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HomeMy WebLinkAbout2012-12-11 - Agendas P WATER/SEWER/SOLID WASTE COMMITTEE AGENDA le "aye eVl� MEETING DATE OF DECEMBER 11, 2012 1 THE CITY OF FAYETTEVILLE,ARKANSAS Committee: Chairperson Sarah Lewis, Aldermen: Adella Gray, Mark Kinion, Justin Tennant Copy to: Mayor Lioneld Jordan, Sondra Smith, Don Marr, Paul Becker Lindsley Smith, Jeremy Pate, Chns Brown, Lynn Hyke, Shannon Jonas, Piw;2e, I, Tim Nyantler, CH2M Hill, Allison Huskey From: David Jurgens, R E, Utilities Director A Fayetteville Water, Sewer and SOlid Waste LoI eating will be held on December 11, 2012, 415 PM, following the City Council Agenda Sessionin Fayetteville City Hall. Proposed topics include'. Agenda Items Requiring Committee Approval 1. Nutrient Management Agreement with Beaver Water District pertaining to protection of and nutrient reduction in the Beaver Lake Watershed is attached. Because it is the sole source of drinking water for Northwest Arkansas, the City and BWD recognize that protecting the water quality in Beaver Lake Is extremely Important Recognizing that there are both point and nonpoint nutrient sources within the watershed, both parties agree that there are substantial opportunities to protect Beaver Lake through nonpoint source pollution reduction projects. In 2006, the City and BWD entered Into an agreement whereby both comes committed to actions aimed at achieving a net reduction of the Total Phosphorus (TP) load Into the Lake. A few of the City's projects are below: i Hired a consultant to develop a Nutrient Reduction Plan; v Developed streambank protection and Low Impact Development ordinances: Y Maintained annual wastewater discharge phosphorus loadings to below 0.5 parts per million (ppm), Restored several river and stream banks; and ➢ Executed extensive public education The City's National Pollutant Discharge Elimination System (NPDES) discharge permit for the Noland Wastewater Treatment Facility (WWTF) allows a 1.0 ppm TP discharge Into the White River. When we added the West Side W IFF, the total number of pounds we could discharge to the White River almost doubled, because our total allowable discharge volume increased from 12.6 million gallons per day Inge) to 21.2 mold. BWD objected, requesting the TP limit be reduced to 0.5 ppm, but withdrew their objections when we entered Into this shared agreement, as the actions performed would create a much larger reduction of TP Into the watershed than would the more restrictive, and much more expensive, NPDES permit limit. The benefits— both financial and environmental —of the work performed relating to the first agreement are substantial, and City Administration Intends to continue these We efforts. The partnership between BWD and the City further Increased the benefits many of these projects were joint efforts. As the City's NPDES discharge permit is now being renewed, BWD also recognized the benefits, and requested the City enter a similar second agreement. While significant progress has been made, many opportunities remain to reduce the nutrient loading to the White River. This agreement is less restrictive than the 2006 agreement, but continues nonpoint source water quality improvements as well as restricting the annual wastewater discharge phosphoms loadings to below 0.5 ppm. STAFF REQUESTS THISBE FORWARDED TO THE CITY COUNCIL. 2. Standard Water and Sewer Specifications. New design standards for the water storage, pumping and distribution and wastewater collection systems, including sewer pipes and pump stations, are In a separate attachment These will be available to engineers and developers to give them clear design criteria before they begin designing and collection system projects that will ultimately be owned by the City. The standards apply to projects by developers, City contracted work, and In-house City projects, and make the requirements among the three consistent This document combines and makes very minor updates to the sewer specifications adopted in 2011, but makes a number of technical updates to the water specifications, which were last published in 2001. The document was very thoroughly staffed among area engineers, engineering stag, and field staff. The Arkansas Department of Health has reviewed and approved the specifications. The most significant changes are shown below. n Standard details are Included for both water and sewer. wuen saver and Salle Wzx rumor.Agenda Wqa ago a rico CalNNlacadrada t rods WATER/SEWER/SOLID WASTE COMMITTEE AGENDA MEETING DATE OF DECEMBER 11, 2012 ➢ Full-time inspection of the work. Arkansas Code '§22.9.101. Observation by registered professionals required. (a) Neither the state net any township, county, municipality, village, or other political subdivision of the Nate shall engage in the capital improvement of any public works involving engineering or architecture for which the plans, specifications, and estimates have not been made by and the capital improvement executed under the observation of a registered professional engineer or architect, in their respective areas of expertise, who are licensed to practice under the laws of Arkansas' Every Arkansas Department of Health project approval letter states '[Engineer] shall provide construction inspection services° This was included in the most recent sewer specification, but has not been in the water specifications. i Stormwater and sediment control standards meet all current requirements for all organizations perform ing work on water and wastewater functions. S Contractor payment for water The City will bill contractors for all water used in the installation, flushing, and testing of water lines. Previously, the City billed for testing water, but not for water used for Flushing water lines before putting them into service. STAFF REQUESTS THIS BE APPROVED BY THE COMMITTEE. Agenda Items for Committee Information 3. a rose. ( Update Contract red in Contractor Cwsl Complete CIPPT Swr Rehab-Cured in Place Pie RE ay random $ 3g EPA 9% Swr ReM1ab-Cured in Place Pi eSE Fa IncyCon 14,9 EPAroyal265 Awv1RosaWater6' Wtr Line Ht 265 Gwar Const $ 4,989,4812 1900%H 16 Ave o SedlSRelocations odwin &ds Const $ 1569,462 80%Gadand Ave Wafer/Sewer Relocations Sevan io Gwdwin 1,575L497 80%H 265 N /Slions SevenValle Const $ 1,368378 011% Solitl Waste Com w[SIab, PM1ase1 Benchmark Const $ 096569 100.9° ful Waste Com gsl Slab PM1ase2 benchmark Const $ 335230 Elkins Gravi h,Sewer Outfall Llne Rpsetla Const $ 692,223 190.9% Protect is substantially complete, meaning the work can be used to execute its mission. 