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D-2016-0358 Addendum to Abatement Letter1E August 26, 2015 Project 15-013.02 Mr. Alex Acenas City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 Subject, Addendum to Work Plan for Abatement of Asbestos -containing Material (ACM) And Deteriorated Lead -containing -paint Stabilization, 22241 McClellan Road, Cupertino, California Dear Mr. Acenas: On August 24, 2015, Envirocom collected sample Al and A18 at the subject location (Site) for laboratory testing. The samples were submitted to EMLab P&K of San Bruno, California to be tested for asbestos using 1000 point count method. The samples were collected from wall units at the garage, and a bedroom at the Site. The sample identifications and locations were identical to those collected at the Site on June 18, 2015, Results for the June 2015, survey was presented in June 23, 2015, report. Originally, the joint compound (mud) in sample Al and A18 contained 2% asbestos. Composite test results for the identical samples using 1000 point count showed <0.1% asbestos for drywall and joint compound. The laboratory test results are enclosed with this letter, Therefore, the building at the Site could be demolished using a DOSH-registered contractor implementing Class II OSHA work practices including wet method. The contractor shall notify Bay Area Air Quality Management District (BAAQMD). Please note that deteriorated pained surfaces have to be stabilized, before the demolition work. Additionally, asbestos -containing piping identified as sample Al2 in June 2015, survey needs to be properly removed and disposed, before the building demolition. Please feel welcome to call me If you have questions Sincerely, Envirocom F t r` F` Mitch Hallagh6jf, CPELSD h� OSHA -Certified Asbestos Consultant 97-2200EPA-Certified Building Inspector CDPH Certified Lead Inspector 1 Assessor 1-7266 800 Charcot Ave., Suite 114 San Jose, CA 95131 Phone (408) 894-9062 Fax (408)894-9063 Report for: Mr. Mitch Hajiaghai Envirocom 800 Charcot Avenue Suite 114 San Jose, CA 95131 Regarding: Project: 15-013.02; Residential EML ID: 1413786 Approved by: Approved Signatory Dr. Kamashwaran Ramanathan Dates of Analysis: Asbestos -EPA 1000 point count: 08-26-2015 Service SOPS: Asbestos -EPA 1000 point count (EPA Methods 600/R-93/116 & 600/M4-82-020, SOP EM-AS-S-1262) All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. Due to the nature of the analyses performed, field blank correction of results is not applied. The results relate only to the items tested. EMLab P&K ("the Company") shall have no liability to the client or the client's customer with respect to decisions or recommendations made, actions taken or courses of conduct implemented by either the client or the client's customer as a result of or based upon the Test Results. In no event shall the Company be liable to the client with respect to the Test Results except for the Company's own willful misconduct or gross negligence nor shall the Company be liable for incidental or consequential damages or lost profits or revenues to the fullest extent such liability may be disclaimed by law, even if the Company has been advised of the possibility of such damages, lost profits or lost revenues. In no event shall the Company's liability with respect to the Test Results exceed the amount paid to the Company by the client therefor. EMLab P&K, LLC EMLab ID: 1413786, Page 1 of 2 Client: Envirocom C/O: Mr. Mitch Hajiaghai Re: 15-013.02; Residential EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA 94066 (866) 888-6653 Fax (650) 829-5852 www.emlab.com Date of Sampling: 08-24-2015 Date of Receipt: 08-25-2015 Date of Report: 08-26-2015 ASBESTOS POINT COUNT REPORT: EPA METHOD 600/R-93-116 Location: Al Sheetrock/Ta e/Mud and Paint -garages interior wall Total Points Counted: 1000 Lab ID-Versiont: 6511483-1 Sample Layers Asbestos Type Asbestos Points Asbestos Counted Concentration (%) Blue Paint - ND Layer Totals: - Tape - ND Layer Totals: - - White Drywall /Joint Compound Chrysotile 0 < 0.1 Layer Totals: 0 NA Comments: Location: A18 Sheetrock/Ta e/Mud and Paint -bedroom Total Points Counted: 1000 Lab ID-Versiont: 6511484-1 Sample Layers Asbestos Type Asbestos Points Asbestos Counted Concentration (%) Tape ND Layer Totals: White Compound with Paint