July 1, 2025
Table of Contents
I. Definition of Terms ..................................................................................................................... 2 II. Materials Acceptance Program .................................................................................................. 3 Field Sampling and Acceptance Testing ............................................................................... 3 Manufacturer’s Certificate of Compliance ............................................................................. 5 Source Inspection ................................................................................................................. 6 Visual Inspection .................................................................................................................. 6 III. Independent Assurance Program ............................................................................................... 7 IV. Project QAP Records ................................................................................................................. 8 V. Attachments ............................................................................................................................... 9
720
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
[This document supports the Caltrans Local Assistance Procedures Manual (LAPM) Section 16.11. In case of conflicts, the contract documents and the agency-state agreements prevail.] The purpose of the Quality Assurance Program (QAP) is to provide assurance that the materials incorporated into each state and federally funded construction project conform to the contract specifications, as well as to 23 CFR 637.
The QAP is updated every five years minimum.
The QAP is updated if changes are made, such as to the test methods or to the testing sampling and frequencies.
I. Definition of Terms
Acceptance Testing Testing of project materials to determine compliance with the contract specification criteria.
Certificate of Compliance A signed document from the material manufacturer committing that the delivered goods meet the contract
specifications.
Independent Assurance
Program (IAP)
A program that verifies that acceptance testing is being performed correctly by certified testers using accredited laboratories and calibrated equipment.
Materials Acceptance
Program
Sampling, testing, inspection, and certification of project materials to determine compliance with the contract
specifications.
Quality Assurance
Program (QAP)
A program that will ensure materials and workmanship
incorporated into the project conform to the contract
specifications. The main elements of a QAP are the Material Acceptance Program and the Independent Assurance
Sampling and Testing Program.
Source Inspection Sampling, testing, and/or inspection of manufactured or prefabricated structural materials at a location other than the job site, generally at the manufactured location.
721
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
II. Materials Acceptance Program
Material incorporated into the work is accepted by one or more of the following methods, as specified in the contract specifications:
1. Field Sampling and Acceptance Testing
2. Manufacturer’s Certificate of Compliance
3. Source Inspection and Testing
4. Visual Inspection
Field Sampling and Acceptance Testing
• Acceptance sampling and testing are performed by certified materials personnel. • Acceptance testing is performed utilizing accredited materials laboratories and properly calibrated equipment.
• Certifications and accreditations are specific to the tests being performed. • A materials testing results log is maintained for any test method performed more than once on a project.
• Test results for materials incorporated into the work are to be in compliance with the contract specifications.
• Actions taken regarding material with failing test results will be fully documented, including details documenting remove/replace, rework/re-test, and deduction/change order.
• Justification will be provided for any failing material allowed to remain in-place.
Acceptance Sampling and Testing Locations / Frequencies Sample and testing locations and frequencies are to be in accordance with the contract specifications.
If not specified in the contract documents, sampling and testing locations / frequencies are shown in Attachment 1: Acceptance Sampling and Testing Frequencies.
When sampling products such as Portland cement concrete, cement-treated base, hot mix asphalt, or similar materials, sampling is varied with respect to the time of the day, in so far as possible, in order to avoid a predictable sampling routine.
Acceptance Test Methods
The test methods used are as specified in the contract documents. If not specified, testing is done with the California Tests (CT) Method.
For a material specified to comply with a property , testing is performed utilizing the noted test method(s) in Attachment 1: Sampling and Testing Frequency Table. 722
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
Acceptance Materials Testing Laboratory
Acceptance testing will be performed by:
Accredited Consultant Materials Laboratory
The City of South Lake Tahoe certifies that the following is true:
The materials laboratory is under the responsible management of a California Registered Engineer with experience in sampling, inspection, and testing of construction materials.
The Engineer will certify the results of all tests performed by laboratory personnel under the Engineer’s supervision.
The Materials Laboratory is properly accredited.
The Materials Laboratory testing personnel are appropriately certified. Testing equipment is properly calibrated.
Materials Laboratories will comply with Section III. Independent Assurance Program (IAP) of this document.
Reporting Acceptance Test Results
The laboratory reports test results to the Resident Engineer (RE) as soon as possible by email or telephone.
Copies of the complete material test result reports, including data and calculation sheets, are provided to the RE in accordance with the following timetable:
If the material is sampled … and the test performed is … submit results to the RE within … at the material plant Sieve Analysis or
Sand Equivalent (SE) or
Cleanness Value (CV)
24 hours
at the jobsite Compaction and/or maximum
density
24 hours
Sieve Analysis or
Sand Equivalent (SE) or
Cleanness Value (CV)
72 hours
R value or
Asphalt extraction
96 hours
723
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
Acceptance Testing Summary Logs
The RE maintains a testing summary log for each test method performed on the project utilizing Attachment 2: Test Result Summary Log.
The logs are used by the RE to track that:
Sampling is performed at the required frequencies.
Acceptance tests are performed at the required frequencies. Tester certifications are current and on file.
All failing tests have been mitigated and documented.
Manufacturer’s Certificate of Compliance
• Various manufactured materials may be accepted for incorporation into the work without sampling or testing, based on the following:
o Visual examination of material is performed
o Supplier has furnished similar material with a history of having met specifications
o Manufacturer certification that materials comply with contract specifications o The products, materials, or assemblies do not involve structural integrity or safety to the public
• Where required by the contract specifications, the contractor must submit a certificate of compliance and comply with Buy America certification requirements as applicable.
• Where required by the contract, the contractor must attach test data or other documents to the certificate of compliance.
• The RE may perform sampling and testing on such materials at any time. • Certificates of compliance must:
o Be submitted by the Contractor before the material is incorporated into the work;
o Accompany the material to the job site.
o Identify the lot (or heat) number for each lot delivered; o Include the contract number;
o Include test data and other documents when required.
o State that the material complies with the contract specifications; and o Be signed by the producer of the material.
List of Materials Accepted by Certificate of Compliance The City of South Lake Tahoe uses the 2023 Caltrans Standard Specifications and applicable standard specifications from the 2009 City of South Lake Tahoe Public Improvements and Engineering Standards.
724
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
In accordance with 2023 Caltrans Standard Specifications and applicable standard specifications from the 2009 City of South Lake Tahoe Public Improvements and Engineering Standards the materials listed in Attachment 3 may be accepted by Certificate of Compliance
This list may be amended by the contract Special Provisions or Technical Provisions Source Inspection and Testing
• Some manufactured or pre-fabricated structural materials will be inspected or tested prior to arrival at the jobsite, generally at the manufacturer’s location (a.k.a. source inspected).
• Structural items categorized as “catastrophic consequences of failure” or “significant safety concern” may be source inspected. Materials that might be source inspected include: structural steel, precast pre-stressed concrete girders and pilings; RCP greater than 60”, joint seals, bearing pads, lighting and signal poles, sign structures, electrical items.
• The RE may reject source inspected material at the job site if deemed not acceptable, including:
o Material damage in shipment or installation;
o Defective material (source inspection is usually a random sampling and may not have checked 100% of the material.)
• The following materials laboratories will be used to perform source inspection and testing.
Accredited Consultant Materials Laboratory
Visual Inspection
• Relatively minor quantities of construction materials may be accepted without testing.
• The following 3 conditions must be met:
1. Visual examination of the material is performed.
2. The manufacturer or supplier has recently furnished similar materials found to be satisfactory using normal sampling and testing requirements.
3. The manufacturer (or supplier in the case of HMA or concrete) provides certification that the material furnished complies with the contract specifications.
Approximate Quantities that May be Accepted by Visual Inspection • Aggregates other than for use in Portland Cement Concrete, not to exceed:
o 100 tons per day, nor
o 500 tons per project
• Bituminous mixtures (example: HMA), not to exceed
o 50 tons per day
725
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
o If project total is less than 500 tons., sample at engineer’s discretion • Bituminous material (example: Liquid Asphalt), not to exceed:
o 100 gallons per project
III. Independent Assurance Program (IAP)
The IAP verifies that:
o Sampling and testing procedures are being performed correctly o All acceptance testing performed on the project uses an accredited laboratory and certified testing personnel.
o All testing equipment is in good condition and properly calibrated The IAP duties, including certification of testers and laboratory accreditation, are executed by:
Consultant
Independent assurance samples and tests are not to be used for determining compliance with contract requirements.
Testing with only ASTM/AASHTO material testing will require the LPA hire a separate laboratory to perform independent assurance (see LAPM 16.11.2: Independent Assurance (IA) Program).
Laboratory Accreditation
The acceptance testing materials laboratory must participate and comply with one or more of the following Correlation Testing Programs
o AASHTO resource (formerly AMRL)
o Cement and Concrete Reference Laboratory (CCRL)
o Caltrans Reference Samples Program (RSP)
The Acceptance Testing Laboratory Accreditation occurs annually or per issuance agency.
A current copy of the laboratory’s accreditation certificate is kept in the project records.
Tester Certification
Sampling and testing personal are certified for a maximum of 5 years by one or more of the following Personnel Certification Programs:
Other nationally recognized organization: American Association of State Highway and Transportation Officials (AASHTO)
LPA’s designated and qualified independent assurance person (independent assurance person may not perform acceptance testing)
726
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
Proficiency tests are performed for testers to be certified on Sieve Analysis, Sand Equivalent, and Cleanness Value tests; all other types are witness tests. A copy of each tester’s current and applicable certifications is kept in the project files.
Equipment Calibration
Laboratory testing equipment will be:
Capable of performing the tests required.
Be in good working order.
Be calibrated at least once each year, and more frequently if required by test method or manufacturer’s recommendation.
Be calibrated by impartial means using devices of accuracy traceable to the National Institute of Standards and Technology.
Have a decal firmly affixed to each piece of equipment showing:
o Equipment Identification Number
o Calibration Date
o Calibration Expiration/Due
o Calibrator Name/Company Name
IV. Project QAP Records
Project records will have on file pertinent quality assurance documents which may include, but not limited to (see LAPM 16.3.1: Organization of Project Records for more details):
Copy of Quality Assurance Plan
Certificates of Proficiency
Certificate of Accreditation for Testing Laboratory
Notice of Materials to be Used
Acceptance Testing Summary Logs and Test Results
Certificates of Compliance (Buy America certification requirements as applicable; see LAPM)
Source inspection records and reports
All project records will be available in a single location for inspection by auditors and reviewers:
At any time during the project
For three years following the date of the final project voucher 727
City of South Lake Tahoe Quality Assurance Program
July 1, 2025
V. Attachments
Attachment No. 1: Acceptance Sampling and Testing Frequencies Attachment No. 2: Test Results Summary Log
Attachment No. 3: List of Materials Accepted by Certificate of Compliance Attachment No. 4: CEM-3101 “Notice of Materials to be Used” Attachment No. 5: Final Materials Certification
Attachment No. 6: Caltrans Test Method – ASTM Test Method Conversion Chart 728
Attachment No. 1
Acceptance Sampling and Testing Frequencies
729
Local Assistance Procedures Manual Exhibit 16-R
Sampling and Testing Frequency
January 2018
Exhibit 16-R Sampling and Testing Frequency Table
for projects ON-SHS and OFF-SHS
City of South Lake Tahoe
Sampling and Testing Frequency Table
for projects ON and OFF the SHS.
HOT MIX ASPHALT (HMA) / ASPHALT CONCRETE (AC)
Quality Characteristic Test Method Minimum Sampling and Testing Frequency Location/Time of Sampling Aggregate Gradation (Sieve) CT202
ASTM C136
AASHTO T27
1 Per 1000 Tons or Part Thereof ; Minimum 1 per day during production/placement of at least 300 tons per day.
At Plant Per CT 125 (a)
Sand Equivalent CT217
ASTM D2419
AASHTO T176
Asphalt Binder Content CT382
AASHTO T 308 Method A
Loose Mix Behind Paver Per CT 125
In-Place Density and Relative Nuclear (b) 1 Per 1000 Tons or Part Thereof ; Minimum 1 per day during production/placement of at least 300 tons per day. (b) Random Locations Per CT 375 (c Compaction (Nuclear ) CT 375 or ASTM D2950 (C)
Theoretical Maximum Specific Gravity
and Density (Rice)
CT 309
AASHTO T 209 Method A
1 Per Day During Production/Placement of At Least 300 Tons Per Day Loose Mix Behind Paver Per CT 125 HMA Moisture Content CT 226 or CT 370
AASHTO T329
Stabilometer Value (d) CT 366
Asphalt Binder Sample per Section 92 Sample 1 min. per day for production over 300 tons per day; See (f) regarding testing. At Plant Per CT 125 Smoothness 12-foot Straightedge As necessary to confirm contract compliance. Final Pavement Surface (a) Exact tonnage of sample location to be determined by Random Sampling Plans (b) Compaction determined by Neclear Density Device. Core testing required if compaction fails the neclear test (c) Correlation between core densities and nuclear device required only if compaction fails the nuclear test (d) Report the average of 3 tested briquettes from a single split source (e) Use CT 309 to determine maximum theoretical density in lieu of CT 367 calculated maximum theoretical density (f) No testing required unless warranted by concern ; sample and store until completion of project 730
Local Assistance Procedures Manual Exhibit 16-R
Sampling and Testing Frequency
January 2018
SUBGRADE (DISTURBED BASEMENT SOIL) OR EMBANKMENT
Quality Characteristic Test Method Minimum Sampling and Testing Frequency Location/Time of Sampling Maximum Density and Relative
Compaction
CT 216/CT 231
ASTM D2922
AASHTO T238
1 Min. Test per 5000 sq ft under vehicle traveled way and shoulder 1 Min. Test Per 300 linear foot under sidewalk
Random locations as determined by
the Engineer in place after
compaction.
AGGREGATE BASES AND SUBBASES, IMPORTED BORROW
Quality Characteristic Test Method Minimum Sampling and Testing Frequency Location/Time of Sampling Sieve Analysis CT 202
ASTM C136
AASHTO T27
1 Min. Test Per Material Source Sample from site stockpile/plant prior to placement.
R-Value CT 301
ASTM D2844
AASHTO T190
Sand Equivalent CT 217
ASTM D2419
AASHTO T176
Maximum Density and Relative
Compaction
CT 216/CT 231
ASTM D2922
AASHTO T238
1 Min. Test per 5000 sq ft
Random locations as determined by
the Engineer in place after
compaction.
STRUCTURE BACKFILL, SELECT BACKFILL
Quality Characteristic Test Method Minimum Sampling and Testing Frequency Location/Time of Sampling Sieve Analysis CT 202
ASTM C136
AASHTO T27
1 Min. Test Per Material Source Sample from site stockpile/plant prior to placement
R-Value CT 301
ASTM D2844
AASHTO T190
Sand Equivalent CT 217
ASTM D2419
AASHTO T176
Maximum Density and Relative
Compaction
CT 216/CT 231
ASTM D2922
AASHTO T238
1 Min. Test Per 2 Vertical Lifts of Placement
Random locations as determined by
the Engineer in place after
compaction.
731
Local Assistance Procedures Manual Exhibit 16-R
Sampling and Testing Frequency
January 2018
Minimum Sampling and Testing Frequency Location/Time of Sampling Minimum Sampling and Testing Frequency Location/Time of Sampling
PORTLAND CEMENT CONCRETE (PCC) - STRUCTURAL AND SIGNAL/LIGHTING FOUNDATIONS
COARSEAGGREGATE
Quality Characteristic Test Method Minimum Sampling and Testing Frequency Location/Time of Sampling Sieve Analysis CT 202
ASTM C136
AASHTO T27
1 min. test per 500 cu yds and per each material source ; 1 min. test on smaller projects; If bridge, 1 min. set per separate pour per abutment/pier/deck.
Sample from site stockpile/plant prior
to placement
Cleanness Value CT 227
FINEAGGREGATE
Quality Characteristic Test Method Minimum Sampling and Testing Frequency Location/Time of Sampling Sieve Analysis
CT 202
ASTM C136
AASHTO T27 1 min. test per 500 cu yds and per each material source ; 1 min. test on smaller projects; If bridge, 1 min. set per separate pour per abutment/pier/deck.
Sample from site stockpile/plant prior
to placement
Sand Equivalent
CT 217
ASTM D2419
AASHTO T176
WET MIX
Quality Characteristic Test Method Minimum Sampling and Testing Frequency Location/Time of Sampling Slump/Penetration CT 533
ASTM C143
ASTM C360
2 per day
Sample from truck/work site
Cylinders
CT 539/540
ASTM C39
AASHTO T22
1 min. set of 3 per day; If bridge, 1 min. set per separate pour of abutment/pier/deck.
732
Attachment No. 2
Test Results Summary Log
733
SAMPLE
Test Method Name: ___________________ Test Method Number: ___________________ Test
Number Date Sampled Remarks
Location (Stations, depths, etc) Production Quantity
Represented Required Result Actual Result Pass/Fail Include action taken for any failing test result; note test number of any retest.
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 Production
Acceptance Testing Results Summary Log
Project Name: __________________________________________________________ Contract Number: _______________________________________________________ Name of Sampler or Tester Test Results
Tester Certification on file?
January 2018734
Attachment No. 3
List of Materials Accepted by
Certificate of Compliance
735
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 1 of 9 October 2024
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
6-1.04 BUY AMERICA
6-1.04B Crumb rubber COC
6-1.04C Steel and iron materials COC + cert. mill test reports 6-1.07B Telecommunications and Video Surveillance Equipment COC 11-2 WELDING QUALITY CONTROL
11-2.03D Welding COC
11-3 WELDING FOR OVERHEAD SIGN STRUCTURES, STANDARDS, AND POLES 11-3.303 Welding COC
12-3 TEMPORARY TRAFFIC CONTROL DEVICES
12-3.03A(3) Plastic Traffic Drums COC
12-3.20A(3) Temporary Barrier System COC
12-3.23A(3) Impact Attenuator COC
12-3.32A(3) Portable CMS COC
12-3.33A(2) Portable Signal System COC
13-2 WATER POLLUTION CONTROL PROGRAM
13-9 TEMPORARY CONCRETE WASHOUTS
13-9.01C Fabric bags for gravel-filled bags COC
Plastic liner COC
13-10 TEMPORARY LINEAR SEDIMENT BARRIERS
13-10.01C Fiber rolls COC
Silt fence fabrics COC
Sediment filter bags COC
Foam barriers COC
Fabric for gravel-filled bags COC
Compost Socks COC
16-2.03 TEMPORARY HIGH-VISIBILITY FENCES
16-2.03A(3) High-visibility fabric COC
18 DUST PALLIATIVES
18-1.01C Dust suppressant COC
Dust control binders COC
Fibers COC
20 LANDSCAPE
20-2 IRRIGATION
736
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 2 of 9 October 2024
Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
20-2.08A(3) Polyethylene pipe COC
Plastic pipe supply line COC
20-3 PLANTING
20-3.01A(3)(c) Sod COC
Soil amendment COC
Plant tubes COC
20-5 LANDSCAPE ELEMENTS
20-5.03A(1)(c) Filter fabric COC + product data
20-5.03D(1)(c) Solidifying emulsion COC + product data & samples 20-5.04A(3) Wood mulch COC + sample & authorization
21-2 EROSION CONTROL WORK
21-2.01C(1) Straw COC
Weed-free straw COC + cert. of quarantine
Fiber COC
RECP COC
Fasteners COC
Hydraulically applied erosion control materials Submit records 21-2.01C(2) Compost Submit reports
21-2.01C(3) Seed Submit reports
21-2.01C(4) Tackifier COC + SDS + Reports
Bonded fiber matrix COC + SDS + Reports
21-2.01C(5) Fiber Reinforced Matrix COC + Manufacturer information 24 STABILIZED SOILS
24-1.01C(1) Stabilizing agent COC + sample
24-3 CEMENT STABILIZED SOIL
24-3.01C Cement COC + sample
30-4 FULL DEPTH RECYCLING - CEMENT
30-4.01C(2) Cement COC
30-5 PARTIAL DEPTH RECYCLING
30-5.01C(3) Recycling agent COC + SDS + test results
Cement COC + SDS
Other Additives COC + SDS
737
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 3 of 9 October 2024
Caltrans 2024Standard
Specifications
Material Additional Info and/or
Attachments Required*
36-2 BASE BOND BREAKER
36-2.01C Base bond breaker COC
37 SEAL COATS
37-1.01C Asphalt binder COC + test results
Asphalt emulsion COC + test results
37-2 CHIP SEALS
37-2.04A(3) Asphalt rubber binder ingredients COC + test results+ Submittals 37-3 SLURRY SEALS AND MICRO-SURFACINGS
37-3.01A(3) Asphaltic emulsion COC + samples & test results Polymer modified asphaltic emulsion COC + samples & test results Micro-surfacing emulsion COC + sample & test results
37-5 PARKING AREA SEALS
37-5.01C Parking area seal material COC + sample & test results 37-6 CRACK TREATMENTS
37-6.01C Crack treatment materials COC or sample & test results 39-2 HOT MIX ASPHALT
39-2.01A(3)(f) Liquid antistrip COC + sample & production data 39-2.03A(3)(c) Crumb rubber modifier COC + test results Asphalt modifier COC + test results
39-2.03B(3)(c) Crumb rubber modifier COC + test results 39-2.05A(1)(c) Asphaltic emulsion COC + test results+sample 40 CONCRETE PAVEMENT
40-1.01C(2) Tie bars COC
Splice couplers for threaded bars COC
Dowel bars COC
Tie bar baskets COC
Dowel bar baskets COC
Joint filler COC
Epoxy-powder coating COC
41 EXISTING CONCRETE PAVEMENT
41-1.01C Fast-setting concrete COC + SDS & instructions Polyester resin binder COC + SDS & instructions
Bonding agent COC + SDS & instructions
738
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 4 of 9 October 2024
Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
41-5 JOINT SEALS
41-5.01C Liquid joint sealant COC + SDS & instructions
Backer rods COC + SDS & instructions
Compression joint seal COC + SDS & instructions
Lubricant adhesives COC + SDS & instructions
41-10 DRILL AND BOND BARS
41-10.01C Tie bars COC
Dowel bars COC
Dowel bar lubricant COC
Chemical adhesive COC
Epoxy powder coating COC
47-6 ALTERNATIVE EARTH RETAINING SYSTEMS
47-6.01C(3) Alternative earth retaining system COC
48-2 FALSEWORK
48-2.01C(1) Structural composite lumber COC + submittals Timber COC + submittals
48-4 TEMPORARY DECKING
48-4.01C Temporary decking materials COC
49-2 DRIVEN PILING
49-2.02A(3)(d) Steel pipe piles COC + tests & mill reports 49-2.03A(3) Structural shape steel piling COC + test reports 51 CONCRETE STRUCTURES
51-1.01C(3) Bonding materials COC or sample & authorization 51-1.01C(5) Chemical adhesive COC + SDS + Instructions
51-2 JOINTS
51-2.01A(3) Acetal copolymer material for snowplow deflectors COC 51-2.02B(1)(c) Joint seals, backer rods, and primer COC + SDS + Instructions 51-2.02C(1)(c) Elastomeric joint seal COC + test reports Lubricant-adhesive COC + test reports
51-2.02D(1)(c) Joint seal materials COC + authorization 51-2.02E(1)(c)(iii) Joint seal assembly materials COC
51-2.02F(1)(c)(iv) Material used in the joint seals COC + test reports 51-2.04A(3) Waterstop material COC + a statement
739
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 5 of 9 October 2024
Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
51-3 BEARINGS
51-3.02A(3)(c)(ii) Plain elastomeric bearing pads COC + test reports 51-3.02A(3)(c)(iii) Steel-reinforced elastomeric bearing pads COC + test reports 51-3.03A(3)(a) Materials used in PTFE bearings COC + test reports + statement 51-4 PRECAST CONCRETE MEMBERS
51-4.01C(1) Concrete box culvert COC
52 REINFORCEMENT
52-1.01C(3) Reinforcement (rebar) COC + mill test report 52-2 EPOXY-COATED REINFORCEMENT
52-2.02A(3)(c) Epoxy-coated reinforcement COC + submittals Patching material COC + a statement
52-2.023A(3)(c) Epoxy-coated reinforcement COC + submittals Patching material COC + a statement
52-5.01C(2)(b) Headed bar reinforcement COC + test samples 52-5.01C(4) Headed bar reinforcement COC + test reports 52-6 SPLICING
52-6.01C(3)(b) Service and butt splice samples COC + samples 52-6.01C(5) Service or butt splice material COC + submittals 54 WATERPROOFING
54-3 PREFORMED MEMBRANE WATERPROOFING
54-3.01C Preformed membrane sheet COC + report
54-5 DECK SEAL
54-5.01C Preformed membrane sheet COC + report
55 STEEL STRUCTURES
55-1.01c(1) Steel materials used COC + Test reports
57-2 WOOD STRUCTURES
57-2.01A(3) Timber and lumber COC + report
Glued laminated timbers/decking COC
57-3 PLASTIC LUMBER STRUCTURES
57-3.01C(1) Plastic lumber COC + test report & sample
58-2 MASONRY BLOCK
58-2.01C(7) CMUs COC
Aggregate for grout COC
Grout COC
740
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 6 of 9 October 2024
Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
59 STRUCTURAL STEEL COATINGS
59-1.01C Blast cleaning material COC + SDS
59-5 THERMAL SPRAY COAT STRUCTURAL STEEL
59-5.01C(1) Wire feedstock COC
60-3.04B POLYESTER CONCRETE OVERLAYS
60-3.04B(1)(c) Methacrylate resins COC + samples & test report Polyester resins COC + samples & test report
Aggregates COC + samples & test report
60-3.05B(1)(c) Filler material and bonding agents COC + samples 61-2 CULVERT AND DRAINAGE PIPE JOINTS
61-2.01C Joint systems COC + test results & reports
Couplers COC + test results & reports
62 STORMWATER TREATMENT
62-1.01C Source material COC
62-3.01C Source material COC
64 PLASTIC PIPE
64-1.01C Plastic pipe COC + report
65-2 REINFORCED CONCRETE PIPE
65-2.01C RCP, direct design method COC + report
66 CORRUGATED METAL PIPE
66-1.01C Corrugated steel materials COC
Corrugated aluminum materials COC
67-3 METAL LINE PLATE PIPE
67-2.01C Structural metal plate pipe, arches, and pipe arches COC + Instructions 67-3.01C Metal liner plate pipe COC + mill test reports 68 SUBSURFACE DRAINS
68-1.01C Subsurface drain COC
68-2 UNDERDRAINS
68-2.01C Pipe COC
Tubing COC
Fittings COC
68-7 GEOCOMPOSITE DRAIN SYSTEMS
68-7.01C Geocomposite drain COC + flow capability graph 68-8.01C(1) Prefabricated vertical drain COC+ Test samples 741
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 7 of 9 October 2024
Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
69 OVERSIDE DRAINS
69-1.01C Steel COC
Aluminum COC
Plastic COC
70-6 GRATED LINE DRAINS
70-6.01C Grated line drains COC + Report
71-3.09 MACHINE SPIRAL WOUND PVC PIPELINERS
71-3.09A(1)(c) Each reel of PVC strip COC + Report
72-16 GABIONS
72-16.01C Gabion basket COC
PVC coating COC
74 PUMPING EQUIPMENT AND CONTROLS
74-2.01C(3) Impeller balancing and drainage pump tests COC + Report 75-3 MISCELLANEOUS BRIDGE METAL
75-3.01C(1) Anchorage devices COC
75-3.01C(2) BRIDGE DECK DRAINAGE SYSTEM
75-3.01C(2) Fiberglass pipe and fittings COC + Test results 80-3 CHAIN LINK FENCES
80-3.01C Protective coating system COC
Posts and braces COC + Report
81 MISCELLANEOUS TRAFFIC CONTROL DEVICES
81-2 DELINEATORS
81-2.01C Metal target plates COC
Enamel coating COC
81-3 PAVEMENT MARKERS
81-3.01C Pavement markers COC
82 SIGNS AND MARKERS
82-2 SIGN PANELS
82-2.01C Aluminum sheeting COC
Retroreflective sheeting COC
Color imaging methods and film COC
Protective overlay film COC
742
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 8 of 9 October 2024
Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
82-5 MARKERS
82-5.01C Metal target plates COC
Enamel coating COC
Retroreflective sheeting COC
83-2 METAL RAILINGS AND BARRIERS
83-2.08A(3) Tubular railing components COC + Shop drawings 83-3 CONCRETE BARRIERS
83-3.01C Type 60K portable concrete barrier COC or test reports 84-2 TRAFFIC STRIPES AND PAVEMENT MARKINGS
84-2.01C Stripe material COC + SDS + Instructions
Primer COC + SDS + Instructions
Glass beads COC + SDS + Instructions
Thermoplastic COC + SDS + test results
DIVISION X ELECTRICAL WORK
86-1.01C(6) Signal heads COC + test data
86-1.01C(8) Visors COC + test data
87-2 LIGHTING SYSTEMS
87-2.01C High mast lighting luminaires COC + test data
90 CONCRETE
90-1.01C(3) Cementitious materials COC
Blended cement COC + SCM weight
90-1.01C(4) Admixture COC + authorization
90-1.01C(5) Curing compound COC + test samples
90-1.01C(12) Cast-In-Place structural concrete material COC 90-1.01C(13) Polymer Fibers COC + Instructions
90-2 MINOR CONCRETE
90-2.01C Minor concrete COC + weighmaster cert
90-3 RAPID STRENGTH CONCRETE
90-3.01C(3) Aggregate COC + weighmaster cert
Cementitious materials COC + weighmaster cert
Admixtures COC + weighmaster cert
90-4 PRECAST CONCRETE
90-4.01C(2) and
90-4.01D(2)(a)
Cementitious materials COC + app. signature
Precast members (each) COC + app. signature
Curing compound COC + test samples
743
Materials Requiring a Certificate of Compliance per Caltrans Standard Specifications * For those materials requiring additional information on or with the COC, see specification. Page 9 of 9 October 2024
Caltrans 2024 Standard
Specifications
Material Additional Info and/or
Attachments Required*
94 ASPHALTIC EMULSIONS
94-1.01C Asphaltic emulsion COC + reports
95 EPOXY
95-1.01C Epoxy COC
96 GEOSYNTHETICS
95-1.01C(1) Geosynthetic COC + test samples
744
Attachment No. 4
CEM-3101 “Notice of Materials to be Used”
745
I I
Local Assistance Procedure Manual Exhibit 16-I
Notice of Materials to Be Used
EXHIBIT 16-I NOTICE OF MATERIALS TO BE USED
STATE OF CALIFORNIA - DEPARTMENT OF TRANSPORTATION
NOTICE OF MATERIALS TO BE USED
CEM-3101 (REV 09/2015)
ADA Notice
For individuals with sensory disabilities, this document is available in alternate formats. For alternate format information, contact the Forms Management Unit at (916) 445-1233, TTY 711, or write to Records and Forms Management, 1120 N Street, MS-89, Sacramento, CA 95814.
