Loading...
HomeMy WebLinkAboutWQ0020830_Regional Office Historical File Pre 2018 (2)mate of North Carolina Department of Environment and Natural Resources Division of Water Quality Michael F. Easley, Governor William G. Ross Jr., Secretary Gregory J. Thorpe, Ph.D., Acting Director January 24, 2002 W. GARY GARDNER, MAYOR TOWN OF FAITH POST OFFICE BOX 37 FAITH, NC 28041 A7A NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES F E B 2 0, 2002 T.71c. t i Subject: Permit No. WQ0020830 Town of Faith Wastewater Collection Facilities to serve Town of Faith Wastewater Collection System Extension Rowan County Dear Mr. Gardner: In accordance with your application received December 17, 2001, we are forwarding herewith Permit No. WQ0020830, dated January 24, 2002, to the Town of Faith for the construction and operation of the subject wastewater collection system extension. This permit shall be effective from the date of issuance until rescinded and shall be subject to the conditions and limitations as specified therein. This cover Ietter shall be•considered a part of this permit and is therefore incorporated therein by reference. Please pay particular attention to Permit Condition 3 which requires that the wastewater collection facilities be properly operated and maintained in accordance with 15A NCAC 2H .0227 or any individual system- wide collection system permit issued to the Permittee. Permitting of this project does not constitute an acceptance of any part of the project that does not meet 15A NCAC 2H .0200; the Division of Water Quality's (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; and the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable, unless specifically mentioned herein. Division approval is based on acceptance of the certification provided by a North Carolina -licensed Professional Engineer in the application. It shall be the Permittee's responsibility to ensure that the as -constructed project meets the appropriate design criteria and rules. Failure to comply may result in penalties in accordance with North Carolina General Statute §143-215.6A through §143-215.6C, construction of additional or replacement wastewater collection facilities, and/or referral of the North Carolina -licensed Professional Engineer to the licensing board. In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations, permission is hereby granted to the Town of Faith for the construction and operation of approximately 61,478 linear feet of 8-inch gravity sewer and 8,003 linear feet of 10-inch gravity sewer, a 100-gallon per minute pump station (No. 1) with duplex pumps, on -site audible and visual high water alarms, autodialer, and an automatically -activated stand-by generator with automatic reset; a 45-gallon per minute pump station (No. 2) with duplex pumps, on -site audible and visual high water alarms, autodialer, and a portable generator quick -connect receptacle; a 100-gallon per minute pump station (No. 3) with duplex pumps, on -site audible and visual high water alarms, autodialer, and automatically -activated stand-by generator with automatic reset; and a 55-gallon per minute pump station (No. 4) with duplex pumps_, on -site audible and visual high water alarms, autodialer, and portable generator quick -connect receptacle; as well as 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone (919) 733-5083 FAX (919) 715-6048 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper approximately 3,365 linear feet of 4-inch force main, approximately 1,700 linear feet of 3-inch force main, a approximately 555 linear feet of 2-inch force main to serve the Town of Faith (residential, school, church, and commercial sources) as part of the Wastewater Collection Facilities to serve Town of Faith project, and the discharge of 156,400 gallons per day of collected domestic wastewater into the City of Salisbury's existing sewerage system, pursuant to the application received December 17, 2001 and in conformity with 15A NCAC 2H .0200; the Division's Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources and considered a part of this permit. The sewage and wastewater collected by this system shall be treated in the City of Salisbury Wastewater Treatment Facility (Permit No. NC0023884) prior to being discharged into the receiving stream. . This permit, shall become voidable unless the agreement between the Town of Faith and the City of Salisbury for the collection and final treatment of wastewater is in full force and effect: If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and binding. If you need additional information concerning this matter, please contact Kristin E. Miguez at (919) 733-5083 extension 524. Sincerely, i.._ Gregory J. Thorpe, Ph.D. cc: