges to the appropriate departments.
4 of 6 California Stormwater BMP Handbook January 2003 Industrial and Commercial
www.cabmphandbooks.com Page 1013 of 1374
Non-Stormwater Discharges SC- 10
■ Educate employees about spill prevention and cleanup. ■ Well-trained employees can reduce human errors that lead to accidental releases or spills.
The employee should have the tools and knowledge to immediately begin cleaning up a spill should one occur. Employees should be familiar with the Spill Prevention Control and Countermeasure Plan.
■ Determine and implement appropriate outreach efforts to reduce non-permissible non- stormwater discharges.
■ Conduct spill response drills annually(if no events occurred to evaluate your plan) in cooperation with other industries.
■ When a responsible party is identified, educate the party on the impacts of his or her actions.
Spill Response and Prevention
■ See SCii Spill Prevention Control and Cleanup.
Other Considerations
■ Many facilities do not have accurate, up-to-date schematic drawings.
Requirements
Costs(including capital and operation&maintenance)
■ The primary cost is for staff time and depends on how aggressively a program is implemented.
■ Cost for containment and disposal is borne by the discharger. ■ Illicit connections can be difficult to locate especially if there is groundwater infiltration. ■ Indoor floor drains may require re-plumbing if cross-connections to storm drains are detected.
Maintenance(including administrative and staffing)
■ Illegal dumping and illicit connection violations requires technical staff to detect and investigate them.
Supplemental Information
Further Detail of the BMP
Illegal Dumping
■ Substances illegally dumped on streets and into the storm drain systems and creeks include paints, used oil and other automotive fluids, construction debris, chemicals, fresh concrete, leaves, grass clippings, and pet wastes.All of these wastes cause stormwater and receiving water quality problems as well as clog the storm drain system itself. ■ Establish a system for tracking incidents. The system should be designed to identify the following:
- Illegal dumping hot spots
January 2003 California Stormwater BMP Handbook 5 of 6 Industrial and Commercial
www.cabmphandbooks.com Page 1014 of 1374
SC- 10 Non-Stormwater Discharges
- Types and quantities (in some cases) of wastes
- Patterns in time of occurrence(time of day/night,month,or year) - Mode of dumping(abandoned containers, "midnight dumping"from moving vehicles, direct dumping of materials, accidents/spills)
- Responsible parties
One of the keys to success of reducing or eliminating illegal dumping is increasing the number of people at the facility who are aware of the problem and who have the tools to at least identify the incident,if not correct it. Therefore,train field staff to recognize and report the incidents.
What constitutes a"non-stormwater"discharge?
• Non-stormwater discharges to the stormwater collection system may include any water used directly in the manufacturing process (process wastewater), air conditioning condensate and coolant, non-contact cooling water, cooling equipment condensate, outdoor secondary containment water,vehicle and equipment wash water, sink and drinking fountain wastewater, sanitary wastes, or other wastewaters.
Permit Requirements
• Facilities subject to stormwater permit requirements must include a certification that the stormwater collection system has been tested or evaluated for the presence of non- stormwater discharges. The State's General Industrial Stormwater Permit requires that non- stormwater discharges be eliminated prior to implementation of the facility's SWPPP.
Performance Evaluation
• Review annually internal investigation results; assess whether goals were met and what changes or improvements are necessary.
• Obtain feedback from personnel assigned to respond to,or inspect for,illicit connections and illegal dumping incidents.
References and Resources
California's Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html Clark County Storm Water Pollution Control Manual
http://www.co.clark.wa.us/pubworks/bmpman.pdf
King County Storm Water Pollution Control Manual http://dnr.metrokc.gov/wlr/dss/spcm.htm Santa Clara Valley Urban Runoff Pollution Prevention Program http://www.scvurppp.org The Storm Water Managers Resource Center http://www.stormwatercenter.net/ 6 of 6 California Stormwater BMP Handbook January 2003 Industrial and Commercial
www.cabmphandbooks.com Page 1015 of 1374
Spill Prevention, Control & Cleanup SC- 11
Objectives
1111 • Cover
_ • Contain
■ Educate
'kI_ Li � i� 4 • Reduce/Ninimize
a y ` ■ Product Substitution
�•: -
Photo Credit: Geoff Brosseau
Description Targeted Constituents
Many activities that occur at an industrial or commercial site Sediment have the potential to cause accidental or illegal spills. Nutrients Preparation for accidental or illegal spills,with proper training Trash and reporting systems implemented, can minimize the discharge Metals Q of pollutants to the environment. Bacteria
Spills and leaks are one of the largest contributors of stormwater QI and Grease Q pollutants. Spill prevention and control plans are applicable to Organics Q any site at which hazardous materials are stored or used. An effective plan should have spill prevention and response procedures that identify potential spill areas, specify material handling procedures,describe spill response procedures, and provide spill clean-up equipment. The plan should take steps to identify and characterize potential spills, eliminate and reduce spill potential, respond to spills when they occur in an effort to prevent pollutants from entering the stormwater drainage system, and train personnel to prevent and control future spills.
Approach
Pollution Prevention
• Develop procedures to prevent/mitigate spills to storm drain systems. Develop and standardize reporting procedures,
containment, storage, and disposal activities,documentation, and follow-up procedures.
• Develop a Spill Prevention Control and Countermeasure (SPCC) Plan. The plan should include:
ASQA
CALIFORNIA STORMWATFF
January 2003 California Stormwater BMP Handbook 1 of 9 Errata 4-06 Industrial and Commercial
www.cabmphandbooks.com Page 1016 of 1374
SC- 11 Spill Prevention, Control & Cleanup
- Description of the facility, owner and address, activities and chemicals present - Facility map
- Notification and evacuation procedures
- Cleanup instructions
- Identification of responsible departments
- Identify key spill response personnel
■ Recycle, reclaim, or reuse materials whenever possible. This will reduce the amount of process materials that are brought into the facility.
Suggested Protocols (including equipment needs)
Spill Prevention
■ Develop procedures to prevent/mitigate spills to storm drain systems. Develop and standardize reporting procedures, containment, storage, and disposal activities, documentation, and follow-up procedures.
■ If consistent illegal dumping is observed at the facility:
- Post"No Dumping" signs with a phone number for reporting illegal dumping and disposal. Signs should also indicate fines and penalties applicable for illegal dumping. - Landscaping and beautification efforts may also discourage illegal dumping. - Bright lighting and/or entrance barriers may also be needed to discourage illegal dumping.
■ Store and contain liquid materials in such a manner that if the tank is ruptured,the contents will not discharge, flow, or be washed into the storm drainage system, surface waters, or groundwater.
■ If the liquid is oil, gas, or other material that separates from and floats on water, install a spill control device (such as a tee section) in the catch basins that collects runoff from the storage tank area.
■ Routine maintenance:
- Place drip pans or absorbent materials beneath all mounted taps, and at all potential drip and spill locations during filling and unloading of tanks.Any collected liquids or soiled absorbent materials must be reused/recycled or properly disposed. - Store and maintain appropriate spill cleanup materials in a location known to all near the tank storage area; and ensure that employees are familiar with the site's spill control plan and/or proper spill cleanup procedures.
- Sweep and clean the storage area monthly if it is paved, do not hose down the area to a storm drain.
2 of 9 California Stormwater BMP Handbook January 2003 Industrial and Commercial Errata 4-06
www.cabmphandbooks.com Page 1017 of 1374
Spill Prevention, Control & Cleanup SC- 11
- Check tanks (and any containment sumps)daily for leaks and spills. Replace tanks that are leaking, corroded, or otherwise deteriorating with tanks in good condition. Collect all spilled liquids and properly dispose of them.
• Label all containers according to their contents (e.g., solvent,gasoline). • Label hazardous substances regarding the potential hazard(corrosive, radioactive, flammable, explosive,poisonous).
• Prominently display required labels on transported hazardous and toxic materials (per US DOT regulations).
• Identify key spill response personnel.
Spill Control and Cleanup Activities
• Follow the Spill Prevention Control and Countermeasure Plan. • Clean up leaks and spills immediately.
• Place a stockpile of spill cleanup materials where it will be readily accessible (e.g., near storage and maintenance areas).
• On paved surfaces, clean up spills with as little water as possible. Use a rag for small spills, a damp mop for general cleanup, and absorbent material for larger spills. If the spilled material is hazardous,then the used cleanup materials are also hazardous and must be sent to a certified laundry(rags) or disposed of as hazardous waste. Physical methods for the cleanup of dry chemicals include the use of brooms, shovels, sweepers, or plows. • Never hose down or bury dry material spills. Sweep up the material and dispose of properly. • Chemical cleanups of material can be achieved with the use of adsorbents, gels, and foams.
Use adsorbent materials on small spills rather than hosing down the spill. Remove the adsorbent materials promptly and dispose of properly.
• For larger spills, a private spill cleanup company or Hazmat team may be necessary.
Reporting
• Report spills that pose an immediate threat to human health or the environment to the Regional Water Quality Control Board.
• Federal regulations require that any oil spill into a water body or onto an adjoining shoreline be reported to the National Response Center(NRC) at 800-424-8802 (24 hour). • Report spills to local agencies, such as the fire department; they can assist in cleanup. • Establish a system for tracking incidents. The system should be designed to identify the following:
- Types and quantities (in some cases) of wastes
- Patterns in time of occurrence(time of day/night,month, or year) January 2003 California Stormwater BMP Handbook 3 of 9 Errata 4-06 Industrial and Commercial
www.cabmphandbooks.com Page 1018 of 1374
SC- 11 Spill Prevention, Control & Cleanup
- Mode of dumping(abandoned containers, "midnight dumping"from moving vehicles, direct dumping of materials, accidents/spills)
- Responsible parties
Training
■ Educate employees about spill prevention and cleanup. ■ Well-trained employees can reduce human errors that lead to accidental releases or spills:
- The employee should have the tools and knowledge to immediately begin cleaning up a spill should one occur.
- Employees should be familiar with the Spill Prevention Control and Countermeasure Plan.
■ Employees should be educated about aboveground storage tank requirements. Employees responsible for aboveground storage tanks and liquid transfers should be thoroughly familiar with the Spill Prevention Control and Countermeasure Plan and the plan should be readily available.
■ Train employees to recognize and report illegal dumping incidents.
Other Considerations (Limitations and Regulations)
■ A Spill Prevention Control and Countermeasure Plan (SPCC)is required for facilities that are subject to the oil pollution regulations specified in Part 112 of Title 40 of the Code of Federal Regulations or if they have a storage capacity of 10,00o gallons or more of petroleum. (Health and Safety Code 6.67)
■ State regulations also exist for storage of hazardous materials (Health&Safety Code Chapter
6.95),including the preparation of area and business plans for emergency response to the releases or threatened releases.
■ Consider requiring smaller secondary containment areas (less than 200 sq.ft.)to be connected to the sanitary sewer, prohibiting any hard connections to the storm drain.
Requirements
Costs(including capital and operation&maintenance)
■ Will vary depending on the size of the facility and the necessary controls. ■ Prevention of leaks and spills is inexpensive. Treatment and/or disposal of contaminated soil or water can be quite expensive.
Maintenance(including administrative and staffing)
■ This BMP has no major administrative or staffing requirements. However, extra time is needed to properly handle and dispose of spills,which results in increased labor costs. 4 of 9 California Stormwater BMP Handbook January 2003 Industrial and Commercial Errata 4-06
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Spill Prevention, Control & Cleanup SC- 11
Supplemental Information
Further Detail of the BMP
Reporting
Record keeping and internal reporting represent good operating practices because they can increase the efficiency of the facility and the effectiveness of BMPs. A good record keeping system helps the facility minimize incident recurrence, correctly respond with appropriate cleanup activities, and comply with legal requirements. A record keeping and reporting system should be set up for documenting spills,leaks, and other discharges,including discharges of hazardous substances in reportable quantities. Incident records describe the quality and quantity of non-stormwater discharges to the storm sewer. These records should contain the following information:
• Date and time of the incident
• Weather conditions
• Duration of the spill/leak/discharge
• Cause of the spill/leak/discharge
• Response procedures implemented
• Persons notified
• Environmental problems associated with the spill/leak/discharge Separate record keeping systems should be established to document housekeeping and preventive maintenance inspections, and training activities. All housekeeping and preventive maintenance inspections should be documented. Inspection documentation should contain the following information:
• The date and time the inspection was performed
• Name of the inspector
• Items inspected
• Problems noted
• Corrective action required
• Date corrective action was taken
Other means to document and record inspection results are field notes,timed and dated photographs,videotapes, and drawings and maps.
Aboveground Tank Leak and Spill Control
Accidental releases of materials from aboveground liquid storage tanks present the potential for contaminating stormwater with many different pollutants.Materials spilled,leaked, or lost from January 2003 California Stormwater BMP Handbook 5 of 9 Errata 4-06 Industrial and Commercial
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SC- 11 Spill Prevention, Control & Cleanup
tanks may accumulate in soils or on impervious surfaces and be carried away by stormwater runoff.
The most common causes of unintentional releases are:
■ Installation problems
■ Failure of piping systems (pipes,pumps,flanges, couplings,hoses, and valves) ■ External corrosion and structural failure
■ Spills and overfills due to operator error
■ Leaks during pumping of liquids or gases from truck or rail car to a storage tank or vice versa Storage of reactive,ignitable, or flammable liquids should comply with the Uniform Fire Code and the National Electric Code. Practices listed below should be employed to enhance the code requirements:
■ Tanks should be placed in a designated area.
■ Tanks located in areas where firearms are discharged should be encapsulated in concrete or the equivalent.
■ Designated areas should be impervious and paved with Portland cement concrete,free of cracks and gaps,in order to contain leaks and spills.
■ Liquid materials should be stored in UL approved double walled tanks or surrounded by a curb or dike to provide the volume to contain io percent of the volume of all of the containers or no percent of the volume of the largest container,whichever is greater. The area inside the curb should slope to a drain.
