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Agenda Packets - Sewer System - 2011-11-08 5��EWER SYS1,"EM C'�GRAMITIJ�E�11,_ AGENDA Nc.,wesnijer 8, 201,1' 10,"30 a,rn. Costa MesaSknfary0�strk't 628 %ffl. 19m1131'reet Costa Mesa,,, CaKIfornla STANIChhIG REPORTS 8, Monthly Spill Statistics ^ No new sanitary sewer overflows (SSOn) to report 114EW DISCUSSION ITEMS H. 2744Card|naU [)riv*—SS0 on 9127111 ^ 2740 Cardinal Drive; Notice of Required Sewer Lateral Maintenance ~ %7J3`2734. 2737. 2741. 2744 Cardinal Drive; Notice of Blocked Sewer Lateral U| Seismic Study &Retrofit ofC-NMISD Pumping Stations ~ Review report byJTA8truoturu( Engineers ° lmpiementation of Priority 1, 11, Ill recommendations now and Priority IV and V in future (pg 13) ^ JTAto perform Priority � atudy ^ CM8D Staff working onPhorftyU and U| N, South Coast Plaza Re�stauonts ^ Minutes of meeting held 10V19/11 ^ Proposed sulfide study by EEC ^ Proposed down drain for incoming line to reduce turbulence and uu|fidem|eaae Y. W Atias,/CMNVSAHydnuuKio Modeling —Oral Report ^ Training for G|8 Atlas & CMMS11/4/11 Vl. PICA Inspection Technology— Ora[ Report ^ C|eun|oQ force mains ("p�qgingl prior to electronic inspection ~ 23 rd Pumping Station Force Main� pre-pigging meedng11A/ 1 V||. Victoria Pmrnpin0StaUon ^ New traffic rated door installed (Niko|aCorporation) VUi Articles ofInterest ^ Jefferson County Sewer Rates Pagel of2 SeW.<°"i;; Syste. it Nove�nber 3. 2011 GIVISD EROJPGTS: IX. A. Project#101 West Side Pumping Station Abandonment-Status • Attendance by OCSD and discussion on project timetable • Topographic mapping of Canyon Drive by City of Costa Mesa B. Project#129 Bristol Street Sewer Phase II—Status • Recommendation for award of construction contract at 11/30/11 regular meeting G. Project#171 Irvine Pumping Station Force Main RehabHitation-:status • Finalizing plan and specs for bidding D. Project#185 System-IVide Sewer Reconstruction Phase 1 -Status Construction is continuing E. Project#189 Rehabilitation of Six Sewers Transferred to CISD —Status • Construction is complete; Staff and City of Costa Mesa monitoring South Coast Drive F. Project#190 Canyon Force Malin Rehabilitation • Design phase is continuing G. Project#192 System-Wide Sewer Reconstruction Phase 2—Status • Design phase is continuing H. Project#193 Pumping Station Seismic Study & Retrofit—Status Consultant report complete; Staff implementing Priority I, II, III recommendations K This is the time to receive any comments from members of the public, Next ib eting Date: December 6, 2011 Dated: November 1, 2011 Clerk of the District Page 2 of 2 IWi_,eefiij Date ct NOTICE OF REQUIRED SEWER LATERAL MAINTENANCE Date: October 14, 2011 Regarding Property at: 2740 Cardinal Drive, Costa Mesa Dear Property Owner: The Costa Mesa Sanitary District is the owner of the sanitary sewer system in Cardinal Drive serving your property. Based on a video inspection of the interior of the District's sewer main, roots are protruding from your sewer lateral into the District's main to the point the roots have restricted the flow and caused a sewer spill on Cardinal Drive on September 27, 2011. Sanitary Sewer Overflows are a violation of both state and federal laws and subject the District to fines. Please see the enclosed picture of your private lateral where it enters the District's sewer main. The picture was taken after the roots were substantially cut back and your lateral is virtually 100% blocked and will soon cause a backup into your residence. The roots in your lateral will soon protrude into the District's main again and block the flow so it is necessary for you to act promptly. The District requests you have the roots completely removed, then submit an "after video" showing no roots in the line. This will protect your residence and the District from further damage. In accordance with the District's Operations Code, the District has the right to charge you for the emergency response clean up costs for the 9/27/11 event, however, the District will waive these costs if you cooperate and remove the roots from your lateral. Additionally, the District has a Residential Sewer Lateral Financial Assistance Program that will fund 50% of the root removal costs up to the District paying $1,800. Please read the enclosed program materials, submit your application, and have the roots removed by November 14, 2011. The District's contact for the sewer lateral assistance program is: Steve Cano Maintenance Supervisor (909) 910-5998 (cell) Thank you for your cooperation in this matter. Sincerely, Robin B. Hamers District Engineer (714) 293-2727 (cell) 'o t a C I'ri'a 0 a 0 U F. e ;xi 41 wi f, '.5 n,"al"th"al"t and the nvirio nfo'tevit ( u r uael NOTICE OF BLOCKED SEWER LATERAL Date: October 14, 2011 Regarding Property at: 2733 Cardinal Drive, Costa Mesa Dear Property Owner: The Costa Mesa Sanitary District is the owner of the sanitary sewer system in Cardinal Drive serving your property and the enclosed picture was taken from inside the District's main at the point where your private lateral connects to the main. As is evident, roots located inside your lateral are restricting the flow and will soon likely block the flow from your lateral into the main, possibly causing a backup into your residence. The District strongly encourages you to take preventative measures by removing the roots. Also avoid flushing anything down your system other than bath tissue as products such as disposable wipes will catch on the roots and create a blockage. To assist you in removing the roots and maintaining your sewer lateral, the District has a Residential Sewer Lateral Financial Assistance Program that will fund 50% of the root removal costs up to the District paying $1,800. Please read the enclosed program materials and call if you have questions. The District's contact for the sewer lateral assistance program is: Steve Cana Maintenance Supervisor (900) 910-5998 (cell) Thank you for your cooperation in this matter. Sincerely, Robin B. Flamers District Engineer (714) 293-2727 (cell) Tr'otec-zing our c,o'uwn?nu nf;t.Y's fi-F l"th a,n d th4, eniviruond ent fwd" °rovi'WittiT Meeting Date Item Number 111Q8l11 111. JERRY TUCKER &ASSOCIATES, INC. CONSULTING STRUCTURAL ENGINEERS September 16, 2011 JTA Job# 11-101 Mr. Scott C. Carroll General Manager Costa Mesa Sanitation District 628 W. 19th Street Costa Mesa, CA 92627-2716 RE: Seismic Study of (14) subterranean Waste Water Pumping Stations in Costa Mesa Mr. Carroll: This summary report represents our assessment of the seismic performance of the fourteen subject subterranean waste water pumping stations in the City of Costa Mesa. The following pump stations were reviewed for this study: #1 Mendoza Drive. #13 23rd Street #2 Gisler Ave. #14 California Street #4 Harbor Blvd. #15 South Coast Plaza #9 Victoria Street #16 19th Street #10 Elden Ave. #17 Iowa Street #11 Irvine Ave. #20 Corporation Yard #12 Santa Ana Ave. #21 21st Street If you have any questions regarding this matter, please do not hesitate me at (949) 645-2422. o Q�oFw:ss�oy 9 W roc w } No. 2187 m Sincerely, XP.9-30-13 qjF Of CAI.�F�� Jerry W. Tucker Structural Engineer (S.E. #2187, Exp. 9/30/13) 466 Flower Street, Costa Mesa, CA 92627 (949) 645-2422 Fax: (866) 928-2249 e-mail: tucker w @JTAeng.com Costa M8G8 Sanitary District Waste Water PUOlDiOg Stations- Seismic Study ProjectDescription ....................................................................................................3 Scope Of Work..........................................................................................................3 Review OF/\5 Built plans and Documents ....................................................................3 Visual Site Observations Of Pump Stations ................................ .................................4 Analysis Oftypical pumping station configurations................................................. ....� HistoricalData ..........................................................................................................8 Structural Vulnerability OF the WWPS................................ .........................................9 Structural integrity of the vault/well GtrU[tUne5 ....-..-....---...-..-..-10 Permanent Ground Displacement..........................................................................10 SoilLiquefaction ................... ..................................... ............ .......... ................11 Non-Structural Vulnerability of the \@WPS................................................................. i1 Electrical and Control Equipment .........................................................................i2 Vitrified Clay Pipe (\/CP) .......................................................................................17 PipeShe8[--....-.......-..--..-......-...-..---...---.i7 Conclusions ............................................................................................................i3 Priorities.................................................................................................................13 Limitations... ........... .. ..........................................................................................14 References ................................... .........................................................................14 APPENDIX /\ - Pump Station Data Matrix.... .............................................................16 APPENDIX B - Pump Station Location Map ............................................. .................17 APPENDIX C - Liquefaction Hazard Map ...................................................................18 APPENDIX [> - Geofirm Recommendations ............................................................... i9 APPENDIX E - Photographs.....................................................................................21 APPENDIX F - l\/DiC8l Finite Element Analysis...........................................................35 Page 2 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Project esc ii i A structural seismic study of fourteeen waste water pump stations (WWPS) in the City of Costa Mesa, California. Focus of the study is an assessment of the structural integrity of Costa Mesa Santitary District (CMSD) underground waste water pump stations and their seismic resistance and vulnerability in the event of an earthquake of a magnitude 6.0 or greater. Scope � 1 The scope of this study is as follows: 1. Review the original plans furnished by the District for 14 pump stations. 2. Perform site visits to observe the existing conditions of the pump stations and the supporting equipment and enclosures. 3. Review previous seismic evaluations. 4. Perform anlaysis and evaluation of the pump stations based on a seismic event of magnitude 6.0 or greater. 5. Review and recommend strengthening schemes based on analysis and review. 6. Develope a rating system to target the most hazardous pump stations for seismic improvements. 7. Prepare this report. R,eview of As Btflit plans an Documents � eats The Costa Mesa Sanitary District provided structural and other drawings in the form of hard copies and electronic PDF files. Additionally, other relevant file documents in 8.5"x11" format were provided for our review and use. Professional judgment was used on some of the old drawings that have unreadable areas and drawings sets that do not have sufficient detailed information. A review of the plans for the pump stations was conducted prior to the commencement of the visual site observation of the stations. Page 3 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Visual Site Observations of Punip Stations The following observations were made during our visual site observations of the pump stations. Mendoza Drive Station (#1) • Wet well matches drawings. 72" I.D. precast concrete man hole rings observed. • The lining of the wet well has separated and the concrete structure of the well is being subjected to the corrosive effluent in the wet well. • Observed a 12" VCP inflow pipe as shown on the wet well drawings. • Electrical/Control Cabinet is bolted to a concrete base. No signs of corrosion. • Dry well shows signs of previous standing water. Gisler Ave. Station (#2) • Electrical/Control Cabinet is bolted to an elevated concrete pedestal. No signs of corrosion. Minimal corner bolting of cabinet to base. • Dry well housing valves shows no signs of distress. • Wet well inflow waste line appears to be 8" vitrified clay pipe (VCP). • Could not verify the 1" thick steel wall jacket shown in station drawings due to well coating. • Two corroded abandoned electrical disconnects were noted at the top of the wet well. Harbor Blvd. (Wilson) Station (#4) • Electrical/Control Cabinet is bolted to an elevated (19") concrete base. Found signs of significant corrosion at the base of the control cabinet. Victoria Street Station (#9) • Electrical/Control Cabinet is bolted to a concrete base. No signs of corrosion. • Layout and configuration consistent with drawings reviewed. Elden Ave. Station (#10) • Electrical/Control Cabinet is bolted to a concrete base. No signs of corrosion. • Layout and configuration consistent with drawings reviewed. Page 4 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study • This station was structurally remodeled in 1990. • Size and volume of this station are substantially larger than other stations observed. • Station receives flow from other stations in system. Perhaps the most critical of stations reviewed. Irvine Ave. Station (#11) • Electrical/Control Cabinet is stainless steel and is bolted to a concrete base. No signs of corrosion. • Layout and configuration consistent with drawings reviewed. • Hatch to valve vault was stuck. • This station has been remodeled relatively recently. Plans for this station were not provided for our review. Santa Ana Ave. Station (#12) • Electrica[/Control Cabinet is bolted to an elevated concrete base. Base of cabinet is severely corroded and not structurally sound. • Deep rectangular wet well. • Portions of Layout and configuration observed were consistent with drawings reviewed. • Station was substantially remodeled in 1986. 23rd Street Station (#13) • Electrical/Control Cabinet is stainless steel and is bolted to an elevated concrete base. Cabinet is well bolted to concrete base with no signs of corrosion. • Deep rectangular wet well. • There is a short CMU retaining wall behind the control cabinet that retains approximately 18" of earth. • Layout and configuration consistent with drawings reviewed. California Street Station (#14) • Electrical/Control Cabinet is bolted to a concrete base. Cabinet exhibits some signs of corrosion. Cabinet bolting should be reviewed. Page 5 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Large phase conversion motor mounted on top of control cabinet. Layout should be reviewed for seismic stability. • Rectangular wet well. Layout and configuration consistent with drawings reviewed. South Coast Plaza Station (#15) • Electrical/Control Cabinet is stainless steel and is bolted to a concrete base. Cabinet is well bolted to concrete base with no signs of corrosion observed. • Deep circular wet well. • Rectangular dry valve vault. • There is an odor treatment system with steel cabinet adjacent to the station. This cabinet is not well fastened at its base and there is some evidence of corrosion. Large drums of chemicals on a roiling cart observed. • Layout and configuration consistent with drawings reviewed. 