Rowan County Health Department Mooresville Regional Office, Water Quality Section (WWTF Permit No. NC0023884) Tate Lanning & Associates, P.C. City of Salibury (400 North Church Street, Salisbury NC 28144) Central Files NDPU Files NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH WASTEWATER, COLLECTION SYSTEM EXTENSION PERMIT This permit shall be effective from the date of issuance until rescinded and shall be subject .to the following specified conditions and limitations: 1. This permit shall become voidable unless the wastewater, collection facilities are constructed in accordance with the conditions of this permit, 15A NCAC 2H .0200; the Division of Water. Quality's (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting materials unless specifically mentioned herein. 2. This permit shall be effective only with respect to the nature and volume of wastes described in the application and other supporting data. The wastewater collection facilities shall be properly maintained and operated at all times. The Permittee shall maintain compliance with an individual system -wide collection system permit for the operation and maintenance of these facilities as required by 15A NCAC 2H .0227. If an individual permit is not required, the following performance criteria shall be met as provided in 15A NCAC 2H .0227: a. The sewer system shall be effectively maintained and operated at all times to prevent discharge to land or surface waters, and any contravention of the groundwater standards in 15A NCAC 2L .0200 or the surface water standards in 15A NCAC 2B .0200. . b. A map of the sewer system shall be developed prior to . January 1, 2004 and shall be actively maintained. c. An operation and maintenance plan shall be developed and implemented. d. Pump stations that are not connected to a telemetry system shall be inspected at Ieast three times per week until July 1, 2000; thereafter, pump stations shall be inspected at least daily, as defined in 15A NCAC 2B .0503(5), until July 1, 2001; and thereafter, pump stations shall be inspected every day. Pump stations that are connected to a telemetry system shall be inspected atleast once per week. e. High -priority sewer lines shall be inspected at least once per every six-month period of time. f. A general observation of the entire sewer system shall be conducted at least once per year. g. Inspection and maintenance records shall be maintained for a period of at least three years. h. Overflows and bypasses shall be reported to the appropriate Division regional office in accordance with 15A NCAC 2B .0506(a), and public notice shall be provided as required by North Carolina General Statute § 143-215.1 C. 4. This permit shall not be transferable. In the event there is a desire for the wastewater collection facilities to change ownership, or there is a name change of the Permtttee, a formal permit request shall be submitted to the Division accompanied by documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request shall be considered on its merits and may or may not be approved. 1 5. Construction of the gravity sewers, pump stations, and force mains shall be scheduled so as not to interrupt service by the existing utilities nor result in an overflow or bypass discharge of wastewater to the surface waters of the State. 6. Upon completion of construction and prior to operation of these permitted facilities, a certification, a copy of the construction record drawings, as well as supporting design calculations for any pump stations permitted as part of this project shall be received from a North Carolina -licensed Professional Engineer certifying that the facilities have been installed in accordance with this permit; 15A NCAC 2H .0200; the Division's Gravity Sewer Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Station and Force Main adopted June 1, 2000 as applicable; and other supporting materials. If this project is to be completed in phases and partially certified, you shall retain the responsibility to track further construction approved under the same permit, and shall provide a final certificate of completion once the entire project has been completed. A copy of the construction record drawings, indicating the facilities constructed in the phase being certified, shall be submitted with each partial certification. Mail the Engineer's Certification, one copy of the "Construction Record Drawings", and one copy of the supporting design calculations to the Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 2769.9-1617. 7. A copy of the construction record drawings shall be maintained on file by the Permittee for the life of the wastewater collection facilities. 