■ For used oil or dangerous waste, a dead-end sump should be installed in the drain. ■ All other liquids should be drained to the sanitary sewer if available.The drain must have a positive control such as a lock,valve, or plug to prevent release of contaminated liquids. ■ Accumulated stormwater in petroleum storage areas should be passed through an oil/water separator.
Maintenance is critical to preventing leaks and spills. Conduct routine inspections and:
■ Check for external corrosion and structural failure. ■ Check for spills and overfills due to operator error. ■ Check for failure of piping system(pipes,pumps,flanger, coupling,hoses, and valves). ■ Check for leaks or spills during pumping of liquids or gases from truck or rail car to a storage facility or vice versa.
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Spill Prevention, Control & Cleanup SC- 11
• Visually inspect new tank or container installation for loose fittings, poor welding, and improper or poorly fitted gaskets.
• Inspect tank foundations,connections, coatings, and tank walls and piping system. Look for corrosion,leaks, cracks, scratches, and other physical damage that may weaken the tank or container system.
• Frequently relocate accumulated stormwater during the wet season. • Periodically conduct integrity testing by a qualified professional.
Vehicle Leak and Spill Control
Major spills on roadways and other public areas are generally handled by highly trained Hazmat teams from local fire departments or environmental health departments. The measures listed below pertain to leaks and smaller spills at vehicle maintenance shops.
In addition to implementing the spill prevention, control, and clean up practices above, use the following measures related to specific activities:
Vehicle and Equipment Maintenance
• Perform all vehicle fluid removal or changing inside or under cover to prevent the run-on of stormwater and the runoff of spills.
• Regularly inspect vehicles and equipment for leaks, and repair immediately. • Check incoming vehicles and equipment(including delivery trucks, and employee and subcontractor vehicles)for leaking oil and fluids. Do not allow leaking vehicles or equipment onsite.
• Always use secondary containment, such as a drain pan or drop cloth,to catch spills or leaks when removing or changing fluids.
• Immediately drain all fluids from wrecked vehicles. • Store wrecked vehicles or damaged equipment under cover. • Place drip pans or absorbent materials under heavy equipment when not in use. • Use adsorbent materials on small spills rather than hosing down the spill. • Remove the adsorbent materials promptly and dispose of properly. • Promptly transfer used fluids to the proper waste or recycling drums. Don't leave full drip pans or other open containers lying around.
• Oil filters disposed of in trashcans or dumpsters can leak oil and contaminate stormwater.
Place the oil filter in a funnel over a waste oil recycling drum to drain excess oil before disposal. Oil filters can also be recycled. Ask your oil supplier or recycler about recycling oil filters.
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SC- 11 Spill Prevention, Control & Cleanup
■ Store cracked batteries in a non-leaking secondary container. Do this with all cracked batteries, even if you think all the acid has drained out. If you drop a battery,treat it as if it is cracked. Put it into the containment area until you are sure it is not leaking.
Vehicle and Equipment Fueling
■ Design the fueling area to prevent the run-on of stormwater and the runoff of spills:
- Cover fueling area if possible.
- Use a perimeter drain or slope pavement inward with drainage to a sump. - Pave fueling area with concrete rather than asphalt. ■ If dead-end sump is not used to collect spills,install an oil/water separator. ■ Install vapor recovery nozzles to help control drips as well as air pollution. ■ Discourage"topping-off of fuel tanks.
■ Use secondary containment when transferring fuel from the tank truck to the fuel tank. ■ Use adsorbent materials on small spills and general cleaning rather than hosing down the area. Remove the adsorbent materials promptly.
■ Carry out all Federal and State requirements regarding underground storage tanks, or install above ground tanks.
■ Do not use mobile fueling of mobile industrial equipment around the facility; rather, transport the equipment to designated fueling areas.
■ Keep your Spill Prevention Control and Countermeasure(SPCC) Plan up-to-date. ■ Train employees in proper fueling and cleanup procedures.
Industrial Spill Prevention Response
For the purposes of developing a spill prevention and response program to meet the stormwater regulations,facility managers should use information provided in this fact sheet and the spill prevention/response portions of the fact sheets in this handbook,for specific activities. The program should:
■ Integrate with existing emergency response/hazardous materials programs (e.g., Fire Department)
■ Develop procedures to prevent/mitigate spills to storm drain systems ■ Identify responsible departments
■ Develop and standardize reporting procedures, containment, storage, and disposal activities, documentation, and follow-up procedures
■ Address spills at municipal facilities, as well as public areas 8 of 9 California Stormwater BMP Handbook January 2003 Industrial and Commercial Errata 4-06
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Spill Prevention, Control & Cleanup SC- 11
■ Provide training concerning spill prevention, response and cleanup to all appropriate personnel
References and Resources
California's Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html Clark County Storm Water Pollution Control Manual
http://www.co.clark.wa.us/pubworks/bmpman.pdf
King County Storm Water Pollution Control Manual http://dnr.metrokc.gov/wlr/dss/spcm.htm Santa Clara Valley Urban Runoff Pollution Prevention Program http://www.scvurppp.org The Stormwater Managers Resource Center http://www.stormwatercenter.net/ January 2003 California Stormwater BMP Handbook 9 of 9 Errata 4-06 Industrial and Commercial
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Outdoor Loading/ Unloading SC-30
Objectives
- _ ■ Cover
� ■ Contain
• Educate
• Reduce/Ninirrize
. Product Substitution
4 Description
The loading/unloading of materials usually takes place outside Targeted Constituents on docks or terminals; therefore,materials spilled,leaked,or lost Sediment ✓ during loading/unloading may collect in the soil or on other Nutrients ✓ surfaces and have the potential to be carried away by stormwater Trash runoff or when the area is cleaned. Additionally, rainfall may Metals ✓ wash pollutants from machinery used to unload or move Bacteria materials. Implementation of the following protocols will Oil and Grease ✓ prevent or reduce the discharge of pollutants to stormwater from Organics ✓ outdoor loading/unloading of materials.
Approach
Reduce potential for pollutant discharge through source control pollution prevention and BMP implementation. Successful implementation depends on effective training of employees on applicable BMPs and general pollution prevention strategies and objectives.
Pollution Prevention
• Keep accurate maintenance logs to evaluate materials removed and improvements made.
• Park tank trucks or delivery vehicles in designated areas so that spills or leaks can be contained.
• Limit exposure of material to rainfall whenever possible. • Prevent stormwater run-on. C A S Q A
• Check equipment regularly for leaks. California Stormwater
Quality
Association
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SC-30 Outdoor Loading/ Unloading
Suggested Protocols
Loading and Unloading — General Guidelines
■ Develop an operations plan that describes procedures for loading and/or unloading. ■ Conduct loading and unloading in dry weather if possible. ■ Cover designated loading/unloading areas to reduce exposure of materials to rain. ■ Consider placing a seal or door skirt between delivery vehicles and building to prevent exposure to rain.
■ Design loading/unloading area to prevent stormwater run-on,which would include grading or berming the area, and position roof downspouts so they direct stormwater away from the loading/unloading areas.
■ Have employees load and unload all materials and equipment in covered areas such as building overhangs at loading docks if feasible.
■ Load/unload only at designated loading areas.
■ Use drip pans underneath hose and pipe connections and other leak-prone spots during liquid transfer operations, and when making and breaking connections. Several drip pans should be stored in a covered location near the liquid transfer area so that they are always available,yet protected from precipitation when not in use. Drip pans can be made specifically for railroad tracks. Drip pans must be cleaned periodically, and drip collected materials must be disposed of properly.
■ Pave loading areas with concrete instead of asphalt. ■ Avoid placing storm drains in the area.
■ Grade and/or berm the loading/unloading area to a drain that is connected to a deadend.
Inspection
■ Check loading and unloading equipment regularly for leaks,including valves,pumps,flanges and connections.
■ Look for dust or fumes during loading or unloading operations.
Training
■ Train employees (e.g.,fork lift operators)and contractors on proper spill containment and cleanup.
■ Have employees trained in spill containment and cleanup present during loading/unloading. ■ Train employees in proper handling techniques during liquid transfers to avoid spills. ■ Make sure forklift operators are properly trained on loading and unloading procedures. 2 of 4 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Outdoor Loading/ Unloading SC-30
Spill Response and Prevention
• Keep your Spill Prevention Control and Countermeasure (SPCC) Plan up-to-date. • Contain leaks during transfer.
• Store and maintain appropriate spill cleanup materials in a location that is readily accessible and known to all and ensure that employees are familiar with the site's spill control plan and proper spill cleanup procedures.
• Have an emergency spill cleanup plan readily available. • Use drip pans or comparable devices when transferring oils, solvents, and paints.
Other Considerations(Limitations and Regulations)
• Space and time limitations may preclude all transfers from being performed indoors or under cover.
• It may not be possible to conduct transfers only during dry weather.
Requirements
Costs
Costs should be low except when covering a large loading/unloading area.
Maintenance
• Conduct regular inspections and make repairs as necessary. The frequency of repairs will depend on the age of the facility.
• Check loading and unloading equipment regularly for leaks. • Conduct regular broom dry-sweeping of area.
Supplemental Information
Further Detail of the BMP
Special Circumstances for Indoor Loading/Unloading of Materials Loading or unloading of liquids should occur in the manufacturing building so that any spills that are not completely retained can be discharged to the sanitary sewer,treatment plant,or treated in a manner consistent with local sewer authorities and permit requirements. • For loading and unloading tank trucks to above and below ground storage tanks,the following procedures should be used:
- The area where the transfer takes place should be paved. If the liquid is reactive with the asphalt, Portland cement should be used to pave the area. - The transfer area should be designed to prevent run-on of stormwater from adjacent areas. Sloping the pad and using a curb,like a speed bump, around the uphill side of the transfer area should reduce run-on.
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SC-30 Outdoor Loading/ Unloading
- The transfer area should be designed to prevent runoff of spilled liquids from the area.
Sloping the area to a drain should prevent runoff. The drain should be connected to a dead-end sump or to the sanitary sewer. A positive control valve should be installed on the drain.
■ For transfer from rail cars to storage tanks that must occur outside,use the following procedures:
- Drip pans should be placed at locations where spillage may occur, such as hose connections,hose reels, and filler nozzles. Use drip pans when making and breaking connections.
- Drip pan systems should be installed between the rails to collect spillage from tank cars.
References and Resources
California's Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html Clark County Storm Water Pollution Control Manual
http://www.co.clark.wa.us/pubworks/bmpman.pdf
King County Storm Water Pollution Control Manual http://dnr.metrokc.gov/wlr/dss/spcm.htm Santa Clara Valley Urban Runoff Pollution Prevention Program http://www.scvurppp.org The Storm Water Managers Resource Center http://www.stormwatercenter.net/ 4 of 4 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Safer Alternative Products SC-35
Description Objectives
Promote the use of less harmful products and products that • Educate contain little or no TMDL pollutants. Alternatives exist for most • Reduce/Mnirrize product classes including chemical fertilizers,pesticides, • Product Substitution cleaning solutions,janitorial chemicals, automotive and paint products, and consumables (batteries,fluorescent lamps).
Approach
Pattern a new program after the many established programs around the state and country. Integrate this best management practice as much as possible with existing programs at your facility.
Develop a comprehensive program based on:
• The"Precautionary Principle,"which is an alternative to the "Risk Assessment" model that says it's acceptable to use a potentially harmful product until physical evidence of its Targeted Constituents harmful effects are established and deemed too costly from an environmental or public health perspective. For instance, Sediment a risk assessment approach might say it's acceptable to use a Nutrients ✓ pesticide until there is direct proof of an environmental Trash impact. The Precautionary Principle approach is used to Metals ✓ evaluate whether a given product is safe,whether it is really Bacteria necessary, and whether alternative products would perform Oil and Grease ✓ just as well. Organics ✓
• Environmentally Preferable Purchasing Program to minimize the purchase of products containing hazardous ingredients used in the facility's custodial services,fleet maintenance, and facility maintenance in favor of using alternate products that pose less risk to employees and to the environment. • Integrated Pest Management(IPM) or Less-Toxic Pesticide Program,which uses a pest management approach that
minimizes the use of toxic chemicals and gets rid of pests by methods that pose a lower risk to employees,the public, and the environment.
• Energy Efficiency Program including no-cost and low-cost energy conservation and efficiency actions that can reduce both energy consumption and electricity bills, along with long-term energy efficiency investments.
Consider the following mechanisms for developing and
implementing a comprehensive program: C, A S Q A California
• Policies Stormwater
Quality
Association
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SC-35 Safer Alternative Products
■ Procedures
- Standard operating procedures (SOPs)
- Purchasing guidelines and procedures
- Bid packages (services and supplies)
■ Materials
- Preferred or approved product and supplier lists
- Product and supplier evaluation criteria
- Training sessions and manuals
- Fact sheets for employees
Implement this BMP in conjunction with the Vehicle and Equipment Management fact sheets (SC2o — SC22) and SC4i, Building and Grounds Maintenance.
Training
■ Employees who handle potentially harmful materials in the use of safer alternatives. ■ Purchasing departments should be encouraged to procure less hazardous materials and products that contain little or no harmful substances or TMDL pollutants.
Regulations
This BMP has no regulatory requirements. Existing regulations already encourage facilities to reduce the use of hazardous materials through incentives such as reduced:
■ Specialized equipment storage and handling requirements, ■ Storm water runoff sampling requirements,
■ Training and licensing requirements, and
■ Record keeping and reporting requirements.
Equipment
■ There are no major equipment requirements to this BMP.
Limitations
■ Alternative products may not be available, suitable, or effective in every case.
Requirements
Cost Considerations
■ The primary cost is for staff time to: i) develop new policies and procedures and 2) educate purchasing departments and employees who handle potentially harmful materials about the availability,procurement, and use of safer alternatives. 2 of 5 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Safer Alternative Products SC-35
• Some alternative products may be slightly more expensive than conventional products.
Supplemental Information
Employees and contractors/ service providers can both be educated about safer alternatives by using information developed by a number of organizations including the references and resources listed below.
The following discussion provides some general information on safer alternatives. More specific information on particular hazardous materials and the available alternatives may be found in the references and resources listed below.