4. Change Order 1 with Rosetta Construction for a deduction of $45,499.51, for the completion of Elkins Outfall Gravity Sewer Improvements, Bid 12-16, Is attached. The contract with Rosetta Construction, LLC replaced approximately 4,450 feet of sewer line and 28 manholes, and serves as the gravity ouffall from the Elkins sewer force main. The work was completed on time and $45,500 below the original total bid price of $692,223. Remaining funds within the project will be used to fund a Cured in Place Pipe project that will be bid out early next year. 5. Class 3 - 7 Plastics Recycling Pilot Program discussion. Staff is working with Waste Management on an initial trial basis, as they have stated they would accept our plastics and would properly certify their ultimate destination and use. 6. Annual But West Cl n are wmd6ksd: 2012 results are shown below. mm Data True Metal Total (Tons) (Tons) 1Toru1 4 3424/2012 35.57 964M218 1 4/1962012 21.]5 343 3 4912012 3136 4.25 z fif61za12 39]6 11.761 1002012 16M 5074 'MW2012 1704 2.373 11110/2012 2327 3A02 11/17/2012 1539 2.53 TOTAL 141.64 as 76 228.28 wM,Faur ,al tied wz4 Canner aredz RN,2 azo Wsw cm,vxueeAtwiJn n uaiz WATER/SEWER/SOLID WASTE COMMITTEE AGENDA MEETING DATE OF DECEMBER 11, 2012 T. White River Use Attainability Analysis Initial report was submitted to the Arkansas Department of Environmental Quality (ADEQ) August 27, with a courtesy copy provided to Beaver Water District. The report identifies that all current designated uses for the White River and Beaver are fully attained, and will continue to be attainable with site specific minerals criteria proposed In the study, shown below. These proposed criteria changes would only apply to a specific reach of the White River, there are no proposed changes to any Beaver Lake criteria. ADEQ comments were received October 22, the City's team responded November 21. Conversation continues. Summary of Existing and Proposed Bite-S ecific Minerals Criteria for the White River Mineral Existing Criteria Vro aetl UAA Criteria Drinking Water Standards ch pride 20 60 250 Sulfate 20 lib 250 TD5 160 440 500 B. Illinois River Phosphorus Evaluation process is continuing, with EPA developing a Total Maximum Daily Load (TMDL) study for the basin. USEPA hosted a public information session at the Jones Center In Springdale November 8, providing a project update. The current timeline is below. The intergovernmental working group, which consists of the five largest Northwest Arkansas Cities and both Pull is evaluating hiring a consultant to oversee this portion of the EPA work to ensure the data and assumptions that go Into the model are valid. Simultaneously, conversation between Arkansas, Oklahoma, and EPA Region 6 representatives at ADEQ and ANRC Director level continues. • Model Calibration Jan/Feb 2013 • Baseline load modeling February/March 2013 • Sensitivityluncertainty analysis Mari 2013 • Peer review April 2013 • P load reduction scenarios modeling April 2013 • Draft TMOL May 2013 Public meetings summer 2013 • Final TMDL Fall 2013 9. Lake Seouovah Dredging Project pilot dredging was begun September 12. The lake contains an estimated 5 billion pounds of sediment that Includes over 3.6 million pounds of total phosphorus. For perspective, the City of Fayetteville's Paul R. Noland wastewater treatment plant is permitted to discharge 93.4 pounds of phosphorus daily and actually discharges less than 29 pounds per day. At these discharge rates the lake holds more than 100 years worth of permitted discharge P and over 500 years of actual discharge P. The sediment removal component of the pilot Lake Seg uoyah dredging project was successfully conducted In late September and early October. Approximately 1 2 million gallons of average 13.7% sedlmentiburry was pumped from the lake via a small contacted dredge and split between a geo-textile bag (geo-tube) and a standard sedimentation basin. While both systems performed well, with approximate capture efficiencies of over 99.5% for bath suspended solids and phosphorus, the sedimentation basin did consistently out perform the geo-tube and was operationally much easier. Final thickening/drying results will not be known for several weeks, but both systems appear to be producing a usable product in a reasonable time frame. The pilot project removed about 138,000 pounds of sediment including almost 900 pounds of phosphorus, which is relatively consistent with previously estimated volumes and percentages. Additional results and recommendations will be forthcoming as the results of this pilot are examined in greater detail and final drying concentrations are determined in the next few months. A copy of the draft Technical Report Is attached. 10. WSIP Project Closure and Savings Transfer. The Wastewater System Improvement Project is being formally closed out. The last payment was made In September, 2012. The balance of funds remaining In the project, approximately $1,520,000, is being moved Into a new project described below. A final construction cost summary (rainbow sheet)will be provided in the next Committee meeting. Wastewater T/eetmeoUWeter Quality Improvements. This project improves water quality in the susam(s) that receive the CiYy's wastewater treatment plant eluent The efforts work maybe reresponse to stricter NPOES permit limits, or may be other work within the watersheds that reduce the impact of nutrients and/or minerals, thus relieving the burden on the wastewater wear,Siv.ar are 81 was,cmnmm Amro,wail 3 azo wssrr co�nw smo uoerlx WATER/SEWER/SOLID WASTE COMMITTEE AGENDA MEETING DATE OF DECEMBER 11, 3013 treatment plants to Improve their effluent quality. Specific projects could include, but are not limited to. replacing filters at the Noland W/i phosphorus removal facilities at either WWlF; minerals reduction efforts of the Noland WWfF) phosphorus/sedimen(removal at Lake Saucepan (by dredging); phospborus/sediment by stream bank restoration on the White River; and other similar projects. If major construction efforts are required-as may be the case for achieving significant improvements in phosphorus reduction at either VW77 or minerals reduction at the Noland Wit this project may only start the facilities planning/design process 11. Next Water/Sewer/Solid Waste Committee Meeting Is Tuesday, January 8, 2013, 5.15 p.m., room 325. Attachments1 Nutrient Management Agreement 2 Standard Water and sewer Specifications (published separately) 4 Change Order 1 with Rosetta Construction 9 Lake Seguoyah Dredging Draft Technical Report was,waw ,18,, ewax Ci Apema Pike 4 a 20 w-s-su C�m�wueAyviJni�ea�3 • CITY COUNCIL AGENDA MEMO aye eville MEETING DATE IIRP DECEMBER 18,21110 THE CITY OF FPYEEVILLE,ARKANSAS To: Fayetteville City Council 'Phos: Mayor Lima torten DanMust,Jur Cs,Utilities p �I From: David Sewer ComerniieDirector�lt`jllVylllult1 WatWSewer Committee Date: November29, 2012 Subject: Agmemantwith the heaver Water Dish its omainingto Formation of and Nutrient Reduction in To Ileaver Lake Watershed RECOMMENDATION City Administration recommends approval of an agreement bktween the City of[say ettevi Ile and Beaver Water District CB WD) pertaining to Tucuman of and nutrient reduction in the Bc emr Lake Watershed. BACKGROUND Because itis (no sole source of drinking water for Northwest Arkansas, the City and B WD recognize that protecting the water quality in heaver Lake is extremely important Recogn]2ing that there are both point and snappier nutrient sources within the watershed, both panics agree met them arc substantial opportunities to protect Beaver Lake through rampant souroe pollution vibration projects. In 2066, the City and FWD entered into an agreement whereby bath panics committed to actions aimed at achieving a net reduction of the Total Phosphorus (TP) load into the Lake. Afew of the Ciry's projects am below: a Hind a retail rain it) develop a Nutrient Reduction Plan; Y Developed streamstak protection and low Impact Development ordinances; b Maintained annual wastewater discharge phosphorus loadings to below 0.5 prod per mi l lion