8. FaiIure to abide by the conditions and limitations contained in this permit; 15A NCAC 2H .0200; the Division's Gravity Sewer Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Station and Force Mains adopted June 1, 2000 as applicable; and other supporting materials may subject the Permittee to an enforcement action by the Division, in accordance with North Carolina General Statutes § 143-215.6A through §.143-215.6C. 9. In the event that the wastewater collection facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement facilities. 10. The issuance of this permit shall not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances that may be imposed by other government agencies (local, state and federal) which have jurisdiction, including but not limited to applicable river buffer rules in 15A NCAC 2B .0200, erosion and sedimentation control requirements in. 15A NCAC Ch. 4 and under the Division's General Permit NCG0100000, and any requirements pertaining to wetlands under 15A NCAC 2B .0200 and 15A NCAC 2H .0500. 11. Noncompliance Notification: The Permittee shall report by telephone to the Mooresville Regional Office, telephone number (704) 663-1699, as soon as possible, but in no case more than 24 hours or on the next working day, following the occurrence or first knowledge of the occurrence of either of the following: a. Any process unit failure, due to known or unknown reasons, that renders the facility incapable of adequate wastewater transport, such as mechanical or electrical failures of pumps, line blockage or breakage, etc.; or b. Any failure of a pumping station or sewer line resulting in a by-pass directly to receiving waters without treatment of all or any portion of the influent to such station or facility. Persons reporting such occurrences by telephone shall also file a written report in Ietter form within five days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. 2 VPermit issued this the twenty-fourth day of January 2002 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Euot Gregory J. Thorpe, Ph.D., Acft ngD)rector Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0020830 Permit No. WQ0020830 January 24, 2002 ENGINEER'S CERTIFICATION Partial Final I, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project, for the Project Name Location and County Permittee hereby state that, to the best'of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance of this permit; 15A NCAC 2H .0200; the Division of Water Quality's (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting materials. North Carolina Professional Engineer's seal, signature, and date: The above Engineer's Certification' shall be completed and submitted to the address below with one copy of the "Construction Record Drawings" of the wastewater collection system extension as well as supporting design calculations for any pump stations permitted as part of this project. This project shall not be considered complete nor allowed to operate until this Engineer's Certification and all required supporting documentation have been received by the Division. Any wastewater flow made tributary to the wastewater collection system extension prior to completion of this Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate enforcement actions. NORTH CAROLINA DIVISION OF WATER QUALITY WATER QUALITY SECTION NON -DISCHARGE PERMITTING UNIT 1617 MAIL SERVICE CENTER RALEIGH, NORTH CAROLINA 27699-1617 4 Town,of Faith Subject: Town of Faith From: "Marie Doklovic" <marie.doklovic@ncmail.net> Date: Fri, 4 Mar 2005 17:11:24 -0500 To: "Sonja Basinger" <Sonja.Basinger@ncmail.net> CC: "Tate Lanning" <TLanning@withersravenel.com> Sonja, You can just cut and paste the language from the three summaries beginning with, "A variance..." No need to include the background justification stuff in the permit. I would highlight the requirement to fix the well situation in the permit in bold. I'm going to log Tate's certification in as partiatuntil the well thing is corrected by whatever method the Town decides to meet the requirement and we receive word of it. I'll note these details in BIMS. This will allow the Town to move forward with allowing most of the residents/businesses to connect with exception of the 9 residents upstream of the well site until correction. Thanks, Marie W Q0020830v050304.doc Content -Type: application/msword Content -Encoding: base64 1 of 1 3/8/2005 8:35 AM Town of Faith Variance Requests Subject: Town of Faith Variance Requests From: "Marie Doklovic" <marie.doklovic@ncmail.net> Date: Fri, 4 Mar 2005 17:38:49 -0500 To: "Dennis Lassiter" <dlassiter@NCRURALCENTER.ORG>, <jbehm@salisburync.gov> CC: "Sonja Basinger" <Sonja.Basinger@ncmail.net> Gentlemen: As you were copied on this request, The Town of Faith, on behalf of their