• Automotive products — Less toxic alternatives are not available for many automotive products, especially engine fluids. But there are alternatives to grease lubricants,car polishes, degreasers, and windshield washer solution. Rerefined motor oil is also available. • Vehicle/Trailer lubrication— Fifth wheel bearings on trucks require routine lubrication.
Adhesive lubricants are available to replace typical chassis grease. • Cleaners —Vegetables-based or citrus-based soaps are available to replace petroleum-based soaps/detergents.
• Paint products—Water-based paints,wood preservatives, stains, and finishes are available. • Pesticides— Specific alternative products or methods exist to control most insects,fungi, and weeds.
• Chemical Fertilizers—Compost and soil amendments are natural alternatives. • Consumables—Manufacturers have either reduced or are in the process of reducing the amount of heavy metals in consumables such as batteries and fluorescent lamps. All fluorescent lamps contain mercury,however low-mercury containing lamps are now available from most hardware and lighting stores. Fluorescent lamps are also more energy efficient than the average incandescent lamp.
• Janitorial chemicals — Even biodegradable soap can harm fish and wildlife before it biodegrades. Biodegradable does not mean non-toxic. Safer products and procedures are available for floor stripping and cleaning, as well as carpet,glass, metal, and restroom cleaning and disinfecting.
Examples
There are a number of business and trade associations, and communities with effective programs. Some of the more prominent are listed below in the references and resources section.
References and Resources
Note: Many of these references provide alternative products for materials that typically are used inside and disposed to the sanitary sewer as well as alternatives to products that usually end up in the storm drain.
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SC-35 Safer Alternative Products
General Sustainable Practices and Pollution Prevention Including Pollutant- Specific Information
California Department of Toxic Substances Control( www.dtsc.ca.gov) California Integrated Waste Management Board ( www.ciwmb.ca.gov) City of Santa Monica( www.santa-monica.org/environment) City of Palo Alto ( www.city.palo-alto.ca.us/cleanbay)
City and County of San Francisco, Department of the Environment ( www.ci.sf.ca.us/sfenvironment)
Earth 9ii ( www.earth9ii.org/master.asp)
Environmental Finance Center Region IX( www.greenstart.org/efc9) Flex Your Power( www.flexyourpower.ca.gov)
GreenBiz.com ( www.greenbiz.com)
Green Business Program ( www.abag.org/bayarea/enviro/gbus/gb.html) Pacific Industrial and Business Association( www.piba.org) Sacramento Clean Water Business Partners ( www.sacstormwater.org) USEPA BMP fact sheet—Alternative products
( http://cfpub.epa.gov/npdes/stormwater/menuofbmps/poll_2.cfm) USEPA Region IX Pollution Prevention Program( www.epa.gov/regiono9/p2) Western Regional Pollution Prevention Network( www.westp2net.org) Metals(mercury, copper)
National Electrical Manufacturers Association-Environment, Health and Safety ( www.nema.org)
Sustainable Conservation ( www.suscon.org)
Auto Recycling Project
Brake Pad Partnership
Pesticides and Chemical Fertilizers
Bio-Integral Resource Center( www.birc.org)
California Department of Pesticide Regulation ( www.cdpr.ca.gov) University of California Statewide IPM Program ( www.ipm.ucdavis.edu/default.html) 4 of 5 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Safer Alternative Products SC-35
Dioxins
Bay Area Dioxins Project( http://dioxin.abag.ca.gov/)
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Building & Grounds Maintenance SC-41
Objectives
• Cover
• Contain
� ._ - ■ Educate
r s
t{ - • Reduce/Ninimze
®
�""��� �, �� • Product Substitution
BUSINESS PARK
4 Targeted Constituents
Description Sediment ✓
Stormwater runoff from building and grounds maintenance Nutrients ✓ activities can be contaminated with toxic hydrocarbons in Trash solvents,fertilizers and pesticides,suspended solids,heavy Metals ✓ metals, abnormal pH, and oils and greases. Utilizing the Bacteria ✓ protocols in this fact sheet will prevent or reduce the discharge of QI and Grease pollutants to stormwater from building and grounds p,ganics maintenance activities by washing and cleaning up with as little water as possible,following good landscape management
practices,preventing and cleaning up spills immediately,keeping debris from entering the storm drains, and maintaining the stormwater collection system.
Approach
Reduce potential for pollutant discharge through source control pollution prevention and BMP implementation. Successful implementation depends on effective training of employees on applicable BMPs and general pollution prevention strategies and objectives.
Pollution Prevention
• Switch to non-toxic chemicals for maintenance when
possible.
• Choose cleaning agents that can be recycled.
• Encourage proper lawn management and landscaping, C A S Q A including use of native vegetation. California
Stormwater
Quality
Association
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SC-41 Building & Grounds Maintenance
• Encourage use of Integrated Pest Management techniques for pest control. • Encourage proper onsite recycling of yard trimmings. • Recycle residual paints, solvents,lumber, and other material as much as possible.
Suggested Protocols
Pressure Washing of Buildings,Rooftops, and Other Large Objects • In situations where soaps or detergents are used and the surrounding area is paved,pressure washers must use a water collection device that enables collection of wash water and associated solids.A sump pump,wet vacuum or similarly effective device must be used to collect the runoff and loose materials.The collected runoff and solids must be disposed of properly.
• If soaps or detergents are not used, and the surrounding area is paved,wash runoff does not have to be collected but must be screened. Pressure washers must use filter fabric or some other type of screen on the ground and/or in the catch basin to trap the particles in wash water runoff.
• If you are pressure washing on a grassed area(with or without soap),runoff must be dispersed as sheet flow as much as possible,rather than as a concentrated stream.The wash runoff must remain on the grass and not drain to pavement.
Landscaping Activities
• Dispose of grass clippings,leaves, sticks, or other collected vegetation as garbage, or by composting. Do not dispose of collected vegetation into waterways or storm drainage systems.
• Use mulch or other erosion control measures on exposed soils.
Building Repair,Remodeling, and Construction
• Do not dump any toxic substance or liquid waste on the pavement,the ground, or toward a storm drain.
• Use ground or drop cloths underneath outdoor painting, scraping, and sandblasting work, and properly dispose of collected material daily.
• Use a ground cloth or oversized tub for activities such as paint mixing and tool cleaning. • Clean paintbrushes and tools covered with water-based paints in sinks connected to sanitary sewers or in portable containers that can be dumped into a sanitary sewer drain. Brushes and tools covered with non-water-based paints,finishes, or other materials must be cleaned in a manner that enables collection of used solvents (e.g.,paint thinner,turpentine, etc.)for recycling or proper disposal.
• Use a storm drain cover,filter fabric, or similarly effective runoff control mechanism if dust, grit,wash water, or other pollutants may escape the work area and enter a catch basin. This is particularly necessary on rainy days.The containment device(s) must be in place at the beginning of the work day, and accumulated dirty runoff and solids must be collected and disposed of before removing the containment device(s) at the end of the work day. 2 of 5 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Building & Grounds Maintenance SC-41
• If you need to de-water an excavation site,you may need to filter the water before discharging to a catch basin or off-site. If directed off-site,you should direct the water through hay bales and filter fabric or use other sediment filters or traps. • Store toxic material under cover during precipitation events and when not in use.A cover would include tarps or other temporary cover material.
Mowing, Trimming, and Planting
• Dispose of leaves, sticks, or other collected vegetation as garbage,by composting or at a permitted landfill. Do not dispose of collected vegetation into waterways or storm drainage systems.
• Use mulch or other erosion control measures when soils are exposed. • Place temporarily stockpiled material away from watercourses and drain inlets, and berm or cover stockpiles to prevent material releases to the storm drain system. • Consider an alternative approach when bailing out muddy water: do not put it in the storm drain; pour over landscaped areas.
• Use hand weeding where practical.
Fertilizer and Pesticide Management
• Follow all federal, state, and local laws and regulations governing the use, storage, and disposal of fertilizers and pesticides and training of applicators and pest control advisors. • Use less toxic pesticides that will do the job when applicable. Avoid use of copper-based pesticides if possible.
• Do not use pesticides if rain is expected.
• Do not mix or prepare pesticides for application near storm drains. • Use the minimum amount needed for the job.
• Calibrate fertilizer distributors to avoid excessive application. • Employ techniques to minimize off-target application(e.g., spray drift) of pesticides, including consideration of alternative application techniques. • Apply pesticides only when wind speeds are low.
• Fertilizers should be worked into the soil rather than dumped or broadcast onto the surface. • Irrigate slowly to prevent runoff and then only as much as is needed. • Clean pavement and sidewalk if fertilizer is spilled on these surfaces before applying irrigation water.
• Dispose of empty pesticide containers according to the instructions on the container label.
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SC-41 Building & Grounds Maintenance
■ Use up the pesticides. Rinse containers, and use rinse water as product. Dispose of unused pesticide as hazardous waste.
■ Implement storage requirements for pesticide products with guidance from the local fire department and County Agricultural Commissioner. Provide secondary containment for pesticides.
Inspection
■ Inspect irrigation system periodically to ensure that the right amount of water is being applied and that excessive runoff is not occurring. Minimize excess watering and repair leaks in the irrigation system as soon as they are observed.
Training
■ Educate and train employees on pesticide use and in pesticide application techniques to prevent pollution.
■ Train employees and contractors in proper techniques for spill containment and cleanup. ■ Be sure the frequency of training takes into account the complexity of the operations and the nature of the staff.
Spill Response and Prevention
■ Keep your Spill Prevention Control and Countermeasure(SPCC) Plan up-to-date. ■ Place a stockpile of spill cleanup materials, such as brooms, dustpans, and vacuum sweepers (if desired) near the storage area where it will be readily accessible. ■ Have employees trained in spill containment and cleanup present during the loading/unloading of dangerous wastes,liquid chemicals, or other materials. ■ Familiarize employees with the Spill Prevention Control and Countermeasure Plan. ■ Clean up spills immediately.
Other Considerations
Alternative pest/weed controls may not be available, suitable, or effective in many cases.
Requirements
Costs
■ Cost will vary depending on the type and size of facility. ■ Overall costs should be low in comparison to other BMPs.
Maintenance
Sweep paved areas regularly to collect loose particles. Wipe up spills with rags and other absorbent material immediately, do not hose down the area to a storm drain. 4 of 5 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Building & Grounds Maintenance SC-41
Supplemental Information
Further Detail of the BMP
Fire Sprinkler Line Flushing
Building fire sprinkler line flushing may be a source of non-stormwater runoff pollution. The water entering the system is usually potable water, though in some areas it may be non-potable reclaimed wastewater. There are subsequent factors that may drastically reduce the quality of the water in such systems. Black iron pipe is usually used since it is cheaper than potable piping,but it is subject to rusting and results in lower quality water. Initially,the black iron pipe has an oil coating to protect it from rusting between manufacture and installation;this will contaminate the water from the first flush but not from subsequent flushes. Nitrates,poly- phosphates and other corrosion inhibitors, as well as fire suppressants and antifreeze may be added to the sprinkler water system. Water generally remains in the sprinkler system a long time (typically a year) and between flushes may accumulate iron, manganese,lead, copper, nickel, and zinc. The water generally becomes anoxic and contains living and dead bacteria and breakdown products from chlorination. This may result in a significant BOD problem and the water often smells. Consequently dispose fire sprinkler line flush water into the sanitary sewer.
Do not allow discharge to storm drain or infiltration due to potential high levels of pollutants in fire sprinkler line water.
References and Resources
California's Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html Clark County Storm Water Pollution Control Manual
http://www.co.clark.wa.us/pubworks/bmpman.pdf
King County Storm Water Pollution Control Manual http://dnr.metrokc.gov/wlr/dss/spcm.htm Mobile Cleaners Pilot Program: Final Report. 1997. Bay Area Stormwater Management Agencies Association(BASMAA). http://www.basmaa.org/
Pollution from Surface Cleaning Folder. 1996. Bay Area Stormwater Management Agencies Association(BASMAA). http://www.basmaa.org/
Santa Clara Valley Urban Runoff Pollution Prevention Program http://www.scvurppn.org The Storm Water Managers Resource Center http://www.stormwatercenter.net/ January 2003 California Stormwater BMP Handbook 5 of 5 Industrial and Commercial
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Building Repair and Construction SC-42
111_ Objectives11 • Cover
. !� Y'7 • Contain
Educate
,�� ,, • Reduce/Nfnimze
TY • n
`• • Recyde
•
I •
li:.
�.::•,i'. _ j tom HATS AHD -.
wf:•:+' SAFETY '
I MUST BE WORN {,
IiI AT ALL TEAE8
1 !
rIr lay..•.
V
c _
r_
Targeted Constituents
Description Sediment ✓
Modifications are common particularly at large industrial sites. Nutrients The activity may vary from minor and normal building repair to Trash major remodeling, or the construction of new facilities. These Metals activities can generate pollutants including solvents,paints, paint Bacteria and varnish removers,finishing residues, spent thinners, soap Oil and Grease cleaners,kerosene, asphalt and concrete materials, adhesive Crgania residues, and old asbestos installation. Protocols in this fact sheet are intended to prevent or reduce the discharge of pollutants to stormwater from building repair, remodeling, and construction by using soil erosion controls, enclosing or covering building material storage areas,using good housekeeping practices,using safer alternative products, and training employees.
Approach
Pollution Prevention
• Recycle residual paints, solvents,lumber, and other materials to the maximum extent practical.
• Buy recycled products to the maximum extent practical. • Inform on-site contractors of company policy on these matters and include appropriate provisions in their contract to ensure certain proper housekeeping and disposal practices are implemented. C A S Q A
California
Stormwater
Quality
Association
January 2003 California Stormwater BMP Handbook 1 of 4 Industrial and Commercial
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SC-42 Building Repair and Construction
• Make sure that nearby storm drains are well marked to minimize the chance of inadvertent disposal of residual paints and other liquids.
Suggested Protocols
Repair&Remodeling
• Follow BMPs identified in Construction BMP Handbook. • Maintain good housekeeping practices while work is underway. • Keep the work site clean and orderly. Remove debris in a timely fashion. Sweep the area. • Cover materials of particular concern that must be left outside,particularly during the rainy season.