Resident Engineer: Date:
Materials required for use under contract number (1):
District: County:
will be obtained from the following sources:
Route: Post Miles:
Contract
Bid Item
Number
(2)
Item
Code
(3)
Contract
Item
Description
(4)
Item
Component
(5)
Manufacturer/Provider
Name and Address
(6)
Manufacturer/Provider
Email Address
(6)
It is requested that the contractor arrange for sampling, testing, and inspection of materials prior to delivery in accordance with Section 6 of the Standard Specifications. It is understood that source inspection does not relieve the prime contractor of the full responsibility for incorporating into the work, materials that comply in all respects with the contract plans and specifications, nor does it preclude the subsequent rejection of materials found to be unsuitable.
Contractor
Address
Business Phone Business Fax E-Mail Address
Distribution: 1. Lab Manager 2. Project File
January 2018 746
Local Assistance Procedure Manual Exhibit 16-I
Notice of Materials to Be Used
NOTICE OF MATERIALS TO BE USED
INSTRUCTIONS TO CONTRACTOR
Section 6 of the Standard Specifications states that, "Before the preconstruction conference, submit material source information on a "Notice of Materials to Be Used form".
In order to avoid delay in approval of materials, the Department of Transportation must receive, in a timely manner, Form CEM-3101, "Notice of Materials to Be Used." When filing this form, please comply with the following instructions:
1. The Contract Number and job limits should be the same as they appear on the special provisions.
2. The column headed "Contract Bid Item Number" refers to the sequential item number of the contract.
3. The column headed "Item Code" refers to the number for which the material is to be used. It is a six-digit number.
4. The column headed "Contract Item Description" refers to an item description of the material as described in the special provisions.
5. The column headed "Item Component" refers to the specific description of material to be used, not necessarily the name of the contract item.
For example:
Contract
Bid Item
Number
Item
Code
Contract
Item
Description
Item
Component
01 520101 Bar reinforcing steel Coupler (service splice)
6. The column headed "Manufacturer/Provider" refers to the manufacturer/fabricator of the item. List the name, address and e-mail address of the Manufacturer/Fabricator. Also, list the name and address of the location here inspection will occur, if different from the Manufacturer/Fabricator.
7. Form CEM-3101, "Notice of Materials to Be Used," must be submitted to the resident engineer (RE). The RE will email Form CEM-3101 to the materials administrator to, [email protected] or fax to (916) 227-7084, Attn: Materials Administrator or postal mail to: Material Engineering & Testing Services, 5900 Folsom Blvd., Sacramento, CA 95819, MS-5.
If the sources of materials are not known at the beginning of a contract, submit a Form CEM-3101, "Notice of Materials to Be Used," for a given bid item as soon as a provider is known. Multiple submittals may be necessary.
Resubmit a Form CEM-3101, "Notice of Materials to be Used," for all changes or revisions.
When placing orders for materials that require inspection prior to shipment, be sure to indicate on your request form that state inspection is required before shipment.
January 2018 747
Attachment No. 5
Final Materials Certification
748
Local Assistance Procedures Manual Exhibit 17-G
Materials Certificate
Exhibit 17-G: Materials Certificate
MATERIALS CERTIFICATE
CITY/COUNTY LETTERHEAD
(Sample)
Date:
Federal-Aid Project Number:
Caltrans File Category 61:
Job Stamp:
Subject: Materials Certification
This is to certify that:
The results of the tests on acceptance samples indicate that the materials incorporated in the construction work and the construction operations controlled by sampling and testing were in conformity with the approved plans and specifications.
Exceptions to the plans and specifications are explained on the back of this memorandum (or on attached sheet).
No exceptions to the plans and specifications were found.
Signature of local agency engineer in responsible charge of project and title Distribution: (For all projects) 1) Local agency Project Files (original) 2) DLAE (1 copy in Report of Expenditures)
(For projects on the NHS) 3) FHWA (1 copy)
January 2022 749
Attachment No. 6
Caltrans Test Method – ASTM Test Method
Conversion Chart
750
Local Assistance Procedures Manual Exhibit 16-S
Caltrans Test Method- ASTM Test Method Conversion Chart
January 2018
CALTRANS TEST METHOD - ASTM TEST METHOD CONVERSION CHART Testing Procedures - for local agency use only
Use this CTM - ASTM conversion chart to assist you in determining acceptance test requirements and frequencies, as detailed in Caltrans Construction Manual Chapter 6, “Sampling and Testing.” Refer to the Agency, special provisions, contract plans, and applicable standard specifications, for correct sampling and test methods (ASTM-CTM).
CTM ASTM Book of
Standar
ds
TEST PROCEDURE NOTE
S
105 Calculations Pertaining to Gradings and Specific Gravities 2 125 Sampling Highway Materials (when approved)
D75 4.02 Standard Practice for Sampling Aggregates 3
D979 4.03 Practice for Sampling Bituminous Paving Mixtures 3 201 Soil & Aggregate Sample Preparation
C702 4.02 Reducing Field Samples of Aggregate to Testing Size 13 202 Sieve Analysis of Fine and Coarse Aggregate
C136 4.02 Sieve Analysis of Fine and Coarse Aggregate
C117 4.03 Material Finer Than 75-um (#200) Sieve in Mineral Aggregates by Washing 205 Percentage of Crushed Particles 1
206 Specific Gravity and Absorption of Coarse Aggregate C127 4.02 Specific Gravity and Absorption of Coarse Aggregate 207 Specific Gravity and Absorption, Fine Aggregate
C128 4.02 Specific Gravity and Absorption, Fine Aggregate 208 Apparent Specific Gravity of Fine Aggregate 1
211 Abrasion of Coarse Aggregate by Use of the Los Angeles Rattler Machine C131 4.02 Resistance to Degradation , Small-Size Coarse Agg. by Abrasion & Impact, L.A. Machine
213 Organic Impurities in Concrete Sand
C40 4.02 Organic Impurities in Fine Aggregate for Concrete 214 Soundness of Aggregates by Use of Sodium Sulfate 1
C88 4.02 Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate 216 Relative Compaction of Untreated and Treated, Soils & Aggregates D1556 4.08 Density of Soil In-place by the Sand Cone Method D1557 4.08 Moisture-Density Relations of Soils & Soil-Agg. Mixtures, 10-lb. Rammer, 18-in Drop
11 217 Sand Equivalent (only authorized method per Caltrans 07, District Materials 1,9 223 Surface Moisture in Concrete Aggregate 1
226 Moisture Content in Soils by Oven Drying
C566 4.02 Total Moisture Content of Aggregate by Drying 227 Evaluating Cleanness of Coarse Aggregate 1
229 Durability Index 1
D3744 4.03 Aggregate Durability Index
231 Relative Compaction of Soils by the Area Concept Utilizing Nuclear Gages 4 D2922 4.08 Density of Soil & Soil-Aggregate In-place by the Nuclear Method 4 751
Local Assistance Procedures Manual Exhibit 16-S
Caltrans Test Method- ASTM Test Method Conversion Chart
January 2018
CTM - ASTM Testing Procedures - for local agency use only Use this CTM - ASTM conversion chart to assist you in determining acceptance test requirements and frequencies, as detailed in Caltrans Construction Manual Chapter 6, “Sampling and Testing.” Refer to the Agency, special provisions, contract plans, and applicable standard specifications, for correct sampling and test methods (ASTM-CTM).
CTM ASTM Book of
Standards
TEST PROCEDURE NOTES
301 R-Value of Treated & Untreated, Bases, Subbases & Basement Soils 1 D2844 4.08 R-Value and Expansion Pressure of Compacted Soils 302 Film Stripping
D1664 4.03 Coating and Stripping of Bitumen-Aggregate Mixtures 303 Centrifuge Kerosene Equivalent 1
304 Preparation of Bituminous Mixtures for Testing 1
D1561 4.03 Prep. of Bituminous Mixture Test Specimens by Means of Calif.
Kneading Compactor
305 Swell of Bituminous Mixtures 1
307 Moisture Vapor Susceptibility of Bituminous Mixtures 1 308 Bulk Specific Gravity and Weight Per Cubic Foot of Bituminous Mixtures D1188 4.03 Bulk Sp.G. and Density of Compacted Bituminous Mixtures, ParaffinCoated Specimens 310 Asphalt and Moisture Contents of Bituminous Mixtures by Hot Solvent 5 D2172 4.03 Extraction of Bitumen from Bituminous Paving Mixtures (Method A, B, or C) 6,10 312 Design and Testing of Class “A” and “B” Cement Treated Base 1 338 Cement or Lime Content in Treated Aggregate by the Titration Method 1 339 Determination of Distributor Spread Rate
D2995 4.03 Determining Application Rate of Bituminous Distributors 362 Asphalt Content of Bituminous Mixtures by Vacuum Extraction 5 D2172 4.03 Quantitative Extraction of Bitumen from Bituminous Paving Mixtures (Method “E”)
6 366 Stabilometer Value 1
367 Recommending Optimum Bitumen Content (OBC.) 1
370 Determining Moisture Content of Asphalt Mixtures or Mineral Agg., Microwave Ovens
D4643 4.08 Determination of Water (Moisture) Content of Soil by the Microwave Oven Method
375 In-place Density & Relative Compaction of AC Pavement (nuclear) 5,7,12 D2950 4.03 Density of Bituminous Concrete In-place by the Nuclear Method 6,7 379 Asphalt Content of Bituminous Mixtures by use of the Troxler Nuclear Gage 5,8 D4125 4.03 Asphalt Content of Bituminous Mixtures by the Nuclear Method 6,8 405 Chemical Analysis of Water 1
415 Chloride Content in Organic Additives for Portland Cement Concrete 1 752
Local Assistance Procedures Manual Exhibit 16-S
Caltrans Test Method- ASTM Test Method Conversion Chart
January 2018
CTM - ASTM Testing Procedures - for local agency use only Use this CTM - ASTM conversion chart to assist you in determining acceptance test requirements and frequencies, as detailed in Caltrans Construction Manual Chapter 6, “Sampling and Testing.” Refer to the Agency, special provisions, contract plans, and applicable standard specifications, for correct sampling and test methods (ASTM-CTM).
CTM ASTM Book of
Standard
TEST PROCEDURE NOTES
504 Air Content of Freshly Mixed Concrete by the Pressure Method C231 4.02 Air Content of Freshly Mixed Concrete by the Pressure Method 515 Relative Mortar Strength of Portland Cement Concrete Sand 1 518 Unit Weight of Fresh Concrete
C138 4.02 Unit Weight, Yield, and Air Content (Gravimetric) of Concrete 521 Compressive Strength of Molded Concrete Cylinders
C39 4.02 Compressive Strength of Cylindrical Concrete Specimens 523 Flexural Strength of Concrete (using simple beam with center-point loading)
1 C293 4.02 Flexural Strength of Concrete (using simple beam with center-point loading)
C78 4.02 Flexural Strength of Concrete (using simple beam with third-point loading)
528 Freeze Thaw Resistance of Aggregates in Air-Entrained Concrete 1 529 Proportions of Coarse Aggregate in Fresh Concrete 1 530 Determining the Effect of H2O-Reducing and Set-Retard. Admix.
Drying Shrinkage PCC
1 533 Ball Penetration in Fresh Portland Cement Concrete C360 4.03 Ball Penetration in Fresh Portland Cement Concrete C143 4.02 Slump of Freshly Mixed PCC
539 Sampling Fresh Concrete
C172 4.02 Sampling Freshly Mixed Concrete
540 Making, Handling, & Storing Concrete Compressive. Test Specimens in the Field
C31 4.02 Making & Curing Concrete Test Specimens in the Field 541 Flow of Grout Mixtures (flow cone method) 1
543 Air Content of Freshly Mixed Concrete by the Volumetric Method C173 4.02 Air Content of Freshly Mixed Concrete by the Volumetric Method 548 Evaluation of Aggregate for Lean Concrete Base (LCB.) 1 753
Local Assistance Procedures Manual Exhibit 16-S
Caltrans Test Method- ASTM Test Method Conversion Chart
January 2018
Notes
1. Use the CALTRANS Method.
2. Use the methods of calculation within the applicable test method first. Refer to CTM 105 as necessary.
3. Use the Caltrans Construction Manual procedures as necessary when ASTM D75 or D979 do not adequately cover the item to be sampled.
4. Use the direct transmission method only, the air gap method shall not be used. All nuclear gages must have local Caltrans District calibration within the last year. The data sheets provided by the local Caltrans District shall be used when determining the inplace density.
5. Sample from the job site, across the mat, immediately behind the paving machine (Caltrans Construction Manual).
6. Sample per ASTM D 979 paragraph 4.2.3., sample from the job site, across the mat, immediately behind the paving machine.
7. All nuclear gages used for this test must be calibrated on the six (6) DNTM&R AC Standard Blocks. The Data sheets provided by the local Caltrans District shall be used when determining the in-place density.
8. Recommended Percent (%) AC method for Rubberized Bituminous Paving mixtures.
9. The hand method of shaking is not authorized and shall not be used. An electromechanical or hand- operated mechanical. Sand Equivalent shaker must be utilized for this test.
10. This Method covers hot solvent, centrifuge, and vacuum extraction.
11. Compaction Apparatus shall be calibrated in accordance with ASTM D 2168, Method B (ASTM Book 4.08).
12. Test Maximum Density (TMD) shall be performed by Caltrans Test Method 375, Section F. Test Max. Density.
13. Splitters must be of the fixed riffle type (no adjustable splitters). 754
EXHIBIT D
ACKNOWLEDGEMENT OF MONUMENT RESPONSIBILITY
01300
311
755
1740 D Street │ South Lake Tahoe, CA 96150 │ (530) 542-6030 │www.cityofslt.us Public Works Department
Acknowledgement of Monument Responsibility
“Pre-Construction”
Monument Preservation prior to permitted construction activity I, _____________________, a duly Licensed Land Surveyor or Licensed Civil Engineer (Please print)
legally authorized to practice Land Surveying, License No. _____________, hereby acknowledge and accept all responsibility for the monument preservation as required per Section 8771(a-f) of the Business and Professions Code within the bounds of the construction activity authorized by the City Contract No. _______________.
Construction Site Address (Project Name):___________________________________.
I further acknowledge that I am hereby responsible for the Acknowledgement of Monument Preservation prior to final acceptance of the construction activity authorized by the City Contract No. _______________.
______________________________ Seal
Signature – Land Surveyor Responsible for
Monument Preservation
______________________________
Date
Requirements Needed Prior to Construction Commencing:
Exhibit of agreed definition of Monument Preservation Zone.
Acknowledging Surveyor agrees to provide County Surveyor draft PreConstruction Corner Record(s) or Record of Survey within a specified time limit depending on the number of monuments involved.
756
1740 D Street │ South Lake Tahoe, CA 96150 │ (530) 542-6030 │www.cityofslt.us Public Works Department
Acknowledgement of Monument Preservation
“Post-Construction”
Monument Preservation prior to final acceptance of permitted construction activity I, _____________________, a duly Licensed Land Surveyor or Licensed Civil Engineer (Please print)
legally authorized to practice Land Surveying, License No. _____________, hereby acknowledge and accept all responsibility for the monument preservation as required per Section 8771(a-f) of the Business and Professions Code within the bounds of the construction zone authorized by the City Contract No. _______________.
Construction Site Address (Project Name):___________________________________.
I hereby state that all monuments within the bounds of the construction activity authorized by City Contract No. _______________ are in the original location or have been reset in accordance with Section 8771(a-f) of the Business and Professions Code. ______________________________ Seal
Signature – Land Surveyor Responsible for
Monument Preservation
______________________________
Date
Requirements Needed Prior to Issuing Notice of Completion:
Exhibit confirming original agreed definition of Monument Preservation Zone.
Draft copy of Corner Record(s) or Record of Survey.
757
EXHIBIT E
SWPPP
01300
312
758
Bijou Park Connector Trail 1 March 2025
STORMWATER POLLUTION PREVENTION PLAN
for
Bijou Park Connector Trail
Legally Responsible Person (LRP):
City of South Lake Tahoe Public Works
1740 D Street, South Lake Tahoe, CA 96150
Anush Nejad, PE
(530) 542-6031
Approved Signatory:
Prepared for:
Anush Nejad, PE
City of South Lake Tahoe
1740 D Street, South Lake Tahoe, CA 96150
Project Address:
1201 & 1301 Al Tahoe Blvd, South Lake Tahoe, California SWPPP Prepared by:
Eastern Sierra Engineering
PO Box 1819, Zephyr Cove, NV 89448
Jennifer G. Roman, PE, QSD
SWPPP Preparation Date
5/1/2025
Estimated Project Dates:
Start of Construction 7/1/2025 Completion of Construction 10/30/2025 759
Bijou Park Connector Trail i March 2025
Table of Contents
Table of Contents ........................................................................................................................... i Qualified SWPPP Developer ........................................................................................................ 1 Legally Responsible Person .......................................................................................................... 1 Amendment Log ............................................................................................................................ 2 Section 1 SWPPP Requirements ........................................................................................ 3
1.1 Introduction ..................................................................................................................... 3
1.2 Permit Registration Documents ...................................................................................... 3
1.3 SWPPP Availability and Implementation ....................................................................... 4
1.4 SWPPP Amendments...................................................................................................... 4
1.5 Retention of Records....................................................................................................... 5
1.6 Required Non-Compliance Reporting ............................................................................ 6
1.7 Annual Report ................................................................................................................. 6
1.8 Changes to Permit Coverage ........................................................................................... 6 Section 2 Project Information ............................................................................................. 6
2.1 Project and Site Description............................................................................................ 6
1.9 Notice of Termination ..................................................................................................... 6
2.1.1 Site Description ....................................................................................................... 8
2.1.2 Existing Conditions ................................................................................................. 8
2.1.3 Existing Drainage.................................................................................................... 8
2.1.4 Geology and Groundwater ...................................................................................... 8
2.1.5 Project Description.................................................................................................. 8
2.1.6 Developed Condition .............................................................................................. 9
2.2 Permits and Governing Documents ................................................................................ 9
2.3 Stormwater Run-On from Offsite Areas ....................................................................... 10
2.4 Findings of the Construction Site Sediment and Receiving Water Risk Determination 10 2.5 Construction Schedule .................................................................................................. 11
2.6 Potential Construction Activity and Pollutant Sources ................................................. 11
2.7 Identification of Non-Stormwater Discharges .............................................................. 11
2.8 Required Site Map Information .................................................................................... 12 Section 3 Best Management Practices .............................................................................. 13 760
Bijou Park Connector Trail ii March 2025
3.1 Schedule for BMP Implementation .............................................................................. 13
3.2 Erosion and Sediment Control ...................................................................................... 13
3.2.1 Erosion Control ..................................................................................................... 13
3.2.2 Sediment Controls ................................................................................................. 16
3.3 Non-Stormwater Controls and Waste and Materials Management .............................. 18
3.3.1 Non-Stormwater Controls ..................................................................................... 18
3.3.2 Materials Management and Waste Management .................................................. 21 A licensed service will deliver and maintain portable restrooms to the project area. The restrooms will be located a minimum of 50' away from concentrated flows of storm water, drainage courses and downstream inlets. Portable restrooms will be inspected daily by the contractor, weekly by the WPCM, and before, during, and after any storm events. ................ 24
3.4 Post construction Stormwater Management Measures ................................................. 24 Section 4 BMP Inspection, and Maintenance, and Rain Event Action Plans .............. 25
4.1 BMP Inspection and Maintenance ................................................................................ 25
4.2 Rain Event Action Plans ............................................................................................... 25 Section 5 Training .............................................................................................................. 27 Section 6 Responsible Parties and Operators .................................................................. 28
6.1 Responsible Parties ....................................................................................................... 28
6.2 Contractor List .............................................................................................................. 29 Section 7 Construction Site Monitoring Program .......................................................... 30
7.1 Purpose ...................................................................................................................... 30
7.2 Applicability of Permit Requirements ...................................................................... 30
7.3. Weather and Rain Event Tracking ............................................................................ 31
7.3.1 Weather Tracking.............................................................................................. 31
7.3.2 Rain Gauges ...................................................................................................... 31
7.4 Monitoring Locations................................................................................................ 31
7.5 Safety and Monitoring Exemptions .......................................................................... 31
7.6 Visual Monitoring ..................................................................................................... 32
7.6.1 Routine Observations and Inspections .............................................................. 32
7.6.1.1 Routine BMP Inspections ............................................................................. 32
7.6.1.2 Non-Stormwater Discharge Observations .................................................... 33
7.6.2 Rain-Event Triggered Observations and Inspections ....................................... 33
7.6.2.1 Visual Observations Prior to a Forecasted Qualifying Rain Event............... 33 761
Bijou Park Connector Trail iii March 2025
7.6.2.2 BMP Inspections During an Extended Storm Event..................................... 33
7.6.2.3 Visual Observations Following a Qualifying Rain Event............................. 33
7.6.3 Visual Monitoring Procedures .......................................................................... 34
7.6.4 Visual Monitoring Follow-Up and Reporting................................................... 35
7.6.5 Visual Monitoring Locations ............................................................................ 35
7.7 Water Quality Sampling and Analysis ...................................................................... 36
7.7.1 Sampling and Analysis Plan for Non-Visible Pollutants in Stormwater Runoff Discharges ......................................................................................................................... 36
7.7.1.1 Sampling Schedule........................................................................................ 37
7.7.1.2 Sampling Locations ...................................................................................... 37
7.7.1.3 Monitoring Preparation ................................................................................. 40
7.7.1.4 Analytical Constituents ................................................................................. 40
7.7.1.5 Sample Collection ......................................................................................... 41
7.7.1.6 Sample Analysis............................................................................................ 41
7.7.1.7 Data Evaluation and Reporting ..................................................................... 43
7.7.2 Sampling and Analysis Plan for pH and Turbidity in Stormwater Runoff Discharges ......................................................................................................................... 43
7.7.2.1 Sampling Schedule........................................................................................ 43
7.7.2.2 Sampling Locations ...................................................................................... 44
7.7.2.3 Monitoring Preparation ................................................................................. 44
7.7.2.4 Field Parameters............................................................................................ 45
7.7.2.5 Sample Collection ......................................................................................... 46
7.7.2.6 Field Measurements ...................................................................................... 46
7.7.2.7 Data Evaluation and Reporting ..................................................................... 46
7.7.3 Sampling and Analysis Plan for pH, Turbidity, and SSC in Receiving Water . 47
7.7.4 Sampling and Analysis Plan for Non-Stormwater Discharges ......................... 47
7.7.4.1 Sampling Schedule........................................................................................ 48
7.7.4.2 Sampling Locations ...................................................................................... 48
7.7.4.3 Monitoring Preparation ................................................................................. 49
7.7.4.4 Analytical Constituents ................................................................................. 50
7.7.4.5 Sample Collection ......................................................................................... 50
7.7.4.6 Sample Analysis............................................................................................ 50
7.7.4.7 Data Evaluation and Reporting ..................................................................... 50 762
Bijou Park Connector Trail iv March 2025
7.7.5 Sampling and Analysis Plan for Other Pollutants Required by the Regional Water Board ...................................................................................................................... 53
7.7.6 Training of Sampling Personnel ....................................................................... 53
7.7.7.1 Sample Collection ......................................................................................... 53
7.7.7.2 Sample Handling ........................................................................................... 54
7.7.7.3 Sample Documentation Procedures .............................................................. 55
7.8 Active Treatment System Monitoring ...................................................................... 55
7.9 Bioassessment Monitoring ........................................................................................ 55
7.10 Watershed Monitoring Option .................................................................................. 55
7.11 Quality Assurance and Quality Control .................................................................... 56
7.11.1 Field Logs ......................................................................................................... 56
7.11.2 Clean Sampling Techniques ............................................................................. 56
7.11.3 Chain of Custody .............................................................................................. 56
7.11.4 QA/QC Samples................................................................................................ 56
7.11.4.1 Field Duplicates ........................................................................................... 57
7.11.4.2 Equipment Blanks ........................................................................................ 57
7.11.4.3 Field Blanks ................................................................................................. 57
7.11.4.4 Travel Blanks ............................................................................................... 57
7.11.5 Data Verification ............................................................................................... 57
7.12 Records Retention ..................................................................................................... 58 CSMP Attachment 1: Weather Reports ................................................................................ 60 CSMP Attachment 2: Monitoring Records ........................................................................... 61 CSMP Attachment 3: Example Forms .................................................................................. 62 CSMP Attachment 4: Field Meter Instructions .................................................................... 70 CSMP Attachment 5: Supplemental Information .............................................................. 107 Section 8 References ........................................................................................................ 108 Appendix A: Calculations ...................................................................................................... 109 Appendix B: Site Maps ........................................................................................................... 111 Appendix C: Permit Registration Documents ....................................................................... 119 Appendix D: SWPPP Amendment Certifications ................................................................. 121 Appendix E: Submitted Changes to PRDs ............................................................................ 123 Appendix F: Construction Schedule ..................................................................................... 125 Appendix G: Construction Activities, Materials Used, and Associated Pollutants .............. 127 763
Bijou Park Connector Trail v March 2025
Appendix H: CASQA Stormwater BMP Handbook Portal: Construction Fact Sheets ...... 129 Appendix I: BMP Inspection Form ...................................................................................... 190 Appendix J: Project Specific Rain Event Action Plan Template ......................................... 197 Appendix K: Training Reporting Form................................................................................. 200 Appendix L: Responsible Parties ........................................................................................... 202 Appendix M: Contractors and Subcontractors ...................................................................... 206 Appendix N: Construction General Permit ........................................................................... 207 Appendix O: Spill Response Plan ................................................Error! Bookmark not defined. 764
Bijou Park Connector Trail 1 March 2025
Qualified SWPPP Developer
Approval and Certification of the Stormwater Pollution Prevention Plan Project Name: Bijou Park Connector Trail
Project Number/ID: 21240
“This Stormwater Pollution Prevention Plan and Attachments were prepared under my direction to meet the requirements of the California Construction General Permit (SWRCB Orders No. 2009-009- DWQ as amended by Order 2010-0014-DWQ and Order 2012-0006-DWQ). I certify that I am a Qualified SWPPP Developer in good standing as of the date signed below.”
5/1/2025
QSD Signature
Jennifer G. Roman, PE, QSD
Date
710
QSD Name
Principal Engineer, Eastern Sierra
Engineering
QSD Certificate Number
(775) 291-6337
Title and Affiliation
[email protected]
Telephone Number
Email
765
Bijou Park Connector Trail 1 March 2025
Legally Responsible Person
Approval and Certification of the Stormwater Pollution Prevention Plan Project Name: Bijou Park Connector Trail
Project Number/ID 21240
“I certify under penalty of law that this document and all Attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, to the best of my knowledge and belief, the information submitted is, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
City of South Lake Tahoe Public Works
Legally Responsible Person [if organization]
Signature of Legally Responsible Person or Approved
Signatory
Date
Anush Nejad, PE (530) 542-6031
Name of Legally Responsible Person or Approved
Signatory
Telephone Number
766
Bijou Park Connector Trail 2 March 2025
Amendment Log
Project Name: Bijou Park Connector Trail
Project Number/ID 21240
Amendment
No. Date Brief Description of Amendment, include section and page number Prepared and Approved
By
Name:
QSD#
Name:
QSD#
Name:
QSD#
Name:
QSD#
Name:
QSD#
Name:
QSD#
Name:
QSD#
Name:
QSD#
Name:
QSD#
767
Bijou Park Connector Trail 3 March 2025
Section 1 SWPPP Requirements
1.1 INTRODUCTION
The Bijou Park Connector Trail project comprises approximately 1.3 AC and is located 1201 & 1301 Al Tahoe Blvd in South Lake Tahoe, California. The property is owned by City of South Lake Tahoe and is being developed by City of South Lake Tahoe Public Works. The project’s location is shown in the Improvement Plans in Appendix B.
This Stormwater Pollution Prevention Plan (SWPPP) is designed to comply with California’s General Permit for Stormwater Discharges Associated with Construction Activity in the Lake Tahoe Hydrologic Unit, Counties of Alpine, El Dorado, and Placer (General Permit) Order No.
R6T-2016-0010 (NPDES No. CAG616002) issued by the California Regional Water Quality Control Board, Lahontan Region (Lahontan). This SWPPP has been prepared following the SWPPP Template provided on the California Stormwater Quality Association Stormwater Best Management Practice Handbook Portal: Construction (CASQA, 2012). In accordance with the General Permit, Section IX, this SWPPP is designed to address the following:
1. Identify pollutant sources including sediment sources that may affect the quality of storm water discharges associated with construction activity.
2. Identify non-storm water discharges.
3. Identify, construct, implement, and maintain BMPs to reduce or eliminate pollutants in storm water discharges and authorized non-storm water discharges from the construction site.