engineer, Tate Lanning, PE, has requested a few variances on their new collection system. Our responses to these variances are contained in the attached file memo. Of particular interest may be that we denied a request to leave approximately 65' of SDR 35 sewer pipe within 100 feet of a public water supply well, at the recommendation of pubic water supply staff. Mr. Lanning has been notified of that decision and has contacted the Town with regard to a solution. The Town, once the permit modification is issued with the other variance approvals, line size changes, allocated flow and pump capacity changes, can operate the system with exception of the 9 residences upstream of the well site until that has been corrected and the Division is notified. Our regional office will be issuing this modification very shortly. I'm not sure what your involvement is as of this point, but I thought you may want to know they have one more correction to make. If you have any questions, please do not hesitate to contact me. Also, if anyone has Allan Hart's E-mail and feels he needs to know this information, I'd appreciate it being passed on. Sincerely, Marie Doklovic K. Marie Doklovic, PE Environmental Engineer Division of Water Quality Pretreatment, Emergency Response & Collection Systems Unit 919-733-5083 x 371 919-733-0059 FAX WQ0020830v050304.doc Content -Type: application/msword Content -Encoding: base64 1 of 1 3/8/2005 8:36 AM Michael F. Easley, Govemor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E., Director Division ofWater Quality TO: FROM: SUBJECT: March 4, 2005 MEMORANDUM Permit File WQ0020830 Modification K. Marie Doklovic, PE Variance to Gravity MDC The Town of Faith was a previously unsewered community and recently had a new collection system installed. Upon compiling the final documents for certification and operation, the Town engineer discovered items not meeting our Gravity Sewer Minimum Design Criteria. While these are outlined in the supporting documentation in more detail, they are summarized as follows: 1) SDR 35 PVC pipe was installed 94 feet from a public water supply well; 2) a public 4-inch main was installed to serve one single house across non -owned property; and 3) small portions of 10-inch and 8-inch sewer were installed below minimum grade. SUMMARY — 1) After contacting the regional engineer for public water supply (Mooresville Region) and discussing the well situation, they do not agree with a variance. Current water supply regulations allow for deviation from the 100-foot separation distance and from using ferrous pipe material (DWQ regs) if water main materials and joints meeting water main standards are utilized. The pipe installed is SDR 35 PVC and was not tested to water main standards. A low pressure air test was used per ASTM standards and it is unclear if there was any minor leakage noted. A variance to allow a PVC SDR 35 pipe within 100 feet of a public water supply well is denied. The Town shall either replace the line in accordance with the regulations, reroute the line outside of 100-feet or abandon the well (with public water supply concurrence). Certification that the situation has been corrected shall be submitted to the Mooresville Regional Office, Surface Water Protection Section prior to allowing any connections upstream of the line of concern (Lateral B-2 on the record drawings). 2) A public easement has been obtained and the 4-inch line can only serve one home. A variance is granted to allow the 4-inch main along a permanent easement serving one residence to remain as installed. No other connections shall be made to this line without prior approval of the Division. The Town is responsible for this 4-inch line segment. 3) A segment of 10-inch pipe (318 feet) was installed at .26% when the minimum requirement is .28%. A segment of of 8-inch pipe (134 feet) was installed at .37%. This deviation falls within our 10% tolerance policy, will achieve a velocity of 2 fps at half full and surrounding segments are well above the minimum. This flatter slope should not have much effect on the system operation. A variance is granted to allow the line between MH 6 - 7(10') and E7 - E8 (8') to remain as installed. Non -Discharge Permitting Unit 1617 Mail Service Center, Raleigh, NC 27699-1617 DENR Customer Service Center An Equal Opportunity Action Employer Internet http://h2o.enr.state.nc.us/ndpu Telephone (919) 733-5083 Fax (919) 715-6048 Telephone 1 B00 623-7748 50% recycled/10% post -consumer paper z 'This :11:=1uSG'ii;CRTi 8ii LNCri appi, CIS required by the TOWN OF FAITH L�.� , r, �. 