• Do not dump waste liquids down the storm drain.
• Dispose of wash water, sweepings, and sediments properly. • Store materials properly that are normally used in repair and remodeling such as paints and solvents.
• Sweep out the gutter or wash the gutter and trap the particles at the outlet of the downspout if when repairing roofs, small particles have accumulated in the gutter. A sock or geofabric placed over the outlet may effectively trap the materials. If the downspout is tight lined, place a temporary plug at the first convenient point in the storm drain and pump out the water with a vactor truck, and clean the catch basin sump where you placed the plug. • Properly store and dispose waste materials generated from construction activities. See Construction BMP Handbook.
• Clean the storm drain system in the immediate vicinity of the construction activity after it is completed.
Painting
• Enclose painting operations consistent with local air quality regulations and OSHA. • Local air pollution regulations may, in many areas of the state, specify painting procedures which if properly carried out are usually sufficient to protect water quality. • Develop paint handling procedures for proper use, storage, and disposal of paints. • Transport paint and materials to and from job sites in containers with secure lids and tied down to the transport vehicle.
• Test and inspect spray equipment prior to starting to paint. Tighten all hoses and connections and do not overfill paint containers.
• Mix paint indoors before using so that any spill will not be exposed to rain. Do so even during dry weather because cleanup of a spill will never be i00%effective. • Transfer and load paint and hot thermoplastic away from storm drain inlets. 2 of 4 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Building Repair and Construction SC-42
• Do not transfer or load paint near storm drain inlets. • Plug nearby storm drain inlets prior to starting painting and remove plugs when job is complete when there is significant risk of a spill reaching storm drains. • Cover nearby storm drain inlets prior to starting work if sand blasting is used to remove paint.
• Use a ground cloth to collect the chips if painting requires scraping or sand blasting of the existing surface. Dispose the residue properly.
• Cover or enclose painting operations properly to avoid drift. • Clean the application equipment in a sink that is connected to the sanitary sewer if using water based paints.
• Capture all cleanup-water and dispose of properly.
• Dispose of paints containing lead or tributyl tin and considered a hazardous waste properly. • Store leftover paints if they are to be kept for the next job properly,or dispose properly. • Recycle paint when possible. Dispose of paint at an appropriate household hazardous waste facility.
Training
Proper education of off-site contractors is often overlooked. The conscientious efforts of well trained employees can be lost by unknowing off-site contractors, so make sure they are well informed about what they are expected to do.
Spill Response and Prevention
• Keep your Spill Prevention Control and Countermeasure(SPCC) Plan up-to-date. • Place a stockpile of spill cleanup materials where it will be readily accessible. • Clean up spills immediately.
• Excavate and remove the contaminated(stained) soil if a spill occurs on dirt.
Limitations
• This BMP is for minor construction only. The State's General Construction Activity Stormwater Permit has more requirements for larger projects. The companion "Construction Best Management Practice Handbook"contains specific guidance and best management practices for larger-scale projects.
• Hazardous waste that cannot be reused or recycled must be disposed of by a licensed hazardous waste hauler.
• Be certain that actions to help stormwater quality are consistent with Cal- and Fed-OSHA and air quality regulations.
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SC-42 Building Repair and Construction
Requirements
Costs
These BMPs are generally low to modest in cost.
Maintenance
N/A
Supplemental Information
Further Detail of the BMP
Soil/Erosion Control
If the work involves exposing large areas of soil, employ the appropriate soil erosion and control techniques. See the Construction Best Management Practice Handbook. If old buildings are being torn down and not replaced in the near future, stabilize the site using measures described in SC-40 Contaminated or Erodible Areas.
If a building is to be placed over an open area with a storm drainage system,make sure the storm inlets within the building are covered or removed, or the storm line is connected to the sanitary sewer. If because of the remodeling a new drainage system is to be installed or the existing system is to be modified, consider installing catch basins as they serve as effective"in- line"treatment devices. See Treatment Control Fact Sheet TC-2o Wet Pond/Basin in Section 5 of the New Development and Redevelopment Handbook regarding design criteria. Include in the catch basin a"turn-down"elbow or similar device to trap floatables.
References and Resources
California's Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html Clark County Storm Water Pollution Control Manual
http://www.co.clark.wa.us/pubworks/bmpman.pdf
King County Storm Water Pollution Control Manual http://dnr.metrokc.gov/wlr/dss/spcm.htm Santa Clara Valley Urban Runoff Pollution Prevention Program http://www.scvurppn.org The Storm Water Managers Resource Center http://www.stormwatercenter.net/ 4 of 4 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Parking/Storage Area Maintenance SC-43
Objectives,. .. ,; 1 '4'
Cover
+gte:vit fi, ,' M `{ i ;; ■ Contain
.4:tlY q 'c::f .• y. 1 .1,--; ,t. • x • Educate . ' ► .,.' :" ■ Reduce/Ninimize
$ '�• ■ Product Substitution
. .._ .,.,
. .. ..,„ . A , .. t, . . . . ,_ _.., , ____.,.. , . ,.
.::, _. -' - - .•L .4' ' c....11:7,,
4 Targeted Constituents
Description Sediment ✓
Parking lots and storage areas can contribute a number of Nutrients substances, such as trash, suspended solids,hydrocarbons, oil Trash ✓ and grease, and heavy metals that can enter receiving waters Metals ✓ through stormwater runoff or non-stormwater discharges. The Bacteria protocols in this fact sheet are intended to prevent or reduce the DI and Grease ✓ discharge of pollutants from parking/storage areas and include Organics ✓ using good housekeeping practices,following appropriate cleaning BMPs, and training employees.
Approach
The goal of this program is to ensure stormwater pollution prevention practices are considered when conducting activities on or around parking areas and storage areas to reduce potential for pollutant discharge to receiving waters. Successful implementation depends on effective training of employees on applicable BMPs and general pollution prevention strategies and objectives.
Pollution Prevention
• Encourage alternative designs and maintenance strategies for impervious parking lots. (See New Development and
Redevelopment BMP Handbook)
• Keep accurate maintenance logs to evaluate BMP
implementation. 4c S CIA
California
Stormwater
Quality
Association
January 2003 California Stormwater BMP Handbook 1 of 4 Industrial and Commercial
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SC-43 Parking/Storage Area Maintenance
Suggested Protocols
General
• Keep the parking and storage areas clean and orderly. Remove debris in a timely fashion. • Allow sheet runoff to flow into biofilters (vegetated strip and swale) and/or infiltration devices.
• Utilize sand filters or oleophilic collectors for oily waste in low quantities. • Arrange rooftop drains to prevent drainage directly onto paved surfaces. • Design lot to include semi-permeable hardscape.
• Discharge soapy water remaining in mop or wash buckets to the sanitary sewer through a sink,toilet, clean-out, or wash area with drain.
Controlling Litter
• Post"No Littering"signs and enforce anti-litter laws. • Provide an adequate number of litter receptacles.
• Clean out and cover litter receptacles frequently to prevent spillage. • Provide trash receptacles in parking lots to discourage litter. • Routinely sweep, shovel, and dispose of litter in the trash.
Surface Cleaning
• Use dry cleaning methods (e.g., sweeping,vacuuming)to prevent the discharge of pollutants into the stormwater conveyance system if possible.
• Establish frequency of public parking lot sweeping based on usage and field observations of waste accumulation.
• Sweep all parking lots at least once before the onset of the wet season. • Follow the procedures below if water is used to clean surfaces:
- Block the storm drain or contain runoff.
- Collect and pump wash water to the sanitary sewer or discharge to a pervious surface.
Do not allow wash water to enter storm drains.
- Dispose of parking lot sweeping debris and dirt at a landfill. • Follow the procedures below when cleaning heavy oily deposits:
- Clean oily spots with absorbent materials.
- Use a screen or filter fabric over inlet,then wash surfaces. 2 of 4 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Parking/Storage Area Maintenance SC-43
- Do not allow discharges to the storm drain.
- Vacuum/pump discharges to a tank or discharge to sanitary sewer. - Appropriately dispose of spilled materials and absorbents.
Surface Repair
• Preheat,transfer or load hot bituminous material away from storm drain inlets. • Apply concrete, asphalt, and seal coat during dry weather to prevent contamination from contacting stormwater runoff.
• Cover and seal nearby storm drain inlets where applicable(with waterproof material or mesh) and manholes before applying seal coat, slurry seal, etc. Leave covers in place until job is complete and all water from emulsified oil sealants has drained or evaporated. Clean any debris from these covered manholes and drains for proper disposal. • Use only as much water as necessary for dust control,to avoid runoff. • Catch drips from paving equipment that is not in use with pans or absorbent material placed under the machines. Dispose of collected material and absorbents properly.
Inspection
• Have designated personnel conduct inspections of parking facilities and stormwater conveyance systems associated with parking facilities on a regular basis. • Inspect cleaning equipment/sweepers for leaks on a regular basis.
Training
• Provide regular training to field employees and/or contractors regarding cleaning of paved areas and proper operation of equipment.
• Train employees and contractors in proper techniques for spill containment and cleanup.
Spill Response and Prevention
• Keep your Spill Prevention Control and Countermeasure(SPCC) Plan up-to-date. • Place a stockpile of spill cleanup materials where it will be readily accessible or at a central location.
• Clean up fluid spills immediately with absorbent rags or material. • Dispose of spilled material and absorbents properly.
Other Considerations
Limitations related to sweeping activities at large parking facilities may include high equipment costs,the need for sweeper operator training, and the inability of current sweeper technology to remove oil and grease.
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SC-43 Parking/Storage Area Maintenance
Requirements
Costs
Cleaning/sweeping costs can be quite large. Construction and maintenance of stormwater structural controls can be quite expensive as well.
Maintenance
■ Sweep parking lot regularly to minimize cleaning with water. ■ Clean out oil/water/sand separators regularly, especially after heavy storms. ■ Clean parking facilities regularly to prevent accumulated wastes and pollutants from being discharged into conveyance systems during rainy conditions.
Supplemental Information
Further Detail of the BMP
Surface Repair
Apply concrete, asphalt, and seal coat during dry weather to prevent contamination from contacting stormwater runoff. Where applicable, cover and seal nearby storm drain inlets (with waterproof material or mesh) and manholes before applying seal coat, slurry seal, etc. Leave covers in place until job is complete and all water from emulsified oil sealants has drained or evaporated. Clean any debris from these covered manholes and drains for proper disposal.
Only use only as much water as is necessary for dust control to avoid runoff.
References and Resources
California's Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html Clark County Storm Water Pollution Control Manual
http://www.co.clark.wa.us/pubworks/bmpman.pdf
King County Storm Water Pollution Control Manual http://dnr.metrokc.gov/wlr/dss/spcm.htm Pollution from Surface Cleaning Folder. 1996. Bay Area Stormwater Management Agencies Association (BASMAA). http://www.basmaa.org/
Oregon Association of Clean Water Agencies. Oregon Municipal Stormwater Toolbox for Maintenance Practices. June 1998.
Santa Clara Valley Urban Runoff Pollution Prevention Program http://www.scvurppp.org The Storm Water Managers Resource Center http://www.stormwatercenter.net/ 4 of 4 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Drainage System Maintenance SC-44
+' Objectives
• Cover
=41, may' +ES-
• Contain
116 •iA r _
} F ' - .1 • Educate
■ Reduce/Mnirrize
NEI 1 ,••• -
V
ll►
Description
As a consequence of its function,the stormwater conveyance Targeted Constituents system collects and transports urban runoff and stormwater that Sediment ✓ may contain certain pollutants. The protocols in this fact sheet Nutrients are intended to reduce pollutants reaching receiving waters Trash ✓ through proper conveyance system operation and maintenance. Metals Approach Bacteria
Oil and Grease
Pollution Prevention Organics
Maintain catch basins, stormwater inlets, and other stormwater conveyance structures on a regular basis to remove pollutants, reduce high pollutant concentrations during the first flush of storms,prevent clogging of the downstream conveyance system, restore catch basins'sediment trapping capacity, and ensure the system functions properly hydraulically to avoid flooding.
Suggested Protocols
Catch Basins/Inlet Structures
• Staff should regularly inspect facilities to ensure compliance with the following:
- Immediate repair of any deterioration threatening
structural integrity.
- Cleaning before the sump is 40%full. Catch basins
should be cleaned as frequently as needed to meet this
standard.
CA S QA
- Stenciling of catch basins and inlets (see SC34 Waste California Handling and Disposal). Stormwater
Quality
Association
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SC-44 Drainage System Maintenance
• Clean catch basins, storm drain inlets, and other conveyance structures before the wet season to remove sediments and debris accumulated during the summer. • Conduct inspections more frequently during the wet season for problem areas where sediment or trash accumulates more often. Clean and repair as needed. • Keep accurate logs of the number of catch basins cleaned. • Store wastes collected from cleaning activities of the drainage system in appropriate containers or temporary storage sites in a manner that prevents discharge to the storm drain.
• Dewater the wastes if necessary with outflow into the sanitary sewer if permitted. Water should be treated with an appropriate filtering device prior to discharge to the sanitary sewer. If discharge to the sanitary sewer is not allowed,water should be pumped or vacuumed to a tank and properly disposed. Do not dewater near a storm drain or stream.
Storm Drain Conveyance System
• Locate reaches of storm drain with deposit problems and develop a flushing schedule that keeps the pipe clear of excessive buildup.
• Collect and pump flushed effluent to the sanitary sewer for treatment whenever possible.
Pump Stations
• Clean all storm drain pump stations prior to the wet season to remove silt and trash. • Do not allow discharge to reach the storm drain system when cleaning a storm drain pump station or other facility.
• Conduct routine maintenance at each pump station.
• Inspect, clean, and repair as necessary all outlet structures prior to the wet season.