19th Street Station (#16) • Electrical/Control Cabinet is bolted to a concrete base. Signs of corrosion observed at base of cabinet. • Soil has washed up against the cabinet from the adjacent earth slope. Iowa Street Station (#17) • Electrical/Control Cabinet is bolted to a concrete base. Cabinet exhibits some signs of corrosion. Cabinet bolting should be reviewed. • Cabinet is surrounded on three sides by a 3 foot high CMU retaining wall. • Precast circular well with VCP inlet pipe observed. • Segmented circular dry well with valving. • Layout and configuration consistent with drawings reviewed. Corporation Yard Station (#20) • Electrical/Control Cabinet is bolted to a concrete base. • Layout and configuration consistent with drawings reviewed. 21st Street Station (#21) Page 6 Costa Mesa Sanitary District Waste Water Pumping Stations -- Seismic Study • Electrical/Control Cabinet is bolted to a concrete base. No signs of corrosion were observed. Cabinet bolting should be reviewed. • Rectangular well with VCP inlet pipe observed. • Rectangular dry well with valving. • Layout and configuration consistent with drawings reviewed. Analysis o . gal purnping station configurations Our analysis of the existing wet and dry wells/vaults was based on soils loading information prepared specifically for this study by Geofirm of Laguna Beach, CA (Appendix D). Seismic events with Probability of Exceedance (POE) figures of 2%, 5%, and 10% in 50 years were used to determine peak ground accelerations (PGA) values for stations located in the various geographical quadrants of the study area. The average PGA for the CMSD pump stations is 0.718, 0.50g, and 0.368 for the 2%, 5%, and 10% categories respectively. Soil pressures and loading forces were generated based on the above noted probability categories and ground accelerations and used as a part of our review and analysis of the pump stations. Other Seismic design data: Using the street addresses close to the pump stations, latitude and longitude coordinates were obtained. Based on these coordinates, Sland Ssvalues were generated using "Java Ground Motion Parameter Calculator" through the website (http://earthquake.usgs.gov/research/ hazmaps/design/). These and the associated SD, and SDI values for each station are shown in the Pump Station Data Matrix (Appendix A). We employed methodology found in ASCE 31 (Tier 1) for some of our qualitative analysis during our study due to the lack of specific reinforcing and well construction information. The construction of the wells varies substantially across the fourteen pump stations reviewed. We have conducted finite element analysis (See Appendix F for sample results) of representative vault/well configurations based on the soils loading information from Geofirm (Appendix D). Some of the information for the wall construction and reinforcing of the vaults is absent from many of the as-built drawings reviewed. However, the retrofit pump stations have specific wall thickness, reinforcing and other design data. Many of the stations are Page 7 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study constructed with precast concrete vaults, bases, rings, and other elements. Our analysis is based on the information available. Based on our analysis and review of the subterranean vault structures, we believe that the structures reviewed would exceed allowable stress/design values for seismic events of magnitude 6.0 or greater. However, it is clear that the bending stresses reviewed are not the primary structural concern for these elements. The more relevant structural issue is the rather large displacements that will occur during the prescribed seismic event. In fact, based on historical evidence and data from the reference documents reviewed for this study, it is clear that most of the pump stations will remain primarily intact after the subject seismic event. All of the WWPSs are subterranean, therefore it is our assumption that the WWPSs will move with the ground motion during the seismic event. Building structures that are above ground have to react to the horizontal and vertical displacements that are inflicted on the structure by the ground moving under them during a seismic event. The electrical control equipment would have high seismic loading due to the ground displacements. Historical Data As a part of our review, we have studied numerous historical references relative to the seismic performance of waste water pumping stations and other sewage systems. A few examples of the historical seismic performance of these structures is present below. Seismic Study of Kellogg Creek WPCP, Portland, Oregon Below grade structures in the United states performed well in earthquakes however internal mechanical equipment is subject to damage. The report suggested keeping an inventory of mechanical components on-site. Pump station piping that passes through adjoining walls in structures that have significant differential settlement, could possibly be subject to shearing. Infiltration Study, Santa Rosa, CA Infiltration of storm water into the sewer systems is caused by cracked vitrified clay pipe (VCP) sewer lines. The cracking is caused by expansive soils conditions, settlement and seismic activity. After a major earthquake, there could be extensive cracking of VCP lines, either public or private. Once the cracks form, even just hairline cracks, roots can enter the sewer lines and thoroughly clog the line. Extremely heavy rain can nearly quadruple the flow to the treatment plant. In December of 2002 in Santa Rosa after several days of rain (one day had 4.23 inches of rain), the recorded flow through the plant averaged 60 MGD. The normal average in September 2002 was 16.2 MGD. Page 8 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study How does this affect Costa Mesa? It would depend on how many VCP pipes are still in existence. Prior to 1970, VCP was commonly used for sewer pipe. Other Historical Events: • During the 1989 Loma Prieta earthquake (California), the wastewater systems in the affected area withstood the earthquake with little damage. • In the 1995 Kobe earthquake, there was major damage to the wastewater plant due to ground deformation and differential settlement. The most significant problem with the pumping stations was again power outage, however after power restoration, most of the pumping stations started working despite reports of building structure damage • The 1994 Northridge earthquake caused significant damage to treatment plants and power outages affected 54 pump stations. • The 2010 Chile earthquake caused major damage to treatment plants, large diameter interceptor pipes and small diameter connection pipes. • In the 1987 Edgecombe Earthquake, pump stations with submersible pumps did not suffer damage. • The treatment plants and the pumping stations continued working in the Ormond earthquake of 1993. The above case studies show that earthquakes usually cause minor damage to subterranean wastewater pumping stations. However, liquefaction and permanent ground deformation were the two main causes of when severe damage did result. The main problem observed in most subterranean pump stations following earthquakes is power outages or damage to electrical and control equipment. Structural olneirabili