Chrysotile 0 < 0.1 Layer Totals: 0 NA White Drywall /Joint Compound Chrysotile 0 < 0.1 Layer Totals: 0 NA Comments: The analytical sensitivity is 1 asbestos point. The limit of detection is 1 asbestos point divided by the total number of asbestos points counted and multiplied by 100. The results relate only to the items tested. Interpretation is left to the company and/or persons who conducted the field work. The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. All samples were received in acceptable condition unless otherwise noted. EMLab P&K reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified. I A "Version" indicated by "x" after the Lab IN with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x". EMLab P&K, LLC EMLab ID: 1413786, Page 2 of 2 I 1001413786 ASBESTOS,, LEAD-IN-PAINT,,AND NON -VIABLE BULK MICROBIAL ANALYSIS REQUEST Project Name. Q✓S; `} �c� j f'�-C3j` ,O.Z ----� Project Ago: Date _; Zlf , 15 I Project f_Qcatiitin: � � Client* L Euo sampler: Sample Bate Description( QuentitylLocatiob to Sampled idG PLtVf All [] N1 Rust 24 hr. 49 fh 72 hr, 13 ijw*.'�" t' y1.pt�,� Relinquished b * Date Re;slved by - Date U Dhareot Avenue, Suite,114 -San joqa • Catifor�95T28 Phone (403) 894-9062 -Fax ( 08) 89"063 �'ea pt�-, From the "Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study" prepared by Thomas Reid Associates for the City of Cupertino, April 2006 FOR INFORMATION ONLY APPENDIX I. MITIGATION MONITORING AND REPORTING PLAN The following Mitigation, Monitoring and Reporting Plan (MMRP), was prepared for this project pursuant to CEQA Guidelines. According to the Guidelines: "In order to ensure that the mitigation measures and project revisions identified in the Initial Study/Mitigated Negative Declaration are implemented, the Lead Agency, the City of Cupertino (City) shall adopt a program for monitoring or reporting on the revisions which it has required in the project and the measures it has imposed to mitigate or avoid significant environmental effects." (§I5097(a)) "The Lead Agency may choose whether its program will monitor mitigation, report on mitigation, or both. "Reporting" generally consists of a written compliance review that is presented to the decision making body or authorized staff person, A report may be required at various stages during project implementation or upon completion of the mitigation measure. "Monitoring" is generally an ongoing or periodic process of project oversight. There is often no clear distinction between monitoring and reporting and the program best suited to ensuring compliance in any given instance will usually involve elements of both." (§15097 (c)) The NIMRP lists the Impacts, Mitigation Measures, and Timing of the Mitigation Measure (when the measure will be implemented) related to the Stevens Creek Corridor project. The responsibility for ensuring that the mitigation measure has been implemented would be the responsibility of the City of Cupertino. All of the mitigation measures listed in the MMRP would be implemented by the City or by its appointees, According to CEQA Guidelines Section 15126.4 (a) (2), "Mitigation measures must be fully enforceable through permit conditions, agreements, or other legally -binding instruments." Therefore, all mitigation measures listed in this MMRP would be adopted by the City when the project is approved. Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — April 2006 Appendix / — Mitigation Monitoring and Reporting Plan Page 2 Impact T Mitigation Measure entat Implementation —F Monitoring Verified Responsibility & Tim ing Responsibility Implementation B M Or 77777U impact; The removal Mitigation Measure B10-1:,� Vegetation, tree, bridge, Implementation: Qualified Monitoring: Project Initials of structures and the and building removal activities within the project area biologists manager to schedule removal or trimming shall be scheduled to take place outside of the nesting Timing: During the removal andfor trimming of shrubs or trees season (February I to August 31) to avoid impacts to construction phase of the outside of nesting season. could impact nesting nesting birds. In order to avoid impacts to existing project If not feasible, project Date birds, if present. raptor nests during the non Oesfing season, a manager shall ensure that preconstFuction survey