Open Channel
• Modify storm channel characteristics to improve channel hydraulics,increase pollutant removals, and enhance channel/creek aesthetic and habitat value. • Conduct channel modification/improvement in accordance with existing laws. Any person, government agency,or public utility proposing an activity that will change the natural (emphasis added) state of any river, stream, or lake in California, must enter into a Steam or Lake Alteration Agreement with the Department of Fish and Game. The developer-applicant should also contact local governments(city, county, special districts), other state agencies (SWRCB, RWQCB, Department of Forestry, Department of Water Resources), and Federal Corps of Engineers and USFWS.
Illicit Connections and Discharges
• Look for evidence of illegal discharges or illicit connections during routine maintenance of conveyance system and drainage structures:
- Is there evidence of spills such as paints, discoloring, etc? 2 of 6 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Drainage System Maintenance SC-44
- Are there any odors associated with the drainage system? - Record locations of apparent illegal discharges/illicit connections? - Track flows back to potential dischargers and conduct aboveground inspections. This can be done through visual inspection of upgradient manholes or alternate techniques including zinc chloride smoke testing,fluorometric dye testing,physical inspection testing, or television camera inspection.
- Eliminate the discharge once the origin of flow is established. • Stencil or demarcate storm drains,where applicable,to prevent illegal disposal of pollutants.
Storm drain inlets should have messages such as"Dump No Waste Drains to Stream" stenciled next to them to warn against ignorant or intentional dumping of pollutants into the storm drainage system.
• Refer to fact sheet SC-io Non-Stormwater Discharges.
Illegal Dumping
• Inspect and clean up hot spots and other storm drainage areas regularly where illegal dumping and disposal occurs.
• Establish a system for tracking incidents. The system should be designed to identify the following:
- Illegal dumping hot spots
- Types and quantities (in some cases) of wastes
- Patterns in time of occurrence(time of day/night, month, or year) - Mode of dumping(abandoned containers, "midnight dumping"from moving vehicles, direct dumping of materials, accidents/spills)
- Responsible parties
• Post"No Dumping"signs in problem areas with a phone number for reporting dumping and disposal. Signs should also indicate fines and penalties for illegal dumping. • Refer to fact sheet SC-io Non-Stormwater Discharges.
Training
• Train crews in proper maintenance activities, including record keeping and disposal. • Allow only properly trained individuals to handle hazardous materials/wastes. • Have staff involved in detection and removal of illicit connections trained in the following:
- OSHA-required Health and Safety Training(29 CFR 1910.120)plus annual refresher training(as needed).
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SC-44 Drainage System Maintenance
- OSHA Confined Space Entry training(Cal-OSHA Confined Space, Title 8 and Federal OSHA 29 CFR 1910.146).
- Procedural training(field screening, sampling, smoke/dye testing,TV inspection).
Spill Response and Prevention
• Investigate all reports of spills,leaks, and/or illegal dumping promptly. • Clean up all spills and leaks using"dry"methods (with absorbent materials and/or rags) or dig up,remove, and properly dispose of contaminated soil. • Refer to fact sheet SC-11 Spill Prevention, Control, and Cleanup.
Other Considerations(Limitations and Regulations)
• Clean-up activities may create a slight disturbance for local aquatic species. Access to items and material on private property may be limited. Trade-offs may exist between channel hydraulics and water quality/riparian habitat. If storm channels or basins are recognized as wetlands, many activities, including maintenance,may be subject to regulation and permitting.
• Storm drain flushing is most effective in small diameter pipes (36-inch diameter pipe or less, depending on water supply and sediment collection capacity). Other considerations associated with storm drain flushing may include the availability of a water source,finding a downstream area to collect sediments,liquid/sediment disposal, and prohibition against disposal of flushed effluent to sanitary sewer in some areas. • Regulations may include adoption of substantial penalties for illegal dumping and disposal. • Local municipal codes may include sections prohibiting discharge of soil, debris, refuse, hazardous wastes, and other pollutants into the storm drain system.
Requirements
Costs
• An aggressive catch basin cleaning program could require a significant capital and O&M budget.
• The elimination of illegal dumping is dependent on the availability, convenience, and cost of alternative means of disposal. The primary cost is for staff time. Cost depends on how aggressively a program is implemented. Other cost considerations for an illegal dumping program include:
- Purchase and installation of signs.
- Rental of vehicle(s)to haul illegally-disposed items and material to landfills. - Rental of heavy equipment to remove larger items (e.g.,car bodies)from channels. - Purchase of landfill space to dispose of illegally-dumped items and material. 4 of 6 California Stormwater BMP Handbook January 2003 Industrial and Commercial
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Drainage System Maintenance SC-44
• Methods used for illicit connection detection(smoke testing, dye testing,visual inspection, and flow monitoring) can be costly and time-consuming. Site-specific factors, such as the level of impervious area,the density and ages of buildings, and type of land use will determine the level of investigation necessary.
Maintenance
• Two-person teams may be required to clean catch basins with vactor trucks. • Teams of at least two people plus administrative personnel are required to identify illicit discharges, depending on the complexity of the storm sewer system. • Arrangements must be made for proper disposal of collected wastes. • Technical staff are required to detect and investigate illegal dumping violations.
Supplemental Information
Further Detail of the BMP
Storm Drain Flushing
Flushing is a common maintenance activity used to improve pipe hydraulics and to remove pollutants in storm drainage systems. Flushing may be designed to hydraulically convey accumulated material to strategic locations, such as an open channel, another point where flushing will be initiated, or the sanitary sewer and the treatment facilities,thus preventing resuspension and overflow of a portion of the solids during storm events. Flushing prevents "plug flow"discharges of concentrated pollutant loadings and sediments. Deposits can hinder the designed conveyance capacity of the storm drain system and potentially cause backwater conditions in severe cases of clogging.
Storm drain flushing usually takes place along segments of pipe with grades that are too flat to maintain adequate velocity to keep particles in suspension. An upstream manhole is selected to place an inflatable device that temporarily plugs the pipe. Further upstream,water is pumped into the line to create a flushing wave. When the upstream reach of pipe is sufficiently full to cause a flushing wave,the inflated device is rapidly deflated with the assistance of a vacuum pump,thereby releasing the backed up water and resulting in the cleaning of the storm drain segment.
To further reduce impacts of stormwater pollution,a second inflatable device placed well downstream may be used to recollect the water after the force of the flushing wave has dissipated. A pump may then be used to transfer the water and accumulated material to the sanitary sewer for treatment. In some cases, an interceptor structure may be more practical or required to recollect the flushed waters.
It has been found that cleansing efficiency of periodic flush waves is dependent upon flush volume,flush discharge rate, sewer slope, sewer length, sewer flow rate, sewer diameter, and population density. As a rule of thumb,the length of line to be flushed should not exceed 700 feet. At this maximum recommended length,the percent removal efficiency ranges between 65- 75%for organics and 55-65%for dry weather grit/inorganic material. The percent removal efficiency drops rapidly beyond that. Water is commonly supplied by a water truck,but fire hydrants can also supply water. To make the best use of water,it is recommended that reclaimed water be used or that fire hydrant line flushing coincide with storm sewer flushing.
January 2003 California Stormwater BMP Handbook 5 of 6 Industrial and Commercial
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SC-44 Drainage System Maintenance
References and Resources
California's Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html Clark County Storm Water Pollution Control Manual
http://www.co.clark.wa.us/pubworks/bmpman.pdf
Ferguson, B.K. 1991. Urban Stream Reclamation,p. 324-322,Journal of Soil and Water Conservation.
King County Storm Water Pollution Control Manual http://dnr.metrokc.gov/wlr/dss/spcm.htm Oregon Association of Clean Water Agencies. Oregon Municipal Stormwater Toolbox for Maintenance Practices. June 1998.
Santa Clara Valley Urban Runoff Pollution Prevention Program http://www.scvurppp.org The Storm Water Managers Resource Center http://www.stormwatercenter.net United States Environmental Protection Agency(USEPA). 2002. Pollution Prevention/Good Housekeeping for Municipal Operations Storm Drain System Cleaning. On line:
http://www.epa.gov/npdes/menuofbmps/poll 16.htm
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Housekeeping Practices SC-60
Description Objectives
Promote efficient and safe housekeeping practices(storage,use, ■ Cover and cleanup)when handling potentially harmful materials such • Contain as fertilizers,pesticides, cleaning solutions,paint products, • Educate automotive products,and swimming pool chemicals. Related information is provided in BMP fact sheets SC-xx Spill ■ Reduce?Minimize Prevention, Control&Cleanup and SC-34 Waste Handling& ■ Product Substitution Disposal.
Approach
Pollution Prevention
• Purchase only the amount of material that will be needed for foreseeable use. In most cases this will result in cost savings in both purchasing and disposal. See SC-63.Safer Alternative Products for additional information.
• Be aware of new products that may do the same job with less environmental risk and for less or the equivalent cost. Total Targeted Constituents cost must be used here;this includes purchase price, Sediment transportation costs,storage costs,use related costs, clean up Nutrients costs and disposal costs. Trash
Suggested Protocols Metals Q
General Bacteria
Oil and Grease
• Keep work sites clean and orderly. Remove debris in a timely Organics fashion. Sweep the area. Oxygen Demanding
• Dispose of wash water,sweepings,and sediments,properly. • Recycle or dispose of fluids properly.
• Establish a daily checklist of office,yard and plant areas to confirm cleanliness and adherence to proper storage and security.Specific employees should be assigned specific inspection responsibilities and given the authority to remedy any problems found.
• Post waste disposal charts in appropriate locations detailing for each waste its hazardous nature(poison,corrosive,
flammable),prohibitions on its disposal(dumpster, drain, sewer)and the recommended disposal method(recycle,
sewer,burn,storage,landfill).
• Summarize the chosen BMPs applicable to your operation and post them in appropriate conspicuous places.
ASQ
January 2003 California Stormwater BMP Handbook
Municipal
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SC-60 Housekeeping Practices
• Require a signed checklist from every user of any hazardous material detailing amount taken, amount used,amount returned and disposal of spent material. • Do a before audit of your site to establish baseline conditions and regular subsequent audits to note any changes and whether conditions are improving or deteriorating. • Keep records of water,air and solid waste quantities and quality tests and their disposition. • Maintain a mass balance of incoming,outgoing and on hand materials so you know when there are unknown losses that need to be tracked down and accounted for. • Use and reward employee suggestions related to BMPs,hazards,pollution reduction,work place safety, cost reduction,alternative materials and procedures,recycling and disposal. ■ Have,and review regularly,a contingency plan for spills,leaks,weather extremes etc.Make sure all employees know about it and what their role is so that it comes into force automatically.
'raining
■ Train all employees, management,office,yard,manufacturing,field and clerical in BMPs and pollution prevention and make them accountable.
• Train municipal employees who handle potentially harmful materials in good housekeeping practices.
■ Train personnel who use pesticides in the proper use of the pesticides. The California Department of Pesticide Regulation license pesticide dealers,certify pesticide applicators and conduct onsite inspections.
• Train employees and contractors in proper techniques for spill containment and cleanup.
The employee should have the tools and knowledge to immediately begin cleaning up a spill if one should occur.
Spill Response and Prevention
• Refer to SC-tt, Spill Prevention,Control&Cleanup.
• Keep your Spill Prevention Control and Countermeasure(SPCC)plant up-to-date, and implement accordingly.
• Have spill cleanup materials readily available and in a known location. • Cleanup spills immediately and use dry methods if possible. ■ Properly dispose of spill cleanup material.
Other Considerations
• There are no major limitations to this best management practice. ■ There are no regulatory requirements to this BMP. Existing regulations already require municipalities to properly store,use,and dispose of hazardous materials 2 of 3 California Stormwater BMP Handbook January 2003 Municipal
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Housekeeping Practices SC-60
Requirements
Costs
■ Minimal cost associated with this BMP. Implementation of good housekeeping practices may result in cost savings as these procedures may reduce the need for more costly BMPs.
Maintenance
■ Ongoing maintenance required to keep a clean site. Level of effort is a function of site size and type of activities_
Supplemental Information
Further Detail of the BMP
■ The California Integrated Waste Management Board's Recycling Hotline, 1-8ov-553-2962, provides information on household hazardous waste collection programs and facilities.
Examples
There are a number of communities with effective programs.The most pro-active include Santa Clara County and the City of Palo Alto,the City and County of San Francisco,and the Municipality of Metropolitan Seattle(Metro).
References and Resources
British Columbia Lake Stewardship Society. Best Management Practices to Protect Water Quality from Non-Point Source Pollution. March 2000.
littp:// www.nalms.org/bassibinplioine.1 it ml#bmp
King County Stormwater Pollution Control Manual- http://dnr.metrokc.gov/w1r/dss/spcm.htni , Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for Small Municipalities, Prepared by City of Monterey,City of Santa Cruz, California Coastal Commission,Monterey Bay National Marine Sanctuary,Association of Monterey Bay Area Governments,Woodward-Clyde,Central Coast Regional Water Quality Control Board. July, 1998, Revised by California Coastal Commission,February 2002.
Orange County Stormwater Program
http://www.ocwatersheds.com/stormwater/swp introduction.asp San Mateo STOPPP-( http://stoppp.tripod.coni/bmp.html)
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Landscape Maintenance SC-73
c
*- Objectives
,n►' ' • Contain
ff
I ■ Educate
_ ■ ReduceiMinimize
•
`i ■ Product Substitution
f
•
Targeted Constituents
Description Sediment
Landscape maintenance activities include vegetation removal; Nutrients herbicide and insecticide application;fertilizer application; Trash watering; and other gardening and lawn care practices. Metals Vegetation control typically involves a combination of chemical Bacteria (herbicide) application and mechanical methods. All of these Oil and Grease maintenance practices have the potential to contribute pollutants Organics to the storm drain system. The major objectives of this BMP are Oxygen Demanding I1 to minimize the discharge of pesticides,herbicides and fertilizers to the storm drain system and receiving waters; prevent the disposal of landscape waste into the storm drain system by collecting and properly disposing of clippings and cuttings,and educating employees and the public.
Approach
Pollution Prevention
■ Implement an integrated pest management(IPM)program.
IPM is a sustainable approach to managing pests by
combining biological, cultural,physical, and chemical tools. ■ Choose low water using flowers,trees,shrubs,and
groundcover.