the WWPS Structural vulnerabilities in the WWPSs can be categorized as follows: • Structural integrity of the vault or well structures • Displacement related vulnerability. o Displacements during the seismic event o Permanent Ground Displacement • Fault rupture • Soil Liquefaction or settlement • Soil Liquefaction — Lateral spreading of surrounding soils Page 9 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study ■ Soil Liquefaction — flotation of vaults and piping system components. tria t:ural integrity of thu vi','au t `well s truct trey During the course of our field observations of the fourteen WWPSs, the exact condition of the wet wells was not observable due to the protective coatings used on the inside of the wells. The dry wells observed were intact and did not exhibit signs of significant structural distress or cracking. Minor moisture related corrosion was noted in some of the dry wells at the attachments of the valving equipment and the well walls and floors. The conditions observed should be corrected with the normal maintenance of the equipment. At least two stations showed evidence of separation of the protective lining from the underlying concrete well structure thus allowing the corrosive effluent from the well to contact the concrete well structure. The linings should be repaired to prevent the deterioration of the well structure. The extension segments (or rings) between the main concrete well vaults and the access hatches are susceptible to earthquake induced shearing forces and displacements because the hatches are typically integral with the adjacent paving or concrete slabs and aprons at the ground surface. This establishes a differential displacement potential between the vault element deep in the ground and the surface restrained hatch and transition collars. Stations with this configuration should be retrofit to ensure good shear keying from vault top to hatch cover. Based on our analytical and field review of the subterranean well structures, we believe that the majority of the stations would exceed current design loading and stress limits during the subject seismic events. However, based on our review of the historical references and the displacement of these structures during the seismic events considered, it is clear that the more serious concern is the displacement aspect. Permanent ground displacement is a result of a fault rupture at the site or high intensity loading on subsurface condition of differential soil conditions. It can also be the result of highly liquefiable soils. Permanent ground displacement is as it is described-permanent. There is little that can be done to prevent damage from permanent ground displacement. The displacements generally would be assumed to be small in many cases and cause little damage. Page 10 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study For larger displacements, mitigation methods should be developed to lessen the damage to the WWPSs. Soil Soil liquefaction is a phenomenon whereby a saturated soil substantially loses strength and stiffness in response to an applied stress, usually earthquake shaking or other sudden change in stress condition, causing it to behave like a liquid. The effects of soil liquefaction on the structures can be extremely damaging. Structures whose foundations bear directly on soil which liquefies will experience a sudden loss of support, which will result in drastic and irregular settlement of the structure causing structural damage, including cracking of foundations and damage to the structure itself, or may leave the structure unserviceable afterwards, even without structural damage. The WWPSs in this study are subterranean except for the electrical and control equipment. Buoyant structures in soils with a high water table or soils where the water table is raised due to liquefaction may float or rise as well as tilt. Stations #2 (Gisler Ave., location #2), #14 (California Street, location #1), and #15 (South Coast Plaza, location #4) are located in areas known have or suspected of having higher than normal liquefaction potential. See Seismic Hazard Map, Appendix C. Stations #11 (Irvine Ave., location #7) and #13 (23rd Street, location #9) are immediately adjacent to areas noted as having liquefaction potential. Methods to mitigate the effects of soil liquefaction include various soils compaction techniques such as vibro compaction, dynamic compaction, and the use of compacted stone columns. These methods result in the densification of soil and enable structures to withstand soil liquefaction. It is not clear whether these methods are suitable to mitigate the effects of soil liquefaction for subterranean structures such as the WWPSs in this study. ri -S r tit tural Vulnerability of t1le WWPS Nonstructural vulnerabilities in WWPSs can be categorized into two main types, including vulnerability of electrical and electronic equipment, and mechanical component vulnerability. Page 11 Costa Mesa Sanitary District Waste Water Pumping Stations -- Seismic Study Many of the electrical and control cabinets we reviewed had signs of corrosion near the base. Many of the cabinets were not bolted to the concrete bases properly or the bolts/fasteners were deteriorated. All cabinets should be reviewed for seismic stability and those with deficient anchorage or deteriorated cabinet bases should be retrofit or replaced. Check and control valves, particularly heavy ones should be fixed properly to the basement of the underground structures in the WWPSs. Based on reference data, it is clear that submersible pumps tolerate earthquake effects better than fixed pumps and submersible pumps are less vulnerable to earthquakes. All of the WWPSs reviewed utilize submersible pumps. The current pump style is already the optimal choice for performance in seismic events. Existence of deteriorated and fragile pipes in the under-ground structures of WWPSs is another source of vulnerability, which weakens in strength during earthquakes. The most popular pipe type, especially in the WWPSs built before 1995 is the cast iron pipe which compared with new pipe types is much more brittle and sensitive to shaking. Joints should tolerate shaking and displacement caused by earthquakes. In earthquake prone areas usually flexible joints should be installed to connect fittings and valves and pumps to pipes in order to tolerate shaking and displacement caused by earthquakes. Observations of the WWPSs have revealed fixed joints as the most predominant type. The WWPSs house all electrical and electronic equipment in a steel box/cabinet mounted on a concrete pad near the underground well structures. The toppling and falling of inadequately mounted equipment or deteriorated control cabinets can cause a significant failure in the WWPSs during a strong earthquake. Vitrified Clay, Pipe I(VCI Vitrified Clay Pipe has proven to be very susceptible to fracture and shearing in moderate to server seismic events. This is supported by the historical evidence from past earthquakes. Our review of the pump station drawings and our direct site observations indicate that a number of the stations have VCP piping. P"i'i;e shear° Our analytical models and displacement studies indicate that the mass differential between the vault elements and the piping elements is significant and Page 12 Costa Mesa Sanitary District Waste Water Pumping Stations -- Seismic Study will most likely lead to pipe shearing during seismic events of the magnitudes considered in this study. An example of this type of vulnerability is the piping between the two vault types wet/dry