4. Identify all effluent discharge outfall locations, sampling and analysis strategy and protocols, and a sampling schedule for discharges from the identified outfalls for the project area.
Calculations and design details as well as BMP controls are included in Appendix A.
Rain Event Action Plans (REAPs) will be prepared as discussed in Section 4.2.
1.2 PERMIT REGISTRATION DOCUMENTS
Required Permit Registration Documents (PRDs) shall be submitted to the State Water Resources Control Board (State Water Board) via the Stormwater Multi Application and Report Tracking System (SMARTS) by the Legally Responsible Person (LRP), or authorized personnel (i.e., Approved Signatory) under the direction of the LRP. The project-specific PRDs include:
1. Notice of Intent (NOI);
2. Site Map;
3. Annual Fee;
4. Signed Certification Statement (LRP Certification is provided electronically with SMARTS PRD submittal); and
5. SWPPP.
768
Bijou Park Connector Trail 4 March 2025
Site Maps can be found in Appendix B. A copy of the submitted PRDs shall also be kept in Appendix C along with the Waste Discharge Identification (WDID) confirmation.
1.3 SWPPP AVAILABILITY AND IMPLEMENTATION
The discharger shall make the SWPPP and any amendments available at the construction site during working hours (see Section 7.5 of CSMP for working hours) while construction is occurring and shall be made available upon request by a representative of the Lahontan Regional Water Board or any local storm water management agency which receives the storm water discharge. When the original SWPPP is retained by a crewmember in a construction vehicle and is not currently at the construction site, current copies of the BMPs and map/drawing will be left with the field crew and the original SWPPP shall be made available via a request by radio/telephone. Upon request by members of the public, Dischargers shall make available for review a copy of the SWPPP directly to the requestor
The SWPPP shall be implemented concurrently with the start of ground disturbing activities.
1.4 SWPPP AMENDMENTS
The SWPPP should be revised when:
If there is a General Permit violation.
When there is a reduction or increase in total disturbed acreage. BMPs do not meet the objectives of reducing or eliminating pollutants in stormwater discharges.
Additionally, the SWPPP shall be amended when:
There is a change in construction or operations which may affect the discharge of pollutants to surface waters, groundwater(s), or a municipal separate storm sewer system (MS4);
When there is a change in the project duration that changes the project’s risk level; or When deemed necessary by the QSD. The QSD has determined that the changes listed in Table 1.1 can be field determined by the QSP. All other changes shall be made by the QSD as formal amendments to the SWPPP.
The following items shall be included in each amendment:
Who requested the amendment;
The location of proposed change;
The reason for change;
The original BMP proposed, if any; and
The new BMP proposed.
Amendment shall be logged at the front of the SWPPP and certification kept in Appendix D.
The SWPPP text shall be revised replaced, and/or hand annotated as necessary to properly convey the amendment. SWPPP amendments must be made by a QSD. The following changes 769
Bijou Park Connector Trail 5 March 2025
have been designated by the QSD as "to be field determined” and constitute minor changes that the QSP may implement based on field conditions.
Table 1.1 List of Changes to be Field Determined
Candidate changes for field location or
determination by QSP(1)
Check changes that can be field located
or field determined by QSP
Increase quantity of an Erosion or Sediment Control
Measure
Relocate/Add stockpiles or stored materials
Relocate or add toilets
Relocate vehicle storage and/or fueling locations
Relocate areas for waste storage
Relocate water storage and/or water transfer location
Changes to access points (entrance/exits)
Change type of Erosion or Sediment Control Measure
Changes to location of erosion or sediment control
Minor changes to schedule or phases
Changes in construction materials
(1) Any field changes not identified for field location or field determination by QSP must be approved by QSD
1.5 RETENTION OF RECORDS
Paper or electronic records of documents required by this SWPPP shall be retained for a minimum of three years from the date generated or date submitted, whichever is later, for the following items:
SWPPP
Inspection Reports
Amendments
Annual Reports
These records shall be available at the Site until construction is complete. Records assisting in the determination of compliance with the General Permit shall be made available within a reasonable time, to the Regional Water Board, State Water Board or U.S. Environmental Protection Agency (EPA) upon request. Requests by the Regional Water Board for retention of records for a period longer than three years shall be adhered to. 770
Bijou Park Connector Trail 6 March 2025
1.6 REQUIRED NON-COMPLIANCE REPORTING
If a General Permit discharge violation occurs the QSP shall immediately notify the LRP. The LRP shall include information on the violation with the Annual Report. Corrective measures will be implemented immediately following identification of the discharge or written notice of non-compliance from the Regional Water Board. Discharges and corrective actions must be documented and include the following items:
The date, time, location, nature of operation and type of unauthorized discharge. The cause or nature of the notice or order.
The control measures (BMPs) deployed before the discharge event, or prior to receiving notice or order.
The date of deployment and type of control measures (BMPs) deployed after the discharge event, or after receiving the notice or order, including additional measures installed or planned to reduce or prevent re-occurrence.
Reporting requirements for Numeric Action Levels (NALs) exceedances are discussed in Section
7.7.2.7. 1.7 ANNUAL REPORT
The General Permit requires that permittees prepare, certify, and electronically submit an Annual Report no later than November 30th of each year for the period of October 16th of the prior year through October 15th. Reporting requirements are identified in Section V of the General Permit.
Annual reports will be filed in SMARTS and in accordance with information required by the online forms.
1.8 CHANGES TO PERMIT COVERAGE
The General Permit allows for the reduction or increase of the total acreage covered under the General Permit when: a portion of the project is complete and/or conditions for termination of coverage have been met; when ownership of a portion of the project is purchased by a different entity; or when new acreage is added to the project.
Modified PRDs shall be filed electronically within 30 days of a reduction or increase in total disturbed area if a change in permit covered acreage is to be sought. The SWPPP shall be modified appropriately, shall be logged at the front of the SWPPP and cetrification of SWPPP amendments are to be kept in Appendix D. Updated PRDs submitted electronically via SMARTS can be found in Appendix E.
Section 2 Project Information
2.1 PROJECT AND SITE DESCRIPTION
1.9 NOTICE OF TERMINATION
A Notice of Termination (NOT) must be submitted electronically by the LRP via SMARTS to terminate coverage under the General Permit. The NOT must include a final Site Map and representative photographs of the project site that demonstrate final stabilization has been 771
Bijou Park Connector Trail 7 March 2025
achieved. The NOT shall be submitted within 90 days of completion of construction. The Regional Water Board will consider a construction site complete when the conditions of the General Permit, Section II.D have been met.
772
Bijou Park Connector Trail 8 March 2025
2.1.1 Site Description
The Bijou Park Connector Trail project site comprises approximately 1.3 AC and is located at 1201 & 1301 Al Tahoe Blvd, in South Lake Tahoe, California. The project site is located on Al Tahoe Boulevard just east of the intersection of Johnson Boulevard and Al Tahoe Boulevard, approximately 0.4 miles east of Highway 50 in South Lake Tahoe. The project is located at 38°55'45.05"N, 119°58'7.44W" and is identified in the Improvement Plans in Appendix B.
2.1.2 Existing Conditions
As of the initial date of this SWPPP, the project site is the existing Bijou Community Park, owned and managed by the City of South Lake Tahoe. There are no known historic sources of contamination at the site.
2.1.3 Existing Drainage
The project site topography ranges from relatively level to rolling. The elevation of the project site ranges from 6,270 feet to 6,285 feet above mean sea level (msl). Surface drainage at the site currently flows to the west on the northern portion of the site towards Trout Creek, and to the east on the southern portion of the site, towards Bijou Creek. Neither creek flows through the project site. Stormwater is conveyed through surface runoff. Stormwater discharges from the site, are not considered direct discharges, as defined by the State Water Board into either Trout or Bijou Creeks. Existing site topography, drainage patterns, and stormwater conveyance systems are shown on the Improvement Plans for Bijou Park Connector Trail.
The project discharges to Lake Tahoe that is listed for water quality impairment on the most recent 303(d)-list for:
Nitrogen
Phosphorous
Sedimentation/Siltation
2.1.4 Geology and Groundwater
The site is underlain by loamy coarse sand per the NRCS Soil Survey. Groundwater occurs beneath the site more than 80 inches below ground surface. The groundwater gradient is toward the west on the northern portion of the site and toward the east on the southern portion of the site.
2.1.5 Project Description
Project grading will occur on approximately 1.3 acres of the project, which comprises approximately 100 percent of the total area disturbed by construction. The limits of grading are based on the daylight for the trail cut and fill slopes, culvert and drainage improvements, and ramps as shown in the Improvement Plans for the Bijou Park Connector Trail. The total graded material is estimated to be 770 cubic yards. Approximately 800 cubic yards of fill material, primarily aggregate base for asphalt concrete pavement and concrete curb and ramp sections, will be imported during grading activities. Excess native soil materials that cannot be reused as trail fill, approximately 370 cubic yards will be hauled away and disposed of at a TRPA773 Bijou Park Connector Trail 9 March 2025
approved location or outside of the Tahoe basin. Soil will be stockpiled at the staging area shown on the Site Map in Appendix B. Construction activities will not be phased.
2.1.6 Developed Condition
Existing drainage paths are shown on in the Improvement Plans in Appendix B. The proposed drainage patterns will match the existing drainage patterns and will continue to be conveyed to Trout and Bijou Creeks. The project includes the installation of a sediment trap on the discharge from an existing drop inlet, and installation of a culvert where the proposed trail crosses an existing drainage. For the below table, the construction site area is calculated as the area disturbed by construction activities. The majority of the construction activities will occur in previously-disturbed areas; staging is proposed on existing paved surface as shown in the Site Map in Appendix B.
Table 2.1 Construction Site Estimates
Construction site area 1.3 acres
Percent impervious before construction 25 %
Runoff coefficient before construction 0.4
Percent impervious after construction 30 %
Runoff coefficient after construction 0.6
2.2 PERMITS AND GOVERNING DOCUMENTS
In addition to the General Permit, the following documents have been taken into account while preparing this SWPPP
Regional Water Board requirements
Basin Plan requirements
Contract Documents
Air Quality Regulations and Permits
Federal Endangered Species Act
National Historic Preservation Act/Requirements of the State Historic Preservation Office
State of California Endangered Species Act
Clean Water Act Section 401 Water Quality Certifications and 404 Permits CA Department of Fish and Game 1600 Streambed Alteration Agreement 774
Bijou Park Connector Trail 10 March 2025
2.3 STORMWATER RUN-ON FROM OFFSITE AREAS
Run-on to the site is generated by 35 acres of park and ballfield development in the Bijou Creek watershed and minimally developed 8 acres of Trout Creek watershed. Run-on via sheet flow will be prevented from entering the project area; however, the installation of the sediment trap and culvert crossing could occur when channelized run-on flow is conveyed.
The stormwater runoff drainage area contributing to offsite run-on is estimated to be approximately 44 acres. The anticipated runoff coefficients range from 0.4 to 0.6. The anticipated off-site run-on to the project site is estimated to be 29 cfs for the compliance storm; calculations are included in Appendix A.
The General Permit requires that temporary BMPs be implemented to direct offsite run-on away from disturbed areas through the use of runoff controls. The following BMPs will be implemented: fiber rolls. These BMPs will be located upstream of the work and staging areas to divert upstream sheet flow around the work and staging areas. The off-site drainage areas and associated stormwater conveyance facilities or BMPs are shown on in the Improvement Plans in Appendix B.
2.4 FINDINGS OF THE CONSTRUCTION SITE SEDIMENT AND
RECEIVING WATER RISK DETERMINATION
There is no risk level in the Tahoe Construction General Permit (CGP). All projects are considered the same risk.
All surface flows generated within the project site that discharge to surface waters or municipal storm sewer collection systems shall not contain constituents in excess of the following concentrations:
Effluent Limitations
Parameter Units Maximum Daily Effluent
Limitations for Discharge
to Surface Waters
Total Nitrogen (as N) mg/L 0.5
Total Phosphorus (as P) mg/L 0.1
Total Iron mg/L 0.5
Turbidity NTU 20*
Grease and Oil mg/L 2
Note* - For ATS: 10 NTU for daily flow-weighted average and 20 NTU for any single sample.
If constituent concentrations of waters entering the project area exceed the numerical limitations specified above, there shall be no increase in the constituent concentrations in the waters that are discharged from the project area.
All surface flows generated within the project area, or as a result of the development of the project that are discharged to surface waters or municipal storm water collection systems shall not contain the following:
775
Bijou Park Connector Trail 11 March 2025
Substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, or animal life; and,
Coliform organisms attributable to human wastes.
2.5 CONSTRUCTION SCHEDULE
The proposed construction schedule limits earthwork-related activities between May 1 to October 15, 2025 unless a grading exception is obtained. Modification or extension of the schedule (start and end dates) may affect risk determination and permit requirements. The LRP shall contact the QSD if the schedule changes during construction to address potential impact to the SWPPP.
2.6 POTENTIAL CONSTRUCTION ACTIVITY AND POLLUTANT SOURCES Appendix G includes a list of construction activities and associated materials that are anticipated to be used onsite. These activities and associated materials will or could potentially contribute pollutants, other than sediment, to stormwater runoff.
The anticipated activities and associated pollutants were used in Section 3 to select the Best Management Practices for the project. Location of anticipated pollutants and associated BMPs are shown on the Site Map in Appendix B.
For sampling requirements for non-visible pollutants associated with construction activity please refer to Section 7.7.1. For a full and complete list of onsite pollutants, refer to the Material Safety Data Sheets (MSDS), which are retained onsite at the construction trailer.
2.7 IDENTIFICATION OF NON-STORMWATER DISCHARGES
Non-stormwater discharges consist of discharges which do not originate from precipitation events. The General Permit provides allowances for specified non-stormwater discharges that do not cause erosion or carry other pollutants.
Non-stormwater discharges into storm drainage systems or waterways, which are not authorized under the General Permit and listed in the SWPPP, or authorized under a separate NPDES permit, are prohibited.
No non-stormwater discharges that are authorized from this project site.
Activities at this site that may result in unauthorized non-stormwater discharges include:
Sawcutting
Demolition
Vehicle & Equipment Fueling & Maintenance
Steps will be taken, including the implementation of appropriate BMPs, to ensure that unauthorized discharges are eliminated, controlled, disposed, or treated on-site. Discharges of construction materials and wastes, such as fuel or paint, resulting from dumping, spills, or direct contact with rainwater or stormwater runoff, are also prohibited.
The following discharge(s) have been authorized by (a) regional NPDES permit(s):
776
Bijou Park Connector Trail 12 March 2025
None
2.8 REQUIRED SITE MAP INFORMATION
The construction project’s Site Map(s) showing the project location, surface water boundaries, geographic features, construction site perimeter and general topography and other requirements identified in Attachment B of the General Permit is located in Appendix B. Table 2.5 identifies Map or Sheet Nos. where required elements are illustrated.
Table 2.5 Required Map Information
Included on
Map/Plan Sheet
No. (1)
Required Element
Improvement Plans The project’s surrounding area (vicinity) Improvement Plans Site layout
Improvement Plans Construction site boundaries
Site Map Drainage areas
Improvement Plans Discharge locations
Site Map Sampling locations
Improvement Plans Areas of soil disturbance (temporary or permanent) Improvement Plans Active areas of soil disturbance (cut or fill) Improvement Plans Locations of runoff BMPs
Improvement Plans Locations of erosion control BMPs
Improvement Plans Locations of sediment control BMPs
Not Applicable ATS location (if applicable)
Not Applicable Locations of sensitive habitats, watercourses, or other features which are not to be disturbed
Improvement Plans Locations of all post construction BMPs Site Map Waste storage areas
Site Map Vehicle storage areas
Site Map Material storage areas
Site Map Entrance and Exits
Site Map Fueling Locations
Notes: (1) Indicate maps or drawings that information is included on (e.g., Vicinity Map, Site Map, Drainage Plans, Grading Plans, Progress Maps, etc.)
* All areas disturbed by construction will be stabilized, revegetated and mulched in accordance with the TRPA permit issued for the project. The approved construction storage and staging areas will be stabilized and mulched with no revegetation in accordance with the TRPA permit. 777
Bijou Park Connector Trail 13 March 2025
Section 3 Best Management Practices
3.1 SCHEDULE FOR BMP IMPLEMENTATION
BMPs for the staging areas will be installed prior to the use of each individual staging area.
BMPs for the work areas will be installed as work begins in each area and will be maintained until work in each area is complete and the area is stabilized.
Table 3.1 BMP Implementation Schedule
BMP Implementation Duration
Erosion Control
EC-1, Scheduling Prior to Construction Entirety of Project EC-2, Preservation of Existing
Vegetation Start of Construction Entirety of Project
Sediment
Control
Fiber Rolls Start of Construction in
Work Area
Until Work Area is
stabilized
Tracking
Control
Street Sweeping Start of Excavation Entirety of Project
Wind
Erosion
Wind Erosion Control Start of Excavation Entirety of Project
3.2 EROSION AND SEDIMENT CONTROL
Erosion and sediment controls are required by the General Permit to provide effective reduction or elimination of sediment related pollutants in stormwater discharges and authorized nonstormwater discharges from the Site. Applicable BMPs are identified in this section for erosion control, sediment control, tracking control, and wind erosion control.
3.2.1 Erosion Control
Erosion control, also referred to as soil stabilization, consists of source control measures that are designed to prevent soil particles from detaching and becoming transported in stormwater runoff. Erosion control BMPs protect the soil surface by covering and/or binding soil particles.
This construction project will implement the following practices to provide effective temporary and final erosion control during construction:
778
Bijou Park Connector Trail 14 March 2025
1. Preserve existing vegetation where required and when feasible.
2. The area of soil disturbing operations shall be controlled such that the Contractor is able to implement erosion control BMPs quickly and effectively.
3. Stabilize non-active areas within 14 days of cessation of construction activities or sooner if stipulated by local requirements.
4. Control erosion in concentrated flow paths by applying erosion control blankets, check dams, erosion control seeding or alternate methods.
5. Prior to the completion of construction, apply permanent erosion control to remaining disturbed soil areas.
Sufficient erosion control materials shall be maintained onsite to allow implementation in conformance with this SWPPP.
The following temporary erosion control BMP selection table indicates the BMPs that shall be implemented to control erosion on the construction site. Fact Sheets for temporary erosion control BMPs are provided in Appendix H.
779
Bijou Park Connector Trail 15 March 2025
Table 3.2 Temporary Erosion Control BMPs CASQA Fact Sheet BMP Name
Meets a
Minimum
Requirement(1)
BMP Used
If not used, state reason
YES NO
EC-1 Scheduling X EC-2 Preservation of Existing Vegetation X EC-3 Hydraulic Mulch (2) X Not Applicable EC-4 Hydroseed (2) X Not Applicable EC-5 Soil Binders (2) X Not Applicable EC-6 Straw Mulch (2) X Not Applicable EC-7 Geotextiles and Mats (2) X Not Applicable EC-8 Wood Mulching (2) X Not Applicable EC-9 Earth Dike and Drainage Swales (3) X Not Applicable EC-10 Velocity Dissipation Devices X Not Applicable EC-11 Slope Drains X Not Applicable EC-12 Stream Bank Stabilization X Not Applicable EC-14 Compost Blankets (2) X Not Applicable EC-15 Soil Preparation-Roughening X Not ApplicableEC-16 Non-Vegetated Stabilization (2) X Not Applicable WE-1 Wind Erosion Control X Alternate BMPs Used: If used, state reason:
None
(1) Applicability to a specific project shall be determined by the QSD. (2) The QSD shall ensure implementation of one of the minimum measures listed or a combination thereof to achieve and maintain the Risk Level requirements.
(3) Run-on from offsite shall be directed away from all disturbed areas, diversion of offsite flows may require design/analysis by a licensed civil engineer and/or additional environmental permitting
780
Bijou Park Connector Trail 16 March 2025
These temporary erosion control BMPs shall be implemented in conformance with the following guidelines and as outlined in the BMP Factsheets provided in Appendix H. If there is a conflict between documents, the Improvement Plans will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Improvement Plans prevail over standard details included in the Fact Sheets. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets.
Scheduling
The project will sequence construction activities with the installation of erosion controls and stabilization of disturbed areas prior to predicted storm events. Grading activities will be restricted to the period of May 1 through October 15.
Preservation of Existing Vegetation
Trees will be protected by tree protection fencing located at the dripline. Only areas to be disturbed or where work is planned shall be disturbed during construction. Equipment will be restricted from going past perimeter and vegetation fencing during the project. No disturbance of vegetation outside the planned area of work will be allowed.
Wind Erosion Control
Water will be applied to disturbed soil areas and stockpiles as necessary to control dust and wind erosion.
3.2.2 Sediment Controls
Sediment controls are temporary or permanent structural measures that are intended to complement the selected erosion control measures and reduce sediment discharges from active construction areas. Sediment controls are designed to intercept and settle out soil particles that have been detached and transported by the force of water.
The following sediment control BMP selection table indicates the BMPs that shall be implemented to control sediment on the construction site. Fact Sheets for temporary sediment control BMPs are provided in Appendix H.
781
Bijou Park Connector Trail 17 March 2025
Table 3.3 Temporary Sediment Control BMPs
CASQA
Fact
Sheet
BMP Name
Meets a
Minimum
Requirement(1)
BMP used
If not used, state reason
YES NO
SE-1 Silt Fence (2) (3) X Not ApplicableSE-2 Sediment Basin X Not Applicable SE-3 Sediment Trap X Not Applicable SE-4 Check Dams X Not Applicable SE-5 Fiber Rolls (2)(3) X SE-6 Gravel Bag Berm (3) X Not Applicable SE-7 Street Sweeping X SE-8 Sandbag Barrier X Not Applicable SE-9 Straw Bale Barrier X Not Applicable SE-10 Storm Drain Inlet Protection RL2&3 X Not Applicable SE-11 ATS X Not Applicable SE-12 Manufactured Linear Sediment Controls X Not Applicable SE-13 Compost Sock and Berm (3) X Not Applicable SE-14 Biofilter Bags (3) X Not Applicable TC-1 Stabilized Construction Entrance and Exit X TC-2 Stabilized Construction Roadway X Not Applicable TC-3 Entrance Outlet Tire Wash X Not Applicable Alternate BMPs Used: If used, state reason: (1) Applicability to a specific project shall be determined by the QSD (2) The QSD shall ensure implementation of one of the minimum measures listed or a combination thereof to achieve and maintain the Risk Level requirements
(3)Risk Level 2 &3 shall provide linear sediment control along toe of slope, face of slope, and at the grade breaks of exposed slope 782
Bijou Park Connector Trail 18 March 2025
These temporary sediment control BMPs shall be implemented in conformance with the following guidelines and in accordance with the BMP Fact Sheets provided in Appendix H. If there is a conflict between documents, the Site Map will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Site Map prevail over standard details included in the Site Map. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets.
Fiber Rolls
Fiber rolls will be installed at the perimeter of the construction site and staging areas to treat sheet runoff leaving the construction site, as well as to define the limits of the site to prevent disturbance outside the work limits. Fiber rolls will be secured using stakes or gravel bags to ensure 100% contact with soil surface.
Street Sweeping
Street sweeping will be conducted on a regular basis to prevent buildup of sediment or other pollutants on paved surfaces in the project area. Street sweeping will be used for tracking and on all earthwork operations.
Stabilized Construction Entrance and Exit
Numerous construction staging and storage areas have been approved for use for the project.
Tracking will be managed using temporary construction entrance BMP and sweeping.
3.3 NON-STORMWATER CONTROLS AND WASTE AND MATERIALS
MANAGEMENT
3.3.1 Non-Stormwater Controls
Non-stormwater discharges into storm drainage systems or waterways, which are not authorized under the General Permit, are prohibited. Non-stormwater discharges for which a separate NPDES permit is required by the local Regional Water Board are prohibited unless coverage under the separate NPDES permit has been obtained for the discharge. The selection of nonstormwater BMPs is based on the list of construction activities with a potential for nonstormwater discharges identified in Section 2.7 of this SWPPP.
The following non-stormwater control BMP selection table indicates the BMPs that shall be implemented to control sediment on the construction site. Fact Sheets for temporary nonstormwater control BMPs are provided in Appendix H. A Spill Response Plan is included in Appendix O.
783
Bijou Park Connector Trail 19 March 2025
Table 3.4 Temporary Non-Stormwater BMPs CASQA Fact Sheet BMP Name Meets a
Minimum
Requirement(1)
BMP used
If not used, state reason
YES NO
NS-1 Water Conservation Practices X NS-2 Dewatering Operation X NS-3 Paving and Grinding Operation X NS-4 Temporary Stream Crossing X Not Applicable NS-5 Clear Water Diversion X Not Applicable NS-6 Illicit Connection/Discharge X NS-7 Potable Water/Irrigation X NS-8 Vehicle and Equipment Cleaning X NS-9 Vehicle and Equipment Fueling X NS-10 Vehicle and Equipment Maintenance X NS-11 Pile Driving Operation X Not Applicable NS-12 Concrete Curing X NS-13 Concrete Finishing X Not Applicable NS-14 Material and Equipment Use Over Water X Not Applicable NS-15 Demolition Removal Adjacent to Water X Not Applicable NS-16 Temporary Batch Plants X Alternate BMPs Used: If used, state reason: (1) Applicability to a specific project shall be determined by the QSD 784
Bijou Park Connector Trail 20 March 2025
Non-stormwater BMPs shall be implemented in conformance with the following guidelines and in accordance with the BMP Fact Sheets provided in Appendix H. If there is a conflict between documents, the Site Map will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Site Map prevail over standard details included in the Site Map. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets.
Water Conservation Practices
Water trucks and other water related equipment, rollers, and sweepers will be checked for leaks to minimize water waste. Equipment with leaks will be repaired, or removed from the job.
Dewatering Operation
Groundwater depths are anticipated to be more than 80 inches below ground surface.
Excavations for the trail grading are expected to be a maximum of 30 inches. Minimal dewatering, less than 100 gallons, is expected for the installation of the sediment trap. Nonstorm water encountered during excavation will be filtered and pumped into a water truck and used for dust control on the project site. If the amount of collected water exceeds the amount needed for dust control, the water will be discharged through a temporary sprinkler irrigation system to an upland vegetated area in a manner that does not cause erosion. The discharge of dewatering effluent either for dust control or via sprinkler irrigation will be monitored visually by the QSP throughout effluent application. The QSP will direct the contractor as necessary to reduce application rates to prevent effluent from entering surface water drainages, including ephemeral drainages, and any stormwater conveyance infrastructure, including curb and gutter.
Paving and Grinding Operation
Plastic sheeting will be placed underneath the paver and any emulsion trucks or pots during overnight storage to catch drips or leaks. Residue from grinding, AC cutting, or removal operations will be picked up by mechanical or manual means and disposed of properly. Drainage facilities adjacent to paving or AC cutting operations will be protected to prevent pollutants from entering facilities. Following paving operations and AC sawcutting operations, all paving debris will be removed and swept and drainage facilities will be inspected for paving materials and AC residue. Prior to any forecasted rain event, the asphalt paving machine will be parked on plastic sheeting and the plastic sheeting will cover the asphalt hopper and augers. The plastic sheeting and covers will be removed when damaged and disposed of properly at a waste disposal facility.
Illicit Connection/Discharge
The contractor will implement this BMP throughout the duration of the project.
Potable Water/Irrigation
The contractor will implement this BMP for disposal of water used for pressure testing of the proposed water lines. Chlorinated water used for disinfection will be discharged to the sanitary sewer system with approval from the appropriate agencies, or disposed of at an approved off-site factility.
Vehicle and Equipment Cleaning
Vehicles and equipment will be brought on the job clean and will be removed for subsequent cleaning.
Vehicle and Equipment Fueling
785
Bijou Park Connector Trail 21 March 2025
All level paved surfaces located more than 50 feet from downstream drainage facilities within the project limits are potential fueling areas. Drip pans and absorbent pads will be used to prevent spills and drips during mobile fueling. Absorbent spill clean-up materials and spill kits will be available on all mobile fueling trucks. All leaking equipment will be repaired, or removed from the project.
Vehicle and Equipment Maintenance
Most vehicle and equipment maintenance will be performed offsite, with only minor maintenance, such as adding fluids, oil, or lubricants occurring at the project site. All such maintenance will be performed on level surfaces more than 50 feet from downstream drainage systems. Drip pans and plastic sheeting will be used for on-site maintenance, and absorbent spill cleanup materials and spill kits will be available.
Concrete Curing
When curing compounds are used, overspray will be avoided, and no compound will be allowed to run off from the application area.
3.3.2 Materials Management and Waste Management
Materials management control practices consist of implementing procedural and structural BMPs for handling, storing and using construction materials to prevent the release of those materials into stormwater discharges. The amount and type of construction materials to be utilized at the Site will depend upon the type of construction and the length of the construction period. The materials may be used continuously, such as fuel for vehicles and equipment, or the materials may be used for a discrete period, such as soil binders for temporary stabilization.
Waste management consist of implementing procedural and structural BMPs for handling, storing and ensuring proper disposal of wastes to prevent the release of those wastes into stormwater discharges.
Materials and waste management pollution control BMPs shall be implemented to minimize stormwater contact with construction materials, wastes and service areas; and to prevent materials and wastes from being discharged off-site. The primary mechanisms for stormwater contact that shall be addressed include:
Direct contact with precipitation
Contact with stormwater run-on and runoff
Wind dispersion of loose materials
Direct discharge to the storm drain system through spills or dumping Extended contact with some materials and wastes, such as asphalt cold mix and treated wood products, which can leach pollutants into stormwater.