dumb > Restored several river and dreams banks; and Y Fsacuted extensive pub]to ednoation. The City &National Pollutant Discharge Elimination System PEDES) discharge permit for the Noland Wastewater Treatment Facility CWlV1'17) alIowa a1.0 ppm Tl' discharge into the White River. When we added the West Side WWII,, me total number of pounds we could dlsehargc to the White River almost doubled, because our total allowable discharge volume iimeased from 12.6 million gallons put day (mad) to 21.2 mak U WD objected, requesting the TP limit be redroad to 0.5 place, but withdrew their objections when we entered this shared agreement, as Cie actions performed would create a much larger reduction of TP Into the watershed than wcold the more restrictive, and much more expensive,NPDBS permit limit. DISCUSSION The benefi]s- both Imancial and envimnmenml—offhe weak performed relating W the first agreement are substantial,and City Administration intends to continuctli type efforts. the partnership between BWD and the City father increased the benefits; many at these p elcets "cap joint affairs. As the City's NPOYS d]scha,ge permit is ,w being renewed, BWD also recognized the benefits, and requested the City enter a similar second agreement. Whilesignificantprogress Iws been made, many opportmni usremain to reduce the nutrient loading to the White River. This agreement is less restrictive then the 2006 agreement, but continues recreant source water quality improvements as well as resticting the annual wastewater discharge phosphorus loadings to below 0.5 ppm. BURCtc'I1MPACf None. In this agreement,The City commits only to use hinds as identified within the 2013-201] Capital Improvements Program. sa,w ere sae w,a Gamow.Phase,war a 20 axurmrrca„w �h xn�rvwhz wars, Second Agreement balween Beaver Water District and the City of Fayetteville for the Protection of the Beaver Lake Warerebod This Agreement is exa w.ed his day of 20 , between the City of Layctteville, Arkmsas, end Bearer Water Dishier. The parses agree as follows: Beaver Lake isill e sole scored of drinking water for most of Nonhwest ArkansasThe City of Fayeheville Bad "City") and Beaver Watef Dis4id (B W D) recognize that pmleotimr of this water supply it of extreme importance The City has for artery years taken a alective role in miahnietng the discharge of pollutentg eapeeialk phosphorus, into both the Beaver Lake and the Threes River wateruccle BWD WTu has implemented a proactive source rater protection program that emphasizes reducing the loud of nutrients, including phosphorus, and sediments going into Beaver Lake. To 2006, the Arkansas Department of Dnvhmunantal Quality (ADITQ) proposed to issue a renewal Rational Pollutant Discha4ge Dlimigation System (NPDLS) Permit for the City's Paul R. Noland Wastewater Incafimnt Plant (tile 'Called W WfP") that wool(] allow almosta doubling ova turn of the discharge oftreated coupon into he White River approximately six miles upstream of Beaver Take Concurrnmly ADBQpeoposeda reduction inthe RPDDS Permit eliluent dLacharge limiwdon fur Total Phoaphor'ns fiom Lp niltigrnm per liter (mg/I) b bS mg4 eco a mrnnM1ly average baaia_ That meant that while the rolomc of heated eflloem discharged to he White River could almost double, the pounds of fetal Phosphorus discharged would not increase The Noland WWI'P had a demonstmred record of maintaining the Total Phosphorus concentration in its mated effluent below uk ng/1. Operating the W WTP m ensure compliance ralift a mere stringent Total Phosphorus limit in its DPDLS Permit ho"rest. would narrate he operational costs. 'Phe City and B WD both recognized that mgoifleaut arnourr, oiphosphona ht the Beacon Lake watcrabed cera fiom creation soofcct, and Con a True clotcffeative approach to educing nuGeen loading to de Beaver Lake wheedled might be to reduce noripointTom le, mher dan point Toes, pollution. Tire City and BAD entered into an agreement for the protection of the heaver I elm watershedin March2006 (hcruinaftcrrcf icdtoasthe"first AgrcomcnP". TheFirst Agreement set forth aserics of actions that would allow the Noland WW'fP to keep al.b used 'Iota] Phosphorus effluent discharge limit In its rcncwal NPDLS Pcrmit in exchange COT tile CSty doodad e a Program to reduce nonpoint source landings ofphosphorus withiliffouBlareetLalaccatembed_ In essence, he Frol Agree em was based on the City's and B WD'S (OlUrr bnent to show redactions of Phosphorus from nonpoint sources sufficient to offset the inueased phosphorw loading tiom deNoland W WTP thatwonld be allowed Thus Trevor permit provided for a discharge flow increase and kept the L0 mpJlltnnl Phosphionc limit In express recngnibnn oCde First Agreement, ADGQ Ssoed the renewal NPDFS Peiri for the Noland W WTP, elfecove lune 1,2006 (hereinafter mfdned m as the"2006 Permit'), with a Total Phosphorus limhof I9 rich 1 of'I cos.,s,.a od sad wam cmniae.e,PN,6 azo ADEQ currently is in the process of again renewing the NPDB9 Permit rot the Noland WWI P. 'fhe City and BWD believe that the actions taken racist the First Agreement have been Doduativeand that, if continued as he IOWs, they variant the r ionofthe 1.0 mild Total Phoaphorus limit in the mixt renewal NPDRS permit for the Nolavd W WTP. Therefore. the following amlons and commitments have been agreed to by the CStyred BWD: L l he City will maiutsnthe operation of the Noland WWTP to achieve an effluent discharge of Total Phosphorus ('t P) that is at a below 0.5 find on an annual orange basis. 2. Thenemual load of TP dieoberiod to the Whi to River will be a more that 9.49 tams 3. Tile total load o C TP dro.lin god to the White Rivet from Inly l to October 31 of eachyear will be no more than 285 tons. 4, the avenge duty load of TP disehargud to Nc White(liver hour Ally 1 to October 31 of yeah year will be no mote than 46 7 parody (Ihs). 5. ilia movement daily load of'I P disihargcd to the Write River from July I to Colorer 31 of each year will be no more than 93 4 her (1 0 mg/I II x 112 million gallons per day x 8 J4 ]by per gallon). d. The City will report nmnRdy to BWD the diecbarged limit and cnnecntratlons of TP front the Noland tis, WTI`_ 7. The City will continue to review City modes and orditwnces for opportunities to improve honptdnr source cootrols. 8. 1lie City will continue to urethane the creation of sroruuvater management utility. 9. The City will combine t plt reappointreduction projects (ouch as stream bank restorarinis� menmrain garden construction, and educational Tientsin) at levels wnsire nt with the City's 2013 —2017 Capital Improvement Plan 10. BW D will contimne W implement its source water protection pmOam (which inibules watms and and intakemonitoring and modabng public outreach and edrwtion and support lir Imtd oreservation) at levels cotwielenl with B WD's moral bndgm as approved by Ilk heard of Directors. 11. BWD will oontimie to work with other animus within the Bcavm lake watershul to implement the Braver Woterebed Alliin e t May 2012 Revised Beavm Like Watershed Protection Strategy. _of3 moa.,s,.aaes,raw,a,ca ra&i,,aaam,moa,razo 12. Both BWD and the City will seek outside souives of funding to leverage (heir respective dxpnhdion us on source water protection and nonpoinl source reduelion projects. 