in the California Street station. Location #1 station #3, California street Station The piping between the two concrete vaults/wells is very likely to shear due to differential displacements between the vaults during seismic activity. Conclusions Earthquake vulnerability of the WWPSs in Costa Mesa has a direct correlation with the structural and non-structural vulnerabilities. Non-structural earthquake vulnerability is one of the predominant hazards in major earthquakes, especially from mechanical parts (piping and joints), electronic and electrical control boards/cabinets in wastewater pumping stations. The WWPSs can also be severely affected by a power outage or earthquake damage to the power and control systems supporting the WWPS. Priorities The non-structural and structural repair of the WWPSs can be summarized in the following priorities: Priori I: Repair electrical control equipment enclosures and base connections at all WWPSs except #11 (Irvine Ave.) and #13 (23rd street) to current 2010 CBC and ASCE 7-05 standards. A. Provide proper anchorage per section 13.3 of ASCE 7-05. Page 13 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study B. Repair rusted base and side walls as required. C. Provide preventative measures to prevent future rust. Priori II: Provide secondary (back-up) power to all WWPSs Priority III: Provide flexible connections of all piping between and to and from all WWPSs. The solution to this recommendation is outside of the scope of this seismic study. A qualified registered mechanical engineer can provide the Costa Mesa Sanitary District with recommendations regarding the proper connections. Priority IV: Provide additional structural support for all the WWPSs in liquefaction zones as shown in this report. Support can be accomplished by the following method: A. Surround the perimeter of the wet and drywell (as one unit) with concrete grade beams. B. Provide concrete caissons at each corner. Caissons shall be embedded into bedrock. Priority V: Bond together all concrete entry rings with steel dowels and epoxy so that there is no movement between each element. U The conclusions reached above are based on a limited review of the structures. Due to the limited scope of this review and limited access to structural elements, not all of the structural elements or connections have been observed. No tests have been conducted on any materials and no warranties are expressed or implied. The report is based upon widely held engineering principles and judgment, and it follows a standard of care which defines a level of skill and competence ordinarily and contemporaneously demonstrated by professionals of the same discipline practicing in the same locale and faced with the same or similar facts and circumstances. References • 2010 California Building Code, Part 2, Vol. 2 Page 14 Costa Mesa Sanitary District Waste Water Pumping Stations -- Seismic Study • ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, American Society of Civil Engineers, 2006 • ASCE/SEI 31-03, Seismic Evaluation of Existing Buildings, American Society of Civil Engineers, 2003 • ASCE/SEI 41-06, Seismic Rehabilitation of Existing Buildings, American Society of Civil Engineers, 2007 • Zare, Mohammad R.; Wilkinson, Suzanne; Potangaroa, Regan. Earthquake vulnerability of wastewater pumping stations in New Zealand. Paper presented at the 2010 Construction, Building and Real Estate Research Conference of the Royal Institution of Chartered Surveyors, Paris, 2010. • Kenichi Fukushima, Katsuya Kinoshita, Toshimitu Watanabe, Takashi Masuta. Investigation and forecast earthquake damage for sewerage systems, Japan Institute of Wastewater Engineering Technology, Japan, 2006. If you have any questions regarding this matter, please do not hesitate me at (949) 645-2422. o Q�flF ESS 1py q Sincerely, No.2187 m s Exp,3-30-13 OF Jerry W. Tucker Structural Engineer (S.E. #2187, Exp. 9/30/13) Page 15 Costa Mesa Sanitary District Waste Water Pumping Stations - Seismic Study APPENDIX A -- PumpStation Data Matrix Site Class D Site Station # Name Latitude Longitude Ss S1 SIDS SDI 1 14 California Street 33.6923 -117.9335 1.631 0.579 1.087 0.579 2 2 Gisler Ave. 33.6871 -117.9376{ 1.651 0.589 1.101 0.589 3 17 Iowa Street 33.6879 -117.9217' 1.634 0.580 1.089 0.580 4 15 South Coast Plaza 33.6908 -117.8895! 1.592 0.560 1.062 0.560 S 1 Mendoza Drive 33.6774 -117.9011 1.638 0.581 1.092 0.581 6 10 Elden Ave. _33.6644 -117.8928. 1.651 0.589 1.100 _0.589 7 11 Irvine 33.6587 -117.8845 1.645 0.587 1.097 0.587 8 12 Santa Ana Ave. 33.6536 -117.8950 1.677 0.602 1.118 0.602 9 13 23rd Street 33.6461 -117.8935 1.699 0.613 1.132 0.613 10 21 21st Street 33.6488 -117.9107 1.721 0.625 1.147 0.625 11 20 Corporation Yard 33.6579 -117.9320 1.733 0.634 1.156 0.634 12 4 Harbor Blvd. 33.6523 -117.9199 1.728 0.630 1.152 0.630 13 9 Victoria St. 33.6527 -117.9217 1.730 0.631 1.153 0.631 14 16 19th Street 33.6432 -117.9431 1.791 0.666 1.194 0.666 Page 16 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study ,�. +/Ap'IXIIWS&'Fp �yp� I AA [rw.wRCIA79 �p�d�-waCi ry MJ Ili � ,IjI'ry� i Pago ,r ffi7i) C Pump Station CMSU Active OCSD Active K,l Private Ahandanec! OMSU Boundary Mik, Page 17 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study !H 11 API)ENDIX, C — Lique,f,-cic,,tiol�l : azard ap "Jjlu� •A qB V v I lip, go 67— F e. 2 ;:i F1i IL 'OF -F-T 4p BFI Lam'J IF IL v Lw. IN T- v E� q 7A j j ........�,; Oi4 FX ly,I e 7. YN" A A A� Ilk W4,4 ;Ly. 3_� N OF, tit Page 18 Costa Mesa Sanitary District Waste Water Pumping Stations - Seismic Study APPEMDIX D Geofirim III° ,ec n! 'irTie 'ida�t4lolis 801 Glannoyro 5t_* Suited t`. o i-agL a teach a CA 92651 (949) 494-2122'- FAX (949) 497-270 July 6, 2011 Jerry Tucker&Associates, Inc. Project No: 71948-00 466 Flower Street Report No: 11-6951 Costa Mesa, California 92627 Attention: Mr. Jerry Tucker, SE, SECB, Architect Subject: Geotechnical and Seismic Design Criteria CMSD Pump Station Evaluations City of Costa Mesa, California Dear Mr. Tucker; This letter presents geotechnical and seismic design criteria for the evaluation of the sanitary pump stations located throughout the City of Costa Mesa, California. The requested criteria are outlined in the RFP from your office dated June 1, 2011. The geotechnical design criteria are based on the 2010 California Building Code, Table 1610.1, for standard, medium and highly expansive soils. Both active and at-rest equivalent fluid pressures are provided. The peak ground accelerations for 2% probability of exceedance in 50 years, 5% probability of exceedance in 50 years, and 10% probability of exceedance in 50 years arc obtained from USGS Seismic Hazard Curves and Uniform Hazard Response Spectra utilizing the 2002 CGS Fault Data Set, and the design seismic loading for stiff/rigid retaining structures is based on recent research by Professor Sitar at the University of California, Berkeley. Lateral Soil Loading(Equivalent Fluid Pressure) Active pressure At-rest pressure Standard soils 30 pcf 60 pcf Medium expansive soils 45 pcf 60 pcf Highly expansive soils 60 pcf 100 pcf PGA for CMSD Pum12 5tations Probability of Exceedance Station General Location in 50 yrs (g) 2% 5% 10% #t4 north 0.69 0.48 0.35 #1 1 cast 0.70 0.49 0.36 #13 south 0.72 0.51 0.36 #16 west 0.77 0.53 0.38 avg 0.71 0.50 0.36 Page 19 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study July 6, 2011 Proposal No: 11 6951 Report No: 11 6951 Page No: 2 Incremental Seismic Design Loading (Equivalent Fluid Pressure) 2% in 50 years 5% in 50 years 10% in 50 years 50 pcf 35 pcf 25 pcf The incrcmental seismic loading is applied at 113 H,where H is the height of the wall. It is noted that the seismic loading valucs are based on recent research on medium dense dry sands, and it is expected that stiff clay soils will have lower values. Research is ongoing, and results may be available late this year. LIMITATIONS Our work has been conducted in accordance with generally accepted practice in the engineering geologic and soils engineering field. No further warranty is offered or implied, Thank you for this opportunity to be of service. If you have any questions, please contact this office. Respectfully submitted, GEOFIRM rKEVIN �'� AZ z-``s H A. 