A list of construction activities is provided in Section 2.6. The following Materials and Waste Management BMP selection table indicates the BMPs that shall be implemented to handle materials and control construction site wastes associated with these construction activities. Fact Sheets for Materials and Waste Management BMPs are provided in Appendix H. 786
Bijou Park Connector Trail 22 March 2025
Table 3.5 Temporary Materials Management BMPs CASQA Fact Sheet BMP Name Meets a
Minimum
Requirement(1)
BMP used
If not used, state reason
YES NO
WM-01 Material Delivery and Storage X WM-02 Material Use X WM-03 Stockpile Management X WM-04 Spill Prevention and Control X WM-05 Solid Waste Management X WM-06 Hazardous Waste Management X Not applicable WM-07 Contaminated Soil Management X Not applicable WM-08 Concrete Waste Management X WM-09 Sanitary-Septic Waste Management X WM-10 Liquid Waste Management X Not applicable Alternate BMPs Used: If used, state reason: (1) Applicability to a specific project shall be determined by the QSD. 787
Bijou Park Connector Trail 23 March 2025
Material management BMPs shall be implemented in conformance with the following guidelines and in accordance with the BMP Fact Sheets provided in Appendix H. If there is a conflict between documents, the Site Map will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Site Map prevail over standard details included in the Site Map. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets.
Material Delivery and Storage
Staging areas approved by TRPA in the project permit are shown on Map 2 of Appendix B, in the Water Pollution Control Plans, and in the project improvement plans. Materials that expected to be staged include BMP materials, pipe and appurtenances, traffic control devices, aggregate base, soil, and mulch. Equipment that will be staged includes excavators, backhoes, water trucks, trucks, paving equipment, and sweepers. Perimeter controls will be installed around staging areas, and the area will be delineated to protect existing vegetation.
Material Use
An ample supply of clean-up material will be kept near use areas. Secondary containment will be used for gas cans, oil, hydraulic fluids, concrete curing compounds, batteries, etc. when material are not being used. Spills will be contained and cleaned immediately. Sampling, monitoring, and reporting will be conducted where significant spills have occurred.
Stockpile Management
Stockpiles will be located a minimum of 50 feet from concentrated flows of storm water, drainage courses, and culvert inlets. Stockpiles will be contained and covered when not actively used. Stockpiles will be inspected daily by the contractor, weekly by the WPCM; and before, during, and after any storm events. Stockpiles will be sprayed with water for dust control, and all stockpiles will be removed or winterized prior to October 15th. In the event that cold mix is stored on site it will be stored on an impervious surface and covered with plastic sheeting.
Spill Prevention and Control
Spill prevention and control will be implemented to contain and clean up spills and prevent material discharges. All hazardous waste spills of 10 gallons or more will be reported to the El Dorado County Department of Environmental Health at (530) 621-5300.
Solid Waste Management
Solid wastes will be loaded directly into trucks and/or water tight containers that are covered at the end of the day. Construction litter and debris from the project will be removed weekly and disposed of at a properly licensed facility.
Concrete Waste Management
All concrete waste will be collected and properly disposed of. The waste will be collected by sweeping, shoveling, and /or other mechanical means. Portable temporary concrete washouts will be located a minimum of 50 feet from concentrated flows of storm water, drainage courses and downstream inlets. Washouts will be covered and protected from rain 24 hours prior to forecasted rain events (30% chance or greater). Concrete washouts will be inspected daily by the contractor, weekly by the WPCM, and before, during, and after any rain events.
Sanitary-Septic Waste Management
788
Bijou Park Connector Trail 24 March 2025
A licensed service will deliver and maintain portable restrooms to the project area. The restrooms will be located a minimum of 50' away from concentrated flows of storm water, drainage courses and downstream inlets. Portable restrooms will be inspected daily by the contractor, weekly by the WPCM, and before, during, and after any storm events.
3.4 POST CONSTRUCTION STORMWATER MANAGEMENT MEASURES
Post construction BMPs are permanent measures installed during construction, designed to reduce or eliminate pollutant discharges from the site after construction is completed.
This site is located in an area subject to a Phase I or Phase II Municipal Separate Storm Sewer System (MS4) permit approved Stormwater Management Plan. Yes No Permanent BMPs addressing the creation of impervious surface are incorporated into the project and are shown in the Improvement plans. Maintenance of the existing and proposed BMPs on the site is conducted by the City of South Lake Tahoe.
789
Bijou Park Connector Trail 25 March 2025
Section 4 BMP Inspection, and Maintenance, and
Rain Event Action Plans
4.1 BMP INSPECTION AND MAINTENANCE
The General Permit requires routine daily inspections of BMPs during active construction, along with inspections before, during, and after qualifying rain events. A BMP inspection checklist must be filled out for inspections and maintained on-site with the SWPPP. The inspection checklist includes the necessary information covered in Section 7.6. A blank inspection checklist can be found in Appendix I. Completed checklists shall be kept in CSMP Attachment 2 “Monitoring Records.
BMPs shall be maintained regularly to ensure proper and effective functionality. If necessary, corrective actions shall be implemented within 72 hours of identified deficiencies and associated amendments to the SWPPP shall be prepared by the QSD.
Specific details for maintenance, inspection, and repair of Construction Site BMPs can be found in the BMP Factsheets in Appendix H.
4.2 RAIN EVENT ACTION PLANS
From the dates of May 1 through October 15 of each year, and during periods in which construction activity is conducted under a variance to the BMP requirements of this General Permit (section VIII.A.16.), QSP shall develop a REAP no later than the calendar day (24 hours) prior to any anticipated precipitation event. An anticipated precipitation event is any weather pattern that is forecast to have a 30 percent or greater chance of producing 0.1 inch of precipitation as rainfall in the project area. During periods when thunderstorm activity is anticipated, the Discharger shall monitor weather conditions during the course of the day, and prepare and implement a REAP if the chance of thunderstorms becomes 30 percent or greater, or when visual observations indicate imminent precipitation. The QSP shall obtain, for each day of construction operations, a printed copy of precipitation forecast information from the National Weather Service (NWS) Forecast Office and keep the copy with the SWPPP monitoring records.
Dischargers may access the daily forecasts by entering the city or zip code of the project’s location at the following website: http://www.srh.noaa.gov/forecast. The intensity of predicted precipitation may be found at the link for the “Forecast Weather Table Interface.” The REAP shall be available onsite, and a QSP shall implement the REAP prior to the onset of an actual precipitation event. The REAP must be checked and updated daily for storms expected to last over a period of several days.
The REAP shall be developed for all phases of construction until the permit coverage is terminated by Lahontan Water Board staff. A REAP, at a minimum, shall include:
1. QSP name and contact number;
2. The date(s) rain is predicted to occur, and predicted chance of rain;
3. A description of all DSAs, material storage areas, stockpiles, vehicle and equipment storage and maintenance areas, and waste management areas to be protected.
4. For each area described above, list specific items to review and actions to perform prior to the rain event;
790
Bijou Park Connector Trail 26 March 2025
5. A description of the labor required or to be provided to complete the protective actions required.
6. A certification by the QSP that the REAP will be carried out as required by this General Permit; and,
7. A printout of the NWS weather forecast.
The SWPPP includes REAP templates but the QSP will need to customize them for each rain event. Site-specific REAP templates for each applicable project phase can be found in Appendix J. The QSP shall maintain a paper copy of completed REAPs in compliance with the record retention requirements Section 1.5 of this SWPPP. Completed REAPs shall be maintained in Appendix J.
791
Bijou Park Connector Trail 27 March 2025
Section 5 Training
Appendix L identifies the QSPs for the project. To promote stormwater management awareness specific for this project, weekly training of job-site personnel shall be included as part of routine project meetings (e.g. daily/weekly tailgate safety meetings), or task specific trainings as needed.
The QSP shall be responsible for providing this information at the meetings, and subsequently completing the training logs shown in Appendix K, which identifies the site-specific stormwater topics covered as well as the names of site personnel who attended the meeting. Tasks may be delegated to trained employees by the QSP provided adequate supervision and oversight is provided. Training shall correspond to the specific task delegated including: SWPPP implementation; BMP inspection and maintenance; and record keeping.
Documentation of training activities (formal and informal) is retained in SWPPP Appendix K.
792
Bijou Park Connector Trail 28 March 2025
Section 6 Responsible Parties and Operators
6.1 RESPONSIBLE PARTIES
Approved Signatories who are responsible for SWPPP implementation and have authority to sign permit-related documents are listed below. Written authorizations from the LRP for these individuals are provided in Appendix L. The Approved Signatories assigned to this project are:
Name Title Phone Number
None at this time
QSP MANAGEMENT PLAN
QSPs identified for the project are identified in Appendix L. The QSP shall have primary responsibility and significant authority for the implementation, maintenance and inspection/monitoring of SWPPP requirements. The QSP will be available at all times throughout the duration of the project. Duties of the QSP include but are not limited to:
Implementing all elements of the General Permit and SWPPP, including but not limited to:
o Ensuring all BMPs are implemented, inspected, and properly maintained; o Performing daily non-stormwater and stormwater visual observations and inspections; o Performing non-stormwater and storm sampling and analysis, as required; o Performing routine inspections and observations at minimum on a daily basis; o Implementing non-stormwater management, and materials and waste management activities such as: monitoring discharges; general Site clean-up; vehicle and equipment cleaning, fueling and maintenance; spill control; ensuring that no materials other than stormwater are discharged in quantities which will have an adverse effect on receiving waters or storm drain systems; etc.;
o Prepare and implement REAPs;
o Prepare and submit water quality exceedance reports;
o Conduct weekly water pollution control training and ensure that all employees have current training;
o Correct any construction activities damaging water pollution control practices or causing water pollution.
The QSP may delegate these inspections and activities to an appropriately trained employee, but shall ensure adequacy and adequate deployment. Ensuring elimination of unauthorized discharges.
793
Bijou Park Connector Trail 29 March 2025
The QSPs shall be assigned authority by the LRP to mobilize crews in order to make immediate repairs to the control measures.
Coordinate with the Contractor(s) to assure all of the necessary corrections/repairs are made immediately and that the project complies with the SWPPP, the General Permit and approved plans at all times.
Notifying the general contractor’s foreman by in-person or phone communication (including voice mail or text), and LRP or Authorized Signatory via e-mail immediately of off-site discharges or other non-compliance events.
6.2 CONTRACTOR LIST
Contractor
Name:
Title:
Company:
Address:
Phone Number:
Number (24/7):
Contractor information is not available at this time. Contractor information will be included by amendment after the contract is awarded, but prior to the start of construction. 794
Bijou Park Connector Trail 30 March 2025
Section 7 Construction Site Monitoring Program
7.1 Purpose
This Construction Site Monitoring Program was developed to address the following objectives:
1. Demonstrate that the site is in compliance with the discharge prohibitions and applicable effluent limitations.
2. Determine whether non-visible pollutants are present at the construction site and are causing or contributing to exceedances of water quality objectives.
3. Determine whether immediate corrective actions, additional BMPs, or SWPPP revisions are necessary to reduce pollutants in storm water discharges and authorized non-storm water discharges.
4. Determine whether BMPs included in the SWPPP/REAP are effective in preventing or reducing pollutants in storm water discharges and authorized non-storm water discharges.
5. Demonstrate that appropriate sample collection, handling, and analyses procedures are implemented.
7.2 Applicability of Permit Requirements
The General Permit identifies the following types of monitoring is applicable to this project:
Visual inspections of Best Management Practices (BMPs); Visual monitoring of the site related to qualifying storm events; Visual monitoring of the site for non-stormwater discharges; Sampling and analysis of construction site runoff for pH and turbidity; Sampling and analysis of construction site runoff for other parameters if applicable; Sampling and analysis of non-stormwater discharges;
Sampling and analysis of construction site runoff for non-visible pollutants when applicable; and,
Sampling and analysis of non-stormwater discharges when applicable. 795
Bijou Park Connector Trail 31 March 2025
7.3. Weather and Rain Event Tracking
Visual monitoring and inspections requirements of the General Permit are triggered by a qualifying rain event. The General Permit defines a qualifying rain event as any event that produces ½ inch of precipitation. A minimum of 48 hours of dry weather will be used to distinguish between separate qualifying storm events.
Visual monitoring and inspections shall be conducted when there is a 30% chance or greater probability of 0.1 inch or more of precipitation is predicted in the project area. Sampling shall be conducted when there is a discharge off the project boundaries. A minimum of 48 hours of dry weather will be used to distinguish between separate storm events.
7.3.1 Weather Tracking
The QSP should daily consult the National Oceanographic and Atmospheric Administration (NOAA) for the weather forecasts. These forecasts can be obtained at http://www.srh.noaa.gov/.
Weather reports should be printed and maintained with the SWPPP in CSMP Attachment 1 “Weather Reports”.
7.3.2 Rain Gauges
The QSP shall install a rain gauge(s) on the project site. Locate the gauge in an open area away from obstructions such as trees or overhangs. Mount the gauge on a post at a height of 3 to 5 feet with the gauge extending several inches beyond the post. Make sure that the top of the gauge is level. Make sure the post is not in an area where rainwater can indirectly splash from sheds, equipment, trailers, etc.
The rain gauge(s) shall be read daily during normal site scheduled hours. The rain gauge should be read at approximately the same time every day and the date and time of each reading recorded. Log rain gauge readings in CSMP Attachment 1 “Weather Records”. Follow the rain gauge instructions to obtain accurate measurements.
Once the rain gauge reading has been recorded, accumulated rain shall be emptied and the gauge reset.
For comparison with the site rain gauge, the nearest appropriate governmental rain gauge(s) is located at Lake Tahoe Airport.
7.4 Monitoring Locations
Monitoring locations are shown on the Water Pollution Control Plans in Appendix B. Monitoring locations are described in the Sections 7.6 and 7.7.
Whenever changes in the construction site might affect the appropriateness of sampling locations, the sampling locations shall be revised accordingly. All such revisions shall be implemented as soon as feasible and the SWPPP amended. Temporary changes that result in a one-time additional sampling location do not require a SWPPP amendment.
7.5 Safety and Monitoring Exemptions
Safety practices for sample collection will be in accordance with the contractor’s health and safety plan.
796
Bijou Park Connector Trail 32 March 2025
Dischargers are not required to conduct visual inspections or physically collect samples outside of daylight hours, or when conditions exist that would be dangerous to personnel. Dischargers must conduct visual monitoring during daylight hours of any day of the week; however, Dischargers are only required to collect samples for analysis during active business/working days.
If monitoring (visual monitoring or sample collection) of the site is unsafe because of the dangerous conditions noted above then the QSP shall document the conditions for why an exception to performing the monitoring was necessary. The exemption documentation shall be filed in CSMP Attachment 2 “Monitoring Records”.
7.6 Visual Monitoring
Visual monitoring includes observations and inspections. Inspections of BMPs are required to identify and record BMPs that need maintenance to operate effectively, that have failed, or that could fail to operate as intended. Visual observations of the site are required to observe storm water drainage areas to identify any spills, leaks, or uncontrolled pollutant sources.
Table 7.1 identifies the required frequency of visual observations and inspections. Inspections and observations will be conducted at the locations identified in Section 7.6.3.
Table 7.1 Summary of Visual Monitoring and Inspections
Type of Inspection Frequency
Routine Inspections
BMP Inspections Daily from May 1 to October 15, Monthly from October 16 to April 30
Non-Stormwater Discharge Observations Daily from May 1 to October 15, Monthly from October 16 to April 30
Rain Event Triggered Inspections
Site Inspections Prior to a Qualifying Event Within 24 hours of a qualifying event BMP Inspections During an Extended Storm Event Every 24-hour period of a rain event Site Inspections Following a Qualifying Event Within 24 hours of a qualifying event
7.6.1 Routine Observations and Inspections
Routine site inspections and visual monitoring are necessary to ensure that the project is in compliance with the requirements of the Construction General Permit.
7.6.1.1 Routine BMP Inspections
Inspections of BMPs are conducted to identify and record:
BMPs that are properly installed;
BMPs that need maintenance to operate effectively;
BMPs that have failed; or
BMPs that could fail to operate as intended.
797
Bijou Park Connector Trail 33 March 2025
7.6.1.2 Non-Stormwater Discharge Observations
Each drainage area will be inspected for the presence of or indications of prior unauthorized and authorized non-stormwater discharges. Inspections will record:
Presence or evidence of any non-stormwater discharge (authorized or unauthorized); Pollutant characteristics (floating and suspended material, sheen, discoloration, turbidity, odor, etc.); and
Source of discharge.
7.6.2 Rain-Event Triggered Observations and Inspections Visual observations of the site and inspections of BMPs are required prior to a qualifying rain event; following a qualifying rain event, and every 24-hour period during a qualifying rain event.
Pre-rain inspections will be conducted after consulting NOAA and determining that a precipitation event with a 30% chance or greater probability of 0.1 inch or more of precipitation has been predicted.
7.6.2.1 Visual Observations Prior to a Forecasted Qualifying Rain Event Within 24-hours prior to a qualifying event a stormwater visual monitoring site inspection will include observations of the following locations:
Stormwater drainage areas to identify any spills, leaks, or uncontrolled pollutant sources; BMPs to identify if they have been properly implemented; Any stormwater storage and containment areas to detect leaks and ensure maintenance of adequate freeboard.
Pre-rain BMP inspections and visual monitoring will be triggered by a NOAA forecast that indicates a probability of precipitation of 30% or more in the project area.
7.6.2.2 BMP Inspections During an Extended Storm Event
During an extended rain event BMP inspections will be conducted to identify and record:
BMPs that are properly installed;
BMPs that need maintenance to operate effectively;
BMPs that have failed; or
BMPs that could fail to operate as intended.
If the construction site is not accessible during the rain event, the visual inspections shall be performed at all relevant outfalls, discharge points, downstream locations. The inspections should record any projected maintenance activities.
7.6.2.3 Visual Observations Following a Qualifying Rain Event Within 48 hours following a qualifying rain event (0.5 inches of rain) a stormwater visual monitoring site inspection is required to observe:
Stormwater drainage areas to identify any spills, leaks, or uncontrolled pollutant sources; BMPs to identify if they have been properly designed, implemented, and effective; Need for additional BMPs;
798
Bijou Park Connector Trail 34 March 2025
Any stormwater storage and containment areas to detect leaks and ensure maintenance of adequate freeboard; and
Discharge of stored or contained rain water.
7.6.3 Visual Monitoring Procedures
Visual monitoring shall be conducted by the QSP or staff trained by and under the supervision of the QSP.
The name(s) and contact number(s) of the site visual monitoring personnel are listed below and their training qualifications are provided in Appendix K.
Assigned inspector: Jennifer Roman, QSD/QSP Contact phone: (775) 291-6337 Alternate inspector: To Be Determined Contact phone: To Be Determined Stormwater observations shall be documented on the Visual Inspection Field Log Sheet (see CSMP Attachment 3 “Example Forms”). BMP inspections shall be documented on the site specific BMP inspection checklist. Any photographs used to document observations will be referenced on stormwater site inspection report and maintained with the Monitoring Records in Attachment 2.
The QSP shall within three days of the inspection submit copies of the completed inspection report to the LRP.
The completed reports will be kept in CSMP Attachment 2 “Monitoring Records”. 799
Bijou Park Connector Trail 35 March 2025
7.6.4 Visual Monitoring Follow-Up and Reporting
Correction of deficiencies identified by the observations or inspections, including required repairs or maintenance of BMPs, shall be initiated and completed as soon as possible.
If identified deficiencies require design changes, including additional BMPs, the implementation of changes will be initiated within 72 hours of identification and be completed as soon as possible. When design changes to BMPs are required, the SWPPP shall be amended to reflect the changes.
Deficiencies identified in site inspection reports and correction of deficiencies will be tracked on the Inspection Field Log Sheet or BMP Inspection Report and shall be submitted to the QSP and shall be kept in CSMP Attachment 2 “Monitoring Records”.
The QSP shall within three days of the inspection submit copies of the completed Inspection Field Log Sheet or BMP Inspection Report with the corrective actions to the LRP.
Results of visual monitoring must be summarized and reported in the Annual Report.
7.6.5 Visual Monitoring Locations
The inspections and observations identified in Sections 7.6.1 and 7.6.2 will be conducted at the locations identified in this section.
BMP locations are shown on the Water Pollution Control Plans in Appendix B.
There are two drainage areas on the project site and the contractor’s yard, staging areas, and storage areas. The project drainage areas are shown on Site Map 2 in Appendix B and Table 7.2 identifies each drainage area by location.
Table 7.2 Site Drainage Areas
Location
No.
Location
1 Tributary to Bijou Creek
2 Tributary to Trout Creek
There are no stormwater storage or containment areas on the project site. Stormwater storage or containment area(s) are shown on the Site Maps in Appendix B and Table 7.3 identifies each stormwater storage or containment area by location.
Table 7.3 Stormwater Storage and Containment Areas
Location
No.
Location
None
There is one discharge location from the project site. Site stormwater discharge location is shown in the Map 2 in Appendix B and Table 7.4 identifies each stormwater discharge location. 800
Bijou Park Connector Trail 36 March 2025
Table 7.4 Site Stormwater Discharge Locations
Location
No.
Location
DS1 Proposed Culvert under Trail
DS2 Curb and Gutter at Al Tahoe/Johnson Intersection
7.7 Water Quality Sampling and Analysis
7.7.1 Sampling and Analysis Plan for Non-Visible Pollutants in Stormwater Runoff Discharges
This Sampling and Analysis Plan for Non-Visible Pollutants describes the sampling and analysis strategy and schedule for monitoring non-visible pollutants in stormwater runoff discharges from the project site.
Sampling for non-visible pollutants will be conducted when (1) a breach, leakage, malfunction, or spill is observed; and (2) the leak or spill has not been cleaned up prior to the rain event; and (3) there is the potential for discharge of non-visible pollutants to surface waters or drainage system.
The following construction materials, wastes, or activities, as identified in Section 2.6, are potential sources of non-visible pollutants to stormwater discharges from the project. Storage, use, and operational locations are shown on the Map 2 and in the Water Pollution Control Plans in Appendix B.
Sawcutting
Demolition
Vehicle & Equipment Fueling & Maintenance
Disinfection
The following existing site features, as identified in Section 2.6, are potential sources of nonvisible pollutants to stormwater discharges from the project. Locations of existing site features contaminated with non-visible pollutants are shown on the Site Maps in Appendix B. None
The following soil amendments have the potential to change the chemical properties, engineering properties, or erosion resistance of the soil and will be used on the project site. Locations of soil amendment application are shown on the Site Maps in Appendix B. None
801
Bijou Park Connector Trail 37 March 2025
The project has the potential to receive stormwater run-on from the following locations with the potential to contribute non-visible pollutants to stormwater discharges from the project.
Locations of such run-on to the project site are shown on the Site Maps in Appendix B. None
7.7.1.1 Sampling Schedule
Samples for the potential non-visible pollutant(s) and a sufficiently large unaffected background sample shall be collected during the first two hours of discharge from rain events that result in a sufficient discharge for sample collection. Samples shall be collected during the site’s scheduled hours and shall be collected regardless of the time of year and phase of the construction.
Collection of discharge samples for non-visible pollutant monitoring will be triggered when any of the following conditions are observed during site inspections conducted prior to or during a rain event.
Materials or wastes containing potential non-visible pollutants are not stored under watertight conditions. Watertight conditions are defined as (1) storage in a watertight container, (2) storage under a watertight roof or within a building, or (3) protected by temporary cover and containment that prevents stormwater contact and runoff from the storage area.
Materials or wastes containing potential non-visible pollutants are stored under watertight conditions, but (1) a breach, malfunction, leakage, or spill is observed, (2) the leak or spill is not cleaned up prior to the rain event, and (3) there is the potential for discharge of non-visible pollutants to surface waters or a storm drain system. A construction activity, including but not limited to those in Section 2.6, with the potential to contribute non-visible pollutants (1) was occurring during or within 24 hours prior to the rain event, (2) BMPs were observed to be breached, malfunctioning, or improperly implemented, and (3) there is the potential for discharge of non-visible pollutants to surface waters or a storm drain system.
Soil amendments that have the potential to change the chemical properties, engineering properties, or erosion resistance of the soil have been applied, and there is the potential for discharge of non-visible pollutants to surface waters or a storm drain system. Stormwater runoff from an area contaminated by historical usage of the site has been observed to combine with stormwater runoff from the site, and there is the potential for discharge of non-visible pollutants to surface waters or a storm drain system.
7.7.1.2 Sampling Locations
Sampling locations are based on proximity to planned non-visible pollutant storage, occurrence or use; accessibility for sampling, and personnel safety. Planned non-visible pollutant sampling locations are shown on the Water Pollution Control Plans in Appendix B and include the locations identified in Tables 7.5 through 7.9.
802
Bijou Park Connector Trail 38 March 2025
Six sampling location(s) on the project site have been identified for the collection of samples of runoff from planned material and waste storage areas and areas where non-visible pollutant producing construction activities are planned.
803
Bijou Park Connector Trail 39 March 2025
Table 7.5 Non-Visible Pollutant Sample Locations – Staging Areas Sample Location
Number Sample Location Description
Sample Location Latitude and
Longitude
DS Yard Downstream of Contractor’s Yard 38°55'54.82"°N, 119°58'7.85"W No sampling locations have been identified for the collection of samples of runoff from drainage areas where soil amendments will be applied that have the potential to affect water quality.
Table 7.6 Non-Visible Pollutant Sample Locations – Soil Amendment Areas Sample Location
Number Sample Location
Sample Location Latitude and
Longitude
(Decimal Degrees)
None
No sampling locations have been identified for the collection of samples of runoff from drainage areas contaminated by historical usage of the site.
Table 7.7 Non-Visible Pollutant Sample Locations – Areas of Historical Contamination Sample Location
Number Sample Location
Sample Location Latitude and
Longitude
(Decimal Degrees)
None
Six sampling locations have been identified for the collection of an uncontaminated sample of runoff as a background sample for comparison with the samples being analyzed for non-visible pollutants. These locations were selected such that the sample will not have come in contact with the operations, activities, or areas identified in Section 7.7.1 or with disturbed soils areas.
Table 7.8 Non-Visible Pollutant Sample Locations – Background (Unaffected Sample) Sample Location
Number Sample Location
Sample Location Latitude and
Longitude
(Decimal Degrees)
US Yard Upstream of Contractor’s Yard 38°55'53.84"N, 119°58'7.79W° One sampling location has been identified for the collection of samples of run-on to the project site. Run-on from this location has the potential to combine with discharges from the site being sampled for non-visible pollutants. These samples are intended to identify potential sources of non-visible pollutants that originate off the project site. 804
Bijou Park Connector Trail 40 March 2025
Table 7.9 Non-Visible Pollutant Sample Locations – Site Run-On Sample Location
Number Sample Location
Sample Location Latitude and
Longitude
(Decimal Degrees)
US1 DI on Al Tahoe 38°55'37.75"N, 119°58'0.87"W
US2 Curb & Gutter east of main park
driveway
38°55'42.93"N, 119°58'5.58"W
If a stormwater visual monitoring site inspection conducted prior to or during a storm event identifies the presence of a material storage, waste storage, or operations area with spills or the potential for the discharge of non-visible pollutants to surface waters or a storm drain system that is at a location not listed above and has not been identified on the Site Maps, sampling locations will be selected by the QSP using the same rationale as that used to identify planned locations.
Non-visible pollutant sampling locations shall be identified by the QSP on the Rain Event Action Plan prior to a forecasted qualifying rain event.
7.7.1.3 Monitoring Preparation
Non-visible pollutant samples will be collected by:
Contractor Yes No
Consultant Yes No
Laboratory Yes No
Samples on the project site will be collected by the QSP:
Name/Telephone Number: Jennifer Roman, (775) 291-6337
Alternate(s)/Telephone Number: To Be Determined
An adequate stock of monitoring supplies and equipment for monitoring non-visible pollutants will be available on the project site prior to a sampling event. Monitoring supplies and equipment will be stored in a cool temperature environment that will not come into contact with rain or direct sunlight. Sampling personnel will be available to collect samples in accordance with the sampling schedule. Supplies maintained at the project site will include, but are not limited to, clean powder-free nitrile gloves, sample collection equipment, coolers, appropriate number and volume of sample bottles, identification labels, re-sealable storage bags, paper towels, personal rain gear, ice, and Effluent Sampling Field Log Sheets and Chain of Custody (CoC) forms, which are provided in CSMP Attachment 3 “Example Forms”.
7.7.1.4 Analytical Constituents
Table 7.10 lists the specific sources and types of potential non-visible pollutants on the project site and the water quality indicator constituent(s) for that pollutant.
Table 7.10 Potential Non-Visible Pollutants and Water Quality Indicator Constituents 805
Bijou Park Connector Trail 41 March 2025
Pollutant Source Pollutant Water Quality Indicator
Constituent
Vehicle Batteries Sulfuric acid, pH, lead pH
Disinfection Chlorine pH
7.7.1.5 Sample Collection
Samples of discharge shall be collected at the designated non-visible pollutant sampling locations shown on the Water Pollution Control plans in Appendix B or in the locations determined by observed breaches, malfunctions, leakages, spills, operational areas, soil amendment application areas, and historical site usage areas that triggered the sampling event.
Grab samples shall be collected and preserved in accordance with the methods identified in the Table, “Sample Collection, Preservation and Analysis for Monitoring Non-Visible Pollutants” provided in Section 7.7.1.6. Only the QSP, or personnel trained in water quality sampling under the direction of the QSP shall collect samples.
Sample collection and handling requirements are described in Section 7.7.7.
7.7.1.6 Sample Analysis
Samples shall be analyzed using the analytical methods identified in the Table 7.11.
Samples will be analyzed by:
Laboratory Name: Alpha Analytical, Inc.