13. the City and BWD will meet quarterly to coordinate and share plana for Iutue offers, and review progress avoid by both parties in achieving the goals o the Second Agreement. Both BWD and the City neognire tam ah ceresin times extreme environmental conditions nury make it imposnine to meet some or all of the above actions and commimre rte. This Second Agreement shall be in effect upon signature by both the City and BWD and shall remain in ricer during the term of the rumwal NPDBS Permit that replactir. the 2006 Perrin CITY O1, 1,AYE'IFE.VIW.E, BDAVBR WATER ARKANSAS DISTRICT Date Date Lioneld Jordan, Mayor Pi evident Board of Directors SondraSmith, City Clink 5ecremry Beard of Theatres 3of3 cos.,s,. ,1 sun w,s,ca,l ao.m,wa,8 azo aye i le CONTRACT MEMO MAYOR'S MROVAJ, THE CITY OF FAVETTE111LIZ ARMNSAS TO Mayor Lkoneld Jordan I [an Don Mart, Clilefof Bray I David ltugmq Utilities Director ,,Iyy � Fayetteville Water 0 Beaver Coprmfine Firm: Shearson,lone , Utdiflu Engineer Data Nov ember 27, 2012 Subject Approval of Chm]ga Color l with Enable Construction, LLC for a deduction of$45,499.5 1, for He completion of Elkins Cutthll Gravity Mower Impravainarts, Bid 12-16. RECOMMRNDATfON Paycdteville City Staff meommavds approval of Change Orda 1 with Rosetta Conn ting LLC for a SMuchon of$45,499.51, for the completion of Bilins Outfall Gravity Sewer hnprovanente, Bid 12-16. BACKGROUND The City of Fayetteville was awarded a State add Tribal Assistance Grant(STAG) In 2010 fir $485,000. no great funding is matched 55% federal to 45% ImmL The City's madding lhvds we $396,818. The City if Elkins provided a coslwM1.va of $150,000 towards the Project. This Fayetteville owned line carnes Elkins' wastewater flow in additlon m FaysatMlle water firm that dreg. The purpoec of tho gena {s m help fwd the rehabilitation of the sanitary sower system in the area of and including lite Blkhw outfall sewer line. The avdikable STAG giant will fund $380,723 of this contraek the balance of the gent will be used m line approximately6,000 fuet ofsawa Ilne wiW a curaltin-place-pipe(CWp). DISCUSSION no contract will] Rosetta Construction, LLC replaced approximately 4,450 feet of neva line that serves as the gravity, iuffall from the Elkma sewer force main. Also, 28 meMolen were wne4uokd and ]ideal with a protective Newser no.work was completed on time and $45,500 below the original total bid Pace of$692,223. Scanniing fiords within the project will be used m fined a CUP project that will he bid out early next year. BUDGRTEMPACT This cbangeorder is deductive, and Compare does not negatively impact Had proieet budged. Tumm.auncaaw�D.aam.ue o©r toownlstvu16 n-Foria"IIynP]l])I mains(Var-esocCitanuLtem-feCefun.f7NDvc%L2 do, wanr,a.var me said wase cubusbas areae,Ing,9 area CONTRACT CHANGE OR BR a�a,Vali —wti d If alyeW2 MVlvEvnX il IV Mavv Nu: loolol EGw pa Nmm: FInaOUMl QarnvBew lv¢mmmmL LiI. R CM ofPpxoevllM ('gn:tavo�' ME,1C1 LIUC=NLU atldrecx Io lmt lm p Mnete: PoBU IaN< E ARE Ad RAI� m fid4 4581a .PDId.O NOCNAHG6A9E NER®Y MIpIppD WTOTIiE WN@ALT PId AN09PECNICATICNS: TEEM NCLYLWrGGN DECILIE WcKt, SE �lllMIqlIlq,L.3tITIla SxaeaMMNpJayw2 -MMW51 TaIUE@PASEAMO 5.99951 TGTAL]WIIEa8EM4OEM >DAL NETE!MAKMO EP S-0S.MSI T. MPNGISLEAMOUN MA kul Wmrc:Amw MEAL 00 8 dYPm G $9S9 11 mwnt TEL. ONre g .rys 95 MALWM'MCTAMOVry I"NAATE 5656E W677149 @rMaion pkT PLE IW 9eemabp19 tp 13 :"E"Mm= x oaa l!m=+nw)"Pleom GTela csmA,am E,tl„np. 0mwl E 0,ksa5a012 CGuaelmEv: m OPPAmsVA w m u Error smsnaconETnuawx,uE L�a rs , sEnxm VEOt EVILIE nn Y; waw,EE, .a sae wax Cm Il ma9.:m w9. 10 a al Cost Breakdown for Change Order naohpnnn cnv'K, c nn>u naannm Unit rUmi nel nalnu con Ult (U,[ QmnUv Qui N. Ant I Mnnlh'asAon LS MOW 00 1 LW ou a 3 Tmi m sereo Wei no 000 s �s bx,o0o0o 1 100 a.0) a dfii S"'P@n 953.00 31.00 13.30 .0 fi3900 "inti Si I F $55W 1050 39.50 S (2,17250) 6 Fomn Mnin emit, LS 5400)50 1 1 00 INr 18-PVC'GeavLy Snrcx Plpo LF "IN 2600 9332a 183" a iSO,32486 Fpe amgL6 on'o-OW610" m 1-1020 LF b82000 0 99W .00 00 s i155800.W1 9 Polnlae0� ,5500 3 00 % (].001 10 1191113W Skel Euncnam Pipe LE, 513500 420415 W 15 a a 1 _ n $3020 2000 0.50 a I3 Sbm, ® 0n0 Lnest 90)0 94.00 9 65563,00) 13 s1�:mm m,:nnm,4 oln.o.a s?aonoo aooa 4.a'noo 14 SdoJara Mnnnolc 4' D9a e:mn uepm vF s1u o0 BO 873 z0 s 52 IA $4W 00 25 u0 s (40no0J Mani 955000 Zino 00 s (50.050) e�.1n�g 4Dsan 16 Wal Tn gMinims A,a )to 1,00 00 a 118 A�Aonsl r:mnt Pe4Elns 920.00 20 70 -133.00 9 (?38600) 19 ply Cetus;t Repm'r 9V 13SW 52.00 23.00 9 (6,615.00) 20 Epin Cetus;Sye�A'llinmmm Vp .0125110 -43.00 S (461500) 21 XOell,Bank 53. asso,W oo s (za50o0) 22 mellow smoW�lmn er $100 4,500 214831 6 a 61.0051]2 23 umw lmpeoJan 6y CCN burp 4448.48 .51 52 000 $ (51,52 si:�anann o0o a aal cnnn omel 51.49951 ' I wa.,S.v.ad apse w,x C,n,nke.a9.b.Pi 11 a Lake Sequoyah Pilot Dredging Report 6608 E. Lake Sequoyah Dr Fayetteville, AR 72701 Purpose Dredging lake Sequoyah would effectively re establish the lake as a w.ves",via n ...a ....rr,.." sediment concurrent and recreational pea, I ,. wing the captured, of tons of resource, allowing ' ' " � " �� . . . future sediment to helping ty to protest Beaver Lake water quality This pilot removed a small portion of sedimencompare Ge tubefloating d g dredge rocomesul Geo (• of tling amuch sin lacer cR; enables sampling g ' se a me nM1 larger cross-section of lake _ and to pr than was possible previously, and to provide other imine future that cuIs e be used to determine future estimatle ed he lake cents inn. It is estimated pounds lakecontains almost 5 billionues pounds of sediment nthat Oland tewaertrer 3.6 enmentpands of tofalpho WWTPs. permitted to or perspective, the of4pounvllle's Paul R. (phosphor wastewater treatment plantrge les WWT2 ispermitted dadischargeedispounds of to phosphorusdailyandears yrth of permessthan20poundsperday. Atearsefictuarg iratestee lake holds more than 100 years worth of permitted discharge P and over 500 years of actual discharge. Dredged Sediment Removed Approximately 500 cubic yards of de watered sediment were removed from the headwaters of Lake Stomach about X miles downstream from where the East Fork & Middle Fork of the White River enters the lake. Removing 500 cubic yards required one small path <200 IT long x 8i wideSediment depth for this pate was more than 4 it deep and appeared to be consistent with preliminary coring efforts and as thus determined to be representative of the lake in general. Dredged material was 5-10%solids as pumped from the lake and was 56%organic and 44% Inorganic As determined by a depth finder,the water column was 2-3 ft deep before or in front of the dredge, and 0-5 ft deep after the dredge passed. As sediment was removed surrounding areas sloped Inward to fill the void created by the removed sediment. Approximately 1,200,000 gallons of sediment slurry was pumped from the lake to capture the 500 cubic yams of sediment Interestingly, the sending basin appeared to capture more sediment -30Dopera) and required less total gallons 1'500,0001 due to apparent increased capture effectiveness. Sediment Dewatering Methods Two dewatering methods were n used for the pier project. Along geo-textile bag called a -Gumdrop: mite circumference x 9-ft long with method height od7ff con tall and a capadry of up le 205 cubic yards of material meepsegallons was one nward sl The walls and thod capacity up simple gall5 it wide x100-te ung x and deep settling basin with inward sloping walls antl capacity uphe 25ep00 gallons or to bo twecubrs oartlz of mateening al. Polymer was added in variabouus t 70 sage gallons of to Draperies slurry10 Polymecedr f into both typesofdewatsed saflocc For this project, about JO gallons of Drewfloc 3430 Polymer from Ashland° was used as a flocculant. wax,si.dl ad w.a cm.nw.All axe. 12am 'gas tube was set inside loot[wide x loo-ft hong hard, with a2sR wide x6-ft deep trench dog around bag for drainage/water channel area. Also, the bag was laid on 6'of gravel to allow drainage from bottom of bag and hookup of bag. Equipment &Staff Needed for Settling Basin Using the settling basin for sediment dewatering required 4 Personnel'. 