'F TRIGG ,'Z NO 1618 I�fD. /7/ ERTIFIED FGINEERING S GEOLOGIST � �T ems' Kevin A. Trigg, R.G. 1, CI ° A��F � Hannes H. Richter, P.E. 1: 71 Grief Engineering Geologist E.G. 1619 Chief Geotechnical Engincer, G. Registration Expires 12/31/12 Registration Expires 3131112 KAT:HHR:fp Distribution: Addressee (5) Page 20 APPENDIX E Photographs Station #1 Mendoza Drive. - Location #5 m0 ui m✓i � Nil / f a Ipm a�a d� // /%gyp pgllI� 6 I'm Vi /I/i iu'u` „r 66 Flower Street, Costa Mesa, CA 92627 (949) 645-2422 Fax: (866) 928-2249 e-mail: tuckerjw @JTAeng,com Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #2 Gisler Ave. -Location #2 f � P I i � d 011lll ,. �n YI"iyry• poi � r 1/i %rai i ti%/�// w r f/ii� ,a%//��f �j; �� ,ems I;''' I' �%/' ✓f r 1 ��r/ V� I � �, r ril Vrrri�IlJl� �� ✓, � �, � �" �Jll 'ur r Page 22 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #4 Harbor Blvd. - Location #12 � ... /K J� gg/ i ✓,r", /iii ,�� / „�/i%//,%��j��i' �0�/err a" j iii%�� /%/s ,l aia;,rr/�r!/��✓o!i /ii ,%!lilt%oi�l�//� i rr IR uuuu vbj c h irr um III r, 1 � goy��„ �� F..., /,, oar,✓�. r,r�l ,� �., � �°Q��r/r% rr /� r� o I �ir,^bt., %�11G✓a, „ a. „„� � �� j�1��F1��'/m i �. �r�i�/� Page 23 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #9 Victoria Street - Location #13 a�r " , • � � ,aye � 1�� ., IRAN (1011"p sic. r r p � r , WRIUM r> vl i� jfyi,� �*�i�/l� �� ,o,, � ��..�;�W ��"�yY n'�J �J��, i� ��r� '( iii 17° '�+w3Nlw'✓� f1�liY' r�'��ri�i1'1��"I/'�' i y tlIV, Page 24 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #10 Elden Ave. - rotation # h i IJ p� firm V � t 9 r 1, i lob, 7r it ... �,;& r ipor off, l r /i r r i Page 25 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #11 Irvine Ave. - Location #7 J r Y _ % P 1 VIII ," J jr n m �ka I Q1i�V0 �o ly'iii 6J r I rvfrr/�//� g i r'r/ IIrrk� 1 � N A",` " ��✓�I `I %��I��i a�l/` � "� �' � �t r' n, w Page 26 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study StatUort #1,2 Santa Ana Ave. - Location #8 Y � ou> �iC y � r i ^ /I / irri �i ,�. a iiu(uBm....n aui or n" �, �/i1f% � �i„" ��` /;�il i 4 uuuuuuuuumumuuui iu ml�li . . IF hy i „ J� ��; r ir% ii �iilYlb� N J yJ1 lY )JS�P SN t r �Y i f, 1 / Page 27 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #13 23rd Street - Location #9 IA v , V n t d; iii i orr / r r i � rielFYVnI'WJ��fli:W/JN /,' i r�r+ f t/i f r1 4, i /ii r ��/�� „ �f% � >� Pl � GJ IId/i i��:, //Ir,. / l'r/,(,;,•. mr � m; fl'NV��111A�!INlui la�?IYNlf,�'P 9..9ivr., � .. s. w;,,�!,,�rurn'llYrauwrrd¢��iu� -m�ulslyrf ��j( tl � VIN J ,. omm lam- �:�wuw`+"Bn 4W1wu^-� /di/rig I " 11141 fog Page 28 Costa Mesa Sanitary District Waste Water Pumping Stations -- Seismic Study Station #14 California Street - Location #1 r/we / / % % / , «�� // l iiG//low /' / i a r All /µ / pia yr� °%„ / %l d ^ I JIM ,�� y m a✓, u l/i // ,f r i / i fi m, "'"H y2✓^��Il�/i J �l'pi# /l�ff�/ /�v rID«1J � N Id r / 1 %ll' 11 �4i�llir/ 61✓ 11 nni(«door ry� o/�i/ 9�, / �� , r All %p 1'i M irr�w Mwrw u Mll f �I 10 I u Page 29 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #15 South Coast Plaza - Location #4 k, 9 UlJ v ' fyJ 9 « P/'�i%1/ i s � � f � 117�� ( �/11� rY �r f� �,r,'l,//lr%��/l/iGif��//l/�I"✓,�/� ,,/�, , , �t„�o,/,- fob ,,yl�i�N�J,,, ,�� ,ry;wryr�gro�NVllW wmfiguDY'/ '�➢14��1' ..... „ ' !J/uu9N;1PP 1Y"s'ON�YMi'I' d, OrN e ° I M Y i ��IIIIIIIII+� i 1 i'q it A f �! y r.!t ,g .�, � i t f; ✓ ”. rM i fit.,, i f, I o, l' ��/a��,�r�%r! rri /r,r/r�ri��✓r/ /r� w iw� mr"r �(rw:�r 4 � 0i�o!11p /II a f 1 � Page 30 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #2 Gisler Ave. Location #2 y ro , ro, r pJry��J i ! ^ r �IlVulmuuuuuu i VIII �II I . uuuumm l� w 1 �� 0 1 � it I � � Q,�,• � �"� :�� / �� ,a r u r, � li vv�ra gun r• �,� r/ �� . /� �ryN��g9y1 r � �-� r" III �.�II i✓rnf�r,,�,, ' ��/�vr�rt lr�r9% /! �d��hl��,,ritt"",� p G 0"9fw UN I If�➢�i�r r��kV '.r r i`� ,a r,,H' r ,,,,r �a, r f „ �rf '✓4/r r / {� ' j°� �/�' r �r� �r ;,r r � At V r li u lr✓ u r it a+�/m��)�ro l?F�, ,.. r � y r/a ,✓ r,,,r I i r y,r h i r,,,J�°rJb�rr�r✓i/ 1J;p,' °�1.,�/lrPiv� J /�� i !r ;��i�� r ! �� ' a%�',v,� �-0 rql rr✓i!%,IQ f 1 0';. �n!rr % ,e1.�Y�,kf.,.w1 � �i�r/rif�'//��l�r ;r,,..:�r� � ��!p� o ��„ � ,;q/ r/rr r: r",}4r�%� � / rr, � r%. / / ,/✓��1 k�� /,/r�i 1�,,,; p � 'r�;; r/r; n /iG� r,� al�1r,(��r�) � /�;! �'i�l� ��U�//,�;;�EI r/r/„ „iA� �' >�.%i/':✓r,�. ,�/!' rr/�,/%�'�!y �"hr,I Y��;y 1 r or � %%/.r if�'�lr//� 'Po v, r Ir �'i ,. �/// /,f%/%�/„/./%�/ ✓ � ,. /,..,/�/� f %%"' /, � 1. r '�,, a/ A// r.�. ti rx fl//..� ,�/,rh r'• � l�r IJ ✓�i /fir//I/„� /r / 0 � ,, ✓�„� '�r,V�°'«r r�a�:� V v�?�,J��1,i ,. ��".. r�r�/��(i%l�i///,�,ri� ;,,,, /r,,,,,, ,�,a✓,, / �rrt��f�ir J 9�//�I�Yq..;�9;c' ,."'/�� 'ri;,IY, 1V;/�l �� „r, '�,,l j;�r 'oJ. �(l�f/ ��f l��i,;, r=. J!/ ;' /r „ ., ,✓ c�/�/�-/��4'r 19.�i)'�, ,u ,,, r rr r r J n a' r r �!� W r.r a /r r r lR/d%%r/ii/ / Page 31 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Y Station #17 Iowa street - Location #3 pd��fl'r i „elf r , Z40 VOLTS r�91�", i ll I ry/ J f/� �ll %rr��i%D��/� r// / r r� //r✓r /�// / .0 12 ii rr jJr//%�1 i Awxilil'll r/ 4 k� r / wr,. oou� I u -✓h rl� i Page 32 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #20 Corporation Yard - Location #11 u� Gwm � I y op ° / y // ri%rr r✓ r r r y �I�/i/%�y 11✓��rr%/�'��j�////%� y „c /j'/�''� / //��/Y ,r ��„1� /. ,@ f IV�� i�i�; ,ro'�1/ , u ,r "J,/ n ��r'%�i//%/l,//pi%�//J,� //�r✓ j�j%��/ii,o //%/'% /'��i��ii%i�r, - �� .�/// '%��fi��/��i�r f//lJ�,��////i/j��l�/�/��"✓/o fr��//l,,,vlror ii��i//r i��/�'i<� �� r✓J�?�y m /� L. E .. / ,: r �li'/i//� JLI;O �rr�j /I r 111'r !� 'IV7 �G�J�iI�➢�JII�l�1�Gt�/�1��4�i�Ull"�u �2/>ar�r�% � �' n�!'Jy'�11J�� , I 0 .Jlf yi / /% iii% ➢1y a,/i /j/ ( P rl f ///ppp I , ��/ ,/ r i//l�/�� r� r:,6➢ J) Jy�� ,.,0 >f/ i ;'/// / IV IRS /i�'i,�r�;, � r �, r ,/ ��- 1 ✓, �/ G r'�i'�f"� /��. .„,.t OO Page 33 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Station #21 21st Street - Locating #10 ��%/%/�/ �� ✓ it '�� r/ ri %';�,' r r ""i ��.