• Consider alternative landscaping techniques such as naturescaping and xeriscaping. --
• Conduct appropriate maintenance(i.e.properly timed
fertilizing,weeding,pest control,and pruning)to help
preserve the landscapes water efficiency. A S Q ■ January 2003 California Stormwater BMP Handbook 1 of 6 Municipal
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SC-73 Landscape Maintenance
• Consider grass cycling(grass cycling is the natural recycling of grass by leaving the clippings on the lawn when mowing. Grass clippings decompose quickly and release valuable nutrients back into the lawn).
Suggested Protocols
Mowing, Trinnning, and Weeding
• Whenever possible use mechanical methods of vegetation removal(e.g mowing with tractor- type or push mowers,hand cutting with gas or electric powered weed trimmers)rather than applying herbicides. Use hand weeding where practical.
• Avoid loosening the soil when conducting mechanical or manual weed control,this could lead to erosion. Use mulch or other erosion control measures when soils are exposed. ■ Performing mowing at optimal times. Mowing should not be performed if significant rain events are predicted.
• Mulching mowers may be recommended for certain flat areas. Other techniques may be employed to minimize mowing such as selective vegetative planting using low maintenance grasses and shrubs.
■ Collect lawn and garden clippings,pruning waste,tree trimmings,and weeds. Chip if necessary,and compost or dispose of at a landfill(see waste management section of this fact sheet).
■ Place temporarily stockpiled material away from watercourses,and berm or cover stockpiles to prevent material releases to storm drains.
Planting
• Determine existing native vegetation features (location,species,size,function,importance) and consider the feasibility of protecting them. Consider elements such as their effect on drainage and erosion,hardiness,maintenance requirements,and possible conflicts between preserving vegetation and the resulting maintenance needs. ▪ Retain and/or plant selected native vegetation whose features are determined to be beneficial,where feasible. Native vegetation usually requires less maintenance(e.g., irrigation,fertilizer)than planting new vegetation.
■ Consider using low water use groundcovers when planting or replanting.
Waste Management
• Compost leaves, sticks,or other collected vegetation or dispose of at a permitted landfill. Do not dispose of collected vegetation into waterways or storm drainage systems. • Place temporarily stockpiled material away from watercourses and storm drain inlets,and berm or cover stockpiles to prevent material releases to the storm drain system. ■ Reduce the use of high nitrogen fertilizers that produce excess growth requiring more frequent mowing or trimming.
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Landscape Maintenance SC-73
▪ Avoid landscape wastes in and around storm drain inlets by either using bagging equipment or by manually picking up the material.
Irrigation
• Where practical,use automatic timers to minimize runoff. • Use popup sprinkler heads in areas with a lot of activity or where there is a chance the pipes may be broken_ Consider the use of mechanisms that reduce water flow to sprinkler heads if broken.
• Ensure that there is no runoff from the landscaped area(s)if re-claimed water is used for irrigation.
• If bailing of muddy water is required(e.g.when repairing a water line leak),do not put it in the storm drain;pour over landscaped areas.
• Irrigate slowly or pulse irrigate to prevent runoff and then only irrigate as much as is needed.
• Apply water at rates that do not exceed the infiltration rate of the soil.
Fertilizer and Pesticide Management
• Utilize a comprehensive management system that incorporates integrated pest management (IPM)techniques. There are many methods and types of IPM,including the following:
- Mulching can be used to prevent weeds where turf is absent,fencing installed to keep rodents out,and netting used to keep birds and insects away from leaves and fruit. - Visible insects can be removed by hand(with gloves or tweezers)and placed in soapy water or vegetable oil. Alternatively,insects can be sprayed off the plant with water or in some cases vacuumed off of larger plants.
- Store-bought traps, such as species-specific,pheromone-based traps or colored sticky cards,can be used.
- Slugs can be trapped in small cups filled with beer that are set in the ground so the slugs can get in easily.
- In cases where microscopic parasites,such as bacteria and fungi,are causing damage to plants,the affected plant material can be removed and disposed of(pruning equipment should be disinfected with bleach to prevent spreading the disease organism). - Small mammals and birds can be excluded using fences, netting, tree trunk guards. - Beneficial organisms, such as bats,birds,green lacewings,ladybugs,praying mantis, ground beetles,parasitic nematodes,trichogramma wasps,seed head weevils,and spiders that prey on detrimental pest species can be promoted. a Follow all federal, state, and local laws and regulations governing the use,storage, and disposal of fertilizers and pesticides and training of applicators and pest control advisors.
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SC-73 Landscape Maintenance
• Use pesticides only if there is an actual pest problem (not on a regular preventative schedule).
• Do not use pesticides if rain is expected. Apply pesticides only when wind speeds are low (less than 5 mph).
• Do not mix or prepare pesticides for application near storm drains. • Prepare the minimum amount of pesticide needed for the job and use the lowest rate that will effectively control the pest.
• Employ techniques to minimize off-target application(e.g.spray drift)of pesticides, including consideration of alternative application techniques. ■ Fertilizers should be worked into the soil rather than dumped or broadcast onto the surface. ▪ Calibrate fertilizer and pesticide application equipment to avoid excessive application. • Periodically test soils for determining proper fertilizer use. ■ Sweep pavement and sidewalk if fertilizer is spilled on these surfaces before applying irrigation water.
• Purchase only the amount of pesticide that you can reasonably use in a given time period (month or year depending on the product).
• Triple rinse containers,and use rinse water as product. Dispose of unused pesticide as hazardous waste.
■ Dispose of empty pesticide containers according to the instructions on the container label.
Inspection
• Inspect irrigation system periodically to ensure that the right amount of water is being applied and that excessive runoff is not occurring. Minimize excess watering,and repair leaks in the irrigation system as soon as they are observed. a Inspect pesticide/fertilizer equipment and transportation vehicles daily.
Training
• Educate and train employees on use of pesticides and in pesticide application techniques to prevent pollution. Pesticide application must be under the supervision of a California qualified pesticide applicator.
• Train/encourage municipal maintenance crews to use IPM techniques for managing public green areas.
a Annually train employees within departments responsible for pesticide application on the appropriate portions of the agency's IPM Policy,SOPs,and BMPs,and the latest IPM techniques.
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Landscape Maintenance SC-73
• Employees who are not authorized and trained to apply pesticides should be periodically(at least annually)informed that they cannot use over-the-counter pesticides in or around the workplace.
• Use a training log or similar method to document training.
Spill Response and Prevention
• Refer to SC-xi,Spill Prevention,Control&Cleanup
• Have spill cleanup materials readily available and in a know in location a Cleanup spills immediately and use dry methods if possible. • Properly dispose of spill cleanup material.
Other Considerations
a The Federal Pesticide, Fungicide,and Rodenticide Act and California Title 3,Division 6, Pesticides and Pest Control Operations place strict controls over pesticide application and handling and specify training,annual refresher,and testing requirements. The regulations generally cover: a list of approved pesticides and selected uses,updated regularly;general application information; equipment use and maintenance procedures; and record keeping.
The California Department of Pesticide Regulations and the County Agricultural Commission coordinate and maintain the licensing and certification programs. All public agency employees who apply pesticides and herbicides in"agricultural use"areas such as parks,golf courses,rights-of-way and recreation areas should be properly certified in accordance with state regulations. Contracts for landscape maintenance should include similar requirements.
a All employees who handle pesticides should be familiar with the most recent material safety data sheet (MSDS)files.
• Municipalities do not have the authority to regulate the use of pesticides by school districts, however the California Healthy Schools Act of 2000(AB 226o)has imposed requirements on California school districts regarding pesticide use in schools. Posting of notification prior to the application of pesticides is now required, and IPM is stated as the preferred approach to pest management in schools.
Requirements
Costs
Additional training of municipal employees will be required to address IPM techniques and BMPs. IPM methods will likely increase labor cost for pest control which may be offset by lower chemical costs.
Maintenance
Not applicable
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SC-73 Landscape Maintenance
Supplemental Information
Further Detail of the BMP
Waste Management
Composting is one of the better disposal alternatives if locally available. Most municipalities either have or are planning yard waste composting facilities as a means of reducing the amount of waste going to the landfill. Lawn clippings from municipal maintenance programs as well as private sources would probably be compatible with most composting facilities Contractors and Other Pesticide Users
Municipal agencies should develop and implement a process to ensure that any contractor employed to conduct pest control and pesticide application on municipal property engages in pest control methods consistent with the IPM Policy adopted by the agency. Specifically, municipalities should require contractors to follow the agency's IPM policy, SOPs,and BMPs; provide evidence to the agency of having received training on current IPM techniques when feasible; provide documentation of pesticide use on agency property to the agency in a timely manner.
References and Resources
King County Stormwater Pollution Control Manual. Best Management Practices for Businesses. 1995. King County Surface Water Management. July. On-line:
lattp://dnr.metroke.gov/w1r/dss/spcm.htm
Los Angeles County Stormwater Quality Model Programs. Public Agency Activities http://ladpw.org/w m d/npdes/model links.cfm
Model Urban Runoff Program:A How-To Guide for Developing Urban Runoff Programs for Small Municipalities. Prepared by City of Monterey, City of Santa Cruz,California Coastal Commission,Monterey Bay National Marine Sanctuary,Association of Monterey Bay Area Governments,Woodward-Clyde,Central Coast Regional Water Quality Control Board. July. 1998.
Orange County Stormwater Program
http://www.ocwatersheds.com/StormWater/swp introduction.asp Santa Clara Valley Urban Runoff Pollution Prevention Program. 1997 Urban Runoff Management Plan. September 1997, updated October 2000.
United States Environmental Protection Agency(USEPA). 2002. Pollution Prevention/Good Housekeeping for Municipal Operations Landscaping and Lawn Care. Office of Water. Office of Wastewater Management. On-line: http://www.epa.govLnpdes/menuofbmps/poll 8.htm 6 of 6 California Stormwater BMP Handbook January 2003 Municipal
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Site Design & Landscape Planning SD- 10
-- ,7 .,.� ._--
E r• ••gr"' tir:.f 0711.ti -j Design Objectives ' c e d
0 Maximize Infiltration
fir., I" .. ....
-. • 0 Provide Retention
-
; 0 Slow Runoff
, ?' '` i IVinimize Impervious Land
_. .. Coverage
3 . :, , =°•`N:ea Prohibit Dumping of Improper Materials
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Contain Pollutants
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Description
Each project site possesses unique topographic,hydrologic, and vegetative features, some of which are more suitable for development than others. Integrating and incorporating appropriate landscape planning methodologies into the project design is the most effective action that can be done to minimize surface and groundwater contamination from stormwater.
Approach
Landscape planning should couple consideration of land suitability for urban uses with consideration of community goals and projected growth. Project plan designs should conserve natural areas to the extent possible, maximize natural water storage and infiltration opportunities, and protect slopes and channels.
Suitable Applications
Appropriate applications include residential, commercial and industrial areas planned for development or redevelopment.
Design Considerations
Design requirements for site design and landscapes planning should conform to applicable standards and specifications of agencies with jurisdiction and be consistent with applicable General Plan and Local Area Plan policies.
ASQ.
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SD- 10 Site Design & Landscape Planning
Designing New Installations
Begin the development of a plan for the landscape unit with attention to the following general principles:
• Formulate the plan on the basis of clearly articulated community goals. Carefully identify conflicts and choices between retaining and protecting desired resources and community growth.
• Map and assess land suitability for urban uses. Include the following landscape features in the assessment: wooded land, open unwooded land, steep slopes, erosion-prone soils, foundation suitability, soil suitability for waste disposal, aquifers, aquifer recharge areas, wetlands,floodplains, surface waters, agricultural lands, and various categories of urban land use. When appropriate,the assessment can highlight outstanding local or regional resources that the community determines should be protected(e.g., a scenic area, recreational area,threatened species habitat,farmland,fish run). Mapping and assessment should recognize not only these resources but also additional areas needed for their sustenance.
Project plan designs should conserve natural areas to the extent possible, maximize natural water storage and infiltration opportunities, and protect slopes and channels.
Conserve Natural Areas during Landscape Planning
If applicable,the following items are required and must be implemented in the site layout during the subdivision design and approval process, consistent with applicable General Plan and Local Area Plan policies:
• Cluster development on least-sensitive portions of a site while leaving the remaining land in a natural undisturbed condition.
• Limit clearing and grading of native vegetation at a site to the minimum amount needed to build lots, allow access, and provide fire protection.
• Maximize trees and other vegetation at each site by planting additional vegetation, clustering tree areas, and promoting the use of native and/or drought tolerant plants. • Promote natural vegetation by using parking lot islands and other landscaped areas. • Preserve riparian areas and wetlands.
Maximize Natural Water Storage and Infiltration Opportunities Within the Landscape Unit • Promote the conservation of forest cover. Building on land that is already deforested affects basin hydrology to a lesser extent than converting forested land. Loss of forest cover reduces interception storage, detention in the organic forest floor layer, and water losses by evapotranspiration, resulting in large peak runoff increases and either their negative effects or the expense of countering them with structural solutions. • Maintain natural storage reservoirs and drainage corridors, including depressions, areas of permeable soils, swales, and intermittent streams. Develop and implement policies and 2 of 4 California Stormwater BMP Handbook January 2003 New Development and Redevelopment
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Site Design & Landscape Planning SD- 10
regulations to discourage the clearing,filling, and channelization of these features. Utilize them in drainage networks in preference to pipes, culverts, and engineered ditches. • Evaluating infiltration opportunities by referring to the stormwater management manual for the jurisdiction and pay particular attention to the selection criteria for avoiding groundwater contamination,poor soils, and hydrogeological conditions that cause these facilities to fail. If necessary,locate developments with large amounts of impervious surfaces or a potential to produce relatively contaminated runoff away from groundwater recharge areas.
Protection of Slopes and Channels during Landscape Design • Convey runoff safely from the tops of slopes.
• Avoid disturbing steep or unstable slopes.
• Avoid disturbing natural channels.
• Stabilize disturbed slopes as quickly as possible.
