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HomeMy WebLinkAboutWQ0006699_Final Permit_19931129State 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 November 29, 1993 Mr. Ronald N. Walton Environmental Section Leader Cape Industries Post Office Box 327 Wilmington, North Carolina 28402-0327 Subject: Permit No. WQ0006699 Cape Industries Wastewater Spray Irrigation Wastewater Residuals (sludge) Landfill New Hanover County Dear Mr. Walton: On March 26, 1993, the Division of Environmental Management issued Permit No. WQ0006699 to Cape Industries for the continued operation of the subject wastewater spray irrigation facilities and wastewater residuals landfill. On May 3, 1993, the Attorney Generals Office received your letter, dated April 29, 1993, which specified various conditions and requirements of Permit No. WQ0006699, to which Cape Industries objected. The Division reviewed those objections and they are discussed below: Objection A: Regarding the requirement for stabilization of domestic wastewater residuals specified in condition 1.1, Cape Industries states that 40 CFR 503.6 exempts industrial wastewater residuals from stabilization requirements. Response A: The Division agrees that 40 CFR 503 does not apply to residuals that result from industrial wastewaters, including residuals that are generated during the treatment of industrial wastewater combined with domestic sewage; however, 15A NCAC 2H .0205 (d) (1) (H) requires that a detailed explanation be provided which specifies how the residuals will be stabilized. In addition, this regulation states that if the residuals are generated from a system treating sewage, the explanation must show that the stabilization process meets EPA's criteria for a Class B residual, as defined in 40 CFR 503 or the Process to Significantly Reduce Pathogens (PSRP), as defined in 40 CFR Part 257, Appendix H. Since the residuals covered. by -this permit are, in part, generated from domestic wastewaters, Cape Industries may utilize 503 or 257, as described above, to demonstrate compliance. Objection B: Cape Industries states that the recent sale of some of its property to Fortron Industries could tighten some of the boundaries specified in the permit. Response B: The compliance and review boundaries have been modified accordingly and a revised map is attached. ' P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-9919 Are Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Mr. Ronald N. Walton November 29, 1993 Page 2 Objection C: Regarding condition I.7.c and 1.7.f, Cape Industries wishes to clarify that the specified buffers apply only to potable water wells. Response C: Conditions I.7.c and 1.7.f have been modified to clarify that these buffers refer to potable water wells. Objection D: Regarding condition 11.4, Cape Industries states that its irrigation field is located on a sand hill with no impervious areas nearby and requests that condition 11.4 be modified to delete the prohibition of irrigation during inclement weather. Response D: Condition HA has been modified by deleting the reference to inclement weather; however, the condition still prohibits irrigation when the ground is in a condition that will cause runoff. Objection E: Regarding condition 111.5, Cape Industries states that stabilization requirements do not apply, as previously discussed in Objection A. Response E: We have explained in Response A how the stabilization requirements apply to Cape Industries. Condition II1.5 has been modified, however, by including the option to comply with 40 CFR 503 and by adding the phrase "if applicable" when referring to the data to verify stabilization. Objection F: Regarding condition III.6, Cape Industries has requested that the Cation Exchange Capacity (CEC) range be specified as 5-15 rather than 0-5 for calculations pertaining to the existing spray field. Cape Industries states that tests conducted in the spray field area indicate CEC values from 13 to 112. Response F: Existing condition III.6 has been deleted from the permit. While the Division has concerns about the specified CEC range that Cape Industries states it found, the Wilmington Regional Office will continue to work with Cape Industries to resolve this issue. Objection G. Condition IV-1 requires an assessment of all residuals storage and disposal facilities regarding their compliance with 15A NCAC 2L groundwater standards. Cape Industries is currently under a Special Order by Consent with the N. C. Superfund Section to perform a site -wide groundwater evaluation and requests that it be allowed to use this assessment rather than performing two separate studies. Response G: The Division agrees and has deleted condition IV.L Objection H: Regarding condition IV.2, Cape Industries requests that requirements to monitor monitoring well LE-2 be deleted since this well will not provide representative results. Cape Industries has also requested that the requirement to perform additional sampling and analysis if TOC concentrations greater than 10 mg/l are detected in downgradient monitoring wells be modified to require this additional sampling and analysis only on the first sampling period. Response H: Monitoring well LE-2 has