1 dredge operator, I shore operator, I polymer calibration operator, and lwork hand. Equipment included: "6 x 4 Dredgen-6- outlet with 4" Intake with a pumping ca plainer of 400 giant 60 no Caterpillar bulldozer for dirt work the first day Bobcat skid-stoer loader for small jobs throughout set-up phase 2 work/travel boats for getting to/from areage 300-ft of 4" hose from dredge to flow splitter device 30itofV hose from toner to gent tube 30 ft of 4" hose from splitter to settling bazln 12 2-ft buoys to float dredge hose V/Splitter—polymer Injection and valves to split the flow between the geo-tube and the settling basin 70 gallons of provides 2410 Polymer from Bangui & drum dolly (approximately 40%to settling basin and 60%to geo-tube) Polymer mix chamber& discharge: water Intake up to 100 gpm, polymer intake up to 1 spin wa.,exi P]gad Wi cmralu.a4.e.Pi 13 am 10 ft oft" chemical hose for polymer Injection from pump to splitter 25-ftx 1,200 ft roll of 60 mm Inner 80 5-lbs sandbags to work down Inner Generator for polymer mixer& pump, and Inner welder Small 60 spm pump for polymer dilution water 50ftof 15" hose for polymer it upon water Small 500 spin trash pump to pump out ontalnment basin effluent 300-ITof4" hose from trash pump to lake Latex gloves, an per towels, duct tape, Sy various ha no tools (screwdrivers, wrenches) Eell arrant& Staff Needed for Geo-tube -All equipment and staff for Settling Basin and'. 32 cusses (40 tons) of gravel )3/4" Limestone Aggregate) 45 ft circumference x 57 IT long TenCate° Geo in be Pole/Measure stick for measuring geo-tube height Setup09/04 start-09/11 I. Project so had with dirt work using a bulldozer to build containment areas for geo tube &settling basin. Less than 8 hours of work with the bull dozer ware men rod to build both rontalnmem basins Both basins were lined with 60 mm thick polypropylene materiel that came on a 25 R wide roll. 150 ft lengths were al and moved into position with the Bobcat The liner welder, escento lly a hot press operating at 700 degrees,was used to weld/seal liner sheets to one a nothec This process was fairly slow and Sludge Technology, Inc" , the sub contractor who performed the dredging work, was not famlI lar with the welding eq ulament. Liner welding therefore req ulred 1.5 days to complete -30 sand bags were used to keep the liner weighted down to prevent wind from blowing the material around. Welder issues a few times melted holes thin ugh the Ilneq which were patched with sl))cane. Once the liner was constructed some of the berm dirt was laid over a 11 edges/border to provide a more secure wind be inner. 6" of gravel was laid for geo-tube to Ile on, to level the geo-tube and to allow water to day pe from the lower portion of the tube. II. The tlretlge was placed Into the lake, and then navigated to the Intended start area. This sma 11 dredge required less than 2 ft of water depth, while a larger or 'm 11 size dredge might equire as much as get of water depth. Once the dredge was in place, the hoses were attached Along flexible hose ran from the pump discharge to the bank and allowed free movement Of dredge without concern of hose pinches or kinks. Buoys were attached to the hose periodically to keep hose (once full) on the water surface and not dragging through sediment A®hle was ws.,s..in sa sa4 Wait,(w rrri a4.ea Pi 14am attached from the dredge to a secure loa0on onshore (tree) Beginning the dredging process far off from shot winch on the dredge used this cable to our Iin, dredge in rough the sediment toward shore while dredging Work boa (s)allow staff to traffic to and from dredge.The dredge stayed In the Is ko 20/7 so caution signs were posted due to 'hangl no able'. II. Pipe coming from dredge came _ land and connected to a flow - pointerdevlca directly before feed(no - pro tube/settling basin. The splitter so had an Injection port for polymer feed,which was mixed/diluted just upstream. Another small 60-gpm pump pumped lake water to polymer x system while polymer concentrate was added. This polymer as pumped about 5 it to the Injection point Of the splitter. Injection of polymer was about 30 it ahead of either the Geo-tube or settling basin. The splitter provided the caps blity to divide the flow to gep¢ube and/or settling basin as needed- At startup or times of polymer calibration all flow was sent to the settling basin since operation of the settling basin was more flexible. Once polymer dosing was dialed In 311 flow was sent to geo-tube or spill between settling basin &gas tube. 0redging Activity Does, 09/12 09/13 09/19 & 10 Ol I. After set-up was completed, polymer system started and a goad polymer mixture was obtained then dredging started. Polymer dose calibration was checked frequently (every 510 minutes) at splitter from a spout located 2 f downstream of the polymer injection point. With variations In sediment depth and slurry conscience polymer adjustments were needed frequently. Once polymer dose was correct all flow was sent to fill gastube. Attimes, when polymer dose needed adjustment flow was diverted to settling basin until mrretted Also, once the geo-tube was almost PoII flow was split between both settling basin & geo-tube. Once the gastubewas at fill point flow was sent to settling basin until half full. The goo tube was allowed to th water overnight and filled again the next day. Day one the settling basin was left at half full to allow room for the next day's pumping into the gas tube (start-up polymer adjustment). II. Too much polymer/ polymer overdosing would blind the pores of the gee tube, so It was important to have polymer dose correct before send)ng flow to the gee-tube. In the same sense, Insufficient polymer dosing allowed loose sediment particulate to blind the gem tube alio. Even with the correct polymer dose, some setllment still tends to blind the geo-tube. Sludge Technology, Inc- employees ould slap the bag by Kano to clear pores;also they would walk on top of the bag.Although in, method of walking On top of bag did seem as If It could be ensure it worked extremely well to significantly se the rate of dewaten ng. At times of very little actatering war king across the top ofthegeo - tube dramatics HIS I madded the rate of water being it charged Another note Mora Is that the Tencate"pass tube used In this pi lot can IT withstand a tremendous amount of pressure- Not only did workers walk on the seatubebut on day one the bag was very Il kely gb .,Ali mead w,a,,cmrmrm ae.en eager 15 am Lived had. The I tube was Cur Y 'Lill antl still being pumped Into, not rehire and , Tone° worker still goo on top and