11-nani Budget aad SEWER FUND PO BOX37 Fiscal Contrci) et. FAITH, NC 28041 C • �.;1( (ngn,tu.e of Finance Officer)." POW( 4-1udvrod acd °) Io0 r L • i7- erar- ,Anen -- �nVWonmen-)and 11CtLnvc I iZeSou'Le-5 PAY TO THE ORDER OF DATE )O5 66-364/531 9RANCH 02 DOLLARS $ ; boa a o _ _ — Wl 171/11)4 I"n000 L L44v •:0 53 LO 3640C: 0 2o"' 280» o" TOWN OF FAITH — WASTEWATER COLLECTION SYSTEMS DENR-DWQ Permit No. WQ0020830 DESCRIPTION OF REQUESTED MODIFICATIONS The Project originally permitted under Permit No. WQ0020830 covered the construction of a complete wastewater collection system to serve the Town of Faith in Rowan County. Construction of the project commenced in December 2002 and was fully completed in January 2005. The Town wishes to request modifications to the permit as originally issued. The modifications requested are listed and described as follows: 1. Volume of Wastewater Flow: A wastewater volume of 156,400 gals/day was permitted in the original application. A total of 25 additional residential connections were installed during the construction process — mainly to serve out-of-town residents whose property is adjacent to the new sewer lines, and who had not signed up for sewer service prior to the issuance of the permit. The volume attributable to the additional connections is estimated as follows: 3 BR Units 20 Ea @ 120 gals/BR/Unit 2 BR Units 5 Ea @ 120 gals/BR/Unit TOTAL INCREASE — WASTEWATER VOLUME 7,200 gpd 1,200 gpd 8,400 gpd The adjusted total wastewater volume to be permitted is 156,400 + 8,400 = 164,800 gpd. Wastewater will be discharged into the City of Salisbury Collection System for eventual treatment at the Salisbury -Rowan WWTF (NC0023884). 2. Pumping Stations — Pumping Rates The Project included the construction of four (4) pumping stations with permitted capacities as follows: Pumping Station No. 1 (Non -clog) — Deal Street 100 gpm Pumping Station No. 2 (Grinder) — Fraley Street 45 gpm Pumping Station No. 4 (Non -clog) — Brown Street 100 gpm Pumping Station No. 4 (Grinder) — Legion Club Rd 55 gpm Modification — Station No. 2 - The grinder pumping station No. 2, as originally designed, included the use of 2-inch PVC pipe, check valves and ball valves in the wet well without external valve vaults. The Town of Faith arranged with the City of Salisbury to handle the operation and maintenance of the pumping stations and the City requested that Pumping Station No. 2 re -designed to utilize ductile iron pipe in lieu of PVC pipe in the wet wells and to provide a separate valve vault to house the check valves and ball valves. The use of ductile iron pipe in the wet well required that the size of the pump station piping be increased from 2-inch to 3-inch, since 3-inch is the smallest size available for ductile iron pipe. Station No. 2 had a short force main (<600 LF) and it was decided to increase the entire force main to 3-inch. This necessitated an increase in the pumping rate to achieve the desired velocity in the larger force main. The pumping rate was increased from 45 Description of Proposed Modifications — Permit WQ0020830 Town of Faith, NC gpm to 87 gpm. This was accomplished utilizing the same 3.0 HP Myers pump as originally specified. Modification — Pumping Station No. 4 - Station No. 4 was also a grinder station. However, clue to the higher head and capacity requirement, it was designed with 3-inch ductile iron piping in the wet well. The 3-inch valves were located in a separate vault. Due to the higher operating head requirement, the City of Salisbury requested that the Town of Faith use ductile iron force main pipe in lieu of the PVC force main originally proposed. Since the ductile iron pipe has a slightly larger inside diameter than the PVC pipe, the pumping rate was increased from 55 gpm to 64 gpm to achieve the desired velocity. This was accomplished utilizing the same 5.0 HP Myers pump as originally proposed. In summary, the Town of Faith requests that the permit be modified to increase the pumping rates at Pumping Station No. 2 and No. 4 as follows: Pumping Station No. 2 increase to 87 gpm (was 45 gpm) Pumping Station No. 4 increase to 64 gpm (was 55 gpm) No modification is requested for the non -clog Pumping Stations No. 1 and No. 3. 3. Force Main Sizes The final lengths of force mains 3-inch and smaller differ from the lengths shown in the permit. The revised lengths are as follows: 3-inch diameter force main 2,255 LF (was 1,700 LF) 2-inch diameter force main 0 LF (was 555 LF) 1-1/2 inch diameter force main 95 LF (was 0 LF) As previously noted in section 2 above, the force main at Pumping Station No. 2 was increased from 2-inch to 3-inch at the request of the City of Salisbury and the 2-inch force main was eliminated. The 1'/z inch force main represents the length of force main extended beyond the frontage of a residential lot that could not be served by gravity and was served instead by a small grinder pump station located on the lot. The force main is located in public right-of-way and will be maintained by the Town of Faith. Withers & Ravenel, Inc. By: g, Jr., . February 21, 2005 a sal 01 %lilt iv FL, /04 .