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NC0086550_Engineering Alternatives Analysis 1997_19971027
r • e ' WASTEWATER TREATMENT & DISPOSAL ENGINEERING ALTERNATIVES ANALYSIS FOR THE TOWN OF FAIRMONT ' ROBESON COUNTY, NORTH CAROLINA ' ,ol Z7lq 7 ' PREPARED BY HOBBS, UPCHURCH & ASSOCIATES, P.A. 290 S.W. BROAD STREET SOUTHERN PINES, NORTH CAROLINA OCTOBER, 1997 1 ' WASTEWATER TREATMENT& DISPOSAL ' ENGINEERING ALTERNATIVES ANALYSIS TOWN OF FAIRMONT ' TABLE OF CONTENTS ' Page I. Introduction 1 tII. Alternatives Considered 2 ' III. Analysis of Alternatives 3 IV. Cost Comparisons 6 ' V. Flow Justification 7 VI. Recommendations and Conclusions 8 ' Attachments A. NPDES Permit-Town of Fairmont ' B. Speculative Limits ' C. NPDES Permit Application D. Supporting Information-Land Application of Wastewater ' E. Supporting Information-New Wastewater Treatment Plant I. INTRODUCTION: ' The Town of Fairmont is located in Robeson County in southeastern North Carolina. The area is primarily agricultural in nature. There are several tobacco markets located in ' Town, and the commerce is brisk when the markets are operating. However, the Town has begun to focus on industrial and economic development to counter losses in the farming industry. ' Fairmont currently owns and operates a 500,000 gallon capacity wastewater treatment facility that discharges to Pittman Mill Branch. The plant is a "Walker Process" style ' plant being concentric circular concrete basins with a clarifier in the interior basin and the outer basin split into an aeration basin and digester. The plant is operated under NPDES Permit No.NC0021059. Pittman Mill Branch is considered a low flow receiving stream that affects the discharge limits. The Town currently is required to perform toxicity testing at a concentration of 92%. When the Town began testing for toxicity in 1994, they would pass and fail various tests with no consistency. Through various toxicity evaluations performed by Burlington ' Research, no clear source has been identified; however, ammonia has been suspected as the major contributor. Because the existing treatment plant does not provide adequate treatment, influent ammonia cannot be reduced to the necessary levels. ' In 1994 the Town agreed to go under an SOC (Special Order by Consent) as a result of their toxicity violations. A Preliminary Engineering Report was prepared in 1995 to provide the Town with various options for the resolution of their wastewater discharge violations. This Engineering Alternatives Analysis is an extension of the earlier Preliminary Engineering Report. ' Town of Fairmont Pae 1 Page Hobbs,Upchurch&Associates, P.A. Wastewater Treatment&: Disposal Consulting Engineers ' Alternatives Analysis . 1 ALTERNATIVES CONSIDERED: As mandated, all environmentally feasible alternatives for wastewater treatment and ' disposal must be analyzed. Following are the alternatives considered by the Town of Fairmont: ' A. Pump Wastewater to the City of Lumberton. B. Land Application of Wastewater. ' C. Upgrade of Current Wastewater Treatment Plant and Discharge. D. Construct a New Wastewater Treatment Plant with Discharge to the Lumber River. Each alternative will be studied with respect to capital construction costs, annual operation and maintenance costs and incorporated into present worth cost analysis. A summary of the preliminary design, design calculations and cost estimates will be ' provided for each alternative. 1 1 1 1 Town of Fairmont Page 2 Hobbs,Upchurch&Associates,P.A. ' Wastewater Treatment&Disposal Consulting Engineers Alternatives Analysis , ' I11. ANALYSIS OF ALTERNATIVES: ' The various alternatives for wastewater treatment and disposal will be analyzed for a determination of the most environmentally and economically feasible solution to the ' Town's wastewater treatment needs. The "do nothing" alternative has been excluded as this would violate the terms of the Town's SOC. Following is an evaluation of each of the above listed alternatives: ' A. Pump Wastewater to Lumberton ' In considering a regional alternative for the Town's discharge, pumping their wastewater to the closest system was considered. The closest system to Fairmont is the City of Lumberton. Several conversations between the two municipalities have taken place; however, no agreements were reached. Due to various concerns and lack of flow capacity, Lumberton ' decided that they could not allow Fairmont to discharge to their system. A copy of their letter to the Town that indicates their decision has been included in the appendix of this report. tB. Land Application of Wastewater ' Land application of wastewater in cropped fields following storage in a facultative or anaerobic lagoon is an environmentally feasible option. The relatively high water table and available soils in the area are a concern. ' However, there is land available relatively close to the existing wastewater treatment plant. ' The USGS topographical map and soil survey of Robeson County were used to determine the predominant soils of the area. These soils are from ' the Wagram and Norfolk series and have a moderate permeability of 2.0 - 6.0 in/hr. For purposes of this analysis, the best case permeability of the soils will be used to evaluate cost feasibility. Should this option prove to be economically feasible, a soil survey will be conducted to determine the actual soil permeability. However, if this option proves not to be cost feasible, the soil survey will not be conducted. ' Application of wastewater is typically limited to days when rainfall is less than 0.5 inches. Based on local weather data, storage of 60 days should be ' required. Typically 30 days of minimum storage are required to provide for preliminary treatment. The Cooperative Extension Service and State Review Group typically recommend maximum application rates of 1" per week; however, an application rate of 1.5" per week was selected to evaluate the economics of this alternative. ' Town of Fairmont Page 3 Hobbs, Upchurch&Associates,P.A. Wastewater Treatment& Disposal Consulting Engineers ' Alternatives Analysis The preliminary design data and preliminary cost estimates have been ' included in the attachments of this report. The estimated land required for spray fields and buffers is 540 acres. The estimated cost of this option is $7,840,500.00 including land and professional services. ' C. Expansion of Existing Discharge As stated earlier, the Town of Fairmont currently owns and operates a ' 0.50 MGD wastewater treatment plant that discharges to Pittman's Mill Branch. Pittman's Mill Branch is a tributary of Old Field Swamp located , in the Ashpole Swamp subbasin of the Lumber River. The 7Q10 flow of this stream is zero making this a"no flow" stream. There are several concerns about the existingplant that affect this option. ' p P There is no duality in the current system. The existing plant has only one ' clarifier, one aeration basin, etc. Additionally, during heavy flows, the detention time in the aeration basin is not sufficient to provide adequate treatment. ' If the Town was allowed to expand their discharge to Pittman's Mill Branch, the limits would likely be lowered to 5 mg/l BODS and 2.0 mg/1 ' NH3N. An entirely new wastewater treatment plant would have to be constructed to meet these discharge limits. Additionally, the Lumber River Basinwide Water Quality Management Plan outlines the Division of ' Water Quality's policy for the expansion of discharges into zero flow streams: "It is DEM's (currently DWQ)policy not to allow new or ' expanded discharges into "no flow" streams having a 7Q10 or 30Q2 equal to zero. In addition, existing ' facilities on such streams will be targeted for removal unless it is determined that there are no reasonable ' alternatives." Further, the Basinwide Management Plan lists both Old Field Swamp and ' Ashpole Swamp as impaired waters. Low dissolved oxygen valves have been recorded in these streams. Additional discharge to these waters may further affect water quality. , Based on these environmental concerns, this alternative does not appear to be feasible. The Town has serious concerns regarding the construction , and financing of a new wastewater treatment plant that would discharge to Town of Fairmont Page 4 Hobbs,Upchurch&Associates, P.A. ' Wastewater Treatment& Disposal Consulting Engineers Alternatives Analysis ' a "zero flow" stream. Therefore, this alternative will be eliminated from ' consideration due to environmental concerns. D. New Wastewater Treatment Plant With Lumber River Discharge The remaining alternative for consideration is the construction of a new wastewater treatment plant with a discharge to the Lumber River. The ' Town has requested speculative limits for a discharge to the Lumber River near the U.S. Hwy. 74 crossing. Below is a summary of the limits. A copy of the letter has been included in the attachments of this report. BODS (mg/1) 15.0 ' NH3N(mg/1) 4.0 Dissolved Oxygen(mg/1) 5.0 TSS (mg/1) 30.0 ' Fecal Coliform(#/100 ml) 200 pH(SU) 6-9 Total Phosphorus (mg/1) monitor ' Total Nitrogen(mg/1) monitor Total Residual Chlorine(ug/1) 28 ' The Town has been working with the local property owners and the NC Division