� r %//�� ,,,' ,,, ' l✓ /n a %„ � r0 � i � � r � /ir'/ I r, 1 // IuY�k Illmp Illllllii�iiiiili�i�iii�mouuuu '�� '/ ' 11 r r r a 'F r /J ,VA "'(RP i yr Page 34 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study APPENDIX F — Typical Forilate Element Analysis 2 X f � Sze P--:y P'51% `r p im,. PM a 0 If a IE 1 1 �w pm x l FOOD >I* f � idC k✓7 >3 rY , ,� O P I P PAN, r i w �x ue Page 35 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study z X -�l^�Br INaY�N —L ?, fW -.IXBF`N>N ............... tii � „AS p% 1,H Page 36 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Z X m r F w l q MEW„ m � iz�. Page 37 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study NP 137 ID1 725 -IeE y 9 1 � � i i i r, r I y II � , r I �J a Page 38 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Lill" P1� �e�rk Anil�Iq 33. ti ,.373 137 ISYf ••tYie w k „ f{ 1 � � r i u� t D I I r Page 39 Costa Mesa Sanitary District Waste Water Pumping Stations -- Seismic Study z x VN � � u �m o, v 'nV rvr G30 A 2,3 ME r � Page 40 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study ti z x 1.4. If � i 1 �m I I ` y A nun u " Page 41 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study Pbb la!Ewr L rs iea a. UI hu •, w � i i i i I r i r r 4 f° V Page 42 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study U-1 WWI m !M9 Z X Jc9 O, ED, I �9 r ! q 4 q AZ 1 r n, 7 dy Page 43 Costa Mesa Sanitary District Waste Water Pumping Stations — Seismic Study T rsam�F,�t x �'IyC��VC11 hae�..A 193 W4 -1 eF qy M � a a^ �r �d 4 / I r �� t � � I I�✓ 30 �1 ry P Ai "'a^ cur nr Ldp",W ^I Page 44 MtR,LDn Q I# ��I�f^��mrr�rbgr IV. C SV.:l (ML;" s,� ,I, V. ,#�11/7 ok Minutes Meeting held Wednesday October 19, 2011, 11:00 a.m., at the South Coast Plaza Management Office between South Coast Plaza (SCP) and the Costa Mesa Sanitary District (CMSD). Attendees: David Grant, SCP Kevin Holcomb, SCP Scott Carroll, CMSD Rob Hamers, CMSD Jim Kolk, EEC Bob Ooten, CMSD Board President The attendees first met on February 7, 2011 to discuss dissolved sulfide levels and hydrogen sulfide odor issues stemming from the restaurants at the Plaza and the effect on the CMSD South Coast Plaza Pumping Station, Dissolved Sulfide Levels Mr. Kolk from EEC distributed a chart noting the dissolved sulfide levels at various Plaza restaurants while also noting Capital Grille/Seasons 52 and Z'Tejas are the only restaurants whose interceptors are being treated with Golden Bell's Golden Bio. Capital Grille/Seasons 52 show positive results of 3 mg/L or less of dissolved sulfides over the period of May 16, 2011 to September 12, 2011. Z'Tejas was unable to be tested on September 12, 2011, and the remaining restaurants had dissolved sulfide levels from 0.5-10mg/L (10mg/L is the maximum level read by the instrument.) The CMSD allowed maximum is 0.5 mg/L and levels at 1 mg/L begin to create odor issues. 011fl ° dw"oplI ?n,u'nity'dE �reafrfr itmeF the environmeryt 5y Ikro0'viefin iand ari ,sle and,!e"wer �,-offectfo'u 3"er°I ices. NV IVYIP.C-MSdca.g'ov After discussion, the group recommended continued testing to obtain sufficient data to arrive at a conclusion prior to contacting the restaurants and enforcing the CMSD maximum of 0.5 mg/L of dissolved sulfides. The Costa Mesa Sanitary District will propose a testing program in order to establish whether additives work to lower dissolved sulfide levels. Although not shown on the chart, Mr. Holcomb stated Z'Tejas had a dissolved sulfide level significantly higher six months or so prior when Golden Bell additives were first introduced. Mr. Kolk and Mr. Holcomb will determine the interceptor pumping dates in order to perform dissolved sulfide testing at a predetermined time after each pump out. Mr. Kolk will submit the proposed testing program to Mr. Carroll for approval. Other Additives and Chemicals In addition to Golden Bell's Golden Bio additive, the Plaza has recently begun using Chemsearch's Bio Amp, a similar acting bacteria. Mr. Carroll also stated the District is pilot testing Bio-Organic Catalyst, of which the manufacturers attest will remove virtually all dissolved sulfides. The test program is currently being implemented and Mr. Carroll will propose the catalyst be used at the Plaza if it is successful at the District's test. Electrical Power at the CMSD South Coast Plaza Pumping Station Mr. Carroll requested Mr. Grant and the Plaza consider purchasing a standby diesel generator for the Costa Mesa Sanitary District South Coast Plaza pumping station in order to provide power to the station in the event a long outage occurs, similar to the recent outage in San Diego County. Per prior agreement between the Plaza and Costa Mesa Sanitary District, the Costa Mesa Sanitary District took over ownership, operation and maintenance of the pumping station while the Plaza assumed responsibly for providing electricity. Mr. Carroll offered to have Costa Mesa Sanitary District forces maintain and provide fuel to the generator. Mr. Carroll will email Mr. Grant the specifics of Trotecti g our community's iieajW and tfie eavinnii ens: 6y providing solid waste and si<rver cof(ection services. www,crnsdca.,gov the pumps and electrical components in the pump station to allow Mr. Grant to obtain additional estimates. Additional Discussion Another method to decrease dissolved sulfides from becoming airborne is to submerge the incoming line below the water level to avoid turbulence. Mr. Hamers will determine if this is feasible at the South Coast Plaza station. Mr. Holcomb also noted the Plaza increased the GMSD pumping station air vent height at the 5th level of the south parking garage. The Plaza also repositioned the blower to be more effective. A follow-up meeting will be scheduled after additional dissolved sulfide testing is completed and conclusions can be reached on the effectiveness of the additives. Protecting our cun�ni u,1 4y's 6eafth and the environment by providing ,sofa %,Pa.,, te and spiver coffection services. Attachment B PRICING QUOTE i ,1 Vendor/Contractor Use for Purchases >$5,000 #1 #2 #3 Company Name: Schuler Engineering Jamison Nikola Corp. Engineering Corporation 17197 Newhope 18012 Cowan, 564 W. Bateman Street, Suite J, Suite 290, Location: Circle Fountain Valley, CA Irvine, Corona, CA 92880 92708 92614 Phone: 951-738-9215 714-620-5048 949-752-1900 Contact: Bruce Schuler Don Jamison Johnny Klichan Date Contacted: October 2011 October 2011 October 2011 Qty Product/'Service Price Replace existing wet well doors at Victoria Pumping Station with District supplied H-20 1 aluminum single leaf door. CMSD Project#164 $8,723 $10,440. $5,100. VENDOR/CONTRACTOR RECOMMENDED: Nikola Corporation SupplieslEguipment--If the low bidder is not recommended, give reason(s) below: Services --Attach a summary of qualifications of person/company selected. Authorized Signature bate General Manager Signature bate 11108/11 vll. 1 I ► 1 Ell A I E[,,J,G 0 0, III E R V 4 G C Costa Mesa Sanitary District PROPOSAL Victoria Pump Station Hatch Door Replacement 1. Replace existing wet well doors with District supplied H-20 aluminum single leaf Match door over pump station. Excludes any interior lining or Sancon coating. TOTAL.......... .................. ..........$ 5,100.00 LS 18012 COWAN,SUITE 290, IRVINE CA 92614 (949)7521900--FAX(949)752-1910 chu,ler engineering corp. 564 W. Bateman Circle 43 Corona, CA 92880-2011 (951) 738-9215 Fax: (951) 73M162 Contractors License No. 389852 October 12, 2011 Costa Mesa Sanitary District 628 West 19th Street Costa Mesa, CA 92627 Attention: Rob Hammers Reference: Victoria Pump Station Subject: Quotation for Replacing Access Door Gentlemen, We have prepared a proposal to replace the access door at the referenced pump station. This proposal is based on the following assumptions and scope of work: 1) The District is furnishing the replacement door from ITT. 2) The new door will be installed using poured in place ring of high strength grout or ready mix concrete at our option 3) We have not included installing a protective coating on our grout ring. The last 15" of the existing shaft (which includes the access door) appears to have a sprayed on coating. This coating has deteriorated and will have to be replaced at some point in time. The cost to mobilize Sancon for such a small amount is high and the cost would be better served when done in conjunction With several other repairs. 