�OUR , Page 2 of 2 TOWN OF FAITH — WASTEWATER COLLECTION SYSTEMS DENR-DWQ Permit No. WQ0020830 BACKUP FOR REQUESTED VARIANCES Several variances are indicated on the Application for Permit Modification. The details for the requested variances are presented below. 1. Separation from a Public Water Supply Well — Sewer Lateral B-2 is Non -compliant The Gravity Sewer Minimum Design Criteria stipulate in Section VI, Item B, Paragraph 2 that a minimum separation of 100 feet shall be maintained between sewer lines and water supply wells. If the minimum separation cannot be maintained, the sewer line is required to be constructed of "ferrous sewer pipe with joints equivalent to public water supply design standards. .. " The public water supply well on Gardner Street in Faith was not located by survey during the design phase of the project, and the proximity of this well to the sewer line on Gardner Street (Lateral B-2) was not observed or noted until the final inspection for the wastewater collection system. Following the final inspection, the Engineer surveyed the Location of the well and noted the location on the as -built drawing for Lateral B-2. The survey indicates that the center of the well is 94 feet from the center of the PVC sewer pipe (SDR-35) between Manholes B49 and B19. Approximately 65 feet of the PVC' sewer pipe is within the 100-foot restrictive radius.of the Construction Drawings (Record Drawings). There is approximately 1,000 feet of new sewer in Lateral B-2 upstream of the point of concern. Following its construction, Sewer Lateral B-2 was observed to have no measurable infiltration entering the system from above manhole B19. The sections of pipe upstream of Manhole B49 were subjected to low-pressure air tests on September 11, 2003 in accordance with applicable ASTM Standards. The sewer line met or exceeded the test requirements for minimum pressure and duration. The Gardner Street well has served the Town of Faith for approximately 37 years and currently supplies approximately 8 to 10 percent of the Town's current water demand. Although it is the lowest producing well on the Faith Water System in terms of capacity, the Town would like to keep it in service. To correct the problem would require either replacing the affected sewer line with ductile iron pipe or abandoning the well. To replace the affected sewer line with ductile iron pipe would be expensive and undesirable .in view of the. fact that the street was recently resurfaced following construction of the sewer system. Abandoning the well is expected to be significantly less expensive, but would have some negative impact on the Town's water supply. 2. Minimum Gradients for Gravity Sewer Pipe- Non -compliant at Two Locations Section 1I1, item D, Paragraph 1 (d) of the Gravity Sewer Minimum Design Criteria, establishes the minimum slopes for 10-inch and 8-inch gravity sewer pipe as noted below. Backup for Requested Variances — Permit WQ0020830 Town of Faith, NC Gravity Sewer Pipe — Nominal Diameter Minimum Slope — feet/100 feet 10-Inch 0.28 8-inch 0.40 The final "As -Built" survey of the constructed sewers reveals that the required minimum slopes were not met at two locations. These locations noted below with the "as -built" slope calculations. Location No. 1 — Outfall -- 10-inch Sewer Between Manhole No. 6 and Manhole No. 7: Elevation of invert out at Manhole No. 7 (as surveyed) 715.47 Elevation of invert in at Manhole No. 6 (as surveyed) 714.64 Total fall between manholes 0.83 feet Distance between manholes (as surveyed) 318.60 feet Slope between manholes = 0.83/318.60/100 = 0.26 feet/100 feet This does not meet the minimum sloe requirement of 0.28 feet/100. Car Location No. 2 — Lateral E-2 — 8-Inch Sewer Between Manhole No. E7 and E8: Elevation of invert out at Manhole No. E-8 (as surveyed) 884.40 Elevation of invert in at Manhole No. E-7 (as surveyed) 883.90 Total fall between manholes 0.50 feet Distance between manholes (as surveyed) 134.39 feet Slope between manholes = 0.50/134.39/100 = 0.37 feet/100 feet This does not meet the minimum slope requirement of 0.40 feet/100. i r`a' 3. Minimum Size Requirement for Public Sewers — Non -compliant at One Location Under DENR 0200 Regulations - 15A NCAC 02H .0219 (i) (2) F — the minimum size of public gravity sewers is required to be 8-inch diameter. A 4-inch sewer was constructed to serve a single residential lot. The property being served by the 4-inch sewer is located out of Town and the owner of the lot had