of Parks & Recreation to locate a site near the river that can co-exist with the proposed Lumber River Park Headquarters. A site ' acceptable to all parties has been located off U.S. Hwy. 74. A proposed layout has been included in the attachments. The proposed plant will consist of the following components: ' Mechanical Bar Screen Aerated Grit Chamber Aeration Basin(with diffused air) ' Dual Clarifiers Chlorination and Dechlorination Facilities Influent and Effluent Flow Measurement ' Influent and Effluent Pump Station Associated Piping ' The estimated cost of the project is $5,217,640.00 with an annual operation and maintenance budget of$270,420.00. ' Town of Fairmont Page 5 Hobbs,Upchurch&Associates,P.A. Wastewater Treatment& Disposal Consulting Engineers ' Alternatives Analysis IV. COST COMPARISON: Based on our review of the alternatives, there are only two (2) options that should be ' considered from a cost standpoint. Pumping to the City of Lumberton was eliminated due to their unwillingness to accept Fairmont's wastewater. Upgrading the existing plant ' and discharge was eliminated due to environmental considerations. This leaves the alternatives of Land Application and constructing a New Wastewater ' Treatment Facility. The total capital cost and annual operation and maintenance cost of each is summarized in the table below. The present work of each is shown as calculated with an interest rate of 8.5%over 20 years. , Capital Gast Land Application $7,840,500.00 $203,420.00 $9,767,558.69 , New WWTP $5,217,640.00 $270,420.00 $7,779,409.79 Construction of new wastewater treatment facility with a discharge to the Lumber River ' is the most cost feasible alternative based on the present worth analysis. Town of Fairmont Page 6 Hobbs,Upchurch&Associates,P.A. ' Wastewater Treatment& Disposal Consulting Engineers Alternatives Analysis ' V. FLOW JUSTIFICATION: ' The projected flow for the proposed Fairmont regional wastewater treatment plant has been based on Fairmont's projected service area and commitments to new users. A ' breakdown of the projected flows has been included in this report in the following table: Town of Fairmont-Projected Flows Source 1996 2016 Average Peak Average Peak Fairmont Town 243,000 638,000 269,727 708,172 ' Annexed Areas 59,400 148,500 65,933 164,833 Shell Building 100,000 100,000 Orrum ' Town 19,500 48,800 21,667 54,167 School 15,000 37,500 16,650 41,625 Proctorville ' Town 32,800 82,000 36,408 91,019 Boardman Town 37,920 94,800 42,091 105,227 SUBTOTAL 1,265,043 ' Industrial Allowance(10%of existing peak flow) 114,960 ' Allowable Inflow and Infiltration Orrum(24 in miles of pipe x 100 gpd) 2,400 6,000 Proctorville(38 in miles of pipe x 100 gpd) 3,800 9,500 Boardman(29 in miles of pipe x 100 gpd) 2,900 7,250 ' SUBTOTAL 22,750 TOTAL PROJECTED FLOW 1,402,753 ' The average flows as listed in the table for the Town of Fairmont are based on the 1996 flow data. The average flows for the other communities are based on the household usage. The peak flows are based on a 2.5 peaking factor. An unspecified industrial allocation of 10% of the existing peak'flow has been added to the flow projections. Additionally, 100,000 gpd has been allocated for the Town's industrial shell building that is currently not occupied. This allocation is based on industrial prospects that have projected flow usage. Finally, an increase in the amount of ' inflow and infiltration has been included in these flow projections. These inflow and infiltration projections are based on the age of the systems. The total projected flow for the 20 year period is estimated to be 1.40 MGD. Based on current state regulations that require facilities to begin planning for expansions once they ' reach 80% of the capacity of the facility, design flows must be based on this 80% rule. Therefore, the recommended design flow of the proposed Fairmont treatment plant is 1.75 MGD. Town of Fairmont Page 7 Hobbs,Upchurch&Associates,P.A. Wastewater Treatment&Disposal Consulting Engineers ' Alternatives Analysis VI. RECOMMENDATIONS AND CONCLUSIONS: Based on our review of the alternatives available for wastewater treatment and disposal, ' we recommend that the Town pursue construction of a new wastewater treatment facility that will discharge to the Lumber River. This is the most cost feasible solution that is also environmentally feasible. Implementation of this alternative will allow the Town to abandon their existing wastewater discharge, will allow the Orrurn Middle School to abandon their discharge and will allow the Towns of Proctorville and Orrum to begin ' their sewer systems. 1 Town of Fairmont Page 8 Hobbs,Upchurch&Associates,P.A. ' Wastewater Treatment&Disposal Consulting Engineers Alternatives Analysis , ' ATTACHMENTS ' NPDES PERMIT TOWN OF FAIRMONT V, ' Permit No. NCO021059 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT ' PERMIT TO DISCHARGE WASTEWATER UNDER THE ' NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, ' other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Town of Fairmont is hereby authorized to discharge wastewater from a facility located at Fairmont Wastewater Treatment Plant ' Brown Street Fairmont Robeson County to receiving waters designated as Pitman Mill Branch in the Lumber River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, H, and III hereof. This permit shall become effective January 1, 1995 ' This permit and the authorization to discharge shall expire at midnight on December 31, 1999 Signed this day December 6, 1994 ' Original Signed By David A. Goodrich ' A. Preston Howard, Jr., P.E., Director Division of Environmental Management By Authority of the Environmental Management Commission 1 Permit No. NCO021059 SUPPLEMENT TO PERMIT COVER SHEET ' Town of Fairmont ' is hereby authorized to: 1 . Continue to operate an existing 0.50 MGD wastewater treatment facility consisting of a manual bar screen, submersible grit pump, solids cyclone and decanter, influent wetwell and pumps. aeration tank with tine bubble diffusers, aerobic digestor tank,clarifier tank. effluent chlorination and basin, flow meter, cascade post aeration, residual drying beds, and backup generator located at Fairmont Wastewater Treatment Plant. Brown Street, Fairmont, Robeson County (See Part III of this Permit), and2. ' Discharge from said treatment works at the location specified on the attached map into Pitman Mill Branch which is classified Class C-Swamp waters in the Lumber River Basin. 1 1 1 _ 1 Ir t 46 � e t —� ft t t 't` t r 1410 _*. .� _S 1•( �� � ,• T' (:'Y� F. �"�r- /fit, � N 1 LL) D O O 0 1 O W W wj W w w j w w w ui o v� O >, , � � 3 Y > O O a! v U rn d a� m m CD Q, -c z N y C N to u� y h y y N cn 0 E E 0 E 0 0 E E 0 0 E s s cs 0 o o 0 0 0 0 Y , O a:cliv v v v v o o c 3 ti o v y 'r cli 7 Y C m m Y Y m ar C O O d O d O t V 0 O = v w 0 N N D Q 3 O O - N 4 E n- t G6 r O O C Cc ..O n c O 'EL E " cs O ai 'o a a z c y c Z cs a) LL C a to y ?� cs b ' 7 N 'a C .0 Z J j U O o0 cs .. C� C c3 Oy y cz C O 5 w c c E o cCS C a i E E o 2 Q c cm cm w o s , J _, C Lit y 00 o Q. � cz ��q O L� d ci O O C y 7 cz 4 y s L6 ui O z 3 v Cl L i o U.cr c0 U rz c I O `- C4 cm v o m E E oh ( -v y w 4. o o y 00 V 1 a •b CO D ca O O 7 C c0 m C C z O O MM N >% m EG O O L 0 .-. 4 O p GO 'r C '" fl- C •a ea C z C C O y .. �D w O O c0 C Z C C E c3 > O C O + U cn CA w 0 L p H 01 m z L� �+ C �� OO y o N E v 3 > L b E v c 0 o 0 0 0 ° `° °v° > o o c cd J a 04 X v E c 0 y 0 CD C3 y c >' cs E C d L _ .E 50 m O CL o o y > > o _ 5 o > v o tr � cs 1 s D Z m o aNi t 00 ?� `n cs E _ D oD �n U) o U U X Z 4 OD c M �. * G a� Do0 0 = O d O 0 0 O 0 L (n T * * = 1 ' miN �?I Part III Permit N .o C( OS9 tE. CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT(QRTRLY) ' The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in: 1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay Procedure - Revised *September 1989) or subsequent versions. The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality is 90% (defined as treatment two in the North Carolina procedure document). ' The permit holder shall perform quarterly monitoring using this procedure to establish compliance with the permit condition. The first test will be performed after thirty days from the effective date of this permit during the months of February, May, August, and November. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes. All toxicity testing results required as part of this permit condition will be entered on the Effluent ' Discharge Monitoring Form (MR-1) for the month in which it was performed. using the parameter code TGP3B. Additionally, DEM Form AT-1 (original)is to be sent to the following address: ' Attention: Environmental Sciences Branch North Carolina Division of ' Environmental Management 4401 Reedy Creek Road Raleigh, N.C. 27607 Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Environmental Management indicate potential impacts to the receiving stream, this permit may be re-opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum ' control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit suitable test results will constitute noncompliance with monitoring requirements. ' SPECULATIVE LIMITS ' State of North Carolina Department of Environment, Health and Natural Resources ' ~- Division of Environmental Management ` • • James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary ' A. Preston Howard, Jr., P.E., Director p F= H N ■ o April 20, 1995 Ms. Helen Lockley, Manager Town of Fairmont Post Office Box 248 Fairmont, North Carolina 28340 Subject: Town of Fairmont Waste Water Treatment Plant ' NCO021059 Subbasin: 03-07-54 Robeson County Dear Ms. Lockley: ' I am writing in response to your letter requesting speculative limits for a proposed relocation and expansion of the Town of Fairmont's wastewater treatment plant. The wastewater discharge from this facility currently flows into the Pitman Mill Branch which is located in the Ashpole Swamp ' watershed. The proposed relocation is to the Lumber River mainstem at Highway 74 near the Boardman gage. As part of the preparation for the Lumber River Management Plan, the USGS developed a low flow profile for the Lumber River which includes flow statistics at the Boardman gage. The following represents those determinations: Drainage Area: 1,228 miles2 ' summer 7010: 122 cfs winter 7010: 250 cfs 0 average: 1,300 cfs 3002: 304 cfs ' The recommendations made in this letter reflect management strategies for the Lumber River Basin. The Lumber River Basinwide Water Quality Management Plan describes the swamp-like conditions which exist throughout most of the watershed. A good example is the Lumber River ' mainstem downstream from Lumberton where DO concentrations approach 3 mg/I. This is considerably lower than the rest of the river's mainstem and is well below the state standard of 5 mg/I. It is difficult to determine to what extent these low DO concentrations are natural or should ' be attributed to point source discharges of oxygen-demanding wastes located just upstream. At this time, DEM, (Division of Environmental Management) does not have an adequate tool to evaluate these swamp systems. To address the uncertainty surrounding the water quality in the Lumber River and the lack of a modeling tool, a permitting strategy was developed. Therefore, ' recommendations for all new dischargers to the Lumber River watershed will receive advanced secondary limits unless facilities are relocated to an area where more stringent limits are already in place. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10%post-consumer paper , Town of Fairmont WWTP N00021059 1 !. The tentative limits for the Fairmont WWTP expansion from from 0.500 mgd to 2.0 med at Highway 74 near the Boardman gage on the Lumber River are as follows: ' Row (mgd): 2-0 BODS (mg/1): 15.0 t NH3-N (mg/1): 4.0 Dissolved Oxygen (mg/I): 5.0 Total Suspended Solids (mg/1): 30 Fecal Coliform (#/100m1): 200 ' 1H (SU): 6-9 Total Phosphorus (mg/1): monitor Total Nitrogen (mg/I): monitor ' Total Residual Chlorine (}ig/I): 28 Quarterty Chronic"Ceriodaphn.a) Toxic 'Test a` 7.F o� February, May,August,and November ' Please be advised that response to this request does not guarantee that the Division will issue an NPDES permit to discharge treated wastewater into these receiving waters. It should be noted that a new facility involving an expenditure of public funds or use of public (state) lands and having ' a design capacity of 0.5 MGD or greater (or a facility proposing an expansion of 0.5 MGD or greater), or exceeding one-third of the 7Q10 of the receiving stream will require the preparation of an environmental assessment (EA) by the applicant. DEM will not accept a permit application for a project requiring an EA until the document has been approved by the Department of ' Environment, Health and Natural Resources and a Finding of No Significant Impact (FONSI) has been sent to the state Clearinghouse for review and comment. The EA should contain a clear justification for the proposed facility and an analysis of potential ' alternatives which should include a thorough evaluation of non-discharge alternatives. In addition, an EA should show how water reuse, conservation and inflowlinfiftration reductions have been considered. Nondischarge alternatives, such as spray irrigation, water conservation, inflow and infiltration reduction or connection to a regional treatment and disposal system, are considered to be environmentally preferable to a surface water discharge. In accordance with the North Carolina General Statutes, the practicable waste treatment and disposal alternative with the least adverse impact on the environment is required to be implemented. If the EA demonstrates ' that the project may result in a significant adverse affoct on the quality of the environment, an Environmental Impact Statement would be required. Monica Swihart of the Water Quality Planning Branch can provide further information regarding the requirements of the N.C. Environmental Policy Act. Please note that Inflow and Infiltration is still a concern for the existing facility. Contact with our Regional Office indicates that ongoing efforts to remedy these problems are taking place. ' Toxic specific limits have not been reviewed in this speculative analysis. The Technical Support Branch would recommend coordination between your staff and our Pretreatment Staff to determine possible toxicants involved in this proposed discharge. Our current information indicates that no Significant Industrial Users, (SIU's) are currently tied into your plant. A complete evaluation of limits and monitoring requirements for metals and other toxicants will need to be addressed at the time of a formal NPDES application. ' Under current Division of Environmental Management (DEM) procedure, dechlorination and chlorine limits are recommended for all new or expanding dischargers proposing the use of chlorine for disinfection. An acceptable level of residual chlorine in the proposed discharge is 28 pg/I for protection against acute toxicity. The process of chlorination / dechlorination or ultra ' violet radiation may all;v, the facility to comply with the total residual chlorine limit. Town of Fain-nom, WWTP NCO021059 Again, please note that these limits ares speculative and are P for planning purposes only. The final NPDES effluent limitations will be determined after a formal permit application has been submitted ' to the Division of Environmental Management. If there are any additional questions concerning this matter, please feel free to contact Farrell Keough, (ext. 51 o) or me, (ext. 519) at (9 19) 733 - 5083. ' Sincerely, SonalcZS,a,frit, P. Assistant Chief for Technica Support Water Quality Section ' cc: Dave Goodrich, NPDES Permits Group Paul Rawls, Fayetteville Regional Office Central Files 1 1 t ' NPDES PERMIT APPLICATION ' 00)c2'il( CAPOLINA DL-'P-r. OF NATUI_�AL R1—'-SOURCES AAD COK'-1UNITY DEVELOPhIE'.]T ENVIRONMENTAL MANAGEMENT COMMISSION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM FOR AGENCY USE APPLICATION FOR PERMIT TO DISCHARGE WASTEWATER STANDARD FORM A - MUNICIPAL tSECTION I- APPLICANT AND FACILITY DESCRIPTION Unless otherwise specified on this form all items are to be completed. If an item Is not applicable Indicate'NA• ' ADDITIONAL INSTRUCTIONS FOR SELECTED ITEMS APPEAR IN SEPARATE INSTRUCTION BOOKLET AS INDICATED. REFER TO BOOKLET BEFORE FILLING OUT THESE ITEMS. Please Print or Type ' 1. Legal Name of Applicant 101 Town of Fairmont (see Instructions) 2. Mailing Address of Applicant (see Instructions) Number & Street iota 421 S. Main Street City 10 b Fairmont ' State toxo. North Carolina Zip Code 102d 28340 ' 3. Applicant's Authorized Agent (see Instructions) Jeffrey G. Lewis Name and Title t03a.. Mayor Number & Street 103b 421 S. Main Street City 173c' Fairmont state ip3d; North Carolina Zip Code 103 28340 Telephone 103f 910 628-9766 Area Number 4. Previous Application - Code If a previous application for a per- mit under the National Pollutant ' Discharge Elimination System has ; been made,glue the date of application. 104 YR MO DAY 1 certify that I am familiar with the Information contained In this application and that to the best of my knowledge and belief such Information Is true,complete, and accurate_ Jeffrey G. Lewis _ iota Mayor ' Printed Name of Person Signing Title ' IO2f YR MO DAY Stgrsat r f App1 nt o uthorized Agent Date Application Signed �o Carolina General Statute 143-215.6(b) (2) provides that: Any person who knowingly make ,y false statement representation, or certification in any application, record, report, plan other document files or required to be maintained under Article 21 or regulations of the ' -jvironmental Management Commission implementing that Article, or who falsifies, tampers with r knowingly renders inaccurate any recording or monitoring device or method required to be _nzerated or maintained under Article 21 or regulations of the Environmental Management commission implementing that Article, shall be guilty or a misdemeanor punishable by a fine -Dt to exceed $10,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. miction 1001 provides a punishment by a fine or not more than $10,000 or imprisonment not -.re than 5 years, or both, for a similar offense. ) FOR AGENCY USE S. Facility (see instructions) Give thename, ownership, and physi- ' cal local l on of the plant or other operating facility where discharges) Currently Proposed Presently occur(s)or will occur. Name toe, Town of Fairmont WWTP Town of Fairmont Regional WWTP 'Brown Street Near US 74 @ Lumber River Fairmont, Robeson Co. Robeson County Ownership (Public, Private or ' Both Public and Private). 