4) We have not included any permit fees as this is an emergency repair. Lump Sum Amount $8,723.00 Res' tfu l ly, Bruce A. c President Quote# 01907 October 10, 2011 TO: Costa Mesa Sanitary District ATTENTION: Rob Hamers REFERENCE: Victoria Street Pump Station Cover Replacement Dear Rob, We propose to do the following for the price of Ten Thousand Four Hundred Forty Dollars and 001100 ($ 10,440.00), including all applicable taxes: Labor, materials and equipment to remove existing pump station frame and cover located at the end of Miner Street. JEC will then install the new frame and cover supplied by the Costa Mesa Sanitary District. JEC will repair the coating after installation is complete • NOTE: Price does not include and permits or fees. We appreciate the opportunity of presenting this quotation. It will remain firm for thirty days. If you have any questions, please call me on my cell (714) 620-5048. Respectfully, Dianne Charrette for Don Jamison President DJ/dc r err G/r r r"r ��✓�!0 /9i,'�//� / r X14 ��r lI,/��,✓fi/,!i�//ii rte/ i - I ti 7A 1 oo m a✓o a%i, v G mm r I I ; I try / , ��///'r T u �i�llrfif� �a , ""'LICK I d i��l I f0V keyw0rdS,peopie,iocabons,obituariin�, Weli ID and rrnre AMY J�11 Home News 1 Weather Sports E Entertainment Travel Interact lobs I Autos Real Estate itentals Classified Ads Shop Farm, TasUc" Zariy Fr all cwperaqe Magic Mabarna,L,SU fans C:rowel" Vito 8 t160 Top Cft C11assic aiaw�, Stories unite few Guq A ilicririiop.> a�,oikPnq News frarn Tfte WmOngil!lawl,w News > Breaking purfoeg Jefferson County officials say Birmingham City Council unrealistic about sewer rates Published:Thursday, October 27,2011,8:30 AM BEST LOCAL TONOBS A Precision Millwrights F3 Mobile,AL-GA West kk vy C 0 t g E-� Drivers 77 0 Lq Birmingham,Alabama-EXPRESS COURIER LPN I,RN I,RN 11,Planning and Quality Jefferson County officia{s said Wednesday the Birmingham City Council is Assuran being unrealistic in its fight against an increase in county sewer rates. See all Top/Featured Jobs The Best Local Jobs F "I can't really see good that can come from that," County Commissioner in print and ahlinO Jimmie Stephens said. "I understand the council's frustration. We share that frustration, but they haven't been a part of the settlement agreement." More Breaking News from The Birmingham News Lawyers for the County Commission and sewer system creditors are working on an agreement, Most Comments Most Recent approved in concept last month, to settle the county's $3,14 billion sewer debt. The agreement could Breaking News from The Birmingham increase sewer rates as much as 8.2 percent a year for three years and no more than 3,25 percent a News stories Mth the most comments In year afterward. the last 7 days. q Adabakna iinitnigram)Pon taw �UAF,� The City Council on Tuesday unanimously approved a resolution denouncing any plan to settie the j 5bude rrts petirion uslks ii(anqe county's multibillion-doilar sewer debt that includes rate increases. The document also declares that Wel't 40&J"'Oohik out inw, the council would "fully investigate, explore, and exhaust every legal means, in or out of court, to t, 0 200"PIUS jvbilessl se�ek tainm /_ protect the citizens of Birmingham from further unaffordable, unjustified, and excessive sewer rates." Ciellabytties afire naming to 2 81-unningharn for the Pgagfir ic".4,$, The city will spend up to $10,000 to hire retired federal Judge U.W. Clemon and his firm -- White, Arnold and Dowd -- to investigate legal strategies. lwDV,i%.,mn 4s 4W1n1kgraVcxr1 iovo unco,umSbtutic,tinaii in pernding "That's not my idea of working together," Commissioner Joe Knight said. "I can't control what they Nauwsuft% do. It's not like we want to have a sewer rate increase. We don't go to commission meetings and StaA.e Urayuor,wwarulr Prr Ihmk ck say, 'let's up the rates."' i'W11HH, Gov, Rob Rik y rrraPrrP test flyinq hr� biling,111,u P all Commissioner George Bowman said the council should be "applauded for standing up for the citizens of Birmingham, "If you recall, that's been my position all along that the rates not go up at all," Bowman said. "I've said my position was zero rate increases and I am glad they are also are looking to stop any rates increases as well." County officials say the agreement with creditors would avoid double-digit rate increases proposed by the court-appointed sewer system receiver. County leaders announced recently that rates will increase in December, although the percentage of the increase has yet to be determined. q �j`' t� rv"liai �t t'h as )t �bt/r,,ig l�di �� „,aF rA, „(r to 1 d ��a� '..., Commission President David Carrington said City Council President Roderick Royal has already tried �,i �- % to intervene in the sewer case and was unsuccessful of, "He tried to get recognized by the court, and he was turned down," Carrington said. "Basically, onlyr1 Sri " Attorney General (Luther) Strange was recognized as having standing" to intervene in the case. If r��alap pia rti the council attempted to intervene, "my guess is that would be the same ruling of the judge. But that's their decision," he said. 1111iliil '1111 p' State Circuit Judge Albert Johnson this summer granted Strange's motion to intervene on behalf of sewer customers in matters involving the Jefferson County sewer debt crisis but denied motions filed on behalf of more than a dozen other ratepayers, including Royal. Most Active Users r®rhal s r.tlrk? Stephens said the commission is working on an agreement that benefits all county residents. Users with the most al.cotn comments In the last 7 days "Although many affected are city of Birmingham residents, they are also county residents, and we will treat those the same as we will everyone else throughout the county," Stephens said. "It doesn't 0 Rush ma make a difference where they live; we are trying to configure the best arrangement for all the citizens of Jefferson County.' 2 1 Creole rfineae i Join the conversation by clicking to comment or email Wright of lrrr r tl�dNtli_ itlltl�kw rerMirwaun u_^rual�rm. W lerritrrri, trttle:rreerm Related topics: h`-••`fii_rso r tl1;oilNrutµa''fw,:u.nirrwVr"tlu��u?Vrmr'6tti ,.,Ira ' b � br�; +'p'" Jtg Sponsored Links Y tldeplriden0 t trail@) - Official Site 3 r,ree Mos Immil' f), Onemax &Starz! Packages Start at$19,99/mo for lyr, r a:rn Users We Love t WSVS t some Change Stock Mobile Dating Stock.Exploding View Ticker and Invest Today gar ties Fier wil0rigness to make her profile a .�z window to her other online activity 9 Car lnsi wli-ance ririr la, shows that she stands behind what I discovered the 1 car insurance trick your agent will NEVER tell you. she posts. ',':� ti0'a„',➢;.>,f.,..p-�rP la�bC�+�ire mare Users We IO.:rsve RE/llSAX Re,M' Estate Agents Search for Real Estate Agents. 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't r orntt Inavm7its a, YY ,era%ar October 27,2011 at8:A8A'4 Paying 1�04k to a mediocre former retired judge is the height of hypocrisy and a total waste of JanelJackson Pranu Chuck Parsons <chuck@sonconzmm~ Sent: Thursday, October l]' 2OlI7:51AM To- Jane|Jacksnn Subject Manhole Rehabilitation Pictures Attachments: lMG_0004.]PG;lk4G_0005JPG;IK4G_0006JPG;IMG_0007JPG,*lMG_0008JPG Jane[ Our foreman asked me to forward copies of the completed manholes to you for your records. Please feel free to call rne with any questions. Regards, r') :f&N � E RING INC Chuck Pc3rsons (714) 891-2323 5841 ENGNEER DRIVE 1,80D) 726-2664 HUNTINGTON KACH, CA 92649 Fax:Q14) 891-2524 C014R- UC-731797 Cel: (714) 231-3630 chuckgsancon.com II r Irk iridl/� ,� riir 4r i/ r/iob /�� r r ids rf r� r r Ko r � MM r� i � w0 / l Jr/ // j „ rr r p 9 it i i aJ/ r 4 i ' l „ ui dI r^ �f AN i r f fl � l i ilia /, , : � //i / ✓a „iii i-Q.. .. 1ipfG„�uft%�%�� ,aiJJl/i!�iu�//ioilJif r /� � r r. r 1 ofi�/ oir % U, r nr r JF l' r G, mot-,,