not requested the service until after the sewer lines in the affected area had been installed. The 4-inch line in question is shown on Sheet No. 16 of the Construction Record Drawings. The line was installed in an easement across the neighbor's property to the rear of the property being Page 2 of 3 Backup for Requested Variances — Permit WQ0020830 Town of Faith, NC served. All surrounding properties are being served from other service connections and the 4-inch line in question cannot be used to serve other property. The Town will maintain the 4-inch line in question from the point of connection to the 8-inch collector main in the adjacent street to the property being served. Therefore, it is considered a public sewer, but does not meet the 8-inch minimum size requirement for public sewers. See=:t}e attached ,'sheet. E of thePConstruction$Record prarry rigs On behalf of the Town of Faith, the Engineer requests that the Division of Water Quality approve the variances described above. Withers & Ravenel, Inc. By: J. Ta - an ng, Jr., P.P. February 21, 2005 • � ▪ Q..SEAL r. c.- \ ass$ /iiiirisl000 Page 3 of 3 WITHERS & RAVENEL ENGINEERS I PLANNERS 1 SURVEYORS February 23, 2005 Ms. Sonja Bassinger N. C. DENR — Division of Water Quality Mooresville Regional Office 919 N. Main Street Mooresville, NC 28115 Re: Permit WQ00200830 Town of Faith - Wastewater Collection Facilities Rowan County Dear Ms. Bassinger: Construction of the Wastewater Collection Facilities to serve the Town of Faith has now been completed. In the process of preparing the record drawings we noted several items that will require modification to the original permit. On behalf of the Town of Faith I am enclosing the Town's application for a permit modification. The application also lists three items that do not comply with the Gravity Sewer Minimum Design Criteria and/or with the applicable regulations of 15A NCAC 2H .0200. Variances are requested for these items. The enclosed permit application package consists of the items listed below with comments: 1. Fast Track Application for Gravity Sewers, Pump Stations and Force Mains — This application contains the Applicant's Certification signed by W. Gary Gardner, Mayor of Faith. The Professional Engineer's Certification bears my seal and signature. (1 original and 1 copy) 2. Application Fee — Town of Faith Check in the amount of $400.00 3. Copy of Original Permit WQ208030 dated January 24, 2002 — With Cover Letter 4. Letter of Flow Acceptance from Salisbury -Rowan Utilities dated February 17, 2005 — This letter accepts the modified flow volume of 164,800 gpd. The volume of wastewater accepted in the original permit was 156,400 gpd. This letter was addressed to Ms. Marie Doklovic in the Non -Discharge Permitting Unit of the State Office of DENR-DWQ. (1 original and 1 copy) 5. Color Copy of Portion of 7.5 Minute USGS Quad Map — "Rockwell" — This map shows the area served by the Town of Faith Wastewater Collection Facilities, the location of the four (4) pumping stations and the point of connection to the City of Salisbury Collection System on Crane Creek. (1 copy) 6. Backup Sheet Describing the Requested Modifications -- (1 original and 1 copy) 7. Backup Sheet with Data & Calculations for Requested Variances - (1 original and 1 copy) 8. Copies of Construction Record Drawings Pertinent to Requested Variances — Sheets 2, 16, 27 and 49. -- (2 copies each) MacKenan Drive 1 Cary, North Carolina 27511 1 tel: 919.469.3340 I fax: 919.467.6008 1 www.withersravenel.com 107 5tokley Drive 1 Suite io4 1 Wilmington, North Carolina 28403 1 tel: 910.256.9277 I fax: 910.256.2584 Ms. Sonja Bassinger February 23, 2005 Page 2 of 2 For your Mformation, the engineering firm shown on the original application was Tate Lanning & Associates, P.C. My firm merged with Withers & Ravenel, Inc. on November 1, 2002. Therefore, VVithers & Ravenel, Inc. is now the engineer of record or the project and 1 have continued to serve as the Project Engineer for the Town. The Town of Faith would appreciate your review of the application materials. If additional information is needed to complete your review, please contact me at the phone number listed on the application or by e-mail to tianning@vvithersravenel.corn. Sincerely, WITHERS & RAVENEL, IND. Enclosures as listed Cc: Town of Faith (w/enclosures 1 & 3-8) Ms. Marie Doklovic, P.E. DENR-DVVQ Non -Discharge Permitting Unit (vv./enclosures 1 & 3-8) Mr. H. Allen Hart — USDA Rural Development Specialist — Greensboro (w/enclosures 1 & 3-8) Mr, Dennis H. Lassiter, P.E. — Grants Engineer - NC Rural Economic Development Center, Inc. (w/enclosures 1 & 3-8) Mr. Jim Behmer, P.E. — Utilities Engineer — Salisbury -Rowan Utilities (w/enclosures 1 & 3,-8)