walked thio gcvInbe icfcving alll;c aMen nt pmssure and allow i ala go volume of separated water to move to the storage area s� a BgAu De Eal +r u.: III- Day oneTte ges,tube was n Iatl to]it and reentered ove:mt to]-d, bell rig paste was filled to 50'% (-3-fl deep) and conscience overnight to of 75ftof solltls. Effluent sump es ..,are col'eced from both assignee Isee gfluem particle Results) Day two the gerstube was filled to hilt and dcwom ed m z l:;settling b sin seas lillcd to 75,r (added l tt) and dewatered to loot of thickened stairs Effluent same ev were t r ml eaetl (see effluent Seser e Resu25) Between day two and day three both teh'i desina sign: freshly iI gich llltrzce/separated Ovate, and wote burnedbackto asks (a ter femalestakesif Ofllaet acceptable to damage( About 15of sediment . dso'ne wo at Was left in card gb Day tiree the Dolymer w'ralner was emptied once the goo tube was tilled so tee settling basin was filled anomer 4 i without pplymcr. Day di after geo tube was fllletl to ]-h and desecrated to 3-R, '.hc seLLling basin was filled again no polymer added) and traversed to 2! itofthickened solltls, which concluded pumping to tee settling basin. Effluent sgmplev were m Ictled we Effluent Smnple Besultsf Be ween day three and day four both containment basins were monis fa I with flLra.e)separated were, and we , pumped back to the ake (attersema e analysis proved ef(luem acceptable to discharge) wki s...se safeW ,unite.Al Ovr 16 am Collected Settling Basin remark sample to show concentrations atter of 12 days settling see Effluent Sample Results) Day Four the gaptubewas filled & tlewatered twice. After the sea-tube tlewatered to 45-f[ discharge samples were collected once more (see Effluent sample Results) No noticeable odors from the dredged material were arrested by any start during any of the dredging. Unheated Slurry/Dredge Material Sample Results 091912 slurry: TSS 137,900 mg/L T-phosphorus 87.0 mg/L Lake Water,too Fear water south end of lake -200 it from dredge D91912 take Water: TSS 43 mg/L T-phosphorus 0.15 mg/L Effluent Sample Results 091212 Gas tube T55246 mg/L T-phosphorus 0.46 mg/L 091212 Settling Basin: T55143 ni T phosphorue0.28 mg/L 091312 Geo tube. T55 154 mg/L T phosphorus a.26 mg/L 091312 Settling Basin'. T55 116 mg/L T-phosphoruso.17 mg/L 091912 Geo tube T5549 mg/L T phosphorus 0 1 mg/L-ideal polymer dosing 091912 Settling Basin'. TSS 27 mg/L T-phosphorus 0.98 mg/L-Ideal polymer dosing 100112 Geo tube T55900 mg/L T-phosphorus 1.24 mg/L-poor polymer dosing 1DO112 Spring Basin: TDS 110 mg/L T-phosphorus 0.59 mg/L-no polymer, 12 days settling Sediment Sample Results per tube. Potassium 420 mg/kg Tphosphorus 70 mg/kg T-Nitrogen 544 mg/kg Settling Basin: Potassium 421 mg/kg T phosphorus 69.8 mg/kg T-Nitrogen 298 mg/ks Visitors Sara Wrens: City of Fayetteville Engineer She visited and gave the Impression that she viewed the sea tube as the working version due to weather element &drying abillfty. Lynn Here:City of Fayetteville Construction and Contract Manager Lynn does have previous subcontract work experience with Sludge Technology, Inc' and did not seem impressed with their ogees Dept o. He w Hookresled of Rogers r Dept rPlanning il Transportation project f Development Manager He was rested in to sees dredge project regarding similar a potentialproject in Horthe luaof Rogers He was also Interested in Sludge Technology, lines regartlingtheir potential interest/capablLtios for his project. Summary In general, the pilot ediment as ell accomplished ffieintended goals of dowatlngalargeres Wake there re we he cre ontained many encounteas red that mostadorable bea addressed tPwalot ng methods Whileeven more important many is unperetl that had seems obvious tXtl tweeor the pilot project remove will , than e rudiment for not alppear operation, it seems obviousthatache sediment can t, and that that the either sediment does not appear tocontain work rmful levels the sediment any anticipated pollutant, and that more effective both de teringcosta and operational work the sediment basin system will likely prove to be more effective both from a cost and operatlonal perspective. wa.,sa. r se arid wax carraxa Adl wa. 17am Issues Encountered 15 Polymer Ooze lnconevendei The concentration of the sediment slurry changed with depths and ouldh variances of water Intake, making polymer dosing and calibration very hard to manage. Ideally, there would have benne lank In-linetop be asmall 5,00canalization galmarea tohelp make mped or alloumpingwed more consistent. Dredge materialmight in in pumped [0'5,000 gal mixing tank, [hen pumped orallowed ro flow by be cons tank (with in line polymer injection) to settling basin so the sodds/golymer mixture wouldly (a more consistent. and Nicole polymer sales rhe fromAshlandhilly who supplied thepolymer) wasvery . With the other two adjusted/calibrated eolymence ds Sludge first Technology, days of dredging,they co could not perform good the polymer adjustments tions as wane 2. Geo tub Blinds g. Anecess necessary drove they coulo eyetube plap sides sjf bag and unwell. pores-tube another rte Aiqueused techniquekon top of the tube was to slap sides offs and unclog tores knop the see tube draining used wants walk on top ding up he bag and unclog pores.betterswas necessary to would need to be a eloped to unto prevent tube such a excessive pressure. a better/safer Dullyner over developedtoanernt gesdtube susM1asusing apressure hazefrom adistance. e3.s Polymer aver-use. The total amount of polymer used rfor ed u e pilot was 3%'s what was Initially due to Sludge by Ashland (Estimated use of was 20 al,ex required use was theals Some of representative over use was nee e Stutlge ore polymer Technology, er then originally of polymer emed. One but theory n the ASMantl® representative water used to use more polymer than ectamed some One theory regarding prematurely this ysue was that the lake water used for event n of the polymer contained some organics which prematurely enacted with the polymer and m plentetl optimal dosing from occurting. CHYM HIII purchased another $900 drum of polymer to complete [M1e project. Lessons Learned & Suggestions 1. Settling Basin effluent (water going back to Lake) always had better results than Geotube. S. Settling Basin required a lower polymer dogs than the gyri-tube, and would likely even require less still if more time were allowed for settling. Gas tube required same ratio of polymer to slurry% solids as not to or no bag. Polymer was $22 per gal. 3. Settling Basin containment only required gravity Is time so more sediment stayed In basin 6. Geotubebeing filled built pre and the higher pressure pushed more sediment out of the bag. 5. Settling Basi n had more room for error if polymer system me functioned 6. Geo-tu bas cannot be reused antl are normally lantlfll led after one use. Settling Basln(sl can be reused with minimal effort Geo tube is roughly $11 per cubic yard of sediment removed on TenCatPv geotube cost). a Product vivollllty is low in both devastating methods and frequent spot checks at polymer Injection is recur red, especially for geotube operation.To see prod up discharge settling basin Influent can Id be introduced onto an Ideated] spillway that flows Into basin. A translucent polymer mix chamber for vizi dies Inspection of polymer mixing with a sample port would also be helpful. 