Street Address: 255 Glendale Avenue, Suite 21
City, State Zip: Sparks, NV 89431
Telephone Number: (775) 355-1044
Point of Contact: Reyna Vallejo
Samples will be delivered to the laboratory by:
Driven by Contractor Yes No
Picked up by Laboratory Courier Yes No
Shipped Yes No
806
Bijou Park Connector Trail 42 March 2025
Table 7.11 Sample Collection, Preservation and Analysis for Monitoring Non-Visible Pollutants Constituent Analytical Method
Minimum
Sample
Volume
Sample Containers Sample Preservation Reporting Limit Maximum Holding Time pH 150.1 50 ml Polypropylene Store at 4°C (39.2°F) 0.2 48 hours Notes:
807
Bijou Park Connector Trail 43 March 2025
7.7.1.7 Data Evaluation and Reporting
The QSP shall complete an evaluation of the water quality sample analytical results.
Runoff/downgradient results shall be compared with the associated upgradient/unaffected results and any associated run-on results. Should the runoff/downgradient sample show an increased level of the tested analyte relative to the unaffected background sample, which cannot be explained by run-on results, the BMPs, site conditions, and surrounding influences shall be assessed to determine the probable cause for the increase.
As determined by the site and data evaluation, appropriate BMPs shall be repaired or modified to mitigate discharges of non-visible pollutant concentrations. Any revisions to the BMPs shall be recorded as an amendment to the SWPPP.
The General Permit prohibits the storm water discharges that contain hazardous substances equal to or in excess of reportable quantities established in 40 C.F.R. §§ 117.3 and 302.4. The results of any non-stormwater discharge results that indicate the presence of a hazardous substance in excess of established reportable quantities shall be immediately reported to the Regional Water Board and other agencies as required by 40 C.F.R. §§ 117.3 and 302.4.
Results of non-visible pollutant monitoring shall be reported in the Annual Report.
7.7.2 Sampling and Analysis Plan for pH and Turbidity in Stormwater Runoff Discharges
Sampling and analysis of runoff for pH and turbidity is required for this project. This Sampling and Analysis Plan describes the strategy for monitoring turbidity and pH levels of stormwater runoff discharges from the project site and run-on that may contribute to an exceedance of a Numeric Action Level (NAL) [or the exceedance of a Receiving Water Monitoring Trigger].
Samples for turbidity will be collected from all drainage areas with disturbed soil areas and samples for pH will be collected from all drainage areas with a high risk of pH altering discharge.
7.7.2.1 Sampling Schedule
Stormwater runoff samples shall be collected for turbidity from each day of a qualifying rain event that results in a discharge from the project site. At minimum, turbidity samples will be collected from each site discharge location draining a disturbed area. A minimum of three samples will be collected per day of discharge during a qualifying event. Samples should be representative of the total discharge from the project each day of discharge during the qualifying event. Typically representative samples will be spaced in time throughout the daily discharge event. If there is a visible oily sheen at any discharge point, a sample shall be collected for grease and oil in accordance with Table C-1 of the Tahoe CGP.
Stormwater runoff samples shall be collected for pH from each day of qualifying rain events that result in a discharge from the project site. Note that pH samples are only required to be collected during project phases and from drainage areas with a high risk of pH altering discharge. A minimum of three samples will be collected per day of discharge during a qualifying event.
Samples should be representative of the total discharge from the location each day of discharge during the qualifying event. Typically representative samples will be spaced in time throughout the daily discharge event.
808
Bijou Park Connector Trail 44 March 2025
Stored or collected water from a qualifying storm event when discharged shall be tested for turbidity and pH (when applicable). Stored or collected water from a qualifying event may be sampled at the point it is released from the storage or containment area or at the site discharge location.
Run-on samples shall be collected whenever the QSP identifies that run-on has the potential to contribute to an exceedance of a NAL [or the exceedance of a Receiving Water Monitoring Trigger].
7.7.2.2 Sampling Locations
Sampling locations are based on the site runoff discharge locations and locations where run-on enters the site; accessibility for sampling; and personnel safety. Planned pH and turbidity sampling locations are shown on the Site Maps in Appendix B and include the locations identified in Table 7.13 and Table 7-14.
Two sampling locations on the project site have been identified for the collection of runoff samples. Table 7.12 also provides an estimate of the site’s area that drains to each location.
Table 7.12 Turbidity and pH Runoff Sample Locations
Sample Location
Number Sample Location
Estimate of Site
(%)
DS1 Proposed Culvert under Trail 50
DS2 Curb and Gutter at Al Tahoe/Johnson
Intersection
50 Two sampling locations have been identified for the collection of run-on samples where the run-on has the potential to contribute to an exceedance of an NAL or a Receiving Water Monitoring Trigger. Table 7.13 identifies the run-on sample locations.
Table 7.13 Turbidity and pH Run-On Sample Locations
Sample Location
Number Sample Location
Sample Location Latitude and
Longitude
(Decimal Degrees)
US1 DI on Al Tahoe 38°55'37.75"N, 119°58'0.87"W
US2 Curb & Gutter east of main park
driveway
38°55'42.93"N, 119°58'5.58"W
The project does not receive run-on with the potential to exceed NALs or Receiving Water Monitoring Triggers.
7.7.2.3 Monitoring Preparation
Turbidity and pH samples will be collected and analyzed by:
Contractor Yes No
Consultant Yes No
809
Bijou Park Connector Trail 45 March 2025
Laboratory Yes No
Samples on the project site will be collected by the QSP:
Name/Telephone Number: Jennifer Roman, (775) 291-6337
Alternate(s)/Telephone Number: To Be Determined
An adequate stock of monitoring supplies and equipment for monitoring turbidity and will be available on the project site prior to a sampling event. Monitoring supplies and equipment will be stored in a cool temperature environment that will not come into contact with rain or direct sunlight. Sampling personnel will be available to collect samples in accordance with the sampling schedule. Supplies maintained at the project site will include, but are not limited to, field meters, extra batteries; clean powder-free nitrile gloves, sample collection equipment, appropriate sample containers, paper towels, personal rain gear, and Effluent Sampling Field Log Sheets and CoC forms provided in CSMP Attachment 3 “Example Forms”.
The contractor will obtain and maintain the field testing instruments, as identified in Section
7.7.2.6, for analyzing samples in the field by contractor sampling personnel.
The QSP or his/her designee will contact the contractor 24 hours prior to a predicted rain event or for an unpredicted event, as soon as a rain event begins to ensure that adequate sample collection personnel, supplies for monitoring pH and turbidity are available and will be mobilized to collect samples on the project site in accordance with the sampling schedule.
7.7.2.4 Field Parameters
Samples shall be analyzed for the constituents indicated in the Table 7.14.
Table 7.14 Sample Collection and Analysis for Monitoring Turbidity and pH Parameter Test Method
Minimum
Sample
Volume(1)
Sample Collection
Container Type
Detection
Limit
(minimum)
Turbidity Field meter/probe with
calibrated portable instrument 500 mL
Polypropylene or Glass
(Do not collect in meter
sample cells)
1 NTU
pH
Field meter/probe with
calibrated portable instrument
or calibrated pH test kit
100 mL Polypropylene 0.2 pH units
Notes: 1 Minimum sample volume recommended. Specific volume requirements will vary by instrument; check instrument manufacturer instructions.
L – Liter
mL – Milliliter
NTU – Nephelometric Turbidity Unit
810
Bijou Park Connector Trail 46 March 2025
7.7.2.5 Sample Collection
Samples of discharge shall be collected at the designated runoff and run-on sampling locations shown on Map 2 in Appendix B. Run-on samples shall be collected within close proximity of the point of run-on to the project.
Only personnel trained in water quality sampling and field measurements working under the direction of the QSP shall collect samples.
Sample collection and handling requirements are described in Section 7.7.7.
7.7.2.6 Field Measurements
Samples collected for field analysis, collection, analysis and equipment calibration shall be in accordance with the field instrument manufacturer’s specifications.
Immediately following collection, samples for field analysis shall be tested in accordance with the field instrument manufacturer’s instructions and results recorded on the Effluent Sampling Field Log Sheet.
The field instrument(s) listed in Table 7.15 will be used to analyze the following constituents:
Table 7.15 Field Instruments
Field Instrument
(Manufacturer and Model) Constituent
Extech 110 pH Meter pH
Oakton T-100 Turbidity Meter Turbidity
The manufacturers’ instructions are included in CSMP Attachment 4 “Field Meter Instructions”.
Field sampling staff shall review the instructions prior to each sampling event and follow the instructions in completing measurement of the samples.
The instrument(s) shall be maintained in accordance with manufacturer’s instructions. The instrument(s) shall be calibrated before each sampling and analysis event. Maintenance and calibration records shall be maintained with the SWPPP.
The QSP may authorize alternate equipment provided that the equipment meets the Construction General Permit’s requirements and the manufacturers’ instructions for calibration and use are added to CSMP Attachment 4 “Field Meter Instructions”.
7.7.2.7 Data Evaluation and Reporting
Immediately upon completing the measurements for the sampling event, provide the Effluent Sampling Field Log Sheets to the QSP for evaluation.
Numeric Action Levels
This project is subject to NALs for pH and turbidity (Table 7.16). Compliance with the NAL for pH and turbidity is based on a daily average. Upon receiving the field log sheets, the QSP shall immediately calculate the arithmetic average of the turbidity samples, and the logarithmic 811
Bijou Park Connector Trail 47 March 2025
average of the pH samples1 to determine if the NALs, shown in the table below, have been exceeded.
Table 7.16 Numeric Action Levels
Parameter Unit Daily Average
pH pH units Lower NAL = 6.0
Upper NAL = 9.0
Turbidity
NTU
20 NTU (NEL, Tahoe CGP)
250 NTU (NAL, State CGP)
The QSP shall within three days of the sample collection submit copies of the completed Effluent Sampling Field Log Sheets to the LRP.
In the event that the pH or turbidity NAL is exceeded, the QSP shall immediately notify the LRP and investigate the cause of the exceedance and identify corrective actions.
Exceedances of NALs shall be electronically reported to the State Water Board by LRP through the SMARTs system within 10 days of the conclusion of the storm event. If requested by the Regional Board, a NAL Exceedance report will be submitted. The NAL Exceedance Report must contain the following information:
Analytical method(s), method reporting unit(s), and MDL(s) of each parameter; Date, place, time of sampling, visual observation, and/or measurements, including precipitation; and
Description of the current BMPs associated with the sample that exceeded the NAL and the proposed corrective actions taken.
Receiving Water Monitoring Triggers
This project is not subject to Receiving Water Monitoring Triggers because it does not have a direct discharge to the receiving water.
7.7.3 Sampling and Analysis Plan for pH, Turbidity, and SSC in Receiving Water This project is not subject to Receiving Water Monitoring.
7.7.4 Sampling and Analysis Plan for Non-Stormwater Discharges This project is not subject to the non-stormwater sampling and analysis requirements of the General Permit because it is a Risk Level 1 project.
This Sampling and Analysis Plan for non-stormwater discharges describes the sampling and analysis strategy and schedule for monitoring pollutants in authorized and unauthorized 1 Daily average pH values must be calculated through the logarithmic method. In order to calculate an average, you must: (1) Convert the pH measurements from logarithms to real numbers; (2) Take the average of the real numbers; and (3) Convert the average of the real numbers back to a logarithm. 812
Bijou Park Connector Trail 48 March 2025
non-stormwater discharges from the project site in accordance with the requirements of the Construction General Permit.
Sampling of non-stormwater discharges will be conducted when an authorized or unauthorized non-stormwater discharge is observed discharging from the project site. In the event that non-stormwater discharges run-on to the project site from offsite locations, and this run-on has the potential to contribute to a violation of a NAL, the run-on will also be sampled.
The following authorized non-stormwater discharges identified in Section 2.7, have the potential to be discharged from the project site.
None
In addition to the above authorized stormwater discharges, some construction activities have the potential to result in an unplanned (unauthorized) non-stormwater discharge if BMPs fail. These activities include:
Concrete washout
Sawcutting
Oils, lubricants
Pressure testing
Disinfection
7.7.4.1 Sampling Schedule
Samples of authorized or unauthorized non-stormwater discharges shall be collected when they are observed.
7.7.4.2 Sampling Locations
Samples shall be collected from the discharge point of the construction site where the non-stormwater discharge is running off the project site. Site discharge locations are shown on the Site Maps in SWPPP Appendix B and include the locations identified below.
Two sampling locations on the project site has been identified where non-stormwater discharges may runoff from the project site. (Table 7.20)
Table 7.20 Non-stormwater Discharge Sample Locations
Sample Location
Number Sample Location
Sample Location Latitude and
Longitude
(Decimal Degrees)
DS1 Proposed Culvert under Trail 38°55'39.79"N, 119°57'59.28"W DS2 Curb and Gutter at Al Tahoe/Johnson
Intersection
38°55'55.36"N, 119°58'17.73"W
813
Bijou Park Connector Trail 49 March 2025
Two sampling location has been identified for the collection of non-stormwater discharges that run-on to the project site (Table 7.21).
Table 7.21 Non-stormwater Run-on Sample Locations
Sample Location
Number Sample Location
Sample Location Latitude and
Longitude
(Decimal Degrees)
US1 DI on Al Tahoe 38°55'37.75"N, 119°58'0.87" W
US2 Curb & Gutter east of main park
driveway
38°55'42.93"N, 119°58'5.58"W
7.7.4.3 Monitoring Preparation
Non-stormwater discharge samples will be collected by:
Contractor Yes No
Consultant Yes No
Laboratory Yes No
Samples on the project site will be collected by the QSP:
Name/Telephone Number: Jennifer Roman, (775) 291-6337
Alternate(s)/Telephone Number: To be determined
An adequate stock of monitoring supplies and equipment for monitoring non-stormwater discharges will be available on the project site. Monitoring supplies and equipment will be stored in a cool temperature environment that will not come into contact with rain or direct sunlight. Personnel trained in sampling will be available to collect samples in accordance with the sampling schedule. Supplies maintained at the project site will include, but are not limited to, clean powder-free nitrile gloves, sample collection equipment, field meters, coolers, appropriate number and volume of sample bottles, identification labels, re-sealable storage bags, paper towels, personal rain gear, ice, and Effluent Sampling Field Log Sheets and CoC forms provided in CSMP Attachment 3 “Example Forms”.
The contractor will obtain and maintain the field testing instruments, as identified in Section
7.7.2, for analyzing samples in the field by contractor sampling personnel.
The QSP or his/her designee will contact the contractor, 24 hours prior to a planned non-stormwater discharge or as soon as an unplanned non-stormwater discharge is observed to ensure that adequate sample collection personnel, supplies for non-stormwater discharge monitoring are available and will be mobilized to collect samples on the project site in accordance with the sampling schedule.
814
Bijou Park Connector Trail 50 March 2025
7.7.4.4 Analytical Constituents
All non-stormwater discharges that flow through a disturbed area shall, at minimum, be monitored for turbidity.
All non-stormwater discharges that flow through an area where they are exposed to pH altering materials shall be monitored for pH.
The QSP shall identify additional pollutants to be monitored for each non-stormwater discharge incident based on the source of the non-stormwater discharge. If the source of an unauthorized non-stormwater discharge is not known, monitoring for pH, turbidity, MBAS, TOC, and residual chlorine or chloramines is recommended to help identify the source of the discharge.
Non-stormwater discharge run-on shall be monitored, at minimum, for pH and turbidity. The QSP shall identify additional pollutants to be monitored for each non-stormwater discharge incident based on the source of the non-stormwater discharge. If the source of an unauthorized non-stormwater discharge is not known, monitoring for pH, turbidity, MBAS, TOC, and residual chlorine or chloramines is recommended to help identify the source of the discharge.
Table 7.22 lists the specific sources and types of potential non-visible pollutants on the project site and the water quality indicator constituent(s) for that pollutant.
Table 7.22 Potential Non-Stormwater Discharge Pollutants and Water Quality Indicator Constituents
Pollutant Source Pollutant Water Quality Indicator
Constituent
Disturbed Areas Sediment Turbidity
Concrete Work pH pH
7.7.4.5 Sample Collection
Samples shall be collected at the discharge locations where the non-stormwater discharge is leaving the project site. Potential discharge locations are shown on the Site Maps in Appendix B and identified in Section 7.7.4.2.
Grab samples shall be collected and preserved in accordance with the methods identified in Table 7.23. Only personnel trained in water quality sampling under the direction of the QSP shall collect samples.
Sample collection and handling requirements are described in Section 7.7.7.
7.7.4.6 Sample Analysis
Samples shall be analyzed using the analytical methods identified in Table 7.23.
7.7.4.7 Data Evaluation and Reporting
The QSP shall complete an evaluation of the water quality sample analytical results.
Turbidity and pH results shall be evaluated for compliance with NALs [and NELs] as identified in Section 7.7.2.7.
815
Bijou Park Connector Trail 51 March 2025
Runoff results shall also be evaluated for the constituents suspected in the non-stormwater discharge. Should the runoff sample indicate the discharge of a pollutant which cannot be explained by run-on results, the BMPs, site conditions, and surrounding influences shall be assessed to determine the probable cause for the increase.
As determined by the site and data evaluation, appropriate BMPs shall be repaired or modified to mitigate discharges of non-visible pollutant concentrations. Any revisions to the BMPs shall be recorded as an amendment to the SWPPP.
Non-storm water discharge results shall be submitted with the Annual Report.
The General Permit prohibits the non-storm water discharges that contain hazardous substances equal to or in excess of reportable quantities established in 40 C.F.R. §§ 117.3 and 302.4. The results of any non-stormwater discharge results that indicate the presence of a hazardous substance in excess of established reportable quantities shall be immediately reported to the Regional Water Board.
816
Bijou Park Connector Trail 52 March 2025
Table 7.23 Sample Collection, Preservation and Analysis for Monitoring Pollutants in Non-Stormwater Discharges Constituent Analytical Method
Minimum
Sample
Volume
Sample Bottle Sample Preservation Reporting Limit Maximum Holding Time pH
Field test with calibrated portable instrument
100mL Polypropylene Store at 4°C (39.2°F) 0.2 48 hours
Turbidity
Field test with calibrated portable instrument
100mL Polypropylene or Glass Store at 4°C (39.2°F) 1 NTU 48 hours Notes:
817
Bijou Park Connector Trail 53 March 2025
7.7.5 Sampling and Analysis Plan for Other Pollutants Required by the Regional Water Board
The Regional Water Board has not specified monitoring for additional pollutants.
7.7.6 Training of Sampling Personnel
Sampling personnel shall be trained to collect, maintain, and ship samples in accordance with the Surface Water Ambient Monitoring program (SWAMP) 2008 Quality Assurance Program Plan (QAPrP). Training records of designated contractor sampling personnel are provided in Appendix K.
The stormwater sampler(s) and alternate(s) have received the following stormwater sampling training:
Name Training
Jennifer Roman QSD/QSP Training and certification
The stormwater sampler(s) and alternates have the following stormwater sampling experience:
Name Experience
Jennifer Roman 10 years sampling experience
7.7.7 Sample and Handling
7.7.7.1 Sample Collection
Samples shall be collected at the designated sampling locations shown on the Site Maps and listed in the preceding sections. Samples shall be collected, maintained and shipped in accordance with the SWAMP 2008 Quality Assurance Program Plan (QAPrP).
Grab samples shall be collected and preserved in accordance with the methods identified in preceding sections.
To maintain sample integrity and prevent cross-contamination, sample collection personnel shall follow the protocols below.
Collect samples (for laboratory analysis) only in analytical laboratory-provided sample containers;
Wear clean, powder-free nitrile gloves when collecting samples; Change gloves whenever something not known to be clean has been touched; Change gloves between sites;
Decontaminate all equipment (e.g. bucket, tubing) prior to sample collection using a trisodium phosphate water wash, distilled water rinse, and final rinse with distilled water. (Dispose of wash and rinse water appropriately, i.e., do not discharge to storm drain or receiving water). Do not decontaminate laboratory provided sample containers; Do not smoke during sampling events;
Never sample near a running vehicle;
818
Bijou Park Connector Trail 54 March 2025
Do not park vehicles in the immediate sample collection area (even non-running vehicles);
Do not eat or drink during sample collection; and
Do not breathe, sneeze, or cough in the direction of an open sample container.
The most important aspect of grab sampling is to collect a sample that represents the entire runoff stream. Typically, samples are collected by dipping the collection container in the runoff flow paths and streams as noted below.
i. For small streams and flow paths, simply dip the bottle facing upstream until full. ii. For larger stream that can be safely accessed, collect a sample in the middle of the flow stream by directly dipping the mouth of the bottle. Once again making sure that the opening of the bottle is facing upstream as to avoid any contamination by the sampler. iii. For larger streams that cannot be safely waded, pole-samplers may be needed to safely access the representative flow.
iv. Avoid collecting samples from ponded, sluggish or stagnant water. v. Avoid collecting samples directly downstream from a bridge as the samples can be affected by the bridge structure or runoff from the road surface.
Note, that depending upon the specific analytical test, some containers may contain preservatives. These containers should never be dipped into the stream, but filled indirectly from the collection container.
SSC samples should be taken as a normal grab sample, where the bottle is submerged facing upstream and filled. SSC samples need to be collected in a separate bottle because the analysis requires the entire volume of the bottle. Do not collect in a larger container and partition into the laboratory sample container.
7.7.7.2 Sample Handling
Turbidity and pH measurements must be conducted immediately. Do not store turbidity or pH samples for later measurement.
Samples for laboratory analysis must be handled as follows. Immediately following sample collection:
Cap sample containers;
Complete sample container labels;
Sealed containers in a re-sealable storage bag;
Place sample containers into an ice-chilled cooler;
Document sample information on the Effluent Sampling Field Log Sheet; and Complete the CoC.
All samples for laboratory analysis must be maintained between 0-6 degrees Celsius during delivery to the laboratory. Samples must be kept on ice, or refrigerated, from sample collection through delivery to the laboratory. Place samples to be shipped inside coolers with ice. Make sure the sample bottles are well packaged to prevent breakage and secure cooler lids with packaging tape.
Ship samples that will be laboratory analyzed to the analytical laboratory right away. Hold times are measured from the time the sample is collected to the time the sample is analyzed. The 819
Bijou Park Connector Trail 55 March 2025
General Permit requires that samples be received by the analytical laboratory within 48 hours of the physical sampling (unless required sooner by the analytical laboratory).
Laboratory Name: Alpha Analytical, Inc.
Street Address: 255 Glendale Avenue, Suite 21
City, State Zip: Sparks, NV 89431
Telephone Number: (775) 355-1044
Point of Contact: Reyna Vallejo
7.7.7.3 Sample Documentation Procedures
All original data documented on sample bottle identification labels, Effluent Sampling Field Log Sheet, and CoCs shall be recorded using waterproof ink. These shall be considered accountable documents. If an error is made on an accountable document, the individual shall make corrections by lining through the error and entering the correct information. The erroneous information shall not be obliterated. All corrections shall be initialed and dated.
Duplicate samples shall be identified consistent with the numbering system for other samples to prevent the laboratory from identifying duplicate samples. Duplicate samples shall be identified in the Effluent Sampling Field Log Sheet.
Sample documentation procedures include the following:
Sample Bottle Identification Labels: Sampling personnel shall attach an identification label to each sample bottle. Sample identification shall uniquely identify each sample location.
Field Log Sheets: Sampling personnel shall complete the Effluent Sampling Field Log Sheet and Receiving Water Sampling Field Log Sheet for each sampling event, as appropriate.
Chain of Custody: Sampling personnel shall complete the CoC for each sampling event for which samples are collected for laboratory analysis. The sampler will sign the CoC when the sample(s) is turned over to the testing laboratory or courier.
7.8 Active Treatment System Monitoring
An Active Treatment System (ATS) will be deployed on the site? Yes No
This project does not require a project specific Sampling and Analysis Plan for an ATS because deployment of an ATS is not planned.
7.9 Bioassessment Monitoring
This project is not subject to bioassessment monitoring because it does not disturb more than 30 acres
7.10 Watershed Monitoring Option
This project is not participating in a watershed monitoring option. 820
Bijou Park Connector Trail 56 March 2025
7.11 Quality Assurance and Quality Control
An effective Quality Assurance and Quality Control (QA/QC) plan shall be implemented as part of the CSMP to ensure that analytical data can be used with confidence. QA/QC procedures to be initiated include the following:
Field logs;
Clean sampling techniques;
CoCs;
QA/QC Samples; and
Data verification.
Each of these procedures is discussed in more detail in the following sections.
7.11.1 Field Logs
The purpose of field logs is to record sampling information and field observations during monitoring that may explain any uncharacteristic analytical results. Sampling information to be included in the field log include the date and time of water quality sample collection, sampling personnel, sample container identification numbers, and types of samples that were collected.
Field observations should be noted in the field log for any abnormalities at the sampling location (color, odor, BMPs, etc.). Field measurements for pH and turbidity should also be recorded in the field log. A Visual Inspection Field Log, an Effluent Sampling Field Log Sheet, are included in CSMP Attachment 3 “Example Forms”.
7.11.2 Clean Sampling Techniques
Clean sampling techniques involve the use of certified clean containers for sample collection and clean powder-free nitrile gloves during sample collection and handling. As discussed in Section
7.7.7, adoption of a clean sampling approach will minimize the chance of field contamination and questionable data results.
7.11.3 Chain of Custody
The sample CoC is an important documentation step that tracks samples from collection through analysis to ensure the validity of the sample. Sample CoC procedures include the following:
Proper labeling of samples;
Use of CoC forms for all samples; and
Prompt sample delivery to the analytical laboratory.
Analytical laboratories usually provide CoC forms to be filled out for sample containers. An example CoC is included in CSMP Attachment 3 “Example Forms”.
7.11.4 QA/QC Samples
QA/QC samples provide an indication of the accuracy and precision of the sample collection; sample handling; field measurements; and analytical laboratory methods. The following types of QA/QC will be conducted for this project:
Field Duplicates at a frequency of one duplicate minimum per sampling event (Required for all sampling plans with field measurements or laboratory analysis) 821
Bijou Park Connector Trail 57 March 2025
Equipment Blanks (Only needed if equipment used to collect samples could add the pollutants to sample)
Field Blanks (Only required if sampling method calls for field blanks) Travel Blanks (Required for sampling plans that include VOC laboratory analysis)
7.11.4.1 Field Duplicates
Field duplicates provide verification of laboratory or field analysis and sample collection.
Duplicate samples shall be collected, handled, and analyzed using the same protocols as primary samples. The sample location where field duplicates are collected shall be randomly selected from the discharge locations. Duplicate samples shall be collected immediately after the primary sample has been collected. Duplicate samples must be collected in the same manner and as close in time as possible to the original sample. Duplicate samples shall not influence any evaluations or conclusion.
7.11.4.2 Equipment Blanks
Equipment blanks provide verification that equipment has not introduced a pollutant into the sample. Equipment blanks are typically collected when:
New equipment is used;
Equipment that has been cleaned after use at a contaminated site; Equipment that is not dedicated for surface water sampling is used; or Whenever a new lot of filters is used when sampling metals.
7.11.4.3 Field Blanks
Field blanks assess potential sample contamination levels that occur during field sampling activities. De-ioninzed water field blanks are taken to the field, transferred to the appropriate container, and treated the same as the corresponding sample type during the course of a sampling event.
7.11.4.4 Travel Blanks
Travel blanks assess the potential for cross-contamination of volatile constituents between sample containers during shipment from the field to the laboratory. De-ioninzed water blanks are taken along for the trip and held unopened in the same cooler with the VOC samples.
7.11.5 Data Verification
After results are received from the analytical laboratory, the QSP shall verify the data to ensure that it is complete, accurate, and the appropriate QA/QC requirements were met. Data must be verified as soon as the data reports are received. Data verification shall include:
Check the CoC and laboratory reports.
Make sure all requested analyses were performed and all samples are accounted for in the reports.
Check laboratory reports to make sure hold times were met and that the reporting levels meet or are lower than the reporting levels agreed to in the contract. 822
Bijou Park Connector Trail 58 March 2025
Check data for outlier values and follow up with the laboratory.
Occasionally typographical errors, unit reporting errors, or incomplete results are reported and should be easily detected. These errors need to be identified, clarified, and corrected quickly by the laboratory. The QSP should especially note data that is an order of magnitude or more different than similar locations, or is inconsistent with previous data from the same location.
Check laboratory QA/QC results.
EPA establishes QA/QC checks and acceptable criteria for laboratory analyses. These data are typically reported along with the sample results. The QSP shall evaluate the reported QA/QC data to check for contamination (method, field, and equipment blanks), precision (laboratory matrix spike duplicates), and accuracy (matrix spikes and laboratory control samples). When QA/QC checks are outside acceptable ranges, the laboratory must flag the data, and usually provides an explanation of the potential impact to the sample results.
Check the data set for outlier values and, accordingly, confirm results and re-analyze samples where appropriate.
Sample re-analysis should only be undertaken when it appears that some part of the QA/QC resulted in a value out of the accepted range. Sample results may not be discounted unless the analytical laboratory identifies the required QA/QC criteria were not met and confirms this in writing.
Field data including inspections and observations must be verified as soon as the field logs are received, typically at the end of the sampling event. Field data verification shall include:
Check field logs to make sure all required measurements were completed and appropriately documented;
Check reported values that appear out of the typical range or inconsistent; Follow-up immediately to identify potential reporting or equipment problems, if appropriate, recalibrate equipment after sampling;
Verify equipment calibrations;
Review observations noted on the field logs; and
Review notations of any errors and actions taken to correct the equipment or recording errors.
7.12 Records Retention
All records of stormwater monitoring information and copies of reports (including Annual Reports) must be retained for a period of at least three years from date of submittal or longer if required by the Regional Water Board.
Results of visual monitoring, field measurements, and laboratory analyses must be kept in the SWPPP along with CoCs, and other documentation related to the monitoring.