1051W. ®PUB ❑PRV ❑ BPP Check block if a Federal facility 1Cb62 ❑FED . and give GSA Inventory Control ' Number 105d' Location: 421 S. Main Street Number 6 Street -_1050 , City losr`. Fairmont County ItlS9: Robeson ' State 105.6 North Carolina 6. Discharge to Another Municipal - Facility (see instructions) , a. Indicate if part of your discharge 10;a:,. ❑Yes ®No Is into a municipal waste trans- port system under another re- sponsible organization. If yes, complete the rest of this item ' and continue with Item 7. If no, go directly to Item 7. b. Responsible Organization Receiving Discharge _ N/A ' Name i06A Number is Street Ib6C ' City fQBd:i State s2Qef Zip Code c- Facility Which Receives Discharge 1Gti4 N/A Give the name of the facility (waste treatment plant) which re- ' celves and Is ultimately respon- sible for treatment of the discharge from your facility. - d. Aver •N/A t Average Daily Flow to Facility '�1"Q�:.. mqd (mgd) Give your average dally . . flow Into the receiving facility. Facility Dlsc-Barges,Number and ' Discharge Volume (see Instructions) Specify the number of discharges described In this application and the ' volume of water discharged or lost to each of the categories below- Estimate average volume per day In million gallons per day. Do not In- clude Intermittent or noncontinuous overflows, bypasses or seasonal dls- charges from lagoons,holding Ponds. etc- T_7 1 FOR AGENCY USE Number of Total Volume DISCharged, Discharge Points Million Gallons Per Day ' To: Surface Water 107,1 1 1107.2 0.50 Surface Impoundment with ' no Effluent 107bl 107b2 Underground Percolation 10701 107C2 Well (Injection) 107d1. 10742 Other 10761 1Q7t2. Total Item 7 1076 -107f2 ' If 'other' Is specified,describe 107g1 If any of the discharges from this facility are Intermittent. Such as from overflow or bypass points, or are seasonal or periodic from lagoons, holding ponds,etc.,complete Item 8. - ' 8. Intermittent Discharges a. Facility bypass points N/A Indicate the number of bypass 1082 points for the facility that are discharge points.(see instructions) ' b. Facility Overflow Points N/A Indicate the number of overflow lOBh points to a surface water for the facility (see Instructions). C. Seasonal or Periodic Discharge - NSA Points Indicate the number of 1090- points where seasonal discharges occur from holding ponds, - ' lagoons, etc. 9. Collection System Type Indicate the type and length(in f0/ia miles) of the collection SyStemUsed by this facility. (see instructions) Separate Storm ❑SST ' Separate Sanitary '. ®SAN Combined Sanitary and Storm ❑CSS Both Separate Sanitary and Combined Sewer Systems - ❑BSC Both Separate Storm anC Combined Sewer Systems I"b E]SSC Length _ 21'38 miles 10. Municipalities or Areas Seed Actual Population (see Instructions) _ Name Served ' lids Town of Fairmont I10b` 2572 1102 Town of Proctorville t1p1y 172 ' 1102 Town of Orrum i t oa 110 110. Town of Boardman 110b 211 1102 llOb Total Popuiat,en Served 110c 3065 — - FOR AGENCY USE 11. Average Daily Industrial Flow I ' Total estimated average dally waste I 111 I _ 0 mgd flow from all Industrial sources. Note: All major Industries (as defined in Section IV) ' discharging to the municipal system must be listed in Section IV, 12. Permits,Licenses and Applications List all existing, pending or denied permits,licenses and applications related to discharges from this facllity.(see Instructions) For Type of Permit I Date Date Date Expiration Issuing Agency Agency Use ID Number Filed Issued Denied Date or License YR/MO/DA YR/MO/DA VR/MO/DA YR/MO/DA tit aI} ">rutl (b) ' NC DWQ NPDES INCO021059 - 95/1/1 N/A 99/12/31 2. 1 3. 1 13. Maps and Drawings Attach all required maps and drawings to the back of this application. (see Instructions) , 14. Additional Information t14L Item Number Information ' 7 The existing WWTP and discharge location will be abandoned as part of a USDA-Rural Development Project. The new plant will be constructed ' near the Lumber River off U.S. Hwy. 74. The new discharge will be to the Lumber River. ' 1 1 1-4 STANDARD FORM A—MUNICIPAL FOR AGENCY USE ' SECTION II- BASIC DISCHARGE DESCRIPTION Complete this section for each present or proposed discharge Indicated in Section I,Items 7 and 8,that is to surface waters. This includes discharges to other municipal sewerage systems In which Use waste water does not go through a treatment works prior to being discharged to surface waters. Discharges to wells must be descrlbed where there are also discharges to surface waters Isom this I3clllty. Separate descriptions of each discharge are required even if several discharges originate In the same facility. All values for an existing discharge should Ise representative of the twelve previous months of Operation. 11 this is a proposed discharge,values should reflect best engmeeri ng estimates. ADDITIONAL INSTRUCTIONS FOR SELECTED ITEMS APPEAR IN SEPARATE INSTRUCTION BOOKLET AS INDICATED. REFER TO BOOKLET BEFORE FILLING OUT THESE ITEMS, 1. Discharge Serial No. and Name a. Discharge Serial No. I 203a 001 (see instructions) b. Discharge Name 201b .Pittman Mill Branch Give name of discharge. If any (see instructions) C. Previous Discharge Serial No 2010 001 II a previous NPDES permit application was made for this dis- charge (Item 4, Section I) provide previous discharge serial number. ' 2. Discharge Operating Dates a. Discharge to Begin Date 2023 If the discharge has never YR MO occurred but is planned for some future date,give the date the ' discharge will begin. b. Discharge to End Date If the dis- I 202b 99 10 charge is scheduled to be discos- YR MO ' tinued within the next 5 years, give the date(within best estimate) the discharge will end- Give rea- son for discontinuing this discharge in Item 17. I 3. Discharge Location Name the `-^•. �' political boundaries within which ... Agency Use the point of discharge is located: ' State 203a North Carolina 203d County 203b Robeson ' (if applicable) City or Town 203r,... Fairmont - oN , 4. Discharge Point Description (see instructions) Discharge is into (check one) Stream (includes ditches, arroyos, 204n- USTR and other watercourses) ..a Estuary ❑EST Lake ❑LKE Ocean ❑OCE Well (Injection) ❑WEL Other ❑OTH If 'Other' IS checked. Specify type 204b S. Discharge Point—Lit/Long— State the precise location of the ' point of discharge to the nearest second. (see instructions) Latitude Me 34 DEG. 29 MIN, 29 SEC ' 79 6 21 Longitude aefst DEG- MIN. SEC 11-I This section contains 8 pages. DISCHARGE SERIAL NUMBER FOR AGENCY USE ' 001 G. Discharge Receiving Water Name Name the waterway at the point of 204 discharge-(see Instructions) , For Agency Use For Agency Use M Or Mlnof $tib 2040 3034 11 the discharge Is through an out- fall that extends beyond the shoreline -7f 77 Or Is below the mean low water fine, Complete Item 7. 7. Offshore Discharge ' a. Discharge Distance from Shore 2074 N/A feet b. Discharge Depth Below Water ' Surface 207b feet If discharge Is from a bypass or an overflow point or is a seasonal discharge from a lagoon,holding pond,etc.,complete Items a.9 or 10, as applicable, and continue with item 11. S. Bypass Discharge (see Instructions) , a. Bypass Occurrence Check when bypass occurs Wet weather 20411 ❑Yes [ No ' Dry weather 20112 0 Yes (� No b. Bypass Frequency Give the actual Or approximate number ' Of bypass Incidents per year. Wet Weather 20111bt ' NIA times per year Dry weather 20♦tb2� N/A times per year C. Bypass Duration Give the ' average bypass duration In hours. zest.Wet weather " N/A hours Dry weather 20402. "N/A hours d. Bypass Volume Give the average volume per bypass Incident, In thousand gallons. N/A ' Wet weather 204th thousand gallons per incident Dry weather 204d2 NZA thousand gallons per Incident , a Bypass Reasons Give reasons s. ' why bypass occurs. 201111aLC e N/A Proceed to Item 11. 