8. Settling Basi n requires drainage or pumping of effluent back to lake, after allowing some settling time 9. Settling Basin requires or it work to dig & berm. Geo tube does not Teresa rely require ental Thant basin even though one was used for this pilot, just adequate it Tani back to lake (minimal dirt work, if any with proper slope). 10. Gas tub, material does tend to become blinded or dogged Openings in the material can be cleared by hosing, hitting, or walking on bag. 11 GastubeIs far les affected by ram since itis somewhat covered and sets up out of the water while the settling basin Is exposed to the elements and tends to collect water from rainfall. waa,s..a ae ran Wi carrmr..Ae.e,wr 18 azul 12. An adequate polymer mix system & feed pump, designed for variable dredge material &variable flow rates would be necessary. 13. Pumping material to a large mix tank before polymer Injection would allow for equolizotion ofshery conscentorknoris to al low fewer polymer Infection rate changes. 14. Basins may not need to be lined, since the sediment appears to have extremely low levels of any conta m Ina nes. Sludge Technology, Inc° said other dredge projects they had worked with had no just 15. Both Geo-tu be &Settling Basin should be sloped to allow separated water to drain back to lake via gravity rather than needing to be pumped. 16. At a minimum, there needs to be silt fence or other preventive steps taken to provide an adequate stormwater runoff protection program, though no Issues were noted with sediment runoff during the pilot project. SI. Contractor Professionalism, Experience& Collaboration. The contractors work and prole ezona lis inflect on CH2M HILL and the City of Faecttevll Is A large scale project will require any contractor used to be familiar with the work and to be communicative and cooperative. 18. Sludge Technology. Iran hired John Fluethe and his dredge Il&K Dredging°)to do the actual dredging for them, John was very familiar with dredging and said he has larger dredges. John was professional, knowledgeable,and cooperative and could certainly be recommended. l&K Dredging John Flusch,918-521-8539 4710 Elm Grove Rd. Muskogee, OK 74403 since 1994 19. Several work sites (settling basins or sea tubes) would allow the time for dewatering t0 occur while pumping continued,thus optimizing the use of the dredge. Work would proceed by filling one settling basin or Sea tube,then start another and allow the first to dewater and so on. With a full ale project at least 3 5 work sites will be needed 20. A large dredge may require starting dredging at the ulicading area. A large dredge will require at east Fit of water depth to navigate and may require the need to dredge way to start location. 21. Sludge Technology, Inc" Intllca[etl that even with small dredge Bke was used on this pilot project,( 4" I Make w/600 no motor), the 5-10%solids could be pumped the entire length of lake See uoyam 22- Depending on the rate of flow Into the lake during dredging, full scale dredging without constant effluent drainage back to lake may temporarily reduce the water level. It could he necessary and is ekelY desirable for flltrateJeffl hour to be continuously pumped/drained back to lake. 23- There are many fallen Ilm bo and trees in Lake Sea Royer and they will be difficult to work around- Ideally they should be removed Some type of system to cut up limbs/trees may be required before trying to lift them with a bargemountedcrane or other device. 24. Some type of onshore landing &transfer method will be needed for removed woody debris. 25. Full scale dredge needs to be prepared for debris that will be encountered on lake bottom. 26. An unloading zone needs to be developed to allow the dredge to be safely placed Into the lake. Even the smell dredge was fairly difficult to unload at Lake repressor's existing unload zone and there Is no way a In Mor dredge would have been able to unload there. 27. Alarge it redge cell l need a spedFlc route to to be Sequoyah around the bridge, since the bridge has weight )unit of 32 tons. 28. Byron Humphrey (Parks Department) mentioned maybe using a dredge for lake Fayetteville also. If the dredge Is not to stay In Lake Sequoyah ful I time there will need to be a trailer available to transport the dredge to other locations. 29. Access roads In and out of dredge areas colli require not only Inulol upgrade to a more permanent surface but occasional maintenancelarge dump trucks Toy he In and out through the fields will have an Impact Subsurface and finish grade gravel for these access roads will be requl red for successful long term operation- wa.,s..e,sin sizes]Won,montane,A4.e,coq, 19 ata 30. Sludge Tech noIoay, Inc° said they would not recommend trying to perform dredging work November— March caste pipes, hoses, & polymer freezing concerns and difficult weather related working conditions. We have also noted that the drying rate during the winter months is greatly reduced. we,20 a 20 A Arkansas Department of Health .. Grumps,MilBe latitK,Ha e,mirmiirmidS OP nyl y5n - L.L6 r November 29, 2012 Mi.. Shxmmn W. Iona P.E. City of Fayetteville 113 W. Mountain Fayeaeville, AR 72701 KL. Standard Specifications ter Design and Canehadion of water lines and Sewer Lines 2012 Edition Fayetteville, AK ADH a 83030 Dom off. Loney The 2012 Edition of the Standmd Specifications for Dctign and Constmetien of Water Linea and Sewer Lincs for the City of Ilasettevide, dated August 2012, prepared by the City of Fayetteville and submi(led to the Pmgi neering Section on November 2,2012, has been reviewed and are hereby approved with the following mndripoN L The Engineering Section relied upon the statemems and represcnrermat made 1a the engimcr'.v robot plant, and specifications. in case any statement of mpmsentation in the aforementioned foramenis it found to be moon eco this Approval may, be revoked_ 2 There shall be no devialion from We standard tpmifications unless revised edition has been first sit di for review and written convent given. 3. '1 he Engineering Section will use Nese specifications for plan it ew for all water and sewer pi jecln in Ne Cily of Fayetteville. These standard epeciricadcns will takefneccddecc over any specifications submitted by an engineering firm unless (lie City of Fayetteville tpecificaty rectifies this office in writing of intentional deviation from the approved trenched specifications. The copy of the stindmd spedflendons will be remind for ow files. When submitdrg corfespondenec pei tirmgNlis project, please inel ude our mfcxcnee number ADH# 83030. Sincerely, ✓V � Lmc es, P.E. Clue Eng neer ADH Engineering Section IJ:CSCCHH:cbb STANDARD SPECIFICATIONS FOR DESIGN AND CONSTRUCTION OF WATER LINES AND SEWER LINES Tayve c i le ARKANSAS SOU MMON The 2012 standard specifications for Deep and Construction of water Lina and Sewer Lina was prepared by the UMtks Deparlm®t of the City ofFayettav0k. mica 2 TABLE OF CONTENTS SECTION TITLE NO,OF PAGES Tide Pages Table of Contents 1000 General Requirements end Procedures 6 1100 Generm Design Shniads—Water 16 1200 General Design 8 undards—Sewer 16 2000 Trench Safety 2 2100 Emalonend Sediment Comunl 10 2200 Site Preparation d 2300 Excavation,Bac1c511ing, and Compacting 10 3000 Sewer Pipe,Pittings,and Materials 10 3100 