Records are to be kept onsite while construction is ongoing. Records to be retained include:
The date, place, and time of inspections, sampling, visual observations, and/or measurements, including precipitation;
The individual(s) who performed the inspections, sampling, visual observation, and/or field measurements;
823
Bijou Park Connector Trail 59 March 2025
The date and approximate time of field measurements and laboratory analyses; The individual(s) who performed the laboratory analyses; A summary of all analytical results, the method detection limits and reporting limits, and the analytical techniques or methods used;
Rain gauge readings from site inspections;
QA/QC records and results;
Calibration records;
Visual observation and sample collection exemption records; The records of any corrective actions and follow-up activities that resulted from analytical results, visual observations, or inspections; and, NAL Exceedance Reports.
824
Bijou Park Connector Trail 60 March 2025
CSMP Attachment 1: Weather Reports
825
Bijou Park Connector Trail 61 March 2025
CSMP Attachment 2: Monitoring Records
826
Bijou Park Connector Trail 62 March 2025
CSMP Attachment 3: Example Forms
827
Bijou Park Connector Trail 63 March 2025
Rain Gauge Log Sheet
Construction Site Name:
WDID #:
Date
(mm/dd/yy)
Time
(24-hr) Initials Rainfall Depth (Inches) Notes:
828
Bijou Park Connector Trail 64 March 2025
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection Type: □ Daily □ Before
predicted
rain
□ During
rain
event
□
Following
qualifying
rain event
□
Contained
stormwater
release
□ Quarterly
nonstormwater
Site Information
Construction Site Name:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time
since last storm:
________
(days or hours)
Rain gauge
reading: _______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists) Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed) Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
829
Bijou Park Connector Trail 65 March 2025
Effluent Sampling Field Log Sheets
Construction Site Name: Date: Time Start:
Sampler:
Sampling Event Type: □ Stormwater □ Non-stormwater □ Non-visible pollutant Field Meter Calibration
pH Meter ID No./Desc.:
Calibration Date/Time:
Turbidity Meter ID No./Desc.:
Calibration Date/Time:
Field pH and Turbidity Measurements
Discharge Location Description pH Turbidity Time
Grab Samples Collected
Discharge Location Description Other (specify) Time
Additional Sampling Notes:
Time End:
830
Bijou Park Connector Trail 66 March 2025
Receiving Water Sampling Field Log Sheets
Construction Site Name: Date: Time Start:
Sampler:
Receiving Water Description and Observations
Receiving Water Name/ID:
Observations:
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Field Meter Calibration
pH Meter ID No./Desc.:
Calibration Date/Time:
Turbidity Meter ID No./Desc.:
Calibration Date/Time:
Field pH and Turbidity Measurements and SSC Grab Sample Upstream Location
Type Result Time Notes
pH
Turbidity
SSC Collected
Yes □ No □
Downstream Location
Type Result Time Notes
pH
Turbidity
SSC Collected
Yes □ No □
Additional Sampling Notes:
Time End:
831
Bijou Park Connector Trail 67 March 2025
NAL Exceedance Evaluation Summary Report Page __ of __
Project Name
Project WDID
Project Location
Date of Exceedance
Type of Exceedance
NAL Daily Average pH Turbidity
Other (specify)
Measurement or
Analytical Method
Field meter
(Sensitivity: )
Lab method (specify)
(Reporting Limit: )
(MDL: )
Calculated Daily
Average
pH pH units
Turbidity NTU
Rain Gauge
Measurement inches
Compliance Storm
Event Not greater than 1 inch in one hour (20-year, 1-hour event) Visual Observations
on Day of
Exceedance
832
Bijou Park Connector Trail 68 March 2025
NAL Exceedance Evaluation Summary Report Page __ of __
Description of BMPs
in Place at Time of
Event
Initial Assessment of
Cause
Corrective Actions
Taken (deployed
after exceedance)
Additional Corrective
Actions Proposed
Report Completed By
(Print Name, Title)
Signature
833
Bijou Park Connector Trail 69 March 2025
CHAIN-OF-CUSTODY DATE: Lab ID:
DESTINATION LAB:
REQUESTED
ANALYSIS Notes:
ATTN:
ADDRESS:
Office Phone:
Cell Phone:
SAMPLED BY:
Contact:
Project Name
Client Sample ID Sample Sample Sample Container Date Time Matrix # Type Pres.
SENDER COMMENTS:
RELINQUISHED
BY
Signature:
Print:
Company:
Date: TIME:
LABORATORY COMMENTS: RECEIVED BY
Signature: Print: Company: Date: TIME:
834
Bijou Park Connector Trail 70 March 2025
CSMP Attachment 4: Field Meter Instructions
835
USER GUIDE
ExStikTM Waterproof pH Meters
Models PH100 and PH110
Patent Pending
836
2 PH100/PH110-en-GB_v3.1 3/15
Introduction
Thank you for selecting the Extech Model PH100 and/or the model PH110 (refillable) meter. This instrument is designed for high accuracy pH testing. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, Product Registration, and Customer Support.
837
3 PH100/PH110-en-GB_v3.1 3/15
ExStikTM Description
Front Panel Controls
1. Battery compartment cap
2. LCD Display
3. MODE / HOLD button
4. CAL / RECALL button
5. ON/OFF button
6. Electrode collar
7. Electrode (refillable)
(Electrode cap is not shown)
Display
1. Bargraph reading
2. Measurement reading
3. BAT (low battery) and
HOLD (data hold) indicators
4. Temperature display
5. Bargraph scale designations
6. Units of measure
7. Calibration indicators
8. RENEW and CAL indicators
CAUTIONS
This device is not a toy and must not reach children’s hands. It contains hazardous objects as well as small parts that the children could swallow. In case a child swallows any of them, please contact a physician immediately
Do not leave batteries and packing material lying around unattended; they can be dangerous for children if they use them as toys
In case the device is going to be unused for an extended period of time, remove the batteries to prevent them from draining
Expired or damaged batteries can cause cauterization on contact with the skin. Always, use suitable hand gloves in such cases
See that the batteries are not short-circuited. Do not throw batteries into the fire. 838
4 PH100/PH110-en-GB_v3.1 3/15
Overview
pH Overview
pH is a unit of measure (ranging from 0 to 14pH) indicating the degree of acidity or alkalinity of a solution. pH tests are the most commonly performed measurements in water analysis and reports the negative log of the hydrogen ion activity of a solution which is an indicator of acidity or alkalinity.
Solutions with a pH less than 7 are considered acidic, solutions with a pH higher than 7 are known as bases, and solutions with a pH of exactly 7 are neutral.
The pH scale is logarithmic so, for example, if sample A is 1 pH less than Sample B, this means that Sample A is 10 times more acidic then Sample B. A difference of 1 pH represents a ten-fold difference in acidity.
Getting Started
For new meters, remove the battery cap and then remove the battery insulating strip. Remove the cap from the bottom of the ExStikTM to expose the electrode glass surface and reference junction
Before first use or after extended storage, soak the electrode (with its cap removed) in a pH 4 solution for about 10 minutes
White KCL crystals may be present in the cap. These crystals will dissolve in the soak or they can be simply rinsed with tap water
Always calibrate close to the expected measurement value A sponge is located in the electrode protective cap. Keep this sponge soaked with a pH 4 solution to preserve Electrode life during storage
Replacing Electrodes
The ExStikTM is shipped with an electrode attached. Electrode life is limited and is dependent on (among other factors) frequency of use and care. If the electrode needs to be replaced, follow these steps for removing and connecting electrodes. Note that the PH110 has a refillable electrode.
1. To remove an electrode, unscrew and completely remove the electrode retaining collar.
2. Gently rock the electrode from side to side, pulling it away from the meter, until it disconnects.
3. To attach an electrode, carefully plug the electrode into the meter socket (note that the electrode connector is keyed, ensuring proper connection).
4. Secure the electrode in place by tightly turning the collar in place. (a rubber gasket seals the electrode with the meter).
Automatic Electrode Recognition
When the ExStikTM is turned on, it recognizes the type of electrode that is connected and displays the appropriate unit of measure. Attach electrode before turning the ExStikTM on.
Powering the ExStik™
If the batteries are weak, the ‘BAT’ indicator appears on the LCD. Press the ON/OFF key to turn the ExStikTM on or off. The auto power off feature shuts the ExStikTM off automatically after 10 minutes of inactivity to preserve battery life.
839
5 PH100/PH110-en-GB_v3.1 3/15
Operation
Overview
When the electrode is placed in a solution, the main display and bargraph indicate the pH reading while the lower display reads temperature (readings flash until they have stabilized). The bargraph is ‘center zero’, i.e. at pH 7 there is no display. As the pH rises, the bar moves from the center to the right. If the pH drops, the bar moves from the center to the left. pH Calibration (1, 2, or 3 points)
A two point calibration with a buffer of 7 plus 4 or 10 (whichever is nearest to the expected sample value) is always recommended. A one point calibration (choose the value closest to the expected sample value) is also valid. For best accuracy, always calibrate at the sample temperature.
1. Place the electrode into a buffer solution (4, 7, or 10) and momentarily press the CAL key. pH 7 should be calibrated first, then 4 and/or 10 pH.
2. The ExStikTM automatically recognizes the solution and calibrates itself to that value. Note: If the solution is more than 1pH off from the 4, 7, or 10pH standard, the ExStikTM will assume an error and abort the calibration. CAL and END will be displayed.
3. During calibration, the pH reading flashes on the main display.
4. When calibration is complete, the ExStikTM automatically displays ‘END’ and returns to normal operation mode.
5. The appropriate circled indicator ➃ ,➆ , or ➉ will appear on the LCD when a calibration has been completed. The calibration data is stored until a new calibration is performed.
6. For a two or three point calibration, repeat steps 1-4.
Note: Always turn the meter off and then on before calibrating to allow sufficient time to complete the calibrations during one power cycle. If the meter auto powers off during calibration the calibrations remain valid, but new calibrations will turn the circled indicators off.
Note: The Automatic Temperature Compensation (ATC) circuit is not active during calibration. To ensure a more accurate calibration, make sure that the calibration buffers are at 25°C (77°F).
RESET
If the meter will not calibrate or displays a -1, reset the meter and attempt to re-calibrate.
1. Turn off the meter.
2. Remove the battery cartridge from the top of the meter.
3. Press the On/Off button for 10 seconds to bleed off all charges within the meter.
4. Re-insert the batteries and power on the meter.
5. Attempt to re-calibrate the meter.
Changing the Displayed Temperature Units
Press and hold the CAL button for approx. 3 seconds. The oC or oF icon will change first and the numerical temperature value will change after the button is released. If the Calibration mode is accidentally accessed ‘CAL’ appears on the LCD. Simply turn the ExStikTM off and start again.
Data Hold
Momentarily press the MODE button to freeze the current reading. The HOLD display icon will appear along with the held reading. The held reading will also be stored in memory. Momentarily press the MODE key to return to normal operation.
840
6 PH100/PH110-en-GB_v3.1 3/15
15-Storing Readings into Memory
1. Momentarily press the MODE button to store a reading.
The LCD will briefly display the memory location
number and then the value stored (Data Hold will
activate).
2. Momentarily press MODE again to return to normal
operation.
3. Repeat step 1 to store the next reading and so on.
4. After 15 readings are stored the ExStikTM will return to memory location 1 and start overwriting existing data with newly stored data.
Recalling Stored Readings
Note: Check that the HOLD symbol is not displayed. If it is, exit the HOLD function by momentarily pressing the MODE button.
1. Momentarily press the CAL button and then press the MODE button immediately after CAL is displayed; the storage location number (1 through 15) will flash. If the CAL mode is accidentally accessed (display flashing), press the CAL button again to exit.
2. The last reading stored will be displayed first. To advance through the stored readings, momentarily press the MODE button. The location number is displayed first, followed by the reading stored in that location.
3. To exit the recall mode, momentarily press the CAL button and the ExStikTM will return to normal operation.
CAL Reminder Display
When the ExStikTM is turned on in the pH mode for the 15th time without recalibration, the ‘CAL’ icon appears on the LCD indicating that the ExStikTM may require calibration. Some applications may require recalibration of the electrode more frequently than others. The CAL display is simply a reminder and will turn off when the pH electrode is recalibrated.
RENEW Display
A flashing ‘RENEW’ warning indicates that the probe may be nearing the end of its useful life. If cleaning or recalibration does not cause the RENEW icon to disappear, replace the electrode. The RENEW display appears when the output of the pH electrode fails a diagnostic test.
Considerations
If the unit appears to be locked (display frozen) it is possible that the Data Hold mode has been inadvertently accessed by pressing the MODE button. Simply press the MODE button again or turn the meter off and restart if the display appears frozen. If the meter does latch up and no button presses revive it, remove the batteries, push the ON button for 10 seconds and then reinsert the batteries.
Note that if the batteries are removed, any stored readings will be discarded. Also, the user calibration data for pH will be cleared. New user pH calibration data is required. Factory calibration data for all models will be retained, however. 841
7 PH100/PH110-en-GB_v3.1 3/15
Battery Replacement
1. Twist off the battery compartment cap
2. Replace the four (4) 2032 batteries observing polarity.
3. Replace the battery compartment cap
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end-oflife devices to a designated collection point for the disposal of electrical and electronic equipment.
Other Battery Safety Reminders
o Never dispose of batteries in a fire. Batteries may explode or leak. o Never mix battery types. Always install new batteries of the same type. pH Electrode Refilling (pH110/115 refillable electrode only) The refillable electrode does not need to be detached from the body of the ExStikTM in order to perform the refilling procedure. Refillable electrodes (PH115) have a removable reference junction (slotted) and the word REFILLABLE on the side of the electrode housing.
Removing the Reference Junction
The removal tool supplied with the PH113
Refill Kit is used to remove the reference
junction from the sensing surface of the
electrode. If the reference junction does not
have slots for the ‘teeth’ of the removal tool to
lock onto, the electrode is NOT refillable.
Holding the electrode upside down, unscrew
and remove the reference junction using the
removal tool.
Filling the Electrode
1. Once the reference junction is removed, fill the cavity with the refill solution supplied in the Refill Kit.
2. Replace the reference junction using the removal/installation tool. (Spare junctions are provided if needed).
Filling Solution
The supplied container includes 15ml of filling solution. There is enough solution for 4 to 5 refills.
Use only the supplied solution for refilling the electrode.
Refillable
pH Module
Reference junction
Junction removal tool
842
8 PH100/PH110-en-GB_v3.1 3/15
Specifications
Display Multifunction LCD with Bargraph
Operating conditions 32 to 122o
F (0 to 50oC) / < 80% RH
Range and Accuracy 0.00 to 14.00 / ± 0.01pH typical
Temp. Compensation Automatic from 32 to 194o
F (0 to 90oC)
Temperature Range 23 to 194o
F (-5 to 90oC)
Temperature Resolution 0.1o
up to 99.9 then 1o thereafter
Temperature Accuracy ± 1o
C/1.8oF [from -5 to 50oC (23 to 122oF)]
± 3o
C/5.4oF [from 50 to 90oC (122 to 194oF)]
Measurement storage 15 tagged (numbered) readings
Power Four (4) CR2032 button batteries
Low battery indication ‘BAT’ appears on the LCD
Auto power off After 10 minutes of inactivity
Dimensions 1.4x6.8x1.6”(35.6x172.7x40.6mm); 3.85oz (110g) Optional Accessories
Tripak buffers with 4, 7 & 10 pH capsules (6 each) plus two rinsing solutions (Part Number:
PH103)
pH 4.01 buffer, pint, (Part Number PH4-P)
pH 7.00 buffer, pint, (Part Number PH7-P)
pH 10.00 buffer, pint, (Part Number PH10-P)
Spare pH Electrode – non-refillable (Part Number: PH105) Spare pH Electrode - refillable (Part number PH115)
Electrode Refill solution (Part number PH113)
Spare ORP electrode (Part Number: RE305)
Spare Chlorine electrode (Part Number: CL205)
Weighted base with 5 solution cups (Part Number: EX006) Note: If the unit is to be converted for ORP or Chlorine use by attaching the proper electrode, please visit www.extech.com to download the proper User Guide Copyright © 2014‐2015 FLIR Systems, Inc.
All rights reserved including the right of reproduction in whole or in part in any form ISO‐9001 Certified
www.extech.com
843
Instruction Manual
TN-100/ T-100
Portable Turbidimeter
Technology Made Easy ...
68X357701
Rev. 0.1 05/03
844
Preface
This manual functions in two ways: first as a step by step guide to help you operate the waterproof TN-100/ T-100 turbidimeter; second, it serves as a handy reference guide.
It contains basic instructions that you must follow during the operation, care and maintenance of the instrument. The safety protection provided by this equipment may be impaired if it is used in a manner not described in this manual. It is recommended that all operators should read this manual prior to working with this instrument.
Eutech Instruments/ Oakton Instruments cannot accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument.
The information presented in this manual is subject to change without notice as improvements are made, and does not represent a commitment on the part of Eutech Instruments Pte Ltd/ Oakton Instruments.
Note: Eutech Instruments Pte Ltd/ Oakton Instruments reserves the right to make improvements in design, construction, and appearance of our products without notice.
Copyright © 2003 All rights reserved.
Eutech Instruments Pte Ltd
Oakton Instruments
Rev. 0.1 05/03
845
TABLE OF CONTENTS
1 OVERVIEW........................................................................................ 1
1.1 Unpacking TN-100/ T-100 Meter and Accessories 1
1.2 Display 2
1.3 Keys and Functions 3
1.4 Battery Installation 4
2 TURBIDITY CALIBRATION .............................................................. 5
2.1 Calibration Standards 5
2.2 Indexing 5
2.3 Calibration Procedure 6
2.4 Restoring Factory Calibration 8
3 TURBIDITY MEASUREMENT......................................................... 10
3.1 General Information 10
3.2 Turbidity Measurement Procedure 10
3.2.1Preparation of Sample Vial 11
3.2.2Measurement Procedure 12
3.3 Single-Shot or Continuous Measurement 13
4 TROUBLESHOOTING GUIDE ........................................................ 15 5 ROUTINE MAINTENANCE ............................................................. 16
5.1 Vials – Handling, Cleaning and Care 16
6 ACCESSORIES ............................................................................... 17 7 SPECIFICATIONS ........................................................................... 18 8 ADDENDUM 1: TURBIDITY............................................................ 19
8.1 Definition 19
8.2 Why Is It Important? 19
8.3 Measurement Principle 19
8.4 Nephelometric Turbidity Units (NTU) 20
8.5 Indexing a Vial 20
9 ADDENDUM 2: GUIDE TO GOOD MEASUREMENT TECHNIQUE
21 9.1 Maintain sample vials in good condition 21
9.2 Match Sample Vials 21
9.3 Degassing 21
9.4 Timeliness of Sample 22
9.5 Other Important Sampling Techniques 22
9.6 Calibration 23
9.7 Dilution 23
10 WARRANTY .................................................................................... 24 11 RETURN OF ITEMS ........................................................................ 24 846
Instruction Manual TN-100/ T-100
1 1 OVERVIEW
Thank you for selecting the waterproof portable TN-100/ T-100 turbidimeter. The TN-100/ T-100 allows you to measure turbidity of an aqueous sample in the field. This instrument operates on the nephelometric principle of turbidity measurement and is designed to meet the criteria specified in ISO 7027 and DIN 27027 standards (see Measurement Principle on page 19).
1.1 Unpacking TN-100/ T-100 Meter and Accessories
The table below indicates the items that you should find in your turbidimeter shipment.
Item Quantity
1. Field Portable TN-100/ T-100 Turbidimeter with 4 “AAA” batteries
1 2. Instruction Manual 1
3. Instrument Carrying Case 1
4. Calibration Set (0.02, 20.0,100, 800 NTU Standards) 1
5. Empty Vials 3
6. Plastic bottle (empty – for collecting sample) 1
7. Silicone Oil 1
8. Lint free cloth 1
Remove TN-100/ T-100 turbidimeter from the packing carton. Carefully inspect all items to ensure that no visible damage has occurred during shipment. If the items you received do not match your order, please contact your nearest distributor immediately.
WARNING: Extra care should be taken when
unpacking, opening, and handling the calibration
standards and sample vials. Surface scratches or
finger smudges on the vial surface may cause
measurement errors. Handle these items by their
caps only.
Batteries provided with the meter package are to be installed prior to use.
See Section 1.4 - Battery Installation on page 4.
Figure 1 depicts the meter. The three main components of the instrument are the sample well, the display, and the keypad. The following sections will describe the functionality of the display and the keypad. The proper use of the instrument and the sample well will be discussed in later sections.
847
Instruction Manual TN-100/ T-100
2 Sample Vial
Sample Well
Index Mark
Liquid Crystal Display
Keypad
Figure 1: Parts of TN-100/ T-100 Turbidimeter
1.2 Display
All the LCD segments and annunciators that can appear on the display are shown in Figure 2. The display is used for reporting the turbidity reading and to provide guidance for the operation of the instrument. In addition, the display has several other annunciators that are used to communicate error messages and provide user guidance.
CAL 13 CAL 24
mg/l
NTU
ppm
%pH
TAvg
14-segment Liquid Crystal Display
Battery Indicator
Calibration
Standards
Units of
Measurement
Figure 2: Customized LCD when switched on
848
Instruction Manual TN-100/ T-100
3 1.3 Keys and Functions
The keypad has five keys: ON/OFF, CAL, ▲, ▼, and READ/ENTER.
Keys Functions
ON/OFF - Powers on and shuts off the meter. With the auto switch-off feature the meter automatically shuts off 20 minutes after last key press.
CAL - Initiates the calibration mode of the meter. When pressed, the meter is set to accept the first calibration standard.
- It is also used to exit the calibration mode if the user does not want to follow the complete calibration procedure.
READ /
ENTER
- When in measurement mode, the READ/ENTER key is used to perform a measurement.
- Single-shot measurements: When the key is pressed and released immediately (a quick key stroke of less than 0.3 seconds), the display will blink [-Rd-] for 10 times and then display the measured value.
- Continuous measurements: If the READ/ENTER key is pressed and held, the instrument will perform a continuous measurement during which the display is updated every 2 seconds. This can be used for indexing vials. (This function is not available in calibration mode).
After the READ/ENTER key is released, the instrument will automatically perform a single-shot measurement.
- When in calibration mode, the READ/ENTER key is used to confirm the measurement for the calibration standards.
▲and▼ - Active only during calibration mode. These keys are used to select the calibration point in an incremental/ decremental manner.
NOTE: This meter is also fitted with an auto incrementing feature, i.e. after the successful calibration of one point it auto selects the next calibration point, or automatically exits the calibration mode after the fourth calibration point.
READ
ENTER
CAL
OFF
ON
WATERPROOF
849
Instruction Manual TN-100/ T-100
4 1.4 Battery Installation
Four AAA-sized batteries are included in your meter’s packaging:
1. Use a Philips screwdriver to remove the two screws holding the battery cover. See Figure 3.
2. Remove the battery cover.
3. Insert the batteries. Follow the diagram inside the cover for correct polarity.
4. Replace the battery cover onto its original position using the two screws removed earlier.
5. The meter is now ready to operate.
Philips Screws
Battery cover
Four 'AAA'-sized batteries
Figure 3: Battery Installation
NOTE:
Dispose used batteries in accordance with your local
regulations.
850
Instruction Manual TN-100/ T-100
5 2 TURBIDITY CALIBRATION
The TN-100/ T-100 turbidimeter was calibrated and tested prior to leaving the factory. Therefore, it is possible to use the instrument directly out of the box. However, re-calibration of the instrument is recommended to help you become familiar with the operation of the instrument and the calibration procedures. In addition, re-calibration is recommended at least once every month for optimum accuracy.
It is recommended that you perform a full calibration using all 4 standards provided to ensure full-range accuracy.
However, the TN-100/ T-100 turbidimeter provides flexibility for you to calibrate at selected ranges suitable for your application.
2.1 Calibration Standards
We recommend that you use the following materials during calibration to achieve the accuracy stated in this manual:
CAL 1: 800 NTU Calibration Standard
CAL 2: 100 NTU Calibration Standard
CAL 3: 20.0 NTU Calibration Standard
CAL 4: 0.02 NTU Calibration Standard
It is well known that diluted Formazin is unstable. If you choose to use Formazin to calibrate the instrument, ensure that you are using a fresh stock suspension of Formazin to achieve the accuracy quoted for the instrument. Calibration standards offered are more stable than Formazin and have a limited shelf life of 12 months. If you use the supplied calibration standards to calibrate the instrument, review the expiration date (indicated on cap label) to ensure that the standards have not expired.
2.2 Indexing
Due to the high quality of the glass vials provided, indexing is not required.
You only need to align the mark on the vial with the mark on the meter.
However, in order to achieve a better accuracy of the measurement, you can proceed with indexing of the vials. See Section 8.5 - Indexing a Vial on page 20 for more information.
851
Instruction Manual TN-100/ T-100
6 2.3 Calibration Procedure
1. Place TN-100/ T-100 turbidimeter on a flat and level surface.
2. Select the calibration function of the instrument by pressing the CAL button once. The [CAL] annunciator will blink momentarily and the meter will prompt for the first calibration standard CAL 1 standard (800 NTU).
3. Insert the CAL 1 standard (800 NTU) into the sample well, aligning the mark on the vial with the mark on the meter. See Figure 10 on page
12. 4. Press down until the vial snaps fully into the instrument.
5. Press READ/ENTER key.
6. The [CAL 1 800 NTU] annunciator will blink for about 12 seconds.
When the instrument has completed calibration for this point, it prompts you to insert the next calibration standard into the sample well [CAL 2 (100 NTU).
7. Repeat the calibration sequence for each calibration standard.
8. After you successfully calibrate the CAL 4 standard (0.02 NTU), the display will show [STbY].
9. The meter is now ready to perform next measurement.
Figure 4 shows the complete calibration sequence.
NOTES:
1. If you wish to exit the calibration mode you may
do so at the end of any step by pressing the CAL
key. The meter will accept only the values
calibrated prior to exiting.
2. You can skip a calibration point by pressing ▲ or
▼ keys and move on to the next calibration point.
3. After a successful calibration of one point, it will auto select the next calibration point. It will
automatically exit calibration mode after the fourth
calibration point.
4. If an error occurs during calibration, the display
will present an error message. The meter will
abort calibration and return to the measurement
mode without saving the last calibration value.
5. For a list of error messages, refer to Section 4:
Troubleshooting Guide on page 15.
852
Instruction Manual TN-100/ T-100
7 CAL 1
800 NTU
NTU
CAL 1
NTU
NTU
CAL 3
CAL 3
NTU
CAL 2
NTU
CAL 2
READ
ENTER
NTU
CAL 1
CAL
Place the CAL 1
standard into the
sample well
Place the next CAL
3 standard into the
sample well Flashes about
5 times
Flashes about 10
times or more
Flashes about 10
times or more
Flashes about 10
times or more
Flashes about 10
times or more
CAL 3
CAL 4
20.0 NTU
0.02 NTU
NTU
NTU
CAL 4
CAL 4
READ
ENTER
READ
ENTER
Place the next CAL
2 standard into the
sample well
Place the next CAL
4 standard into the
sample well
The TN-100/ T-100 meter is now ready
for measurement
CAL 2
100 NTU
READ
ENTER
Figure 4: Calibration Sequence
853
Instruction Manual TN-100/ T-100
8 2.4 Restoring Factory Calibration
The TN-100/ T-100 turbidimeter allows you to reset the meter back to the factory default calibration values. This feature is extremely useful when there are errors in calibration or when you have new calibration standards.
1. With the meter switched off, press ▲ and ON/OFF keys simultaneously for about 2 seconds.
2. The display will flash [URST] (User-Reset) for 2 seconds and show [No], which is the default value.
3. Use ▲ or ▼ key to select between [YES] or [No].
[YES] = To restore meter back to factory calibration values [No] = To retain last calibrated values
4. After selecting [YES] or [No], press READ/ENTER key.
5. The display will flash [--Rd--] 10 times.
6. Once it stops flashing, it will show [--Rd--]. It is now ready to take turbidity measurements.
Figure 5 shows the sequence for restoring factory calibration values. 854
Instruction Manual TN-100/ T-100
9 READ
ENTER
READ
ENTER
Press and
keys simultaneously and
hold for 2 seconds before
releasing
UP ON/OFF
[-Rd-] will flash 10 times
The meter is now ready for measurement
Press or key to
select or
UP DOWN
YES No
To restore factory
calibration
To retain last
calibration values
without retrieving
factory calibration.
METER OFF
OFF
ON
Figure 5: Restoring Factory Calibration
855
Instruction Manual TN-100/ T-100
10 3 TURBIDITY MEASUREMENT
3.1 General Information
The waterproof TN-100/ T-100 turbidimeter allows you to measure the turbidity of a grab sample. The turbidity is reported in Nephelometric Turbidity Units (NTU). Readings above 1000 NTU are outside the range of this instrument.
NOTE:
Before switching on the TN-100/ T-100 turbidimeter,
a sample vial MUST be placed in the sample well.
You can use any of the calibration standards for this
purpose.
The meter will go through a power sequence as shown in Figure 6.
CAL 13 CAL 24
mg/l
NTU
ppm
%pH
TAvg
NTU
OFF
ON
"Rd" will flash 10 times
before a reading appears
(assuming you have
placed a vial into the
sample well of the meter
A reading will only appear
if you have placed a vial
or any of the calibration
standards provided into
the sample well.
Otherwise an error
message "Err 8" will
appear.