9. Overflow Discharge (see Instructions) a. Overflow Occurrence Check ' when overflow occurs_ Wet weather 20441 ❑Yes ®No Dry weather '204a2 El Yes [NNo ' b. Overflow Froquency Give the actual or approximate Incidents per year. Wet weatner x0441 N/A times per year Dry weather so4t:2' N/A !Imes per year . .. II-2 DISCHARGE SERIAL NUMBER FOR AQ[NCY Uf[ 001 1 c. Overflow Duration Give the avera gc overflow duration In 11UUIt. N/A well weathor 2090 hours 1 Dry weathor �Fucz N/A Hours d. OverflowVolumeGive the average volume per overflow ' Incident in thousand gallons. - Wet weather ;2alidt N/A thousand gallons per Incident O weather N/A Dry ::�O9dL thousand gallons per Incident Proceed to Item 11 r-r 10. Seasonal/Peri odic Discharges a. Seasonal/Periodic Discharge ' Frequency If discharge Is Inter- NJA limes Der year mlttcnt from a holding pond, lagoon, etc.,glue the actual or approximate number of times this discharge occurs per year. i b. Seasonal " /Periodic Discharge Volume Give the averageN/A thousand gallons per discharge occurrence volume per discharge Occurrence " In thousand gallons. ?x�__;' i > c. Seasonal/Periodic Discharge ami: Duration Give the average dura- -Z[0. days tion of each discharge occurrence In days. e d. Seasonal/Periodic Discharge Occurrence—Months Check the x1..... ❑JAN ❑FEB ❑MAR months during the year when the discharge normally occurs. '+�x`�`= ` ❑APR ❑MAY ❑JUN RE i-i F1111a z4 s '�•`: ❑JUl_ ❑AUG ❑SEP - ❑OCT ❑NOV ❑DEC ' 11. Discharge Treatment a. Dischars, Treatment Desc riptlon Describe waste abatement prac- tices used on this discharge with ; a brief narrative. (See Instruc- lions) F #M: Treatment consists of an influent trash basket, aerated grit chamber, influent pump station, single walker process style unit (including aeration basin, clarifier & digester) chlorine contact chamber & post aeration. i i 1 11_Z 1 DISCHARGE SERIAL NUMBER ' FOR AGENCY USE 001 b. Discharge Treatment Codes ' Using the codes listed in Table 1 211b S, GA, ASR, PG, DD, B of the Instruction Booklet, describe the waste abatement Processes applied to this dis- charge in the order In which they occur,If possible. Separate all codes with commas ' except where slashes are used to designate parallel operations. If this discharge Is from a municipal waste "•f treatment plant(not an overflow or bypass),complete Items 12 and 13 ? r:a•' 4 .2 iE 12. Plant Design and Operation Manuals +': Check which of the following are 4. currently available ' a. Engineering Design Report 7.71tsC1 ' b. Operation and Maintenance Manual '4iiW El �. .<. 13. Plant Design Data(see Instructions)) ' a_ Plant Design Flow(mgdJ 0.50�.�°�.. mgd . 85 b. Plant Design BOD Removal (%) L Plant Design N Removal (X) z17a N/A % ' d- Plant Design P Removal (x) <�.tJN/A % - e. Plant Dcslgn SS Removal (%) 2134 85 % ' L Plant Began Opvntlon (Ye-ar) 1213f" 1772 g. Plant last Major Revision (year) '113-� i985 tioA&14 ': • 1 114 1 DISCHARGE SERIAL NUMBER 001 FOR AGENCY USE 14. Oescrlptlon of Influent and Effluent(see Instructions) Influent Effluent d r 'rte 2 c Parameter and Code ¢ ¢ > > o ' 214 u = St [s. O > > ?G 7 C a > a > as x ¢ a zQ in (1) (Z) (3) (4) (5) (6) (7) Flow Million gallons per day 0.420 0.420 0.243 0.638 CONT 365 N/A 50050 pH 7.25 7.91 1/7 55 G Units ' 00400 ><I>< Temperature(winter) eF N/A 59. 15 54.81 66.02 1/7 52 G 14028 Temperature(summer) ° F N/A 72.51 60.57 79.30 1/7 52 G ' 74027 Fecal Streptococci Bacteria Number/100 ml 74054 XXX N/A N/A N/A N/A (Provide if available) Fecal Coliform Bacteria ' Number/100 ml 168.9 1/7 52 G 74055 (Provide if available) Total Coliform Bacteria Number/100mI /A N/A N/A N/A 74056 (Provide if available) BOD 5-day mg/l 117.00 21.00 10.46 35.68 Weekly 52 G 00310 ' Chemical Oxygen Demand (COD) mg/I N/A 62.00 20 299 1/12 12 C 00340 (Provide if available) OR Total Organic Carbon(TOC) N/A N/A N/A N/A N/A N/A N/A ' 1 006 00680 (Provide if available) (Either analysis is acceptabk) Chlorine—Total Residual mg/1 N/A 0.36 0.29 0.45 2/7 104 G 50060 11-5 DISCHARGE SERIAL NUMBER ' FOR AGENCY USE 001 .11111 IN 14. Description of Influent and Effluent(see instructions) (Continued) ' Influent Effluent Parameter and Code > > o o ° o .G T c ' 3 > o0u Q � E Z Q rn (1) (2) (3) (4) (5) (6) (7) ' Total Solids mg/I N/A N/A N/A N/A N/A N/A N/A 00500 ' Total Dissolved Solids mg/t N/A N/A N/A N/A N/A N/A N/A 70300 Total Suspended Solids mg/I 96.04 18.50 9.90 31.00 1/7 52 C 00530 ' Settleable?latter(Residue) N/AN/A N/A N/A N/A A ml/1 N/A N/ 00545 Ammonia(as N) ' mg/1 15.72 9.10 3.17 20.65 1/30 12 C 00610 (Provide if available) ' Kjeldahl Nitrogen mg/I N/A 14. 13 9.00 20.7 1/90 4 C 00625 ' (Provide if available) Nitrate(as N) mg/I N/A N/A N/A N/A N/A N/A N/A 00620 (Provide if available) Nitrite(as N) ' 00615 N/A N/A N/A N/A N/A N/A N/A (Provide if available) Phosphorus Total(as P) ' mg/1 00665 N/A 0.52 0.30 0.66 1/90 4 C (Provide if available) ' Dissolvtd Oxygen(DO) mg/1 00300 8.72 8.36 9.58 1/7 52 G ll-6 1 DISCHARGE SERIAL NUMBER FOR AGENCY USE ' 001 IS. Additional Wastewater Characteristics ' Check the box next to each parameter if it is present in the effluent.(see instructions) Parameter Parameter Parameter ��, (215) _ (215) (115) 04 a Bromide Cobalt Thallium 71870 01037 01059 Chloride Chromium Titanium 00940 01034 01152 Cyanide Copper Tin ' 00720 01042 01102 Fluoride Iron Zinc ' 00951 01045 01092 Sulfide Lead Algicides` 00745 01051 74051 ' Aluminum Manganese Chlorinated organic compounds' 01105 01055 74052 ' Antimony Mercury Oil and grease 01097 71900 OOS50 Arsenic Molybdenum Pesticides• 01002 01062 74053 ' Beryllium Nickel Phenols 01012 01067 32730 Barium Selenium Surfactants 01007 01147 38260 Boron Silver Radioactivity" 01022 01077 74050 Cadmium ' 01027 ' 'Provide specific compound and/or clement in Item 17,if known. Pesticides(Insecticides,fungicides,and rodenticides)must be reported in terms of the acceptable common names specified in Acceptable Com- mon Names and Chemical Nunes for the Ingredient Statement on Pesticide Labels, 2nd Edition,Environmental Protection Agency,Washington, D.C. 20250,June 1972,as required by Subsection 162.7(b)of the Regulations for the Enforcement of the Federal Insecticide,Fungicide,and ' Rodenticide Act- 11-7 . 1 DISCHARGE SERIAL NUM93ER 001 '16. Plant Controls Check If the follow- Ing plant controls are avallablo FOR AGENCY USE for this dlscharye Allereiate poww source for major pumping facility Including those for collection system lift stations APS Alarm for power or equipment failure - O.ALM 17. Additional Information Item r ni ' 2s. Inforatlon :? Numbe 26 Dischar a 001 will be abandoned ( lu ed) when Dischar e 2 is on-line. ' r r - pp � II-O •1'. S-GOVERNMENT PRWTING OFFICE;1973 0-509-47: STANDARD FORM A—MUNICIPAL FOR AGENCY USE ' SECTION H. BASIC DISCHARGE DESCRIPTION I]= Complete this section for each present of proposed discharge Indicated in Section 1,Items 7 and B,that is to surface waters- This includes discharges to other municipal sewerage systems In which the waste water docs not go through a treatment works prlOr to being discharged to surface waters. Oischarges to wells must be described where there are also discharges to surface waters from this lAcIllty. Separate descriptions of each discharge are required even if several discharges originate in the same facility. All values for an existing discharge should be represenlatrve of the twelve previous months of operation. If this is a proposed discharge,values should reflect best engineering estimates. ADDITIONAL INSTRUCTIONS FOR SELECTED ITEMS APPEAR IN SEPARATE INSTRUCTION BOOKLET AS INDICATED. REFER TO ' BOOKLET BEFORE FILLING OUT THESE ITEMS. - 1. Discharge Serial No.and Name a. Discharge Serial No. I 201a 002 - (see instructions) b. Discharge Name zola Lumber River Discharge Give name of discharge. If any (see Instructions) c- Previous Discharge Serial No 201e N/A If a previous NPDES permit application was made for this dis- charge (Item 4, Section I) provide previous discharge serial number. ' 2. Discharge Operating Oates 99 10 a. Discharge to Begin Date 202a If the discharge has never YR Mo Occurred butis planned for some ' future date,give the date the discharge will begin. b. Discharge to End Date If the dis I 202b � charge is scheduled to be discon- YR MO tinued within the next 5 years. give the date(within best estimate) the discharge will end. Give rea- son for discontinuing this discharge ' in Item 17. I 665..5,v J. Discharge Location Name the political boundaries within which Agency Use ' the point of discharge Is located: State 203a North Carolina .2=d County 102b Robeson County -.034. (if applicable) City or Town ';2A�o�. N/A 4. Discharge Point Description (see Instructions) Discharge is into(check one) Stream (includes ditches,arroyos, �,20A. b STR and other watercourses) Estuary _-s =°-!<` ❑EST Lake ' ❑LIKE Ocean ❑OCE Well (Injection) ❑WEL Other ❑OTH ' If Other' .s Checked, specify type 204b S. Discharge Point —Lal/Long, Stale the Precise location of the point Of discharge to the nearest second. (see instructions) Latitude 2056 34 DEG. 35 MIN. 52 SEC l_ongltuce 2cab 78 DEG- 58 MIN_ 04 SEC 11-1 - This section contains 8 pages. DISCHARGE SERIAL NUMBER FOR AGENCY USE ' 002 G. Discharge Receiving Water Name Name file waterway at the point of 204A Lumber River discharge.(see Instructions) For Agency Use For Agency Use IV1 M Motor 3a b 2044 303e If the discharge Is through an out- 20ib fall that extends beyond the shoreline or Is below the mean low water line, complete Item 7. 7. Offshore Discharge a. Discharge Distance from Shore 207& N/A feet b. Discharge Depth Below Water , Surface d2o7b N/A reef If discharge Is from a bypass or an overflow Point or Is a seasonal discharge from a lagoon,holding pond,etc.,complete Items 8.9 or 10. As applicable, and continue with Item 11. e. BYPASS Discharge (see Instructions) ' a. Bypass Occurrence Check when bypass occurs Wet weather _ a.