of alltrees that could support removal/trimming is raptor nests shall be completed- Every attempt shall completed within five days be made to protect trees and nests that contain raptor of the completion of nest nests. surveys- If nests are However, if construction is unavoidable during the 1 found, project manager and implementa nesting season, a qualified biologist shall conduct a etion would biologist would that survey for nesting raptors and other birds within five days priorto the start of construction activities. If buffer is maintained until active nests are not present3l construction activities chicks have fiedged- can take place as scheduled. If more than 5 days Biologistwould provide a memo report on the results elapse between the initial nest search and the of the nest survey to beginning of construction activities, another nest project manager. survey shall be conducted- If any active nests are detected, a qualifier[ biologist shall determine the appropriate buffer to be established around the nest. CDFG generally accepts a 50-foot radius buffer around passerine and non-p6ssefine land bird nests, and up to a 250-foot radius for raptors, however the have fiexibility to the biologist shall reduce or expand buffer depending on the spa I cific circumstances. Impact: Construction Mitigation Measure BIO-2: The following avoidance Implementation: Qualified bat Monitoring: Project Initials activities such as, but measures shall be implemented as necessary and as biologist manager to schedule not limited to, grading determined by a qualified bat biologist (defined as a Timing: Priorto construction construction activities near or the noise biologist holding a CDFG collection permit and a matemity roost tree Date generated from a Memorandum of Understanding with CDFG allowing outside of maternity Stevens Crook Corridor Park Master Plan and Resturafion Plan initial Study City of Cupertino -April 2006 numia =00 low ININISIOU1101K 191WIN Appendix I — Mitigation Monitoring and Reporting Plan Impact chainsaw or other loud noises could result in the abandonment of the big brown bat maternity colony roost and therefore impact the on -site big brown bat population. Mitigation Measure Implementation Responsibility & Timing a. Temporal avoidance. To avoid disturbance to an acti matemiiy colony, construction activities adja to the roost tree shall commence after ung are vote (flying) {i.e., after Jury 31) and end afore maternity lonies form (i.e., prior to Mar . CDFG considers th eternity season to occur m March 1 to August 31. us the project constr ion can be scheduled from S ember 1 throu March 1 to avoid potential colony, nce to the maternity roost b_ Construction buffer zo type of potential disturba maternity colony roost quali determine the eaten f const around the sycam e tree #27 maternity colon ay roost; A{ roost are gre r during the m zone forth on -breeding sea be estab' ed by a bat biologi Depending upon the the big brown bat d bat biologist shall m -free zones 8 ide 'fled as the active though i acts to the atemity se on, a buffer son day roo shall also st. This buffe ould be preventthe loss of roots and branche. mia Department of Fish and Game would notified of any active (,nurseries within the ruction zone. c. Preconstruction survey bats could move their prin building or tree (and other on the project site could fc predemolition survey for n conducted prior to any coi removal_ The survey shall bat biologist. I T loss Because the big brown day roost to an on -site ecies of bats occurring a new roost), a fing bats shall also be vction ar large tree conducted by a qualified nursery Page 3 Monitoring Verified Responsibility Implementation season. If not feasible, project manager shall ensure that measures a-d listed in 610-2 are followed. Bat biologist completing work would submit a letter to CDFG and project manager of monitoring activities and results. Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — April 2oa6 N/A = Not applicable to project Appendix I — Mitigation Monitoring and Reporting Plan Page 4 Impact Mitigation Measure I Implementation Responsibility & Timing Monitoring Responsibility Verified Implementation PNQed (and required) to be removed, a qualifie biology all exclude bats outside ofthe tiY season (i.e., ' r to r 1 r after J 1 when young are volent —th a of one-way doors_ Tree cutting or on shall then follow no less than three days a e e all bats may not exit each night If onbreeding 'bernaculum is found in a b ' ng or tree that needs r vat, the individ is shall be safely evicted also h the f one-way doors as described above. Impact: If present Mitigation Measure BIO-3: The following avoidance Implementation: Qualified Monitoring: (a) Survey Initials within creek or measures for WPT, CRLF, and Dusky -footed woodrat biologists, project supervisor biologists to submit a letter adjacent upland shall be implemented: and all crew members. report of survey results to habitat CRLF, WPT, and woodrat nests a. Preconstruction Survey. In the two days priorto Timing: Priorto construction project manager. (b) Project crew to sign a could be crushed by the start of project activities, a qualified biologist shall and during construction as sheet for receipt of CRLF, Date project activities or by perform one daytime survey;for CRLF. The entire specified. WPT, and woodrat vehicle or human work area, including arty burrows, rocks and woodpiles that may be disturbed by construction training. Sign -in sheet held access. activities, shall be inspected 'for CRLF_ If CRLF is by project supervisor. (c) Biological monitor to report detected, work shall be delayed and the USFVVS shall daily to project supervisor. be contacted on how to proceed (since it is a (d) Project supervisor to Federally Threatened species). If during this survey enforce speed limit and WPT or woodrats are also detected, the CDFG shall parked vehicle check. be contacted on how to proceed (since they are State Species of Special Concern). b. Employee Education Program. An employee education program shall be conducted prior to the initiation of project activities.; The program shall consist of a brief presentation by persons knowledgeable in federally listed and state special status species biology and legislative protection to explain concerns to contractors and their employees. WPT = Western Pond Turtle The program would include the following: a description of CRLF ,WPT, and woodrats and their CRLF = California Rt d-Legged Frog habitat needs; an explanation of the status of CRLF, Stevens Gre Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino —April 2006 Appendix I — Midgadon Monitoring and Reporting Plan Page b Impact Mitigation Measure Implementation Responsibility B Timing Monitoring Responsibility Verified Implementation WPT and woodrats and their protection under state and federal laws; and a list of measures being taken to reduce impacts to CRLF, WPT, and woodrats during project activities. Crews shall be instructed that if a CRLF is found, it is to be left alone and the project foreman and the USFWS must be notified immediately. Likewise, if a WPT or woodrat nest is found, it is to be left alone and the project foreman and CDFG must be notified immediately. c. Daily Monitoring_ During the construction phase of the project, a qualified biologist or a trained, on -site monitor shall check the site in the morning every day before construction activities begin for the presence of CRLF, WPT, woodrat or other wildlife presentwithin the work area_ If CRLF, WPT, or woodrat is found, construction would be halted and the monitor would immediately notify the appropriate regulatory agency. Subsequent recommendations made by the USFWS or CDFG shall be followed. The monitor would not handle or try to relocate any special -status species. (An alternative strategy for', action in the event a CRLF, WPT, or woodrat nest is found would be to create a Handling/Salvage Plan to be agreed upon by USFWS and CDFG. This Plan would potentially avoid any long delays associated with finding a CRLF, WPT, or woodrat and would need to include procedures such as how and where to imove individua€s.) d. Speed Limit. Vehicles shall not drive more than 5 miles per hour within the project area_ if any WPT, CRLF, or woodrats are seen in the path of a vehicle, the vehicle shall stop until the animal is out of the path. Parked vehicles shall be thoroughly checked underneath before they are moved to ensure that no WPT, CRLF or woodrats are on the ground below the vehicle. Stevens I Creek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — April 2006 Appendix I — Mitigation