• Vegetate slopes with native or drought tolerant vegetation. • Control and treat flows in landscaping and/or other controls prior to reaching existing natural drainage systems.
• Stabilize temporary and permanent channel crossings as quickly as possible, and ensure that increases in run-off velocity and frequency caused by the project do not erode the channel. • Install energy dissipaters, such as riprap, at the outlets of new storm drains, culverts, conduits,or channels that enter unlined channels in accordance with applicable specifications to minimize erosion. Energy dissipaters shall be installed in such a way as to minimize impacts to receiving waters.
• Line on-site conveyance channels where appropriate,to reduce erosion caused by increased flow velocity due to increases in tributary impervious area. The first choice for linings should be grass or some other vegetative surface, since these materials not only reduce runoff velocities,but also provide water quality benefits from filtration and infiltration. If velocities in the channel are high enough to erode grass or other vegetative linings,riprap, concrete, soil cement, or geo-grid stabilization are other alternatives. • Consider other design principles that are comparable and equally effective.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP,WQMP, etc.) define"redevelopment"in terms of amounts of additional impervious area, increases in gross floor area and/or exterior construction, and land disturbing activities with structural or impervious surfaces. The definition of"redevelopment"must be consulted to determine whether or not the requirements for new development apply to areas intended for redevelopment. If the definition applies,the steps outlined under"designing new installations" above should be followed.
January 2003 California Stormwater BMP Handbook 3 of 4 New Development and Redevelopment
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SD- 10 Site Design & Landscape Planning
Redevelopment may present significant opportunity to add features which had not previously been implemented. Examples include incorporation of depressions, areas of permeable soils, and swales in newly redeveloped areas. While some site constraints may exist due to the status of already existing infrastructure, opportunities should not be missed to maximize infiltration, slow runoff, reduce impervious areas, disconnect directly connected impervious areas.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County Department of Public Works,May 2002.
Stormwater Management Manual for Western Washington,Washington State Department of Ecology,August 2001.
Model Standard Urban Storm Water Mitigation Plan(SUSMP)for San Diego County, Port of San Diego, and Cities in San Diego County, February 14, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures, July 2002.
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Roof Runoff Controls SD- 11
Design Objectives
ION _ . : '" 0 Maximize Infiltration
•
• Q Provide Retention
•
- • w tV CQ Slow Runoff
; _ • } ' '; >;r4 �+�' Mninize Impervious Land ' •
• ;. c • _ Coverage
+ -` �'`+' 'f ' - Prohibit Dumping of Improper -; . ,. .. µ�,, , Materials
•
ry rl• _ - - . Q Contain Pollutants
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Collect and Convey
Rain Garden
Description
Various roof runoff controls are available to address stormwater that drains off rooftops. The objective is to reduce the total volume and rate of runoff from individual lots, and retain the pollutants on site that may be picked up from roofing materials and atmospheric deposition. Roof runoff controls consist of directing the roof runoff away from paved areas and mitigating flow to the storm drain system through one of several general approaches: cisterns or rain barrels; dry wells or infiltration trenches; pop-up emitters, and foundation planting. The first three approaches require the roof runoff to be contained in a gutter and downspout system. Foundation planting provides a vegetated strip under the drip line of the roof.
Approach
Design of individual lots for single-family homes as well as lots for higher density residential and commercial structures should consider site design provisions for containing and infiltrating roof runoff or directing roof runoff to vegetative swales or buffer areas. Retained water can be reused for watering gardens,lawns, and trees. Benefits to the environment include reduced demand for potable water used for irrigation,improved stormwater quality,increased groundwater recharge, decreased runoff volume and peak flows, and decreased flooding potential.
Suitable Applications
Appropriate applications include residential, commercial and industrial areas planned for development or redevelopment.
Design Considerations
Designing New Installations
Cisterns or Rain Barrels
One method of addressing roof runoff is to direct roof downspouts to cisterns or rain barrels. A cistern is an above ground storage vessel with either a manually operated valve or a permanently open outlet. Roof runoff is temporarily stored and then released A S Q A for irrigation or infiltration between storms. The number of rain CALIFORNIA FTOIIM W:\'FFF
QLALITY
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SD- 11 Roof Runoff Controls
barrels needed is a function of the rooftop area. Some low impact developers recommend that every house have at least 2 rain barrels,with a minimum storage capacity of woo liters. Roof barrels serve several purposes including mitigating the first flush from the roof which has a high volume, amount of contaminants, and thermal load. Several types of rain barrels are commercially available. Consideration must be given to selecting rain barrels that are vector proof and childproof. In addition, some barrels are designed with a bypass valve that filters out grit and other contaminants and routes overflow to a soak-away pit or rain garden.
If the cistern has an operable valve,the valve can be closed to store stormwater for irrigation or infiltration between storms. This system requires continual monitoring by the resident or grounds crews,but provides greater flexibility in water storage and metering. If a cistern is provided with an operable valve and water is stored inside for long periods,the cistern must be covered to prevent mosquitoes from breeding.
A cistern system with a permanently open outlet can also provide for metering stormwater runoff. If the cistern outlet is significantly smaller than the size of the downspout inlet(say 1/4 to 1/2 inch diameter), runoff will build up inside the cistern during storms, and will empty out slowly after peak intensities subside. This is a feasible way to mitigate the peak flow increases caused by rooftop impervious land coverage, especially for the frequent, small storms.
Dry wells and Infiltration Trenches
Roof downspouts can be directed to dry wells or infiltration trenches. A dry well is constructed by excavating a hole in the ground and filling it with an open graded aggregate, and allowing the water to fill the dry well and infiltrate after the storm event. An underground connection from the downspout conveys water into the dry well, allowing it to be stored in the voids. To minimize sedimentation from lateral soil movement,the sides and top of the stone storage matrix can be wrapped in a permeable filter fabric,though the bottom may remain open. A perforated observation pipe can be inserted vertically into the dry well to allow for inspection and maintenance.
In practice, dry wells receiving runoff from single roof downspouts have been successful over long periods because they contain very little sediment. They must be sized according to the amount of rooftop runoff received,but are typically 4 to 5 feet square, and 2 to 3 feet deep,with a minimum of i-foot soil cover over the top (maximum depth of io feet).
To protect the foundation, dry wells must be set away from the building at least io feet. They must be installed in solids that accommodate infiltration. In poorly drained soils, dry wells have very limited feasibility.
Infiltration trenches function in a similar manner and would be particularly effective for larger roof areas. An infiltration trench is a long, narrow, rock-filled trench with no outlet that receives stormwater runoff. These are described under Treatment Controls.
Pop-up Drainage Emitter
Roof downspouts can be directed to an underground pipe that daylights some distance from the building foundation,releasing the roof runoff through a pop-up emitter. Similar to a pop-up irrigation head,the emitter only opens when there is flow from the roof. The emitter remains flush to the ground during dry periods,for ease of lawn or landscape maintenance. 2 of 3 California Stormwater BMP Handbook January 2003 New Development and Redevelopment
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Roof Runoff Controls SD- 11
Foundation Planting
Landscape planting can be provided around the base to allow increased opportunities for stormwater infiltration and protect the soil from erosion caused by concentrated sheet flow coming off the roof. Foundation plantings can reduce the physical impact of water on the soil and provide a subsurface matrix of roots that encourage infiltration. These plantings must be sturdy enough to tolerate the heavy runoff sheet flows,and periodic soil saturation.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP,WQMP, etc.) define"redevelopment"in terms of amounts of additional impervious area,increases in gross floor area and/or exterior construction, and land disturbing activities with structural or impervious surfaces. The definition of"redevelopment"must be consulted to determine whether or not the requirements for new development apply to areas intended for redevelopment. If the definition applies,the steps outlined under"designing new installations" above should be followed.
Supplemental Information
Examples
• City of Ottawa's Water Links Surface—Water Quality Protection Program • City of Toronto Downspout Disconnection Program
• City of Boston,MA, Rain Barrel Demonstration Program Other Resources
Hager,Marty Catherine, Stormwater, "Low-Impact Development",January/February 2003. www.stormh2o.com
Low Impact Urban Design Tools, Low Impact Development Design Center, Beltsville,MD. www.lid-stormwater.net
Start at the Source, Bay Area Stormwater Management Agencies Association, 1999 Edition January 2003 California Stormwater BMP Handbook 3 of 3 New Development and Redevelopment
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Efficient Irrigation SD- 12
, Design Objectives
_ - •.m 0 Maximize Infiltration
. }. _ Er Provide Retention
�THR Q Slow Runoff
•
Mnirrize Impervious Land
' Coverage
Prohibit Durrping of Improper
Materials
__- Contain Pollutants
Celled and Convey
Nina
Description
Irrigation water provided to landscaped areas may result in excess irrigation water being conveyed into stormwater drainage systems.
Approach
Project plan designs for development and redevelopment should include application methods of irrigation water that minimize runoff of excess irrigation water into the stormwater conveyance system.
Suitable Applications
Appropriate applications include residential, commercial and industrial areas planned for development or redevelopment. (Detached residential single-family homes are typically excluded from this requirement.)
Design Considerations
Designing New Installations
The following methods to reduce excessive irrigation runoff should be considered, and incorporated and implemented where determined applicable and feasible by the Permittee:
• Employ rain-triggered shutoff devices to prevent irrigation after precipitation. • Design irrigation systems to each landscape area's specific water requirements. • Include design featuring flow reducers or shutoff valves triggered by a pressure drop to control water loss in the event of broken sprinkler heads or lines.
• Implement landscape plans consistent with County or City water conservation resolutions,which may include provision of water sensors,programmable irrigation times (for short cycles), etc. A S Q
CALIFORNIA STORMW:1TFF
QLA LIT\AFS0
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SD- 12 Efficient Irrigation
• Design timing and application methods of irrigation water to minimize the runoff of excess irrigation water into the storm water drainage system.
• Group plants with similar water requirements in order to reduce excess irrigation runoff and promote surface filtration. Choose plants with low irrigation requirements (for example, native or drought tolerant species). Consider design features such as:
- Using mulches (such as wood chips or bar)in planter areas without ground cover to minimize sediment in runoff
- Installing appropriate plant materials for the location,in accordance with amount of sunlight and climate, and use native plant materials where possible and/or as recommended by the landscape architect
- Leaving a vegetative barrier along the property boundary and interior watercourses,to act as a pollutant filter,where appropriate and feasible - Choosing plants that minimize or eliminate the use of fertilizer or pesticides to sustain growth
• Employ other comparable, equally effective methods to reduce irrigation water runoff.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP,WQMP, etc.) define"redevelopment"in terms of amounts of additional impervious area,increases in gross floor area and/or exterior construction, and land disturbing activities with structural or impervious surfaces. The definition of"redevelopment"must be consulted to determine whether or not the requirements for new development apply to areas intended for redevelopment. If the definition applies,the steps outlined under"designing new installations" above should be followed.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County Department of Public Works,May 2002.
Model Standard Urban Storm Water Mitigation Plan(SUSMP)for San Diego County, Port of San Diego, and Cities in San Diego County, February 1.4, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures, July 2002.
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Storm Drain Signage SD- 13
Design Objectives
Maximize Infiltration
_10112&-
Provide Retention
Slow Runoff
Mnirrize Impervious Land
--» Coverage
- _-� -►�r� ,►M- Q Prohibit Dumping of Improper • Materials
Contain Pollutants
Celled and Convey
Description
Waste materials dumped into storm drain inlets can have severe impacts on receiving and ground waters. Posting notices regarding discharge prohibitions at storm drain inlets can prevent waste dumping. Storm drain signs and stencils are highly visible source controls that are typically placed directly adjacent to storm drain inlets.
Approach
The stencil or affixed sign contains a brief statement that prohibits dumping of improper materials into the urban runoff conveyance system. Storm drain messages have become a popular method of alerting the public about the effects of and the prohibitions against waste disposal.
Suitable Applications
Stencils and signs alert the public to the destination of pollutants discharged to the storm drain.
Signs are appropriate in residential, commercial, and industrial areas, as well as any other area where contributions or dumping to storm drains is likely.
Design Considerations
Storm drain message markers or placards are recommended at all storm drain inlets within the boundary of a development project. The marker should be placed in clear sight facing toward anyone approaching the inlet from either side. All storm drain inlet locations should be identified on the development site map.
Designing New Installations
The following methods should be considered for inclusion in the project design and show on project plans:
• Provide stenciling or labeling of all storm drain inlets and catch basins, constructed or modified,within the project area with prohibitive language. Examples include"NO DUMPING ASQ CALIFORNIA STORMW:1TFF
QLA LIT\AFS0•
January 2003 California Stormwater BMP Handbook 1 of 2 New Development and Redevelopment
www.cabmphandbooks.com Page 1071 of 1374
SD- 13 Storm Drain Signage
— DRAINS TO OCEAN" and/or other graphical icons to discourage illegal dumping. • Post signs with prohibitive language and/or graphical icons,which prohibit illegal dumping at public access points along channels and creeks within the project area.
Note-Some local agencies have approved specific signage and/or storm drain message placards for use. Consult local agency stormwater staff to determine specific requirements for placard types and methods of application.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP,WQMP, etc.) define"redevelopment"in terms of amounts of additional impervious area, increases in gross floor area and/or exterior construction, and land disturbing activities with structural or impervious surfaces. If the project meets the definition of"redevelopment",then the requirements stated under" designing new installations"above should be included in all project design plans.
Additional Information
Maintenance Considerations
• Legibility of markers and signs should be maintained. If required by the agency with jurisdiction over the project,the owner/operator or homeowner's association should enter into a maintenance agreement with the agency or record a deed restriction upon the property title to maintain the legibility of placards or signs.
Placement
• Signage on top of curbs tends to weather and fade.
• Signage on face of curbs tends to be worn by contact with vehicle tires and sweeper brooms.
Supplemental Information
Examples
• Most MS4 programs have storm drain signage programs. Some MS4 programs will provide stencils, or arrange for volunteers to stencil storm drains as part of their outreach program.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County Department of Public Works,May 2002.