>tt ❑Yes )U No ' Dry weather twits 0 Yes gg No b. Bypass Frequency Give the actual or approximate number ,�;:�..N, of bypass Incidents per year. Wet Weather ' f- N/A times per year Dry weather ���. N/A times per year s .:; C. ©YPasS Duration Give the average bypass duration In hours. Wet weather . :aloe N/A hour: ' Dry weather 20>RC2r 'N/A hours d. BYPASS Volume Glve the :_,..... average volume per D YDass Incident,�r:,x:'" :,, ' In thousand gallons_ s. Wet weather N/A`� � thousand gallons per Incident Dry weather " NIA>< -� thousand gallons per Incident f a Bypass Reasons Glve reasons kk �i =. why bypass occurs, f^b_`, N/A a. 9a, s jf Proceed to Item 11. -•y-f 9. Overflow Discharge (fee instructions) x a. Overflow Occurrence Check when overflow occur— Wet weather weather 20121 ❑Yes )a No Dry weather -20ie2 Dyes )[3No , b. Overflow Frequency Glv"the actual Or Approximate Incidents per year. Wet weather -A pot: N/A it mas per year WINE Dry weatnorb2' N/A times per year aciSf'"Yi::. ' II-2 1 1 DISCHARGE SERIAL NUMBER FOR AO[NCY USK 002 c. Overflow Ouration Give the average overflow duration In huu's. Wel weather 209rl N/A-hours ' Dry weather �x20?CZN/A Hours d. Overflo—Volume Give the average volume per overflow Incident In thousand gallons. Wet weather a��Qp�} WA thousand gallons per Incident Dry weather .-f O�tlit NIA thousand gallons per Incident Proceed to Item 11 ""•'" •a x 10. Seasonal/Periodic Discharges a. Seasonal/Periodic Discharge - -= ` N/A 3:1'fE limes per year Frequency if discharge is inter• mlttent from a holding pond. lagoon. etc..give the actual or s� . approximate number of times 3` tills discharge occurs peryear. . - b. Seasonal r9e ;i'`_�^_!R-�` /Periodic Olscha Volume Give the averageA. NIA thousantl aliens volug^_occurrence me per dischar 'r3>; ::�'� 9 per discharge occurrence .cfity<x _ In thousand gallons- c. Seasonal/Perlodle Dlseha a - _ft>' Duration Give the average dura- ti Otte, NIA days - tion of each discharge occurrence In days. d. Seasonal/Periodic Dlseha,e Occurrence—Months Check the ;x$t[a't ❑JAN ❑FED ❑MAR months during the year whenxz the discharge normally occurs.-'%`?d`7� -'+Y ❑APR ❑MAY ❑JUN W3 G' :.:. t� ❑JUL ❑AUG ❑SEP ❑OCT ❑NOV ❑DEC I, Discharge Ire-atment a. Diseharye Treatment Deuriptlon '= j:.•;». F Ocscrlbe waste abatemAr en• ac• ' [Ices used .e on this dlscharpwltn `'> r .'= a brief narrative. (See Ins-r c- tions) ' T.<tit t will consist of a mechanically operated w bar screen aerated grit chamber, influent pump ' station, premix basin, dual aeration basins, _secondary & tertiary clarifiers, chlorination, & dechlorination post aeration, effluent pump station, digester, sludge thickener 1 i 1 DISCISARGE SERIAL NUMBER FOR AGENCY VSE 002 b. Oischa rge Treatment Codes Using the Codcs listed in Table I 211b S, M. GA. ASR, PC, DD, T of the Instruction Booklet. describe the waste abatement Processes applied to this dis- charge In the order In which they occur. If possible. Separate all codes with commas except where slashes are used to designate parallel operations. _ `xY If this discharge Is from a municipal waste ' t treatment plant (not an overflowor bypass).complete Items 12 and 13 l .X 12. Plant Design and Operation Manuals ` - Check which of the following are currently available a. Engineering Design Repa[ ❑ b- Operation and Maln tenance1 ManualsrR'., ^1131t`3 ❑ 13. Plant Design Data(see Instructions) 1.75 a. Plant 0csl9n Flow (mgd) mild WIT C 92.5 b. Plant Design BOD Removal ,. w 86.7 :.. C_ Plant Design N Removal (X) - d. Plant Deslgn P Removal (x) `' N/A X .. 85 e. Plant OesJgn SS Removal (%) s % N/A I. Plant Bean Oparatlon (Year) E g- Plant "It Major Revlslon(year) Y N/A 1113 DISCHARGE SERIAL NUMBER 002 FOR AGENCY USE 14- Description of Influent and Effluent(see Instructions) ' Influent Efllucnt u 1 2 ' Parameter and Code > o o u yo 214;3 Q a > > ., c c o f °p i c e E a > a > as x ¢ za ' (1) (2) (3) (4) (5) (6) (7) Flow ' Million gallons per day 1.75 1.75 N/A N/A Cont. N/A /A 50050 PH Units N/A N/A ARP N/A kRP ' 00400 Temperature(winter) 74028 N/A 60 N/A N/A ARP N/A RP ' 74 Temperature(summer) eF N/A 80 N/A N/A ARP N/ARP ' 74027 1 - r Fecal Streptococci Bacteria Number/100 ml N/A N/A N/A /A ' 74054 (Provide if available) Fecal Coliform Bacteria Number/100 ml N/A ARP N/A RP 74055 (Provide if available) ' Total Coliform Bacteria Number/100 ml N/A N/A N/A N/A XXX 74056 (Provide if available) ' BOD 5-day XXX mg/I 200 15 N/A N/A 'ARP N/A ARP 00310 ' Chemical Oxygen Demand (COD) mg/1 N/A N/A N/A N/A N/A N/A N/A 00340 ' (Provide if available) OR ' Total Organic Carbon(TOC) N/A N/A N/A N/A N/A N/A N/A mg/I 00680 (Provide if available) (Either analysis is acccptab ic) Chlorine—Total Residual mg/I N/A 0.28 N/A N/A ARP N/A ARP ' 50460 ARP — As Required by Permit 11-S DISCHARGE SERIAL NUMBER FOR AGENCY USE 002 ' 14. Description of Influent and Effluent(see InftrUCUO(IS) (Continued) ' Influent Effluent ' > >. a�a� t xJ' u —rj- o Parameter and Code Y o c 4 o > > o o > ' a o a `u SZ a v a E r pc < > <>" .4 < 2< w � z� to (I) (2) (3) (4) (5) (6) (7) , Total Solids mg/► N/A N/A N/A N/A N/A /A N/A 00500 Total Dissolved Solids mg/1 N/A N/A N/A N/A N/A /A N/A 70300 , Total Suspended Solids 200 30 N/A N/A ARP /A ARP mg/l 00530 ' Settleable?latter(Residue) mI/I N/A N/A N/A N/A N/A /A N/A 00545 ' Ammonia(as N) mg/1 30 4 N/A N/A ARP /A ARP 00610 ' (Provide if available) Kjeldahl Nitrogen N/A N/A N/A N/A N/A /A N/A mgjI 006 00625 (Provide if available) Nitrate(as N) ' mg/! N/A N/A N/A N/A N/A /A N/A 00620 (Provide if available) Nitrite(as N) ' mg/1 N/A N/A N/A N/A ARP /A ARP 00615 (Provide if availabk) ' Phosphorus Total(u P) mg/l N/A N/A N/A N/A ARP N/A ARP 00665 (Provide if available) Dissotvdd Oxygcn CDO) m6/l 5.0 N/A N/A ARP N/A ARP I 00300 1>< ARP — As Required by Permit II-g FOR AGENCY USE ' DISCHARGE SERIAL NUMOER 002 ' I5.Addlllonal Wastewater Characteristics Check the box next to each parameter It It Is present In the effluent.(see instructions) ' Parameter — Parameter N Parameter N (215) u (215) (115) a- ' Bromide Cobalt Thallium 71870 01037 01059 ' Chloride Chromium Titanium 00940 01034 01152 Cyanide Copper Tin 00720 01042 01102 Fluoride Iron Zinc ' 00951 01045 01092 Sulfide Lead Algicides* ' 00745 01051 74051 Aluminum Manganese Chlorinated organic compounds* 01105 01055 74052 ' Antimony Mercury Oil and grease 01097 71900 00550 Arsenic Molybdenum Pesticides* 01002 01062 74053 ' Beryllium Nickel Phenols 01012 01067 32730 Barium Selenium Surfactants 01007 01147 38260 Boron Silver Radioactivity* ' 01022 01077 74050 Cadmium ' 01027 ' •Provide specific compound and/or clement in Item 17,if known. Pesticides(Insecticides,fur-6cidcs,and rodenticides)must be reported in terms of the acceptable common names specified in Acceptable Com- mon Names and aemical,%'=nes for the Ingredient Statement on Pesticide Labels. 2nd Edition,Environmental Protection Agency,Washington, D.C. 20250, June 1972, as rzquircd by Subsection 162.7(b)of the Regulations for the Enforcement of the Federal Insecticide,Fungicide,and Rodenticide Act. 11-7 DISC14ARGE SERIAL NUMBER 002 , G. Plant Controls Check If the follow- FOR AGENCY USE Ing plant controls are available for this discharge 2111 ' Allernato no-e,source for ma,or pumping facility Including those for collection system lift station: APS Alarm for power or equipment ' failure - ❑ALM 17. Additional Information item ' :[1 � Number Information Discharge 001 will be abandoned (plugged) when Discharge 2 is on-line. '- • 1 1 f 1 1 p 1 ��_O •l•.S. GOVERNMENT PRINTING OFFICE;1073 0 $04-433 ' FOR AGENCY USE STANDARD FORM A—MUNICIPAL SECTION III- SCHEDULED IMPROVEMENTS AND SCHEDULES OF IMPLEMENTATION This section requires information on any uncompleted Implementation schedule which has been Imposed for construction of waste treatment facilities. Requirement schedules may have been established by local.State,or Federal agencies or by court action. IF YOU ARE SUBJECT TO SEVERAL DIFFERENT IMPLEMENTATION SCHEDULES, EITHER BECAUSE OF DIFFERENT LEVELS OF AUTHORITY IMPOSING ' DIFFERENT SCHEDULES (ITEM lb) AND/OR STAGED CONSTRUCTION OF SEPARATE OPERATIONAL UNITS(ITEM lc),SUBMIT A SEPARATE SECTION Ili FOR EACH ONE. I. Improvements Required FOR AGENCY USE a. Discharge Serial Numbers x00 Affected List the discharge serial numbers,assigned in Sec- tion 11. that are covered by this implementation schedule ' b. Authority Imposing Requirement Check the appropriate Item Indl- catling the authority for the Inv- plementatlon schedule If the ' Identical Implementation sched- ule has been ordered by more than one authority,check the appropriate Items. (see in- structions) ' sates Loc Locally developed plan ❑ARE Areawide Plan ❑BAS Basin Plan State approved Implementatlon d ❑SQS ' schedule Feeral approved water quality ❑w05 standards implementation plan Federal enforcement procedure ❑ENF ' or action ❑CRT _ State court order ❑FED Federal court order ' c. Improvement Description Speclfy the 3-character code for the General Action Description In Table 11 that best describes the Improvements required by the Implementation schedule. It more than one schedule applies to the facility because of a staged cort- structlon schedule,state the stage of construction being described herewith the appropriate general action code. submit a separate Section I I I for each stage of construction planned. Also,list all the 3-character(Speciflc Action)codes which describe In more detail the pollution abatement practices that the Implementation schedule requires. ' 3-character general action NEW description x01C'� 3-character specific action SEC DIS SLD , IPU / FUM descriptions xDleS! / ' 2. Implementation Schedule and 3. Actual Completion Dates Provide dates Imposed by schedule and any actual dates of completion for Implementation steps listed below. Indicate dates as accurately as possible. (see Instructions) ' Implementation Steps 2. Scheduler/Mi(Oay�5 3 Actual Completion(Yr/Mo/Day) a. Preliminary plan complete x02af' y 1 b. Final plan complete :.app: 97 / 12 / 31 t c- Financing complete 6 contract ao2a< 98 / 0/1 / 15 � awarded -- d. Site acquired97 06 30. s e. Begin construction 302t• 98 06 01 �5 s x I. End construction soxt�- 99 �0 /01 ' g. Begin Olscharge soxc 99 / 10 / 15 h. Operational level attained 30Th 99 /_2 /31 This sec(ion contains / page_ III-1 ' FOR AGENCY USE STANDARD FORM A-MUNICIPAL ' SECTION IV. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM ' Submit a description of each major industrial facility discharging to the municipal system.using a separate Section IV for each facility descrip- tion. Indicate the.4 digit Standard Industrial classification(SIC)Code for the industry.the major product or raw material. the flow(In thou- sand gallons per day). and the characteristics of the wastewater discharged from the Industrial facility Into the municipal system. Consult Table III for standard measures of products or raw materials. (see instructions) ' 1• Major Contributing Facility (see Instructions) Name 401a N/A ' Number& Street 401b City 401c ' County 401d State 401e ' Zip Code _ 401f 2. Primary Standard Industrial 402 Classification Code (see ' instructions) Units(See 3. Principal Product or Raw Quantity Table 111) Material (see Instructions) ' Product 4034 . � M. ' Raw Material 403b 4. Flow Indicate the volume of water ' discharged into the municipal sys- 404a thousand gallons per day tem In thousand gallons per day and whether this discharge is Inter- 404b 0 Intermittentint mittent or continuous. ( )❑Contlrwouz(con) ' 5. Pretreatment Provided Indicate If 40S Oyes ONo pretreatment Is provided prior to entering the municipal system 6. Characteristics of Wastewater ' (see instructions) Parameter Name Parameter Number +iCs¢ Value t , 1 1 v 0 865-706 IV-1 This section contains ! page. R tVLANO(U.S.301)13 Ml. ,)O ° n co ,a C r'---------- -it---- ' - �1 � �_ �4 Ind` �• 1• I t R7: � •1' y-�`!r!, � R. lei 'cp 1 4_:All IT 0 to rr "I I kl*t - . X "" W��. s -i= yzi C, if _ ?••oti I I 2 C rrl ° -./ °r�dfa �^ �' • `moi „�..r•a b )ft €I jq rl:l .F - 1 I �.�- _ '//Y//- !` il�;� F#",:•r �� �, �� 1114 '#t# I,# �—��. I�J���'~��^1��` �: I #I#I1 �T I# # �"i� 1�. 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I : } } } } I# #I } II }#I}y '� #i} }y# # I }I## I}If If . II# II }l� SIJ } } I }#I} #I }T'##�.,7. F� ` }FI Fi}I } y # I}I#I} #'}#II }} }I} #11 I #I#I } II '# I if }} f + F 1 - I I } } } } I} #I 1 T # I I } #I ' �} IIIIF � II } } }I ' ! }I } I I } II If if I ,� if 2 c4 ,°tea �. --- o `mss n� }I � ' f if f4 i ILII�}II#}1 I' S } } \ / /j� as �• �-o Irl T-1 b 1 ll ( k 1 0 ;ADE ' NTOIZ ' IN d Or. No QS �o � -c �}e y No Z � Z Z ¢O CL< ' J w 0WF r�z J< <O OJ �Wz o[o r O O Z W D O�Q O< OJ ~W Z O oL INFLUENT <m FORCE MAIN PC fY7t O oz a ' HEAD' 1 II I Z ii o ac FEB., 1997 ocsw+to WRB ' 1 oar,ww: DFW cxcrrQ WRB j AS NOTED vcc,.0 7 0 8 ' SUPPORTING INFORMATION ' Land Application of Wastewater DESIGN CALCULATIONS - LAND APPLICATION ' Town of Fairmont-Alternatives Analysis Later Balance/Storage Information Days< Hydraulic Cumulat. Days> 'Month Days Precip. ET ET-PR PERM 32 Deg. PERC Loading Flow Change Storage .5"Prec. Jan 31 3.76 0.2 -3.56 2 1 57.60 54.04 6.10 -47.94 -47.94 3 Feb 28 3.59 0.5 -3.09 2 0 53.76 50.67 5.51 -45.16 -93.11 3 Mar 31 4.18 1.5 -2.68 2 0 59.52 56.84 6.10 -50.74 -143.85 3 Apr 30 3.33 2.7 -0.63 2 0 57.60 56.97 5.90 -51.07 -194.92 2 ' May 31 4.07 3.3 -0.77 2 0 59.52 58.75 6.10 -52.65 -247.57 3 Jun 30 3.89 5.9 2.01 2 0 57.60 59.61 5.90 -53.71 -301.28 2 July 31 4.89 6.7 1.81 2 0 59.52 61.33 6.10 -55.23 -356.52 3 Aug 31 4.84 5.4 0.56 2 0 59.52 60.08 6.10 -53.98 -410.50 3 Sep 30 3.85 4.6 0.75 2 0 57.60 58.35 5.90 -52.45 -462.95 2 Oct 31 3.16 2.3 -0.86 2 0 59.52 58.66 6.10 -52.56 -515.51 2 Nov 30 2.67 1.2 -1.47 2 0 57.60 56.13 5.90 -50.23 -565.74 2 ' Dec 31 3.39 0.3 -3.09 2 1 57.60 54.51 6.10 -48.41 -614.15 2 �nnual 365 45.62 34.6 -11.02 2 2 696.96 685.94 71.79 -614.15 30 Average 3.80 2.9 -0.92 2 0.167 58.08 57.16 5.98 -51.18 2.5 V- PR+PERC= Maximum Hydraulic Loading PERC=0.04(Permeability)x 24 hrs x Days-Freezing Days) torage=Available Wastewater- Hydraulic Loading Or Storage=Nonspray Days elected Storage 60 days Is"Iw Calculations kesion Flow 1,750,000 gpd pplication Rate 1.5 in/wk ays/Week 5 Operation Cycle-5 Zones Once per Week each onspray Days 30 Application Period 239.29 365 days minus nonspray days x days/wk/7 tpplied Flow 2,669,403 GPD 13.35 million gal/week Acres Required 327.6869 Acres=(Flow)/(27,154 x Application Rate) t 1 1 Application Field/Sprinkler System Design ,Sprinkler selected Senniger application rate=96 x flow/spacing x spacing Pressure 50 psi application rate 0.24074074 in/hr Nozzle Size 0.25 in time of operation=daily app rate/hourly 'Flow 13 gpm 6.23 hrs/d Diameter 125 #nozzles=flow/flow per nozzle Overlap selected 50 % 549.26 'Spacing 62.5 ft diameter x%overlap Selected Spacing 72 ft Actual Overlap 57.6 % L umber of Zones 5 ozzles per Zone 550 total nozzles site 2750 Number of Rows 4 Nozzles per Row 137.5 Length of Pipe per Row 9900 ft Total Pipe Length per Zone 39600 ft total field pipe 198,000 ft 'Selected Diameter 6 inch Wetted Area=[(2 x radius)+(no. rows-1)x(spacing)x 2 x(radius)+(nozzles per row- 1)]minus I [(Diameter^2)-((pi x(radius)^2/4)x(4+(nozzles per row-1)x(rows-1)/2] Wetted Area= 3,218,656 sq.ft. ' 73.89017 acres/zone 369.4508 acres Select 375 acres 'Pump Station Calculations Flow i(hrs of operation x 60) UFlo%N Applied per Day 2.67 MGD s Day Applied 6.23 Pump Size 7140.38 gpm 'Length of Force Main 5500 if Force Main Selected 16 inch Pump Selected 7200 gpm 'Lagoon Requirements Required Volume Qua Depth(ft) (taw (M 'Sludge Zone 2 Treatment Zone 30 3 52,500,000 7,018,717 Storne 30 3 52,500,000 7,018,717 35 N r 24hr Storm 0.5 Freeboard 1 'Total 9.5 105,000,000 14,037,433 1 Berm Side Slope 3 horiz. I vertical length/Width 1.5 length l width rmt. + Storage Depth 6 ft Selected Length 1350 ft water surface 'Width 900 ft water surface Water Surface Area 27.89 acres Trmt.+ Storage Vol. Check 7048944 cf 52726101.1 gallons use 2 lagoons for storage Top of Berm Length 1359 Top of Berm Width 906 of Berm Length 1302 ,Bottom Bottom of Berm Width 868 Total Area 1,231,254 sq ft 28.2657 acres kotal Vol. to Top of Berm 11,091,381 cf 82963527 gallons stimated Excavation 410,792 cy Type of Liner clay treahickness Required 1 ft of Liner 1,364,489 sq ft Volume 1,364,489 cf 50536.62 cy Loven Wire Fence 4590 If Barbed Wire Fence 16566.632 If tuffer Area 400 If outside wetted area (c100)^2x4)+4xc100)x(wetted area sq.ft.)^.5) Luffer 7,106,653 sq ft 163.1463 acre Total = Buffer+ Wetted 538.1463 acre 1 1 HOBBS, UPCHURCH & ASSOCIATES, P.A. Consulting Engineers PRELIMINARY CONSTRUCTION COST ESTIMATE Town of Fairmont-Alternatives Analysis Land Application System Item Description Qty, Unit Unit Price Total Price 1 General - Bonds, Insurance,Administration,Etc. 1 LS $100,000.00 $100,000.00 2 Land Acquisition 540 AC $3,500.00 $1,890,000.00 3 Land Clearing and Grading 375 AC $1,500.00 $562,500.00 4 Crop Planting(Coastal) 375 AC $1,000.00 $375,000.00 5 Barbed Wire Fencing 165,600 LF $1.00 $165,600.00 6 Spray Piping-4" PVC 198,000 LF $4.50 $891,000.00 ' 7 Nozzles- 1/4" 2,750 EA $200.00 $550,000.00 8 Valves-4" PVC 10 EA $250.00 $2,500.00 9 Lagoon Excavation 522,144 CY $2.00 $1,044,288.00 ' 10 Lagoon Liner 50,536 CY $5.00 $252,680.00 11 Lagoon Effluent Box 2 EA $10,000.00 $20,000.00 12 Influent Piping 200 LF $25.00 $5,000.00 ' 13 Woven Wire Fence 4,590 LF $3.00 $13,770.00 14 Irrigation Pump Station 1 LS $300,000.00 $300,000.00 15 Header Piping- 12" 5,500 LF $12.00 $66,000.00 ' 16 Tractor 1 LS $25,000.00 $25,000.00 17 Mower 1 LS $10,000.00 $10,000.00 18 Rake 1 LS $4,000.00 $4,000.00 19 Baler 1 LS $7,000.00 $7,000.00 20 Monitoring Wells 12 LS $1,500.00 $18,000.00 21 Contractor's Overhead and Profit 1 LS $250,000.00 $250,000.00 ' Total Estimated Construction Cost $6,552,338.00 Engineering, Design, and Administration $378,500.00 Construction Management and Inspection $229,300.00 ' Surveying and Mapping $25,000.00 Contingencies $655,362.00 Total Estimated Project Cost $7,840,500.00 1 HOBBS, UPCHURCH & ASSOCIATES, P.A. ' Consulting Engineers OPERATION AND MAINTENANCE BUDGET Town of Fairmont ' Land Application System ' Personnel Services Salaries $100,000.00 FICA $8,000.00 Retirement/Insurance $20.000.00 Subtotal $128,000.00 Operating Expenses Office Exp.