Figure 6: Power-up sequence
3.2 Turbidity Measurement Procedure
An accurate turbidity measurement depends on good measurement techniques. Factors such as clean sample vials, positioning of vial in the sample well, meter calibration, handling of meter, and others, have to be taken into consideration. Please see Section 5.1: Vials – Handling, Cleaning and Care on page 16 and Section 9: ADDENDUM 2: Guide to Good Measurement Technique on page 21 for more information. 856
Instruction Manual TN-100/ T-100
11 3.2.1 Preparation of Sample Vial
1. Grab liquid with the plastic bottle provided.
2. Obtain a clean and dry sample vial (Figure 7).
3. Take care to handle the sample vial by the top.
4. Rinse the vial with approximately 10 ml of the sample water, capping the vial with the black screw cap and
gently inverting it several times. Discard the used sample and repeat the rinsing procedure two more times.
5. Fill the rinsed vial with the remaining portion
(approximately 10 ml) of the grab sample up to the
mark indicated in the vial. Cap the vial with the
supplied black screw cap.
6. Wipe the vial with the soft, lint-free cloth supplied. Ensure that the outside of the vial is dry, clean and free from smudges.
7. Apply a thin film of silicone oil (supplied) on the sample vial (see Figure 9). Wipe with a soft cloth to obtain an even distribution over the entire vial’s surface.
NOTES:
1. The purpose of oiling the vial is to fill small
scratches and to mask the imperfection in the
glass.
2. Do not apply large quantity of oil as this may
collect dirt and dust.
8. You are now ready to place the vial into the meter for measurement.
Figure 9: Apply a thin film of silicone oil
Figure 7:
Sample Vial
857
Instruction Manual TN-100/ T-100
12 3.2.2 Measurement Procedure
1. Place TN-100/ T-100 turbidimeter on a flat and level surface.
2. Place the sample vial inside the sample well and align the vial’s mark with the meter’s index mark. See below.
Align index mark on
the sample vial with
the index mark on
the TN-100/ T-100
turbidimeter
IMPORTANT:
Place meter on a flat
and level surface.
DO NOT hold it on
hands while operating
the meter. It may lead to
inaccurate readings
Figure 10: Align sample vial's mark with meter's index mark
3. Push the vial in until it is fully snapped
in.
4. Turn on the meter by pressing the
ON/OFF key.
5. After the power-sup sequence, the
display blinks [--Rd--] for about 12
seconds. See Figure 11.
6. A value will appear. Note the reading.
7. If necessary, please the second sample
vial into the sample well. Remember to
align the vial’s mark with the meter’s
index mark.
8. Press READ/ENTER key. The display
blinks [-- Rd --] and a value will appear.
Note the reading.
9. Repeat steps 2 through 8 for all of your
samples.
Flashes about 10
times
SAMPLE
Unknown
NTU
Place vial
into the
sample well
NTU
READ
ENTER
Measurement mode can start from
either situation:
1. [STbY] after calibration;
2. After powering up the meter
Figure 11: Reading turbidity
value
858
Instruction Manual TN-100/ T-100
13 NOTE:
1. NEVER pour liquid directly into the sample well of
the instrument. Always use a vial. The instrument
will only accurately measure the turbidity of a
sample when vials sealed with the black caps are
used. The black cap serves as both seal and a
light shield.
2. NEVER attempt to clean the sample well. The
optics may be damaged.
3. The instrument will automatically power off 20
minutes after the last key press for battery
conservation.
3.3 Single-Shot or Continuous Measurement
You can use TN-100/ T-100 turbidimeter to take a single reading or perform continuous measurement. The latter is only used for indexing the vials. See Section 8.5 - Indexing a Vial on page 20 for more information.
For single-shot measurement:
1. Make sure the meter is sitting on a flat
and level surface and is in measurement
mode. The display shows the last
measured value or [STbY] after exiting
calibration mode.
2. Place sample vial in the sample well.
3. Press READ/ENTER key and release
immediately (<0.3 seconds). See Figure
12. 4. The display will blink [--Rd--] for 10 times
or more and then display the measured
value.
Press key and release
immediately
SAMPLE
Unknown
NTU Place vial
into the
sample well
NTU
READ
ENTER
Flashes about 10
times
Figure 12: Single-shot measurement
859
Instruction Manual TN-100/ T-100
14 For continuous measurement:
1. Make sure the meter is sitting on a flat and level surface and is in measurement mode. The display shows the last measured value or [STbY].
2. Place the sample vial in the sample well.
3. Press READ/ENTER key and hold. See Figure 13.
4. Wait for the reading to stabilize before rotating the sample vial.
NOTE:
During continuous measurement, the display is
updated every 2 seconds. The displayed reading
may not be the actual turbidity value. For accurate
measurement, use single-shot measurement.
5. You can rotate the sample vial for
indexing purpose. See Section 8.5 -
Indexing a Vial on page 20 for more
information.
6. Once you release the READ/ENTER
key, the meter will automatically
perform a single-shot measurement.
NOTES:
1. After a measurement is completed and the
display is updated, a 4-second recovery time
occurs before the meter can perform another
function. If any key is pressed during the recovery
time, the meter will perform the corresponding
action at the end of the recovery period.
2. When performing a measurement, if the meter
detects stray light exceeding the amount
equivalent to 0.02 NTU in the low range, the
measurement is immediately aborted and an
error message [ERR 8] is displayed. Ensure the
vial sits properly into the sample well. Press the
ENTER/READ key to re-do the measurement.
SAMPLE
Unknown
NTU Place vial
into the
sample well
Press and hold
NTU
READ
ENTER
You can turn
the vial for
indexing
Figure 13: Continuous
measurement
860
Instruction Manual TN-100/ T-100
15 4 TROUBLESHOOTING GUIDE
The TN-100/ T-100 turbidimeter routinely performs self-diagnostics, and will automatically generate messages to provide you with specific diagnostic information. These messages are for your use and do not indicate a reduction in the performance of the instrument or a failure of any component in the instrument, unless otherwise stated in this list.
LCD
Message
Description Correction Actions
ERR 1 Calibration Error. The meter is
unable to recognize the 800 NTU
Calibration Standard.
Make sure you use the correct
800 NTU calibration standard. *
ERR 2 Calibration Error. The meter is
unable to recognize the 100 NTU
Calibration Standard.
Make sure you use the correct
100 NTU calibration standard. *
ERR 3 Calibration Error. The meter is
unable to recognize the 20.0 NTU
Calibration Standard.
Make sure you use the correct
20.0 NTU calibration standard. *
ERR 4 Calibration Error. The meter is
unable to recognize the 0.02 NTU
Calibration Standard.
Make sure you use the correct
0.02 NTU calibration standard. *
ERR 5 Calibration Error. There is not
sufficient signal to achieve the
appropriate resolution in the 0-
1000NTU range.
Re-do calibration with all 4
standards provided. *
ERR 6 General Calibration Failure. There
is not sufficient signal to achieve
the appropriate resolution in the 0-
100NTU range.
Re-do calibration with all 4
standards provided. *
ERR 7 General Calibration Failure. There
is not sufficient signal to achieve
the appropriate resolution in the 0-
20 NTU range.
Re-do calibration with all 4
standards provided. *
ERR 8 Excessive stray light detected. Make sure the vial is fully snapped in the sample well.
ERR 9 Lamp Failure. Return unit.
Or When Turbidity value is above the
measurement range(>1000NTU)
Dilute sample. See Section 9.7
on page 23.
Low battery indication. The
batteries need to be replaced.
Replace batteries.
* If an error message appears, take the
appropriate corrective action and re-do the
desired procedure. If the problem persists,
contact Eutech Instruments or your dealer.
See Sections on Warranty and Return of Items on page 24. 861
Instruction Manual TN-100/ T-100
16 5 ROUTINE MAINTENANCE
The supplied carrying case is optimal for protecting the instrument. If you do not plan on leaving the instrument in the supplied carrying case, when not in use, ensure that the instrument has been turned off and that a clean sample vial fitted with a black cap has been placed in the sample well.
This will ensure that a minimal amount of dust and/or debris will be able to settle on the optics of the instrument.
5.1 Vials – Handling, Cleaning and Care
Proper measurement of the turbidity of a sample requires the use of a vial that is free of marks, smudges, scratches and any bacterial growth.
Therefore, sample vials must be handled with absolute care to avoid contamination or damage, which might change the optical characteristics of the glass. Scratches, fingerprints, and water droplets on the sample vial or inside the sample well can cause stray light interference leading to inaccurate readings.
Cleaning the vial is accomplished by washing the interior and exterior of the vial in a detergent solution. Once cleaned, the vial should be rinsed thoroughly 8 to 10 times with clean distilled water to eliminate the possibility of detergent buildup and streaking.
Vials can also be acid washed periodically and coated with a special silicone oil to fill small scratches and mask the imperfections in the glass.
Since the silicone oil required for this application should have the same refractive characteristics as glass, it is recommended that the oil be obtained from us. Care should be taken not to apply excessive oil that could attract dirt or contaminate the sample well of the meter. Once the oil has been applied to the vial, the excess oil should be removed with a lintfree cloth. The result should be a sample vial surface with a dry appearance, but with all imperfections filled with oil.
Sample vials should always be handled from the top or by the cap to avoid fingerprints or smudges. After a vial has been filled with a sample and capped, the outside surface should be wiped with a clean, lint-free absorbent cloth until it is dry. Cleaned and dried vials should be stored with the black caps on. The vials can be stored in the carrying case.
During normal operation you may use any typical glass cleaner along with a lint free cloth or tissue (Kimwipes®), to clean the outside of the vials.
Condensation may appear on the vial when your sample is very cold and the relative air humidity is high. When this happens, the turbidity that you read may be higher than the actual turbidity due to the light scattered by the condensate on the vial. If you find yourself in this circumstance, you can alleviate the problem by either coating the vial with an anti-fogging agent, or by running warm water over the vial for a short period of time to warm the sample prior to measurement.
862
Instruction Manual TN-100/ T-100
17 6 ACCESSORIES
The items shown below are recommended accessories and replacement parts for the instrument.
Item Description Eutech
Instruments
Order Code.
Oakton
Instruments
Order Code.
Waterproof TN-100/ T-100 portable
turbidimeter with set of 4 calibration
standards (800, 100, 20.0 & 0.02 NTU),
set of 3 sample vials, lint-free cloth,
silicone oil, batteries – all in a rugged
carrying case.
EC-TN100 35635-00
Calibration Set for normal operation
(includes 800, 100, 20.0 & 0.02 NTU
Standards)
ECTN100CALKT 35635-50
Sample Vials – pack of 3 vials ECTN100CUVKT 35653-55
Silicone Oil – 10ml ECSILICONEOIL ~
To order any accessory or replacement part, please contact your nearest distributor or Eutech Instruments/ Oakton Instruments.
863
Instruction Manual TN-100/ T-100
18 7 SPECIFICATIONS
MODEL NO. TN-100/ T-100
Measurement Method ISO 7027 compliant nephelometric method (90°) Measurement Range 0 to 1000 NTU
Automatic Range Selection 0.01 – 19.99 NTU
20.0 – 99.9 NTU
100 – 1000 NTU
Resolution 0.01 NTU (0 – 19.99 NTU)
0.1 NTU (20 – 99.9 NTU)
1 NTU (100 – 1000 NU)
Accuracy ±2% of reading for 0 to 500 NTU;
±3% of reading for 501 to 1000 NTU.
Repeatability ± 0.01 NTU or ± 1% of reading, whichever is greater with gel samples
Response Time < 6 seconds for full step change
Calibration Standards 0.02 NTU; 20 NTU; 100 NTU; 800 NTU Standardization EPA-approved polymer-based primary standards Light Source Infrared-emitting diode (850 nm wavelength) Light Source Life > 1,000,000 tests
Detector Silicon photovoltaic
Stray Light < 0.02 NTU
Display 4-digit 14-segments customized liquid crystal display with annunciators
Sample Cells Borosilicate glass with screw caps, fill line and indexing mark.
51 (H) x 25 (Dia) mm ( 2 x 1 in)
Sample Volume Required 10 ml (0.33 oz)
Operating Temperature
Range
0°C to 50°C (32°F to 122°F)
Sample Temperature Range 0°C to 50°C (32°F to 122°F)
Operating Humidity Range 0-90% RH, non-condensing at 30°C (86°F) Power Supply 4 x “AAA” Alkaline Batteries (> 1200 readings) Enclosure Type & Rating: ABS Plastic / IP67 rated
Insulation Rating Pollution Degree 2
Weight: Meter: 200 g (7 oz)
Meter with case: 1.25 kg (2.75 lb)
Dimensions Meter: 6.8 (W) x 15.5 (L) x 4.6 (H) cm;
(2.7 x 6.1 x 1.8 in)
Meter with Case: 16 (W) x 35 (L) x 12 (H) cm;
(6.3 x 13.8 x 4.7 in)
864
Instruction Manual TN-100/ T-100
19 8 ADDENDUM 1: TURBIDITY
8.1 Definition
Turbidity is defined as an “expression of the optical property that causes light to be scattered and absorbed rather than transmitted in straight lines through the sample.”
1 That is, turbidity is the measure of relative sample
clarity, not colour.
Water with cloudy or opaque appearance will have high turbidity, while water that is clear or translucent will have low turbidity. High turbidity value is caused by particles such as slit, clay, microorganisms, and organic matter. By definition, turbidity is not a direct measure of these particles but rather a measure of how these particles scatter light.
8.2 Why Is It Important?
For drinking water application, a turbidity value may give an indication of presence of bacteria, pathogens, or particles that can shelter harmful organisms from disinfection process. Therefore, turbidity measurement is particularly useful for water treatment plants to ensure cleanliness.
In industrial processes, turbidity can be part of quality control measure to ensure efficiency in treatment or manufacturing process.
8.3 Measurement Principle
There are two internationally accepted standard specifications for turbidity measurement. These are the international standard ISO 7027 and the US EPA method 180.1.
Basically the ISO 7027 is a more stringent standard and requires the use of a monochromatic light source. It also governs the design of a turbidimeter in the following areas: (1) Light source’s wavelength; (2) Light sources’ spectral bandwidth; (3) Measuring angle; (4) Aperture angle in water sample; (5) Distance traversed by incident light and scattered light within the sample; (6) Calibration standard.
The TN-100/ T-100 turbidimeter follows the ISO 7027 standard whose specification allows for greater reproducibility of the measured values and greater agreement between other measuring instruments.
1 Provided by “Standard Methods for the Examination of Water and Wastewater, APHA, AWWA and WPCF, 16th Edition, 1985.
865
Instruction Manual TN-100/ T-100
20 Figure 14 shows the waterproof TN-100/ T-100 turbidimeter basic optical system. It includes a light source and a detector to monitor the light scattered at 90° with respect to the incident beam.
90°
Lens Glass Sample Vial
Transmitted
Light
Scattered Light
Lamp
Figure 14: Basic Nephelometric arrangement for turbidity measurements
8.4 Nephelometric Turbidity Units (NTU)
Nephelometric Turbidity Units (NTU): Unit of measure used when relating the light scattered by a liquid media to the light scattered by a known concentration of a standard solution. This unit of measure is recognized as a measure of the optical clarity of an aqueous sample. NTU is the accepted unit of measurement for turbidity.
Another unit commonly used to measure turbidity is Formazin Turbidity Unit (FTU). The two units of measure of turbidity are equivalent: 1 NTU = 1 FTU.
8.5 Indexing a Vial
The United States Environmental Protection Agency (US EPA) recommends that vials used for turbidimeter calibration or sample measurement be indexed.
To index a sample vial, slowly rotate the vial throughout one complete revolution (360°). While rotating the sample vial, observe the display and locate the position that the vial is in which provides the lowest turbidity reading. This position is the indexed position of the vial.
Mark this position on the vial (not on the cap) against the mark on the meter.
After indexing a vial, make sure the vial will always be placed inside the sample well in the indexed position.
866
Instruction Manual TN-100/ T-100
21 9 ADDENDUM 2: GUIDE TO GOOD MEASUREMENT
TECHNIQUE
Turbidity is a very complex analytical measurement which can be affected by many factors. Some are inherent in the instrument’s design such as angle of detection, light beam aperture, incident beam wavelength and colour sensitivity of the photocell.
However, there are other factors such as stray light, air bubbles and care of vial, which can be prevented through proper care of equipment and accessories, and in the operating procedure for measurement. Here are some points you may want to note:
9.1 Maintain sample vials in good condition
Sample vials must be meticulously clean and free from significant scratches. It should be treated on the outside with a thin coat of silicone oil. This is to mask minor imperfections and scratches that may contribute to stray light. Sample vials should be handled only by the top to avoid dirt accumulation (or deposits) and fingerprints that might interfere with the light path.
More information is found in Section 5.1 - Vials – Handling, Cleaning and Care on page 16.
9.2 Match Sample Vials
Best accuracy and repeatability of turbidity measurement are achieved using a single, indexed vial. However, for more convenience, different vials can be used for measurement provided their readings with the same solution are matched. That is, the meter gives identical readings or within the specified repeatability and accuracy of the meter.
Select a few vials. After the sample vials are cleaned, fill them with ultralow turbidity water. Allow the sample vials to stand and for air bubbles to rise. Polish sample vials with silicone oil and take turbidity measurement at several points while rotating it in the sample well. Find the position where turbidity reading is the lowest and index it for each vial. Whenever these sample vials are used, use the indexed mark to position each vial into the sample well. Choose those vials that match the readings.
NOTE:
Not all vials can be matched because of some
manufacturing variations.
9.3 Degassing
Air or other trapped gases should be removed before measurement. 867
Instruction Manual TN-100/ T-100
22 Degassing is recommended even if no bubbles are visible. There are three methods commonly used for degassing:
Addition of a surfactant: This involves adding a surfactant to the water samples to lower the surface tension of the water, thereby releasing trapped gasses.
Application of a partial vacuum: Partial vacuum can be created by using simple syringe or vacuum pump. (This is only
recommended for ultra-low turbidity measurement).
Use of an ultrasonic bath: This may be effective in severe conditions or in viscous samples, but not recommended for ultra-low measurements.
Each of the method above has its own advantages and disadvantages.
For instance, under certain sample conditions, the use of vacuum pump or ultrasonic bath may actually increase the presence of gas bubbles.
9.4 Timeliness of Sample
Samples should be measured immediately to prevent changes in particle characteristics due to temperature and settling. Temperature can affect particles by changing their behavior or creating new particles if precipitates are formed. Dilution water may dissolve particles or change their characteristics. It is recommended to take samples only when the turbidimeter is ready to be operated. Samples should not be drawn and allowed to sit while the instrument warms up or is being readied.
9.5 Other Important Sampling Techniques
1. Samples should not be violently shaken or agitated as particles can be broken apart or air may be entrapped into the fluid. Gentle agitation such as swirling the sample vial is advisable to reduce particle settling.
2. Sample vials should be used only with the instruments for which they were intended. Do not mix and match.
3. Perform a visual observation of the sample vial every time a measurement is made. Ensure that there are no visible bubbles in the sample and the vial is clean and free of scratches.
4. Samples entering the turbidimeter should be at the same temperature as the process flow samples. Changes in temperature can cause precipitation of soluble compounds and affect readings.
5. Sample vials should be evaluated with a low turbidity water (after cleaning) to determine if cells remain matched. If the evaluation determines that a cell is corrupted, discard the vial. It is recommended to conduct this evaluation weekly.
6. When in doubt or question about whether a sample vial is too scratched or stained, throw it away.
868
Instruction Manual TN-100/ T-100
23 9.6 Calibration
1. Do not open the vials with calibration standards.
2. Check that the standards have not expired.
3. Make sure the calibration vials are free of dust, smudges and scratches before use.
4. Conduct the calibration in the same manner each time. Variations in how calibration is performed could yield inaccurate measurements.
5. It is very important that the user(s) who perform calibration have been trained to do so. Creating a Standard Operating Procedure (SOP) for the user(s) to read, learn, and practice may help to ensure accuracy.
9.7 Dilution
This dilution procedure is necessary only when your turbidity measurement is above 1000 NTU.
1. To measure the turbidity above 1000 NTU, dilute the sample with turbidity-free water.
2. Turbidity-free water can be obtained by filtering deionized water through a < 0.2µm filter membrane with precision-sized pores.
3. Measure the volume of the sample before dilution and record the value in ml (Vs).
4. Take a known volume (Vd) of dilution water and add it to the sample.
5. Pour 10 ml of the diluted sample in a clean vial and measure the turbidity of the diluted sample. Record this value in NTU (Td).
6. Calculate the true turbidity (T) of the original sample - in NTU - using the following formula:
T = Td * (Vs + Vd) / Vs
Example:
Dilute 20 ml of the original sample (whose turbidity is above 1000NTU) with 50 ml of dilution water.
Measure the turbidity of the diluted sample.
If the reading is 300 NTU, the turbidity of the original sample is 1050 NTU. (In this case: Td=300NTU, Vs=20ml, Vd=50ml, so T = 300 * (20+50) / 20 = 300*70/20 = 21000/20 = 1050) 869
Instruction Manual TN-100/ T-100
24 10 WARRANTY
The TN-100/ T-100 meter is supplied with a 2-year warranty from manufacturing defects and calibration standards for 6 months.
If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please return – freight pre-paid – and correction will be made without charge. Eutech Instruments/ Oakton Instruments will determine if the product problem is due to deviations or customer misuse.
Out of warranty products will be repaired on a charged basis.
Exclusions
The warranty on your instrument shall not apply to defects resulting from:
• Improper or inadequate maintenance by customer
• Unauthorized modification or misuse
• Operation outside of the environment specifications of the products Waterproof Seal: Opening the instrument enclosure (excluding the battery compartment) may void the warranty.
11 RETURN OF ITEMS
Authorization must be obtained from our Customer Service Department or authorized distributor before returning items for any reason. A “Return Goods Authorization” (RGA) form is available through our Authorized Distributor. Please include data regarding the reason the items are to be returned. For your protection, items must be carefully packed to prevent damage in shipment and insured against possible damage or loss. Eutech Instruments/ Oakton Instruments will not be responsible for damage resulting from careless or insufficient packing. A restocking charge will be made on all unauthorized returns.
NOTE:
Eutech Instruments Pte Ltd/ Oakton Instruments
reserve the right to make improvements in design,
construction, and appearance of products without
notice.
870
Instruction Manual TN-100/ T-100
25 CALIBRATION CHECKLIST
Month ____________ Year ___________
Date Initials Value Standard Comments
871
For more information on Eutech Instruments/ Oakton Instruments’ products, contact your nearest distributor or visit our website listed below:
Oakton Instruments
P.O Box 5136,
Vernon Hills, IL60061, USA
Tel: (1) 888-462-5866
Fax: (1) 847-247-2984
E-mail: [email protected]
Web-site:
www.4oakton.com
Eutech Instruments Pte Ltd
Blk 55, Ayer Rajah Crescent,
#04-16/24 Singapore 139949
Tel: (65) 6778 6876
Fax: (65) 6773 0836
E-mail:
[email protected]
Web-site: www.eutechinst.com
Distributed by:
872
Bijou Park Connector Trail 107 March 2025
CSMP Attachment 5: Supplemental Information
873
Bijou Park Connector Trail 108 March 2025
Section 8 References
Project Plans and Specifications No. [Insert Number] dated [insert date], prepared by [entity preparing plans and specifications]
State Water Resources Control Board (2009). Order 2009-0009-DWQ, NPDES General Permit No. CAS000002: National Pollutant Discharges Elimination System (NPDES) California General Permit for Storm Water Discharge Associated with Construction and Land Disturbing Activities. Available on-line at:
http://www.waterboards.ca.gov/water_issues/programs/stormwater/construction.shtml.
State Water Resources Control Board (2010). Order 2010-0014-DWQ, NPDES General Permit No. CAS000002: National Pollutant Discharges Elimination System (NPDES) California General Permit for Storm Water Discharge Associated with Construction and Land Disturbing Activities. Available on-line at:
http://www.waterboards.ca.gov/water_issues/programs/stormwater/construction.shtml.
State Water Resources Control Board (2012). Order 2012-0006-DWQ, NPDES General Permit No. CAS000002: National Pollutant Discharges Elimination System (NPDES) California General Permit for Storm Water Discharge Associated with Construction and Land Disturbing Activities. Available on-line at:
http://www.waterboards.ca.gov/water_issues/programs/stormwater/construction.shtml. [Include additional references as needed]
CASQA 2009, Stormwater BMP Handbook Portal: Construction, November 2009, www.casqa.org
874
Bijou Park Connector Trail 109 March 2025
Appendix A: Calculations
875
Bijou Park Connector Trail 111 March 2025
Appendix B: Site Maps
876
DRAINS TO
BIJOU CREEK
6275
6275 DRAINS TO
TROUT CREEK
CONTRACTOR'S
STAGING AREA
US1
US1
DS YARD
US YARD
US2
DS2
PROPOSED
TRAIL
SITE MAP
877
LOCATION MAP VICINITY MAP CITY OF SOUTH LAKE TAHOE PWC-20-30150037 OWNER CITY OF SOUTH LAKE TAHOE 1901 LISA MALOFF WAY SOUTH LAKE TAHOE (530) 542-6034 SUBMITTED BY: EASTERN SIERRA ENGINEERING, P.C. P.O. BOX 1819 ZEPHYR COVE, NV 89448 (775) 588-7178 JENNIFER G. ROMAN, P.E. DATE EASTERN SIERRA ENGINEERING REVIEWED BY: ANUSH NEJAD, P.E. DATE DIRECTOR OF PUBLIC WORKS BIJOU PARK CONNECTOR TRAIL EL DORADO COUNTY JUDICIAL CENTER DISC GOLF COURSEDOG PARK SKATE PARK BIKE PARK RESTROOMS MAIN
ENTRANCE
PARK VOLLEYBALL COURTS USFS SUPERVISOR'S OFFICE BIJOU COMMUNITY PARK LAKE TAHOE COMMUNITY COLLEGE DISC GOLF COURSE
COLLEGE DR
AL TAHOE BLVD
JOHNSON BLVD
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TITLE SHEET
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR G1 29 SHEET INDEX SHEET # DESCRIPTION
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
878
REVISIONS Date No. BY APPD SHEET No. OF
STAMP 1234
TITLE
PROJECT 5 Designed: Drawn By: Approved By: Job No: Scale: Date:
NOTES LEGEND AND ABBREVIATIONS
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR G2 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig. R DATE: 4/18/25 SUBMITTAL PERCENT 100 879
Δ
D
D
D
D SEE SHEET C15 FOR TRAIL RAMPS
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 1+00-3+00
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C1 29 PROFILE PLAN
MATCH LINE
SEE SHEET C2
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
MATCH LINE
SEE SHEET C2
880
D SEE SHEET C15 FOR TRAIL RAMPS
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 3+00-5+25
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C2 29 PROFILE PLAN
MATCH LINE
SEE SHEET C1
SEE SHEET MATCH LINEC3
MATCH LINE
SEE SHEET C1
MATCH LINE
SEE SHEET C3
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
881
D
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 5+25-7+50
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C3 29 PROFILE PLAN
MATCH LINE
SEE SHEET C2
MATCH LINE
SEE SHEET C4
MATCH LINE
SEE SHEET C2
MATCH LINE
SEE SHEET C4
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
882
MATCH LINE
SEE SHEET C5
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 7+50-9+50
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C4 29 PROFILE PLAN
MATCH LINE
SEE SHEET C3
MATCH LINE
SEE SHEET C5
MATCH LINE
SEE SHEET C3
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
883
MATCH LINE
SEE SHEET C6
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 9+50-11+50
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C5 29 PROFILE PLAN
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726
MATCH LINE
SEE SHEET C4
MATCH LINE
SEE SHEET C6
MATCH LINE
SEE SHEET C4
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
884
Δ L=224.70' CH=224.58'
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 11+50-13+75
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C6 29 PROFILE PLAN
MATCH LINE
SEE SHEET C5
MATCH LINE
SEE SHEET C7
MATCH LINE
SEE SHEET C5
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
MATCH LINE
SEE SHEET C7
885
Δ L=224.70' CH=224.58' SEE SHEET C15 FOR TRAIL RAMPS SEE SHEET C16 FOR AL TAHOE BLVD CROSSING
MATCH LINE
SEE SHEET C8
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 13+75-16+00
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C7 29 PROFILE PLAN
MATCH LINE
SEE SHEET C6
SEE SHEET
MATCH LINE
C8
MATCH LINE
SEE SHEET C6
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
886
MATCH LINE
SEE SHEET C7
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 16+00-17+75
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C8 29 PROFILE PLAN
SEE SHEET MATCH LINEC7
MATCH LINE
SEE SHEET C9
MATCH LINE
SEE SHEET C9
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
887
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 17+75-20+00
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C9 29 PROFILE PLAN
MATCH LINE
SEE SHEET C8
MATCH LINE
SEE SHEET C10
MATCH LINE
SEE SHEET C8
MATCH LINE
SEE SHEET C10
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
888
SEE SHEET C16 FOR RETURN TRAIL CONNECTION
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 20+00-22+25
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C10 29 PROFILE PLAN
MATCH LINE
SEE SHEET C9
MATCH LINE
SEE SHEET C11
MATCH LINE
SEE SHEET C9
MATCH LINE
SEE SHEET C11
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
889
MATCH LINE
SEE SHEET C10
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 22+25-24+25
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C11 29 PROFILE PLAN
MATCH LINE
SEE SHEET C10
MATCH LINE
SEE SHEET C12
MATCH LINE
SEE SHEET C12
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100 INSET
³30"
890
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL PLAN & PROFILE
STA 24+25-26+58
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C12 29 PROFILE PLAN
MATCH LINE
SEE SHEET C11 MATCH LINE
SEE SHEET C11
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
³30"
891
TRAIL SECTIONS
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL SECTIONS
STA 2+00-21+00 4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE RWJAH JGR C13 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
892
TRAIL SECTIONS
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
TRAIL SECTIONS
STA 22+00-26+58 4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE RWJAH JGR C14 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
893
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
RAMP DETAIL SHEET-1
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C15 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100 BIJOU PARK EXIT DRIVEWAY RAMPS BIJOU PARK ENTRANCE DRIVEWAY RAMPS 894
AL TAHOE BLVD.