Model Standard Urban Storm Water Mitigation Plan(SUSMP)for San Diego County, Port of San Diego, and Cities in San Diego County, February 14, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures, July 2002.
2 of 2 California Stormwater BMP Handbook January 2003 New Development and Redevelopment
www.cabmphandbooks.com Page 1072 of 1374
LANDSCAPING STANDARDS—19.28
19.28.110 EROSION CONTROL LANDSCAPING
Landscaping for the purpose of erosion control shall be in compliance with the standards outlined in Chapter 15 of the Municipal Code.
19.28.120 WATER EFFICIENT LANDSCAPING STANDARDS
(MC 1368 02/08/12)
1. PURPOSE AND INTENT
A. The purpose of this Chapter is to:
(1) Promote the aesthetic and recreational values of landscapes, while recognizing the need to invest water resources as efficiently as possible; (2) Establish a structure for planning, designing, installing and maintaining water efficient landscapes in new construction and rehabilitated projects; (3) Establish provisions for water management practices and water waste prevention in the irrigation of existing landscapes;
(4) Implement water quality management practices that minimize storm water and irrigation runoff,to achieve on-site filtration and groundwater recharge; (5) Promote and encourage the use of low water use plants in landscapes; (6) Minimize the use of cool season turf;
(7) Promote conservation of potable water by encouraging the use of recycled water and water-conserving technology in landscape irrigation; and (8) Promote public education about water conservation and water efficient landscape irrigation.
B. The intent of this Chapter is to implement water efficient landscape regulations at least as effective as the state model ordinance adopted pursuant to California Government Code Section 65595.
2. APPLICABILITY
After January 1,2010,the provisions of this Chapter shall apply as follows:
A. All provisions of this chapter for planning, design, installation and management of new landscapes shall apply to the following new construction and rehabilitation landscape projects normally subject to building or landscaping plan review and permits. (1) Public agency projects and private development projects with a landscape area equal to or greater than 2,500 square feet;
III-19.28-10 Oct.2019
LANDSCAPING STANDARDS—19.28
(2) Developer-installed single-family and multi-family residential projects with a landscape area equal to or greater than 2,500 square feet in the aggregate; (3) Homeowner-installed and/or homeowner-hired single-family and multifamily residential projects with a total project landscape area equal to or greater than 5,000 square feet.
B. Limited applicability. Existing landscapes, cemeteries and certain Special Landscape Areas are exempt from the provisions of this Chapter as follows:
(1) Existing landscapes installed before January 1, 2010 and exceeding one acre in area are subject only to water waste prevention and efficient irrigation requirements of Sections 19.28.110(12)and 19.28.110(13).
(2) New cemeteries or cemetery expansion projects exceeding 2,500 square feet in landscape area shall be subject to the Water Efficient Landscape worksheet requirement and the irrigation analysis and maintenance requirements of Section
19.28.110(9)and Section 19.28.110(10).
(3) New development or rehabilitation of landscapes including Special Landscape Areas (SLAs), such as edible landscapes, landscapes irrigated with recycled water, and active parks or sport field landscaping shall be subject to the provisions of this Ordinance, except that the Maximum Applies Water Allowance (MAWA) shall be adjusted to provide for adequate irrigation of SLAs.
C. Exemptions. The provisions of this Chapter shall not apply to the following exempt landscapes:
(1) Registered local, state or federal historic sites; (2) Ecological restoration projects that do not require permanent irrigation systems; (3) Mined land restoration projects that do not require permanent irrigation systems; (4) Botanical gardens and arboretums open to the public.
3. LANDSCAPE DESIGN STANDARDS AND PLANNING GUIDELINES For the efficient use of water, landscapes shall be carefully designed and planned to thrive in local soil and climatic conditions and to suit the intended function of the project. The following design guidelines shall also be considered in landscape planning:
A. Plant Selection:
(1) Native plants and drought-tolerant species are encouraged to promote low maintenance,water efficient landscapes.
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LANDSCAPING STANDARDS—19.28
(2) Any plant may be used in the landscape, provided that the EAWU (estimated annual applied water use) does not exceed the MAWA (maximum annual applied water allowance).
(3) Plants with similar water use requirements shall be grouped together in "hydrozones"wherever possible.
(4) Turf areas should be minimal, limited mainly to active recreation areas and small lawns. Where turf is used, it should not be planted on slopes greater than 4:1, and warm season varieties are preferred.
(5) Fire resistant plant species and fuel modification requirements shall be top priority for landscape design in high fire hazard areas.
(6) Invasive plant species should be avoided, especially near natural areas, fuel modification zones,parks and water bodies.
(7) The use of mulch is encouraged to retain moisture. (8) Plant placement shall be planned to create shade in summer and permit solar gain in winter.
(9) Plant size and root characteristics at maturity should be considered in plant selection and placement,to avoid damage to property or infrastructure.
B. Water Features:
(1) Recirculating water systems shall be used for all decorative water features. (2) If available, recycled water should be used in decorative water features, except pools and spas.
(3) The surface area of a water feature shall be included in MAWA calculation with an evaporation rate equivalent to that of a high water use plant. (4) Pool and spa covers are highly recommended.
C. Content Requirements of Landscape Design Plans:
(1) Each hydrozone shall be identified as a "low", "moderate", "high", or "mixed" water use zone.
(2) Landscape areas with unique water budget considerations, such as recreation areas, areas dedicated to edible landscapes, and areas to be irrigated with recycled water shall be delineated.
(3) Areas planned for soil amendments, mulch application, surface water features, and hardscapes (pervious and impervious) shall be delineated with applicable notes regarding installation and design.
III-19.28-12 Oct.2019
INITIAL STIIOYIMITISATED NEGATIVE DECLARATION SAN ANTONI❑WATER COMPANY HEADQUARTERS PROTECT ` s A AUGUST 2025 UPLAND,CALIFORNIA rL.
APPENDIX F
NOISE AND VIBRATION IMPACT ANALYSIS
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L A SAN ANTONIO WATER COMPANY HEADQUARTERS PROJECT INITIAL STUDY/MITIGATED NEGATIVE DECLARATION r`. UPLAND,CALIFORNIA AUGUST 2025
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L SA
CARLSBAD
CLOVIS
IRVINE
LOS ANGELES
PALM SPRINGS
POINT RICHMOND
RIVERSIDE
ROSEVILLE
SAN LUIS OBISPO
MEMORANDUM
DATE: November 22, 2024
To: Erik Peterson,Architect, CEDG
FROM: J.T. Stephens, Principal/ Noise and Vibration Moe Abushanab, Noise Engineer
SUBJECT: Noise and Vibration Impact Analysis for the Proposed San Antonio Water Headquarters in Upland, California (LSA Project No. 20241723)
INTRODUCTION AND PROJECT DESCRIPTION
This noise and vibration impact analysis has been prepared to evaluate the potential impacts associated with the proposed San Antonio Water Headquarters (project) in Upland, California.This memorandum is intended to satisfy the City of Upland (City) requirement for a project-specific noise and vibration impact analysis and examines the impacts to the surrounding noise-sensitive uses with the incorporation of project design features and standard conditions. Future noise level impacts are based on the noise measurement data gathered in the vicinity of the project site (from July 16, 2024,to July 17, 2024), modeled traffic volumes from the Traffic Impact Analysis for the San Antonio Water Headquarters(LSA 2024), and calculated stationary source noise levels to properly account for the impacts associated with the proposed project.
Location and Description
The approximately 4.92-acre project site is located at 400 East 20th Street in the City of Upland in San Bernardino County(Assessor's Parcel Number 1044-091-22).The project site is located in northwest Upland in an area primarily consisting of residential, commercial, and industrial uses.The project site is bound by East 20th Street to the north, undeveloped open space to the east, State Route 210(SR 210)to the south, and Flower Court to the west. Figure 1 shows the proposed project location, and Figure 2 shows the site plan. All figures are presented in Attachment B.
The project would result in the construction of a new 3,698-square-foot SAWCO headquarters and associated improvements including a 4,066-square-foot maintenance building, maintenance yard, driveway, parking, solar cover, landscaping, and utility improvements.The headquarters building would feature office space, meeting and conference rooms, a lobby, an archive room, a break room, two Americans with Disabilities Act (ADA) restrooms, a quiet room, a copy room, and a work area.
The maintenance building would include storage space, an outdoor welding area, a motor repair room, electrical rooms, an ADA restroom, a locker room, and a maintenance office/break room.The existing water storage tank, pump station, and signal buildings and tower would remain in place. 20 Executive Park,Suite 200,Irvine,California 92614 949.553.0666 www.lsa.net
LSA
The buildings would be a maximum height of 23 feet and have a FAR of 0.07.Approximately ten people are expected to be employed on site.
METHODOLOGY
The evaluation of noise impacts associated with the proposed project includes the following:
• A determination of the short-term construction noise and vibration levels at off-site noise- sensitive uses and a comparison to the City's General Plan noise standards and Noise Ordinances within the Municipal Code
• A determination of the long-term noise levels at off-site, noise-sensitive uses as well as the proposed project and comparison of those levels to the City's pertinent noise standards • If necessary, a determination of required mitigation measures, such as noise barriers and upgraded windows,to reduce long-term noise impacts from all sources
CHARACTERISTICS OF SOUND
Noise is usually defined as unwanted sound. Noise consists of any sound that may produce physiological or psychological damage and/or interfere with communication, work, rest, recreation, and sleep.
To the human ear, sound has two significant characteristics: pitch and loudness. Pitch is generally an annoyance, while loudness can affect the ability to hear. Pitch is the number of complete vibrations, or cycles per second, of a wave resulting in the tone's range from high to low. Loudness is the strength of a sound that describes a noisy or quiet environment and is measured by the amplitude of the sound wave. Loudness is determined by the intensity of the sound waves combined with the reception characteristics of the human ear. Sound intensity refers to how hard the sound wave strikes an object, which in turn produces the sound's effect.This characteristic of sound can be precisely measured with instruments.The analysis of a project defines the noise environment of the project area in terms of sound intensity and its effect on adjacent sensitive land uses.
Measurement of Sound
Sound intensity is measured through the A-weighted scale to correct for the relative frequency response of the human ear.That is, an A-weighted noise level de-emphasizes low and very high frequencies of sound similar to the human ear's de-emphasis of these frequencies. Unlike linear units (e.g., inches or pounds), decibels are measured on a logarithmic scale representing points on a sharply rising curve.
For example, 10 decibels (dB) is 10 times more intense than 1 dB, 20 dB is 100 times more intense than 1 dB, and 30 dB is 1,000 times more intense than 1 dB.Thirty decibels (30 dB) represents 1,000 times as much acoustic energy as 1 dB.The decibel scale increases as the square of the change, representing the sound pressure energy. A sound as soft as human breathing is about 10 times greater than 0 dB.The decibel system of measuring sound gives a rough connection between the physical intensity of sound and its perceived loudness to the human ear.A 10 dB 11/22/24 u\\aznasunifiler2\projects\2024\20241723_San Antonio Driveway Expansion\PRODUCTS\Technical Studies\Noise and Vibration\Draft Report\San Antonio 2 Water Headquarters Noise Memo.docxn
LSA
increase in sound level is perceived by the human ear as only a doubling of the loudness of the sound. Ambient sounds generally range from 30 dB (very quiet)to 100 dB (very loud).
Sound levels are generated from a source, and their decibel level decreases as the distance from that source increases. Sound dissipates exponentially with distance from the noise source. For a single-point source, sound levels decrease approximately 6 dB for each doubling of distance from the source.This drop-off rate is appropriate for noise generated by stationary equipment. If noise is produced by a line source (e.g., highway traffic or railroad operations),the sound decreases 3 dB for each doubling of distance in a hard site environment. Similarly, line sources with intervening absorptive vegetation or line sources that are located at a great distance to the receptor would decrease 4.5 dB for each doubling of distance.
There are many ways to rate noise for various time periods, but an appropriate rating of ambient noise affecting humans also accounts for the annoying effects of sound.The equivalent continuous sound level (Leq) is the total sound energy of time-varying noise over a sample period. However,the predominant rating scales for human communities in the State of California are the Leq and Community Noise Equivalent Level (CNEL) or the day-night average noise level (Ldn) based on A-weighted decibels (dBA). CNEL is the time-varying noise over a 24-hour period,with a 5 dBA weighting factor applied to the hourly Leq for noises occurring from 7:00 p.m.to 10:00 p.m. (defined as relaxation hours) and a 10 dBA weighting factor applied to noises occurring from 10:00 p.m. to 7:00 a.m. (defined as sleeping hours). Ldn is similar to the CNEL scale but without the adjustment for events occurring during the evening hours. CNEL and Ldn are within 1 dBA of each other and are normally interchangeable.The City uses the Ldn noise scale for long-term noise impact assessment.
Other noise rating scales of importance when assessing the annoyance factor include the maximum instantaneous noise level (Lmax), which is the highest exponential time-averaged sound level that occurs during a stated time period.The noise environments discussed in this analysis for short-term noise impacts are specified in terms of maximum levels denoted by Lmax, which reflects peak operating conditions and addresses the annoying aspects of intermittent noise. It is often used together with another noise scale or noise standards in terms of percentile noise levels in noise ordinances for enforcement purposes. For example,the L10 noise level represents the noise level exceeded 10 percent of the time during a stated period.The L50 noise level represents the median noise level (i.e., half the time the noise level exceeds this level, and half the time it is less than this level).The L90 noise level represents the noise level exceeded 90 percent of the time and is considered the background noise level during a monitoring period. For a relatively constant noise source,the Leq and L50 are approximately the same.
Noise impacts can be described in three categories.The first category is audible impacts that refer to increases in noise levels noticeable to humans.Audible increases in noise levels generally refer to a change of 3 dB or greater because this level has been found to be barely perceptible in exterior environments.The second category, potentially audible, refers to a change in the noise level between 1 and 3 dB.This range of noise levels has been found to be noticeable only in laboratory environments.The last category is changes in noise levels of less than 1 dB,which are inaudible to the human ear. Only audible changes in existing ambient or background noise levels are considered potentially significant.
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