& Supplies $3,000.00 Laboratory Supplies $5,000.00 ' Transportation $5,220.00 Electricity $25,000.00 Supplies $20,000.00 Gen. Maintenance $17,000.00 Miscellaneous $200.00 Subtotal $75,420.00 ' Total Estimated Annual Operation and Maintenance Costs $203,420.00 1 SUPPORTING INFORMATION New Wastewater Treatment Plant Job Name: Town of Fairmont W WTP HUA No. FR9605 Date: 18-Aug-97 ' Description: Aeration Basin Sizing and Parameter Calculation Worksheet Formulas: Sludge Age(days)= Suspended Solids In Aeration Suspended Solids To Aeration ' MLSS(mg/1)= Desired Suspended Solids In Aeration Weight Of Water In Aeration MCRT(days)= Suspended Solids In Aeration ' SS In WAS+SS In Effluent Food To Microorganism Ratio= BOD To Aeration ' MLVSS in Aeration ' Input Parameters: Calculated Parameters: %%astewater Flow&Influent Conditions: Calculated Parameters: Peak Wet Weather Flow(mgd)= 4.375 ADF BOD5 Destroyed(Ib/day)=> 2,700 Design Year Flow,ADF(mgd)= 1.750 ADF Ammonia-Nitrogen Destroyed(Ib/day)=> 671 Start-Up Anticipated Flow(mgd)= 0.500 Yr.I BOD5 Destroyed(Ib/day)=> 771 Design Sludge Return Rate(mgd)= 1.000 Yr.I Ammonia-Nitrogen Destroyed(Ib/day)=> 192 Influent BOD5(mg/1)= 200 ' Influent TSS(mg/I)= 200 Oxygen Rates Influent TKN(mg/1)= 50 ADF Actual Oxygen Transfer Rate,AOTR(lb/day)=> 7,138 Effluent BOD5 Required(mg/1)= 15 ADF Standard Oxygen Transfer Rate,SOTR(Ib/day)=> 10,926 Effluent TSS Required(mg/1)= 30 Yr.I Actual Oxygen Transfer Rate,AOTR(Ib/day)=> 2,040 ' Effluent NH3-N(mg/1)= 4 Yr.I Standard Oxygen Transfer Rate,SOTR(Ib/day)=> 3,122 Max Temperature(dee C)= 27 Site Elevation= 100 IIP Required Temperature Correction Theta= 1.024 HP At Average Daily Flow=> 182 ' Saturation D.O.at Temp,Elev Cst(mg/1)= 7.99 HP At Year 1 Flow=> 52 Design Assumptions Reactor Basin Volume(Based on IbBOD/1000 cuff) Design MLSS(mg/1)= 2,800 Volume Required(gals)=> 673,219 Yr.I MLSS(mg/1)= 2,800 Detention Time(hrs)=> 9.23 RAS and WAS Concentration(mg/1)= 8,000 Transfer Alpha Value= 0.90 System Mass Requirements Transfer Beta Value= 0.95 System Mass-BOD x MCRT x Yield(lb)=> 20,251 Mean Cell Residence Time(days)= 10 Volume Required(gal)=> 867,188 Operating Dissolved Oxygen,Co(mg/I)= 2.00 Detention Time(hrs)=> 11.89 Ib BOD5/1000 cu ft Aeration Vol= 30 ' Sludge Yield(lb TSS/Ib BOD5 Destroyed)= 0.75 Selected Volume-Input Value(gals) 870,000 Volatile SS Fraction(NILVSS/MLSS)= 0.65 Selected Basin Evaluation R.vte Coefficients ADF Detention Time(hrs)=> 11.93 Ib Oxygen/lb BODS Applied= 1.50 Yr.I Detention Time(hrs)=> 41.76 Ib Oxygen/lb NH3-N Applied= 4.60 Mixing HP Required=> 174 ADF Process HP Required=> 52 It P Coefficients ADF Food To Mass(lb BOD/Ib MLSS)=> 0.20 ' Ib 02/BHP-Hr= 2.50 Yr. I Food To Mass(lb BOD/Ib MLSS)=> 0.06 BHP/1000 Cu Ft= I.5 ADF Sludge Wasting Rate(gpd)=> 23,888 Yr.I Sludge Wasting Rate(gpd)=> 28,575 Job Name: Town of Fairmont WWTP ' HUA No. FR9605 Date: 18-Aug-97 Description: Clarifier evaluation Formulas: ' Surface Loading Rate(GPD/SF)=Flow Rate(GPD) Surface Area(SF) ' I lydraulic Detention Time(Hrs)=Tank Volume(GALS)x 24 Hr/Day Flow(GPD) Solids Loading Rate(Lbs/Day/SF)=Solids Applied(Lb/Day) ' Surface Area(SF) Weir Overflow Rate(GPD/FT of Weir)= Flow Rate(GPD) Weir Length(FT) Input Parameters: Calculated Parameters: Skaslc"ater Flow: Calculated Diameter: Peak Wet Weather Flow(mgd)= 4.375 Surface Loading Basis(FT)_> 43.09 ' Design Year Flow,ADF(mgd)= 1.750 Solids Loading Basis(FT)_> 29.45 Stan-Up Anticipated Flow(mgd)= 0.500 Weir Overflow Basis(FT)_> 27.85 Design Sludge Return Rate(mgd)= 1.000 Detention Time Basis(FT)_> 49.82 ' Mixed Liquor Suspended Solids Concentration: Minimum Diameter Required(FT)_> 49.82 ADF MLSS(mg/1)= 2,800 Selected Diameter(FT)_> 60.00 Yr.I MLSS(mg/1)= 2,800 Calculated Conditions: Clarifier Parameters: Surface Loading Rate: Number Of Units= 2 Peak Wet Weather(GPD/SF)=> 774 t Sidewater Depth(fl)= Is Design Year,ADF(GPD/SF)=> 309 Design Surface Loading Rate(GPD/SF)= 600 Design Solids Loading Rate(Lb/Day/SF)= 30 Design Weir Overflow Rate(GPD(LF)= 10,000 Design Detention Time(Hrs)= 6 Solids Loading Rate: Peak Flow,ADF MLSS(Lb/Day/SF)=> 18 ADF+RAS,ADF MLSS(Lb/Day/SF)=> I 1 ADF+RAS,Yr.l MLSS(Lb/Day/SF)=> 6 Weir Overflow Rate: ' Peak Wet Weather(GPD/LF)=> 11,605 Design Year,ADF(GPD/LF)=> 4,642 Detention Time: Peak Wet Weather(Hrs)=> 3,48 ' Design Year,ADF(Hrs)_> 8.70 I 1 lob Name: Town of Fairmont WWTP ' HUA No. FR9605 Date: 18-Aug-97 ' Description: Disinfection,Cascade Post Aeration,and Sludge Digestor Calculations Formulas: Cascade Aerator Deficit Ratio,r= Cs-Co Cs-C ' Total Cascade Vertical Drop Rqd (0.11)(a)(b)(1+0.046)(T) Pounds Of Solids Wasted Per Day= (Q Was)(8.34)(MLSS Was) Volume Of Thickened Sludge(gpd)= Pounds Of Solids Wasted Per Day (Thickened Cone-Decant Conc)(8.34) 1 Input Parameters: Calculated Parameters: astewater Flow: Chlorine Contact Calculated Parameters Peak Wet Weather Flow(mgd)= 0200. Peak Volume Required(gal)_> 4,167 ' Design Year Flow,ADF(mgd)= 0.100 ADF Volume Required(gal)_> 2,083 Start-Up Anticipated Flow(mgd)= 0.045 Yr.I Volume Required(gal)_> 938 Number Of Chamber Trains=> 1.00 Chlorine Contact Basin Parameters Required Channel Length(ft)=> 27.85 Design Channel Length(ft)=> 28.00 Required Detention Time(min)= 30 Design Channel Width(ft)_> 2.00 Number Of Chamber Trains= 1 Design Channel Depth(ft)_> 5.00 Design Sidewater Depth in Chamber(ft)= 5 Detention Time At Peak(min)_> 15.08 Design Width of Chamber(ft)= 2 Detention Tlme At Yr.1(min)_> 67.02 Cascade Aerator Input Parameters Cascade Aerator Calculated Parameters ' Dissolved Oxygen Saturation Cs(mg/1)= 9.1392 Height Of Vertical Drop Required(fl)=> I I D.O.Before Cascade Co(mg/1)= 0 Required Effluent D.O.C(mg/1)= 6 Sludge Digestion&Storage Calculated Parameters Coefl'a(1.0 For BOD<=15mg/1)= 1.00 Coeff b(Assume 0.8 For a Step Weir)= 0.80 ADF Pounds Of Soi lids Per Day=> 1,594 Wastewater Temperature(deg C)= 20 Yr.I Pounds Of Soilids Per Day=> 1,907 ADF Thickened Sludge Volume(gpd)=> 8,531 Sludge Digestion&Storage Input Parameters Yr.I Thickened Sludge Volume(gpd)=> 10,205 ADF Annual Sludge Disposal Cost(S/Yr)_> $155,695 ADF Sludge Wasting Rate(gpd)= 23,888 Yr.1 Annual Sludge Disposal Cost(S/Yr)_> $186,248 Yr.I Sludge Wasting Rate(gpd)= 28,575 Target Percent Solids After Thickening= 2.25% Aerobic Digestion 503 Sludge Digestion&Storage Requirements Target Decant Solids Concentration(mg/1)= too Sludge Disposal Cost(S/Gal)= $0.05 ADF Volume Required At 20 Dec C(40 Days)--> 341,250 Yr.1 Volume Required At 20 Dec C(40 Days)=> 408,214 ' ADF Volume Required At 15 Dec C(60 Days)--> 511,875 Yr. I Volume Required At 15 Dec C(60 Days)=> 612,321 1 HOBBS, UPCHURCH & ASSOCIATES, P.A. ' Consulting Engineers ' PRELIMINARY CONSTRUCTION COST ESTIMATE Town of Fairmont-Alternatives Analysis New Wastewater Treatment Facility Item Description Q-ty. unit Unit Price Total Price ' I General - Bonds, Insurance,Administration, Etc. 1 LS $95,000.00 $95,000.00 2 Site Grading, Paving, Fencing, Sidewalks 1 LS $110,000.00 $110,000.00 3 Yard Piping 1 LS $65,000.00 $65,000.00 ' 4 Flow Splitter Box- Weirs,Gates, Etc. I LS $30,000.00 $30,000.00 5 Aeration Basins 1 LS $975,000.00 $975,000.00 6 Dual Clarifiers 1 LS $310,000.00 $310,000.00 ' 7 Air Piping 1 LS $65,000.00 $65,000.00 8 Blowers& Blower Building 1 LS $275,000.00 $275,000.00 9 Chlorine Contact Basin 1 LS $55,000.00 $55,000.00 ' 10 C12,,I-, SO2 Feed Systems 1 LS $35,000.00 $35,000.00 11 Post Aeration 1 LS $12,000.00 $12,000.00 12 Effluent Pump Station 1 LS $125,000.00 $125,000.00 ' 13 Sludge Digestion 1 LS $265,000.00 $265,000.00 14 Sludge Dewatering Facilities 1 LS $85,000.00 $85,000.00 15 Electrical, Mechanical Construction 1 LS $210,000.00 $210,000.00 ' 16 Standby Generator 1 LS $150,000.00 $150,000.00 17 Laboratory and Control Building 1 LS $140,000.00 $140,000.00 18 Plant Instrumentation 1 LS $145,000.00 $145,000.00 Total Estimated Construction Cost $3,147,000.00 Engineering and Design $188,500.00 Construction Management and Inspection $63,800.00 Contingencies $290,000.00 Land $135,000.00 Total Estimated Project Cost $3,824,300.00 t 1 1 HOBBS, UPCHURCH & ASSOCIATES, P.A. Consulting Engineers PRELIMINARY CONSTRUCTION COST ESTIMATE Town of Fairmont-Alternatives Analysis tWastewater Pumping System Item Description QtyUnit Unit Price Total Price ' 1 12" PVC Force Main 50,000 LF $12.00 $600,000.00 2 12" Ductile Iron Piping 1,000 LF $30.00 $30,000.00 3 20" Steel Casing 850 LF $110.00 $93,500.00 4 Pump Station Upgrade I LS $130,000.00 $130,000.00 5 Mechanical Screening I LS $85,000.00 $85,000.00 6 Grit Removal I LS $50,000.00 $50,000.00 ' 7 Odor Control System I LS $45,000.00 $45,000.00 8 12" Plug Valves 9 EA $2,500.00 $22,500.00 9 Air Release Valves 7 LS $2,500.00 $17,500.00 ' 10 Creek Crossings 1 LS $25,000.00 $25,000.00 11 Seeding and Mulching 14 AC $1,500.00 $21,000.00 12 Erosion Control Measures 1 LS $20,000.00 $20,000.00 ' Total Estimated Construction Cost $1,139,500.00 Engineering and Design $88,600.00 Construction Management and Inspection $39,700.00 1 Contingencies $125,540.00 Total Estimated Project Cost $1,393,340.00 1 1 HOBBS, UPCHURCH & ASSOCIATES, P.A. ' Consulting Engineers ' OPERATION AND MAINTENANCE BUDGET Town of Fairmont tNew Wastewater Treatment Facility ' Personnel Services Salaries $100,000.00 FICA $8,000.00 ' Retirement/ Insurance $20.000.00 Subtotal $128,000.00 ' Operating Expenses Office Exp. &Supplies $3,000.00 Laboratory Supplies $5,000.00 ' Transportation $5,220.00 Electricity $60,000.00 Supplies $20,000.00 ' Gen. Maintenance $17,000.00 Miscellaneous $200.00 Sludge Disposal $32,000.00 Subtotal $142,420.00 ' Total Estimated Annual Operation and Maintenance Costs $270,420.00