Monitoring and Reporting Plan Page 6 Impact Mitigation, Measure :EResponsibility Implementation &Timing Monitoring Responsibility Verified Implementation pact: Potential take igation Measure BIO.4: The following Best Implementation: Project Monitoring: Qualified Initials steelhead due to M agement Practices (BMPs) from the Santa Cla manager and qualified fisheries fisheries biologist to submit r lignment, Vail Water District (District) 2005 BMP Handbo biologist a letter report of survey d atering and and eam Maintenance Program would be u Tuning: Priorto project results to project manager, rel cation activitie during o ect implementation rLq j plementation to avoid impacts o pp aroval Corps and U.S. Fish and Date steelhea due to dewatering or sediment He runoff WIdlife Service. Any entering th creek because of trail constru on, bank additional monitoring layback an r, erosion stabilization strut re removal requirements called out in (see Append' for full text of BMPs). ese the Corps permit would N/ measures may modified depending n the also be followed. outcome of the AA BiioolloogicAaI Opi on. 2005 BMP Handbo 1 V /11 WQ-12 Dewaterf Byp s Wafer Non -tidal Sites WQ-16 Avoid Erosion en storing Flows WQ-18 Erosion and Sedi t Control Measures WQ3 Pump/Generator t erations and Maintenance WQ-5 Soil Stockpile WQ-10 Concrete a Near Wate ys WQ-15 Ground ter Management BI-7 Minimize earn Access Impacts BI-2 Salva Native Aquatic, Vertebrates m Dewatere Channels BI-3 Co duct In -Channel Work during the Dry eason BI-8 emove TemporaryFillIs as Appropriate W 6 Stabilized Construction Entrance -10 Vehicle and Equipment Fueling Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — April 2006 I 0! win ma 't ;i yamIM ii Appendix 1— Mitrgafion Monitoring and Reporting Plan Page 7 Impact Mitigation! Measure Implementation Responsibility & Timing Monitoring Responsibility Verified Implementation Vehicle and Equipment Maintenance re also included to minimize impacts from g the two new bridges, which would requir of concrete. Migrating steelhead would o cted through implementing BMPs and united Neofconcrete. Periods (LOPS). ,Newly created s am Id be planted and mulched actor ng to the tio Plan to minimize the effects o ank dun the first rains afterthe co letion of / ^ IN/A ction_1 Impact: The Mitigation Measu 1310-5:I Top tect sensitive Implementation: City of Monitoring: The Initials expand vt for use wildlife and habitat in impacts ue to visitor and dog Cupertino Recreation Supervisor for and new o use use throughout the pr 'ect are , the following Timing: Immediately g followin Blackberry Farm shall Within th p oject area minimization and/or av an measures would be project construction coordinate the posting of has the p ntial to ape implemented: signs, ensure patrols impact se hive a. Post signs- The City s I post signs intermittently completed by both City Date wildlife a abitat along the trail to inform e p lit tc stay on the trail; Parks Service Officers and through it use, clean up dog waste, a leash aw requirements. volunteers, provide imprope dis osal of direction to maintenance dog w e, a b. Patrols and Citati ns. The Ct Parks Service crews for clean up of dog increas d Officers shall coma ete patrols of a project area to waste, and coordinate with sedim cation n enforce the leas aw provisions, i e citations for SCVWD biologists to thecr k. Nativ violations and a ucate the pubfic on a presenceof assess impacts associated anim s could 1 ve special status pecies within the proje area. with visitor and dog use nes or otherwi c. Voiuntee atrols and Education. Vol teers shall within the project area and flee rom dogs int ding into the provide fr uent patrols of the project are as much any adaptive management that needs to be ha itat areas. as once r day) to educate dog owners ab the completed. leash I provisions, inform visitors that use ide of Bla rry Farm is confined solely to the tray and edu to visitors about the presence and natural his Ty of special status species found within the p ject area. The City would be responsible for lunteer training and coordination_ Stevens Creek Corridor Park Master Pian and Restoration Plan lniffal Study City of Cupertino — April 2006 Appendix I — Mitigation Monitoring and Reporting Plan Impact Mitigation Measure implementation