Installation of Sewer Pipe,Pilings, and Matenals 12 3200 Installation of Sewer Service Lines g 3300 Manholes 12 3600 Stcel Encasement Pipe 6 3500 Sewer Pump s ations 16 3600 Cu[-Iv-Place Concrete d 6000 Water Pipe, Pittings,and Materials 16 6100 Installation of Water Pipe,Pilings, and Matenals 18 6200 Water Line PRmure Reducfiov Procedures 6 5000 Sewer Line Cleaving 6 5100 Sewer Live Television Inspection d 5200 Inspection end Testing of Sewer Linear Manholes. end Service Lives g 5300 Inspection and Testing of Water Lines and Service Lines 6 6000 Pavement Repair 6 6100 Iawn and Grass Remmrtion 8 6200 Repor6vg Forme 20 Standard Details —Separate Document ttx me 1 MUS PAGER fENMNALLY=BLANK) END OF TABLE OF CONTENTS ro m= 2 SECTION 1000 GENET REQUIREMENT$AfM PROCEDURES PART 1 - GENEIIAL LOI WOREDlCLUDED A. Ther Specifications for water design and=Mellon are provided to outlive the City of Payettevitte's procedures and minimum criteria for the design and cemtrmdov of water and sewer lines within the City of Fayetteville, Farmington, Grcenlavd, Chahar, Johnson, and afi other areas within the City of Faye uaville's water and/or newer distribution and collection systema. Throughout this document, the name City of Fayetteville shall apply for 0®titles in the City of Fayetteville Water and/or Sewer Service areas. B. The City Engivects office is responsible for the issuance of conatruction permits for the installation of all water and newer facilities constructed in the City of Fayetteville. Water and newer facilities shall be designed and conatrumed in accordance with these Specifications. C. A precom[mctiov meeting shaft be held before initializing work One full sed of construction drawings shall be provided to the Water and Sewer Department before work begins. D. These Specifications net forth the minimum criteria for the design and all work in correction with the =Mellon of water and newer time within the jurisdiction of the City of Fayehevilte including the entire system and its appurtenances from the water distribution system ro the point of correction at the water meter and the crdne sewerage system and its appmlevavcea from the point of correction with the building ptumbing to the discharge random of the Moment plants' ouGaila. The City Muvhdpat Cade and aft Ordinances of the City of Fayehevilte mail be cemidered a part of these Standards: and all drawings, profiles, wt sheets, easement dccummta, and specifications shall conform to the standards and requirements herein established Addenda avd/orrevuions ro these Specifications by the City of Payetrevilte may be issued pedodicatty, and will be distributed and made available to the public and contractors at the offices of the City Engineer. Users of this teal are urged to review the hided mebiom or millions to these Specifications to apprbe themadws of any changes/revisions. E. where the requirements of another juradictioml authority having influence on work handle the purview of the City of Fayetteville are greater than that provided by these Specifications, the work mail conform to the greater requirement of that respective jurisdictional authority. omm= 1 P. The Owners of the pmjectshall be responsible for procuring all necessary WaterB and licenses, paying all charges and fees, acquiring and recording all easementa andgiving all nodcea necessary and incidental ro the work. O. All construction projects shall conform ro these Spemficadons for aceeptivce by the City of Fayetteville. All constmction drawing and apecifiradova asset be approved by the City of Fayetteville before comminution begins. Fou time construction observation services shall he provMN by the Engineer of record. Final acceptance testing will be coordinated with the City. The City of Fayetteville shall be given a minimum of forty-eight(68)hours notice prior to the commencementof=mctionpmjectsforobservadonpu ms. Noticeshallbe given no Loor than 10:00 am the day poor to the activity requiring observation. H. These Specifications one Provided with the intent of morning Project downturn assembly and agency review, and to provide for the highest quality comminution methods and materials. I. The Specifirxdo is are a result of gadwrivg information on the most current and applicable materials and test data available from aources such an ASTM,AW WA, AASHTO, sec. As new materials and techniques become available and acceptable, the Specifications may be revisal andupgmded. I. These Specifications one written in imperative and abbmviaW form. The imperative language is dimctoxi at the Contractor, unless specifically noted otherwise. Ivcomplese sentencea shall be conquered by inserting "&half' "the Contractor &hall" "atoll be', and si®lar mandatory phrases by inference in the same manner an they are applied ro notes on the Drawings. The words "shall be." shall be supplied by inference where a colon (J is used within sentences or phases. Except an worded ro the contrary, all indicated ralu nements shall be performed whether stated unWradvety os othensnae. E. Questions and counts concerning theses Specifications should be directed to the City Engineeres Office, 125 W. Mountain St., Fayetteville, Arkansas, ]2]01 (619)5]5-8206. IO2 DEFINITIONS A. City —The City ofFayeueville. B. Engineer—The Engineerofrecord for the Owner or City C. Owner—Any Individual, partnership,firm,corpradon orother entity who, an property owner,is initiating the work. D. Provide—Furnish and house],complete in place,operating,teased and approved. E. Products —The materials, systems, and equipment provided by the Contactor. turom= 2 L03 SUBMITTALS A. Initial submittal for review shall be in PDP fortes[ B. Five hard copies, and one PDP copy of submittal documents must be cent to the Engineer. C. The Engineer of Record shag submit permitted submittal documents to the City of Fayeltevile before releasing them to the contractor. Legible started copies wilt be pamilted for review. The City of Fayetteville reserves the right to make corrections ae necessary te ®sore compliance with these specifications. D. Conshucam preoedures other than those outlived m these specifications shall be submitted for approval of the City of Fayetteville. E. Complete specifications covering any unusual or special construction procedures shall be submitted fm approval and approval mus[ be received prior to beginning any conshatiw operations. F. A minimum review dome ofMe(2) weeks shall be nxidned on all submittals. L04 MAAITEIVANCE BOND A. Once the City aarepts the project fm ownemMp, the Owner shall be responsible fm the provision to the City of a two (2) year maintenance bond fm 50 percent of the conatrucam cwt of water lives and sewer lives, which shall cover defects in materials and workmanship. A walk-through shall be performed a the one of the two year period and all deficiencies conected prior to release of the bond City maintenance shall begin after expiration of the Two(2) year Maintenance Bond B. If Insta0ation of water lives and sewer lives is in conjunction with a development project that includes other public works improvements such as sheets, drainage, M., [hen the maintenance bond shall be supplied for a period of two (2) yeam A the percentage of wnstratiw as outlived in the current City Ordinance. 1000m. 3 (THIS PAGE INTENTIONALLY LEFT BLANK) END OF SECTION 1000 lowm, 4