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
RAMP DETAIL SHEET-2
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR C16 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100 AL TAHOE BLVD CROSSING RETURN TRAIL CONNECTION
³30"
895
18" 3" 60" 84" 1" TYPE A BACK OF CURB 48" 2' MIN SHARED USE PATH 1' SIDEWALK TYPE B BACK OF SHARED USED PATH/SIDEWALK TOP VIEW SEE NOTE 2 2" SEE NOTE 1 4" 6" 2' 05/01/09 STANDARD DRAWING ENGINEERING DEPARTMENT City of South Lake Tahoe APPROVED BY: CITY ENGINEER STREET NAME & STOP SIGNSD21 1/2" 1/2" 3" 2' 4' D-1 1 ” ” ” ”
“ ” STOP SIGN INSTALLATION PROJECT SIGN PATH/TRAIL & DRIVEWAY SIGN LOCATION MARKER & SNOWPOLE NOT TO SCALE 308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
DETAILS
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR D1 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
896
1'-4" SEE PLANS AND GRADING PLANS FOR RAMP DIMENSIONS 2' SEE PLANS AND GRADING PLANS FOR RAMP DIMENSIONS 3' SEE PLANS AND GRADING PLANS FOR RAMP DIMENSIONS SECTION A-A A
A
B
B PLAN 1'-4"
10:1
3:1 12" CONCRETE VALLEY GUTTER, SEE PLANS AND DETAIL
3D-2
3D-3 PEDESTRIAN LANDING INFILTRATION TRENCH 1.5% MAX VALLEY GUTTER BMP CALCULATION SPREADSHEET MULTI USE TRAIL DETAILS SECTION B-B TYPE 1TYPE 2 TYPE 3 3D2 TYPE 4
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
DETAILS
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR D2 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
897
9-5
8" 16" 10" VERTICAL BATTERED CURB & GUTTER 10" 16" 6" 12" 3 8" 3"6" DISTANCE VARIES ROW TO CENTERLINE FOG SEAL 2' BEYOND SAWCUT 4' MIN TIE-IN PAVEMENT DISTANCE VARIES - TBC TO CL 05/01/09 NOT TO SCALE STANDARD DRAWING ENGINEERING DEPARTMENT City of South Lake Tahoe APPROVED BY: CITY ENGINEERCURB & GUTTER VERTICAL BATTERED & ROLLED SD04 2" 7-5/8" TYP CURB & GUTTER VERTICAL BATTERED & ROLLED6" TEMPORARY CONTROLS CULVERT WEIGHTED FIBER ROLL FIBER ROLL DI PROTECTION STAKED FIBER ROLL NORMAL VEGETATION PROTECTION/ CONSTRUCTION LIMIT FENCING INLET PROTECTION PLAN VIEW SECTION A-A SECTION B-B OUTLET PROTECTION PLAN VIEW ROLLED CURB & GUTTER WITH TIE-IN PAVEMENT B
B MANHOLE ADJUSTMENT LARGE TREE PROTECTION CULVERT TRENCH REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
DETAILS
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR D3 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
898
SEDIMENT TRAP PLAN TYPE B1 CMP SEDIMENT TRAP
REVISIONS Date No. BY APPD SHEET No. OF
STAMP 1234
TITLE
PROJECT 5 Designed: Drawn By: Approved By: Job No: Scale: Date:
DETAILS
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR D4 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig. R DATE: 4/18/25 SUBMITTAL PERCENT 100 899
Δ AL TAHOE BLVD
JOHNSON BLVD
SP
SP
SP
SP
SP AL TAHOE BLVD
SP
SP
SP
SP
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
SIGNAGE & STRIPING
STA 1+00-5+25
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR S1 29 PLAN
MATCH LINE
SEE SHEET BELOW
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
SEE SHEET MATCH LINE
S2 PLAN
SEE SHEET ABOVE
MATCH LINE
900
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
SIGNAGE & STRIPING
STA 5+25-9+50
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR S2 29 PLAN PLAN
SEE SHEET MATCH LINE
S2
MATCH LINE
SEE SHEET BELOW
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
MATCH LINE
SEE SHEET ABOVE
MATCH LINE
SEE SHEET S3
901
SP
SP
SP
SP
SP
SP
SP
Δ L=224.70' CH=224.58'
SP
SP
SP
SP
SP
SP
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
SIGNAGE & STRIPING
STA 9+50-13+50
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR S3 29 PLAN PLAN
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726
MATCH LINE
SEE SHEET S2
MATCH LINE
SEE SHEET BELOW
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100
MATCH LINE
SEE SHEET ABOVE
MATCH LINE
SEE SHEET S4
902
Δ L=224.70' CH=224.58'
SP
SP
SP
SP SEE SHEET S7 FOR AL TAHOE BLVD CROSSING
SP
SP
SP
SP
SP
SP SEE SHEET S7 FOR AL TAHOE BLVD CROSSING
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
SIGNAGE & STRIPING
STA 13+50-17+75
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR S4 29 PLAN
MATCH LINE
SEE SHEET S3
MATCH LINE
SEE SHEET BELOW
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT PLAN
100
MATCH LINE
SEE SHEET ABOVE
SEE SHEET
MATCH LINE
S5
903
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP SP
SP
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
SIGNAGE & STRIPING
STA 17+75-22+25
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR S5 29 PLAN
SEE SHEET
MATCH LINE
S4
MATCH LINE
SEE SHEET BELOW
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100 PLAN
MATCH LINE
SEE SHEET ABOVE
MATCH LINE
SEE SHEET S6
904
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
SIGNAGE & STRIPING
STA 22+25-26+46
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR S6 29 PLAN
MATCH LINE
SEE SHEET S5
MATCH LINE
SEE SHEET BELOW
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100 PLAN
MATCH LINE
SEE SHEET ABOVE
905
AL TAHOE BLVD.
REVISIONS Date No. BY APPD SHEET No. OF
STAMP
1 2
3 4
TITLE
PROJECT
5 Designed: Drawn By: Approved By: Job No: Scale: Date:
AL TAHOE CROSSING SIGNAGE & STRIPING
4/18/25 AS SHOWN 21240
SOUTH LAKE TAHOE CALIFORNIA
BIJOU PARK CONNECTOR TRAIL
SOUTH LAKE TAHOE
RWJAH JGR S7 29
308 DORLA CT, SUITE 201 MAIN: (775) 588-7178
ZEPHYR COVE , NV 89448 FAX: (775) 588-1726 Know what'sbelow. Callbefore you dig.
R
DATE: 4/18/25 SUBMITTAL PERCENT
100 AL TAHOE BLVD CONNECTION RAMP STRIPING AND SIGNAGE
906
Bijou Park Connector Trail 119 March 2025
Appendix C: Permit Registration Documents
907
Bijou Park Connector Trail 120 March 2025
Permit Registration Documents included in this Appendix
Y/N Permit Registration Document
Y Notice of Intent
N Risk Assessment (Not Applicable)
Y Certification
N Post Construction Water Balance
N Copy of Annual Fee Receipt
N ATS Design Documents
Y Site Map, see Appendix B
908
Bijou Park Connector Trail 121 March 2025
Appendix D: SWPPP Amendment Certifications
909
Bijou Park Connector Trail 122 March 2025
SWPPP Amendment No.
Project Name:
Project Number:
Qualified SWPPP Developer’s Certification of the
Stormwater Pollution Prevention Plan Amendment
“This Stormwater Pollution Prevention Plan and attachments were prepared under my direction to meet the requirements of the California Construction General Permit (SWRCB Order No. 2009-009-DWQ as amended by 2010-0014-DWQ and 2012-00xx-DWQ). I certify that I am a Qualified SWPPP Developer in good standing as of the date signed below.”
QSD’s Signature Date
QSD Name QSD Certificate Number
Title and Affiliation Telephone
Address Email
910
Bijou Park Connector Trail 123 March 2025
Appendix E: Submitted Changes to PRDs
911
Bijou Park Connector Trail 124 March 2025
Log of Updated PRDs
The General Permit allows for the reduction or increase of the total acreage covered under the General Permit when a portion of the project is complete and/or conditions for termination of coverage have been met; when ownership of a portion of the project is purchased by a different entity; or when new acreage is added to the project.
Modified PRDs shall be filed electronically within 30 days of a reduction or increase in total disturbed area if a change in permit covered acreage is to be sought. The SWPPP shall be modified appropriately, with revisions and amendments recorded in Appendix C. Updated PRDs submitted electronically via SMARTS can be found in this Appendix.
This appendix includes all of the following updated PRDs (check all that apply):
Revised Notice of Intent (NOI);
Revised Site Map;
Revised Risk Assessment;
New landowner’s information (name, address, phone number, email address); and New signed certification statement.
Legally Responsible Person [if organization]
Signature of [Authorized Representative of] Legally
Responsible Person or Approved Signatory
Date
Name of [Authorized Representative of] Legally
Responsible Person or Approved Signatory
Telephone Number
912
Bijou Park Connector Trail 125 March 2025
Appendix F: Construction Schedule
Detailed construction schedule will be included by amendment after award of the contract and prior to the start of construction.
913
Bijou Park Connector Trail 126 March 2025
914
Bijou Park Connector Trail 127 March 2025
Appendix G: Construction Activities, Materials Used, and Associated Pollutants
915
Bijou Park Connector Trail 128 March 2025
Table G.1 Construction Activities and Associated Pollutants Phase Activity Associated Materials or
Pollutants Pollutant Category(1)
Grading and Land Development
Grading Soil Sediment
Equipment Maintenance Fluids Oil & Grease
Streets and Utilities Phase
Sawcutting Concrete Dust & Waste Gross Pollutants
Demolition Waste Gross Pollutants
Pipe Installation Soil Sediment
Disinfection Chlorinated Water Gross Pollutants
Vertical Construction Phase
Landscaping and Site Stabilization Phase
(1) Categories per CASQA BMP Handbook (i.e., Sediment, Nutrients, Bacteria and Viruses, Oil and Grease, Metals, Synthetic Organics, Pesticides, Gross Pollutants, and Vector Production)
916
Bijou Park Connector Trail 129 March 2025
Appendix H: CASQA Stormwater BMP Handbook Portal:
Construction Fact Sheets
917
918
919
920
921
922
923
924
925
926
927
928
929
Fiber Rolls SC-5
BMP Objectives
il Stabilization
diment Control
racking Control
ind Erosion Control
on-Storm Water Management
Caltrans Storm Water Quality Handbooks Section 4
Construction Site Best Management Practices Manual Fiber Rolls SC-5 March 1, 2003 1 of 6
Standard Symbol
So
Se
T
W
N
●
●
○
○
○
○ Materials and Waste Management
Definition and
Purpose
A fiber roll consists of wood excelsior, rice or wheat straw, or coconut fibers that is rolled or bound into a tight tubular roll and placed on the toe and face of slopes to intercept runoff, reduce its flow velocity, release the runoff as sheet flow and provide removal of sediment from the runoff. Fiber rolls may also be used for inlet protection and as check dams under certain situations.
Appropriate
Applications
■ This BMP may be implemented on a project-by-project basis with other BMPs when determined necessary and feasible by the RE.
■ Along the toe, top, face, and at grade breaks of exposed and erodible slopes to shorten slope length and spread runoff as sheet flow.
■ Below the toe of exposed and erodible slopes.
■ Fiber rolls may be used as check dams in unlined ditches if approved by the Resident Engineer (RE) or the District Construction Storm Water Coordinator (refer to SC-4 “Check Dams”).
■ Fiber rolls may be used for drain inlet protection if approved by the RE or the District Construction Storm Water Coordinator (refer to SC-10 “Storm Drain Inlet Protection”).
■ Down-slope of exposed soil areas.
■ Around temporary stockpiles.
■ Along the perimeter of a project.
930
Fiber Rolls SC-5
Limitations ■ Runoff and erosion may occur if fiber roll is not adequately trenched in. ■ Fiber rolls at the toe of slopes greater than 1:5 may require the use of 500 mm (20” diameter) or installations achieving the same protection (i.e., stacked smaller diameter fiber rolls, etc.).
■ Fiber rolls may be used for drainage inlet protection if they can be properly anchored.
■ Difficult to move once saturated.
■ Fiber rolls could be transported by high flows if not properly staked and trenched in.
■ Fiber rolls have limited sediment capture zone.
■ Do not use fiber rolls on slopes subject to creep, slumping, or landslide.
Standards and
Specifications
Fiber Roll Materials
■ Fiber rolls shall be either:
(1) Prefabricated rolls.
(2) Rolled tubes of erosion control blanket.
Assembly of Field Rolled Fiber Roll
■ Roll length of erosion control blanket into a tube of minimum 200 mm (8 in) diameter.
■ Bind roll at each end and every 1.2 m (4 ft) along length of roll with jute-type twine.
Installation
■ Slope inclination of 1:4 or flatter: fiber rolls shall be placed on slopes 6.0 m apart.
■ Slope inclination of 1:4 to 1:2: fiber rolls shall be placed on slopes 4.5 m apart.
■ Slope inclination 1:2 or greater: fiber rolls shall be placed on slopes 3.0 m apart.
■ Stake fiber rolls into a 50 to 100 mm (2 to 4 in) trench.
Caltrans Storm Water Quality Handbooks Section 4
Construction Site Best Management Practices Manual Fiber Rolls SC-5 March 1, 2003 2 of 6
931
Fiber Rolls SC-5
■ Drive stakes at the end of each fiber roll and spaced 600 mm (2 ft) apart if Type 2 installation is used (refer to Page 4). Otherwise, space stakes 1.2 m (4 ft) maximum on center if installed as shown on Pages 5 and 6. ■ Use wood stakes with a nominal classification of 19 by 19 mm (3/4 by 3/4 in), and minimum length of 600 mm (24 in).
■ If more than one fiber roll is placed in a row, the rolls shall be overlapped; not abutted.
Removal
■ Fiber rolls are typically left in place.
■ If fiber rolls are removed, collect and dispose of sediment accumulation, and fill and compact holes, trenches, depressions or any other ground disturbance to blend with adjacent ground.
Maintenance and
Inspection
■ Repair or replace split, torn, unraveling, or slumping fiber rolls. ■ Inspect fiber rolls when rain is forecast. Perform maintenance as needed or as required by the RE.
■ Inspect fiber rolls following rainfall events and a least daily during prolonged rainfall. Perform maintenance as needed or as required by the RE. ■ Maintain fiber rolls to provide an adequate sediment holding capacity.
Sediment shall be removed when the sediment accumulation reaches three quarters (3/4) of the barrier height. Removed sediment shall be incorporated in the project at locations designated by the RE or disposed of outside the highway right-of-way in conformance with the Standard Specifications.
Caltrans Storm Water Quality Handbooks Section 4
Construction Site Best Management Practices Manual Fiber Rolls SC-5 March 1, 2003 3 of 6
932
Fiber Rolls SC-5
Caltrans Storm Water Quality Handbooks Section 4 Construction Site Best Management Practices Manual Fiber Rolls SC-5 933
March 1, 2003 4 of 6
Fiber Rolls SC-5
Vertical spacing
along face of the
slope varies
between 3m and 6 m
Caltrans Storm Water Quality Handbooks Section 4
Construction Site Best Management Practices Manual Fiber Rolls SC-5 March 1, 2003 5 of 6
934
Fiber Rolls SC-5
OPTIONAL ENTRENCHMENT DETAIL
N.T.S.
Caltrans Storm Water Quality Handbooks Section 4
Construction Site Best Management Practices Manual Fiber Rolls SC-5 March 1, 2003 6 of 6
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
Bijou Park Connector Trail 190 March 2025
Appendix I: BMP Inspection Form
1006
Bijou Park Connector Trail 191 March 2025
BMP INSPECTION REPORT
Date and Time of Inspection: Date Report Written:
Inspection Type:
(Circle one)
Daily
Complete Parts
I,II,III and VII
Pre-Storm
Complete Parts
I,II,III,IV and VII
During Rain Event
Complete Parts I, II,
III, V, and VII
Post-Storm
Complete Parts
I,II,III,VI and VII
Part I. General Information
Site Information
Construction Site Name:
Construction stage and
completed activities:
Approximate area
of site that is exposed:
Photos Taken:
(Circle one) Yes No
Photo Reference IDs:
Weather
Estimate storm beginning:
(date and time)
Estimate storm duration:
(hours)
Estimate time since last storm:
(days or hours)
Rain gauge reading and location:
(in)
Is a “Qualifying Event” predicted or did one occur (i.e., 0.5” rain with 48-hrs or greater between events)? (Y/N) If yes, summarize forecast:
Exemption Documentation (explanation required if inspection could not be conducted). Visual inspections are not required outside of business hours or during dangerous weather conditions such as flooding or electrical storms.
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Part II. BMP Observations. Describe deficiencies in Part III. 1007
Bijou Park Connector Trail 192 March 2025
Minimum BMPs for Risk Level _____ Sites
Failures or
other short
comings
(yes, no, N/A)
Action
Required
(yes/no)
Action
Implemented
(Date)
Good Housekeeping for Construction Materials
Inventory of products (excluding materials designed to be outdoors)
Stockpiled construction materials not actively in use are covered and bermed
All chemicals are stored in watertight containers with
appropriate secondary containment, or in a completely
enclosed storage shed
Construction materials are minimally exposed to precipitation BMPs preventing the off-site tracking of materials are
implemented and properly effective
Good Housekeeping for Waste Management
Wash/rinse water and materials are prevented from being disposed into the storm drain system
Portable toilets are contained to prevent discharges of waste Sanitation facilities are clean and with no apparent for leaks and spills
Equipment is in place to cover waste disposal containers at the end of business day and during rain events
Discharges from waste disposal containers are prevented from discharging to the storm drain system / receiving water Stockpiled waste material is securely protected from wind and rain if not actively in use
Procedures are in place for addressing hazardous and nonhazardous spills Appropriate spill response personnel are assigned and trained Equipment and materials for cleanup of spills is available onsite
Washout areas (e.g., concrete) are contained appropriately to prevent discharge or infiltration into the underlying soil Good Housekeeping for Vehicle Storage and Maintenance
Measures are in place to prevent oil, grease, or fuel from leaking into the ground, storm drains, or surface waters All equipment or vehicles are fueled, maintained, and stored in a designated area with appropriate BMPs
Vehicle and equipment leaks are cleaned immediately and disposed of properly
1008
Bijou Park Connector Trail 193 March 2025
Part II. BMP Observations Continued. Describe deficiencies in Part III.
Minimum BMPs for Risk Level _____ Sites
Adequately
designed,
implemented and
effective
(yes, no, N/A)
Action
Required
(yes/no)
Action
Implemented
(Date)
Good Housekeeping for Landscape Materials
Stockpiled landscape materials such as mulches and topsoil are contained and covered when not actively in use
Erodible landscape material has not been applied 2 days before a forecasted rain event or during an event
Erodible landscape materials are applied at quantities and rates in accordance with manufacturer recommendations
Bagged erodible landscape materials are stored on pallets and covered
Good Housekeeping for Air Deposition of Site Materials
Good housekeeping measures are implemented onsite to
control the air deposition of site materials and from site operations
Non-Stormwater Management
Non-Stormwater discharges are properly controlled
Vehicles are washed in a manner to prevent non-stormwater discharges to surface waters or drainage systems
Streets are cleaned in a manner to prevent unauthorized nonstormwater discharges to surface waters or drainage systems.
Erosion Controls
Wind erosion controls are effectively implemented
Effective soil cover is provided for disturbed areas inactive (i.e., not scheduled to be disturbed for 14 days) as well as finished slopes, open space, utility backfill, and completed lots
The use of plastic materials is limited in cases when a more sustainable, environmentally friendly alternative exists.
Sediment Controls
Perimeter controls are established and effective at controlling erosion and sediment discharges from the site
Entrances and exits are stabilized to control erosion and sediment discharges from the site
Sediment basins are properly maintained
Linear sediment control along toe of slope, face of slope an at grade breaks
Limit construction activity to and from site to entrances and exits that employ effective controls to prevent offsite tracking Ensure all storm, drain inlets and perimeter controls, runoff control BMPs and pollutants controls at entrances and exits are maintained and protected from activities the reduce their effectiveness
1009
Bijou Park Connector Trail 194 March 2025
Inspect all immediate access roads daily
Run-On and Run-Off Controls
Run-on to the site is effectively managed and directed away from all disturbed areas.
Other
Are the project SWPPP and BMP plan up to date, available on-site and being properly implemented?
Part III. Descriptions of BMP Deficiencies
Deficiency
Repairs Implemented:
Note - Repairs must begin within 72 hours of identification and, complete repairs as soon as possible.
Start Date Action
1. 2.
3. 4.
Part IV. Additional Pre-Storm Observations. Note the presence or absence of floating and suspended materials, sheen, discoloration, turbidity, odors, and source(s) of pollutants(s).
Yes, No, N/A
Do stormwater storage and containment areas have adequate freeboard? If no, complete Part III.
Are drainage areas free of spills, leaks, or uncontrolled pollutant sources? If no, complete Part VII and describe below.
Notes:
Are stormwater storage and containment areas free of leaks? If no, complete Parts III and/or VII and describe below.
Notes:
1010
Bijou Park Connector Trail 195 March 2025
Part V. Additional During Storm Observations. If BMPs cannot be inspected during inclement weather, list the results of visual inspections at all relevant outfalls, discharge points, and downstream locations. Note odors or visible sheen on the surface of discharges. Complete Part VII (Corrective Actions) as needed.
Outfall, Discharge Point, or Other Downstream Location
Location Description
Location Description
Location Description
Location Description
Location Description
Location Description
Location Description
Location Description
1011
Bijou Park Connector Trail 196 March 2025
Part VI. Additional Post-Storm Observations. Visually observe (inspect) stormwater discharges at all discharge locations within two business days (48 hours) after each qualifying rain event, and observe (inspect) the discharge of stored or contained stormwater that is derived from and discharged subsequent to a qualifying rain event producing precipitation of ½ inch or more at the time of discharge. Complete Part VII (Corrective Actions) as needed.
Discharge Location, Storage or
Containment Area
Visual Observation
Part VII. Additional Corrective Actions Required. Identify additional corrective actions not included with BMP Deficiencies (Part III) above. Note if SWPPP change is required.
Required Actions Implementation Date
1012
Bijou Park Connector Trail 197 March 2025
Appendix J: Project Specific Rain Event Action Plan
Template
1013
Bijou Park Connector Trail 198 March 2025
Rain Event Action Plan (REAP)
Date of REAP WDID Number: B
Date Rain Predicted to Occur: Predicted % chance of
rain:
Predicted Rain Event Triggered Actions
Below is a list of suggested actions and items to review for this project. Each active Trade should check all material storage areas, stockpiles, waste management areas, vehicle and equipment storage and maintenance, areas of active soil disturbance, and areas of active work to ensure the proper implementation of BMPs. Project-wide BMPs should be checked and crossreferenced to the BMP progress map.
Trade or Activity Suggested action(s) to perform / item(s) to review prior to rain event Information & Scheduling
Inform trade supervisors of predicted rain
Check scheduled activities and reschedule as needed
Alert erosion/sediment control provider
Alert sample collection contractor (if applicable)
Schedule staff for extended rain inspections
Check Erosion and Sediment Control (ESC) material stock Review BMP progress map
Other:___________________________________
________________________________________
________________________________________
Material storage areas
Material under cover or in sheds (ex: treated woods and metals) Perimeter control around stockpiles
Other:___________________________________
________________________________________
__________________________________
Waste management areas
Dumpsters closed
Drain holes plugged
Recycling bins covered
Sanitary stations bermed and protected from tipping
Other:___________________________________
________________________________________
________________________________________
Trade operations
Exterior operations shut down for event (e.g., no concrete pours or paving) Soil treatments (e.g., fertilizer) ceased within 24 hours of event Materials and equipment (e.g., tools) properly stored and covered Waste and debris disposed in covered dumpsters or removed from site Trenches and excavations protected
Perimeter controls around disturbed areas
Fueling and repair areas covered and bermed
Other:___________________________________
________________________________________
__________________________________
Site ESC BMPs
Adequate capacity in sediment basins and traps
Site perimeter controls in place
Catch basin and drop inlet protection in place and cleaned Temporary erosion controls deployed
Temporary perimeter controls deployed around disturbed areas and stockpiles Roads swept; site ingress and egress points stabilized Other:___________________________________
________________________________________
__________________________________
Concrete rinse out area
Adequate capacity for rain
Wash-out bins covered
Other:___________________________________
________________________________________
__________________________________
Spill and drips
All incident spills and drips, including paint, stucco, fuel, and oil cleaned Drip pans emptied
Other:___________________________________
________________________________________
__________________________________
1014
Bijou Park Connector Trail 199 March 2025
Continued on next page.
Other / Discussion /
Diagrams
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
Attach a printout of the weather forecast from the NOAA website to the REAP.
I certify under penalty of law that this Rain Event Action Plan (REAP) will be performed in accordance with the General Permit by me or under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.
______________________________________________________Date: __________________________ Qualified SWPPP Practitioner (Use ink please)
1015
Bijou Park Connector Trail 200 March 2025
Appendix K: Training Reporting Form
1016
Bijou Park Connector Trail 201 March 2025
Trained Contractor Personnel Log
Stormwater Management Training Log and Documentation
Project Name:
WDID #:
Stormwater Management Topic: (check as appropriate)
Erosion Control Sediment Control
Wind Erosion Control Tracking Control
Non-Stormwater Management Waste Management and Materials Pollution Control Stormwater Sampling
Specific Training Objective:
Location: Date: _
Instructor: Telephone:
Course Length (hours):
Attendee Roster (Attach additional forms if necessary)
Name Company Phone
As needed, add proof of external training (e.g., course completion certificates, credentials for QSP, QSD).
1017
Bijou Park Connector Trail 202 March 2025
Appendix L: Responsible Parties
1018
Bijou Park Connector Trail 203 March 2025
OPTIONAL
Authorization of Approved Signatories
Project Name:
WDID #:
Name of
Personnel
Project Role Company Signature Date
____________________________ ______________________________ LRP’s Signature Date
____________________________ ______________________________ LRP Name and Title Telephone Number
1019
Bijou Park Connector Trail 204 March 2025
Identification of QSP
Project Name:
WDID #:
The following are QSPs associated with this project
Name of Personnel(1) Company Date
(1) If additional QSPs are required on the job site add additional lines and include information here
1020
Bijou Park Connector Trail 205 March 2025
Authorization of Data Submitters
Project Name:
WDID #:
Name of
Personnel
Project Role Company Signature Date
___________________________ ______________________________ Approved Signatory’s Signature Date
____________________________ ______________________________ Approved Signatory Telephone Number
Name and Title
1021
Bijou Park Connector Trail 206 March 2025
Appendix M: Contractors and Subcontractors
List of contractors and subcontractors will be included by amendment after award of the contract, but prior to the start of construction.
1022
Bijou Park Connector Trail 207 March 2025
Appendix N: Construction General Permit
1023
CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD
LAHONTAN REGION
2501 Lake Tahoe Boulevard, South Lake Tahoe, CA 96150
(530) 542-5400 Fax (530) 544-2271
http://www.waterboards.ca.gov/lahontan
ORDER NO. R6T-2016-0010
NPDES NO. CAG616002
GENERAL WASTE DISCHARGE REQUIREMENTS
AND NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM GENERAL PERMIT
FOR STORM WATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY IN
THE LAKE TAHOE HYDROLOGIC UNIT,
COUNTIES OF ALPINE, EL DORADO, AND PLACER
The following Dischargers are subject to waste discharge requirements as set forth in this General Permit (as authorized by the Notice of Applicability):
Table 1. Discharger Information
Dischargers
Individuals, public agencies, private businesses, and other legal entities performing construction activities within the Lake Tahoe Hydrologic Unit that result in land disturbances of one acre or greater, or less than one acre if part of a larger common plan of development, or as otherwise defined in section II.D.1. of this General Permit.
Table 2. Administrative Information
I, Patty Z. Kouyoumdjian, Executive Officer, do hereby certify that this General Permit with all attachments is a full, true, and correct copy of an General Permit adopted by the California Regional Water Quality Control Board, Lahontan Region, on March 10, 2016. ____________________________________
PATTY Z. KOUYOUMDJIAN
EXECUTIVE OFFICER
This Order was adopted by the Regional Water Quality Control Board on: March 10, 2016 This Order shall become effective on: January 1, 2017
This NPDES Permit shall expire on: December 31, 2021
1024
TABLE OF CONTENTS
I. FINDINGS 1
II. CONDITIONS FOR PERMIT COVERAGE AND NOTIFICATION REQUIREMENTS 7 III. DISCHARGE PROHIBITIONS 13
IV. EFFLUENT LIMITATIONS 14
V. RECEIVING WATER LIMITATIONS 15
VI. PROVISIONS 21
VII. TRAINING QUALIFICATIONS AND CERTIFICATION REQUIREMENTS 24 VIII. BEST MANAGEMENT PRACTICES 25
IX. STORM WATER POLLUTION PREVENTION PLAN (SWPPP) 33
X. COMPLIANCE DETERMINATION 40
LIST OF ATTACHMENTS
Attachment A - List of Acronyms
Attachment B - Glossary
Attachment C - Construction Site Monitoring and Reporting Program Attachment C-1 - Bioassessment Requirements
Attachment D - Standard Provisions
Attachment E - ATS Requirements
Attachment F – SEZ/Floodplain Waste Discharge Prohibitions and Exemptions
Attachment G - Water Quality Objectives for Certain Water Bodies Attachment H - SWPPP Checklist
Attachment I - Fact Sheet
1025
NPDES General Permit for Storm Board Order No. R6T-2016-0010 Water Discharges Associated with Construction NPDES No. CAG616002 in the Lake Tahoe Hydrologic Unit