Responsibility & Timing Monitoring Responsibility Verified Implementation Creek Use. Recreational use of the creek, such a w ing, would be confined to one area in Blackber Fa outside of the steelhead migratory and sp ing season (October 15to June 15 of any ven year minimizecieekdisturbance. Likewise, sfuden rtiapating in guided educational pr rams throught environmental education center McClellan an ch would be limited to creek ccess in only one to on. e. Park Clean Park maintenance cr s, or other City employees designated by the ecreation Supervisor far BI kberryFarm, wo clean up accumulated dog ste found with" the project area. City Parks Service i v unteer patrols would monitor accum ti and provide direction on the frequen an eed for cleanup activities. f. Screen Trail. In order t rovide wildlife refuge and .cover, approximately f a e upland and riparian understory planting wo be: vided. This would compensate for indire effects ociated with increased human an dog use wi in the corridor. g. Adaptive Mana ement. If it is d rmined at any at mitigati measures listed a ove are not tat sufficiently mini zing impacts to then ive flora and fauna and res red habitats, the City sh discontinue permitting d s within the project area. ewise, if habitat di rbance or decreased steelhea survivors pis determined tol be a direct imp t from visitor use, appropriate measures shall be imple nted, such as closing or fencing off po ns of th ail, to avoid further impacts. Impact: The gation Measure BIO-6: lCalculations for 00fiornmended Implementation: City of Monitoring: City of proposed trail may Tree Protection Zones would be Cupertino Cupertino Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — April 2006 Impact Mitigation Measure Implementation Responsibility & Timing Monitoring Responsibility Verified Implementation ffect the root zones y a Arborist certified by the International Timing: During trail design Initials f naiive andlor Arboriculture orAmerican Society of ritagetrees if it is Arbofists prior to, preparation of p ced within the n documents. These calculations wo d be Date t d tine. g the Conceptual) Trail Plan_ Based \rl ulations, the trail would be rerouted nd to be outside ofthe drip]]ne of any ative Impa t:Tree Iri ming Mitigation M sure BIO-71 The folio g measures Implementation: Project Monitoring: Project or re oval cou would be imple ented to ensure that o significant manager would apply for and manager to supervise free violate City of impacts would uras a result oftr a removal obtain permits; contractor would removal contractor. Project Initials Cupert o an CDFG activities: l�T/II A remove trees, manager shall keep policies ga ing p rotecte tr 1V L � a. To satisfy the req irements o CDFG, all coast live Timing: Appropriate permits permits on file for five years, the restoration Bate 1 oak trees removed fro the pr ect area would be would be obtained for tree monitoring period. replaced at a 3:1 ratio tree planted for each tree removal prior to project removed). These trees a be replaced in oak approval- Trees would be woodland habitat found th 'ughout the project area. replaced at required ratios post Oak trees would be rep] e; using direct -seeded construction activities_ acoms collected from t e Ste ns Creek Watershed from as close to the jectsite spossible. b. I n the event th construction tivities require the removal ofspeci n or hegtagetr s not included in Appendix H, an dditiona! tree remo I permit would /A have to be ob ned from th ',e City of C ertino. All requiremen or removal as stated in th tree removal permit wou be foil] awed. c. All pl ting activities shall be consistent , h the Resto on Plan and with Guidelines and dards for La d Use near Streams (SCVWRPC 2005), ind ing guidelines regarding landscaping near n ral vegetation such as Use of Locally Native ecies" and "Use of Ornamental or Non-native andscaping°. Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — Apri12006 Appendix l — Mitigation Monitoring and Reporting Plan Page To Impact Mitigation Measure Implementation Monitoring Verified Responsibility Z Timing Responsibility implementation CULTURAL RESOURCE$ J Impact: The project Mitigation Measure CUL-1:II Prior to the initiation of Implementation: City — Public Monitoring: City —Public Initials could affect as yet construction or ground -disturbing activities, the City of Works Dept. Works Dept. unknown prehistoric Cupertino Project Manager shall conduct a tailgate or historic cultural meeting to inform all construction personnel of the materials (including potential for exposing subsurface cultural resources Timing: During a pre- Native American and to recognize possible buried cultural resources. construction field meeting with Date skeletal remains). Personnel shall be informed of the procedures that contractors would be followed upon the discovery or suspected discovery of archaeologicalrnaterials, including Native American remains and their treatment. Impact: The project Mitigation Measure CUL-2:II Upon discovery of Implementation_ City— Public Monitoring: City— Initials could affect as yet possible buried prehistoric and historic cultural Works Dept. Public Works Dept. unknown prehistoric materials (including potential) Native American skeletal or historic cultural remains)', work within 25-feet of the find shall be materials (including halted and the City of Cupertino's Project Manager Timing: During construction Native American shall be notified. Date skeletal remains). The Project Manager shall retain a qualified archaeologist to review and evaluate the find. Construction work shall not begin again until the archaeological or cultural resources consultant has been allowed to examine the, cultural materials, assess their significance, and offer proposals for any additional exploratory measures deemed necessary for the further evaluation of, and/or mitigation of adverse impacts to, any potential historical resources or unique archaeological resources that have been exposed, if the discovery is determined to be a unique archaeological or historical resource, and if avoidance Stevens Creek Corridor Park Master Plan and Restoration Plan lnifial Study City of Cupertino — April 2006 Appendix I — Mtigation Monitoring and Reporting Plan Page 11 Impact Mitigation Measure Implementation Monitoring verified Responsibility & Timing Responsibility Implementation of the resource is not possible, the archaeologist shall inform the Project Manager of the necessary plans for treatment of the find(s) and mifigation of impacts. The treatment plan shall be designed to result in the extraction of sufficient non -redundant archaeological data to address important regional research considerations. The Project Manager shall insure that the treatment program is completed. The work shall be performed by the archaeologist, -.and shall result in a detailed technical report that shall be filed with the California Historical Resources Information System, Northwest Information Center, CSU Rohnert Park. Construction in the immediate vicinity of the find shall not recommence until treatment has been completed. If human remains are discovered, they shall be handled in accordance with State law including immediate notification ofthe County Medical Examiner/Coroner. Impact: The project Mitigation MeasureCUL3- All excavation contracts Implementation: City —Public Monitoring: CIty—Public Initials could affect as yet for the project shall contain provisions for stop -work in Works Dept. Works Dept. unknown prehistoric the vicinity of a find in the event of exposure of Timing: Include in Plans and or historic cultural significant archaeological resources during subsurface Specifications document materials (including construction. Date Native American skeletal remains). In addition, the contract documents shall recognize the need to implement any mitigation conditions required by the permitting agency. In general, the appropriate construction conditions should be included within the General Conditions section of any contract that has the potential for ground disturbing operations. Impact: The project Mitigation a 4� Ica Implementation: City —Public Monitoring: City —Public could affect cultural monitorin a asis s aken Works Dept. Works Dept Stevens Greek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — April 2006 Appendix I — Mifigation Monitoring and Reporting Plan Page 12 Impact Mitigation Measure Implementation Monitoring Verified Responsibility & Timing Responsibility Implementation aterials related to ring subsurface constructipn within a IMfoot buff Timing: During any subsurface Initials A SCI-7 t5. z e of the recorded boundary of CASCN15. construction activities within Acti sthat potentially require monitoring include CA-715 habit restoration, trail construction, and pedes n/bicycle bridge construction. i Date Archaeo gicai monitoring on an intermittent is to allow fars t checking of subsurfaceconst c ion shall be un rtaken for areas outside oft recorded boundaryof SCI-715 and the 100-fo buffer zone. Monitoring in a areas shall be et th discretion of the Profession chaeologist retain to provide archaeological ito' rvices. Impact: a oject Mitigation Measure UL-5'.Arc eological Implementation: City —Public Monitoring: City —Public Initials could aff Itural monitoring on a part ti e basis allow for spot- Works Dept. Works Dept. materials tad to checking of subsurface n ction shall be Timing: During development of CASCI-71 undertaken for areas o of the recorded construction documents boundary of CA-715 a the 100-foot buffer zone. Date Monitoring in these area sh be at the discretion of the Professional Archa logist tained to provide archaeological monit ng senric s. Impact: Thep jest Mitigation Measu CUL-6; Con ction methods Implementation: City — Public Monitoring: City —Public Initials could act cut rat ocedures minimizesubsurfa disturbance Works Dept. Works Dept materi Is relate to e imple nted where feasible a d practical. Timing: During development of CAS I-715. may i lude: (1) planting by seed, nd hand construction documents ation r planting in the habtat recto lion areas Date 100 eet of the recorded boundary of ASCI- ais g the grade of the proposed trail (c ping) ' eared fill within 100 feet of the recorde ry of CA-SCI-715. Fill shall be no less th hesdeep. Rubbertired or trackedequipme t e used to minimize surface disturbance_ Stevens Creek Corridor Park Master Plan and Restora5on Plan Initial Study City of Cupertino —April 2006 Appendix l — Mitigation Monitoring and Reporting Plan Page 13 Impact Mitigation Measure Implementation Monitoring Verified Responsibility & Timing Responsibility Implementation - `HAZARDOUS:WASTE pact: Soils with ' igation Measure HAZ4: Perform soil testing for Implementation: City of Monitoring: City of Initials zardous levels of p ticide residue where major soil disturbance wo Cupertino— Public Works Cupertino— Public Works p sticide residue occ (such as the areas of creek realignment). I Department Department c Id be unearthed n pesti es are detected, follow the apprapriats Timing: During construction th project vicinity conta ated material and handling -protocol or to design Date and duri any soil disturbance. 1V/1� HYDROLOGY nd ImpacYto n th event of Mitigation Measysignag Implementation: City of Monitoring: City of Initials Trail ud be significant flood is, uld close the trail Cupe lino —Public Works Cupefino—Public Works subjZalth corridor and wout the Stevens Creek Department Department risks fy flow Boulevard and MRoad entrances Timing: As needed, during eventsalerting trail usere. significant flood events over Date 1500 cfs. LAND USE Since t is not Mitigation Measu LU-1: The p sect Implementation: City of Monitoring: City of Initials at this a the Environmental E cation Center at cClellan Ranch Cupertino— Public Works Cupertino— Public Works esign of he Nature Present shall be designed to t in with the Department Department ed existing buildi s and to be, consistent 'th the Timing: Priorto construction mental McClellan nch Master Plan Mission ; ement. Date ion Center any submitted Faster may not b entwiththe lan Ranch Plan. Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study City or Cupertino —April 2006 Appendix /—Oliga6on Monitoring and ReponIng Plan �r Page 14 Impact Mitigation Measure Implementation Monitoring Verified Responsibility & Timing Responsibility Implementation PUBLIC SERVICES Impac , k of Mitigation Measure Pub EEr l: The City of no Implementation: City of Monitoring: City of Initials maintenance Parks and Recreation Departme ensure that Cupertino Parks and Recreation Cupertino trails results in the>PIN s exist In maintenance budget Department degradation of the a- enance prior to project facilities and could Timing: Priorto trail result in safety, /� implementation Date Stevens Creek Corridor Park Master Plan and Restoration Plan Initial Study City of Cupertino — April 2006 w U M W U 10 7E 40 W M J