been deleted from condition IV.2. Additionally, the frequency for monitoring TOC has been changed to annually rather than three times per year and a statement has been added to require the additional sampling and analysis, if necessitated, only the first time the situation arises. The requirement for the additional sampling and analysis for future TOC sampling events will be made on a case by case basis. This permit also contains conditions concerning the alum sludge dewatering basins, the spray field loading rates and CEC values, and the future disposal of any domestic sludges. Mr. Ronald N. Walton November 29, 1993 Page 3 In accordance with your previous acceptance of the draft permit transmitted to you by letter dated August 27, 1993, this permit modification shall be final and effective from the date of issuance until February 28, 1998, shall void Permit No. WQ0006699, which was issued on March 26, 1993, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements in this permit. Failure to establish an adequate system for collecting and maintaining the required operational information will result in future compliance problems. If you need additional information concerning this matter, please contact Ms. Carolyn McCaskill at 919/ 733-5083, extension 540. cc: New Hanover County Health Department Wilmington Regional Office, Water Quality Wilmington Regional Office, Groundwater Groundwater Section, Jack Floyd Training and Certification Unit (no revised rating) Facilities Assessment Unit NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES I "XI 4:4["all SPRAY IRRIGATION SYSTEM PERMIT 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 Cape Industries New Hanover County FOR THE continued operation of an existing 0.407 MGD spray irrigation facility consisting of a 60 acre spray site with 28 spray irrigation guns located 300 feet apart, a 0.30 million gallon holding tank, dual 500 GPM irrigation pumps, and all related piping, valves, controls and appurtenances to irrigate treated effluent from Cape Industries biological wastewater wastewater treatment facility; and the continued operation of process wastewater and iron removal plant sludge disposal existing facilities consisting of earthen lagoons in which polymer added sludge is concentrated, and the ultimate disposal of concentrated dry sludge to a Cape Industries landfill disposal site to serve Cape Industries' Highway 421 North facilities with no discharge of wastes to the surface waters, pursuant to the application received June 30, 1992, and in conformity with the project plan, specifications, and other supporting data subsequently filed and approved by the Department of Environment, Health and Natural Resources and considered a part of this permit. This permit shall be effective from the date of issuance until February 28, 1998, shall void Permit No. WQ0006699, which was issued on March 26, 1993, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE A DARD 1. Within one year of issuance of this permit Cape Industries shall make applications to the Division for permits which will separate the sludge disposal system.from this spray irrigation permit. As part of this permit renewal Cape Industries submitted documentation agreeing to evaluate other sludge disposal options to replace the current sludge landfill system being used. If any domestic sludge is included in the subject sludge disposal option(s) chosen by Cape Industries, the sludge shall be stabilized by using a method authorized by State and Federal regulations. 2. The existing alum sludge dewatering basins are unlined and may be discharging to the groundwater in violation of the Division's 15A NCAC 2L groundwater standards. Cape Industries shall consider the lining of these basins to prevent any unpermitted discharge into the groundwaters by these basins, in reference to condition IV.1 of this permit. Within one (1) year of permit issuance abandonment or corrective action must be taken to prevent any future violations. The Aum sludge dewatering basins shall not be left unlined, without the proper permit for discharge into the groundwaters of the State. 3. The spray irrigation facilities shall be effectively maintained and operated at all times so that there is no discharge to the surface waters, nor any contamination of ground waters which will render them unsatisfactory for normal use. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions or failure of the irrigation area to adequately absorb the wastewater, the Permittee shall take such immediate corrective action to correct the problem, including actions as may be required by the Division of Environmental Management. 4. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to surface or groundwaters resulting from the operation of this facility. 5. The sludge generated from these treatment facilities must be disposed of in accordance with General Statute 143-215.1 and in a manner approved by the North Carolina Division of Environmental Management. 6. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 7. The following buffers shall be maintained: a) 400 feet between wetted area and any residence or places of public assembly under separate ownership, b) 150 feet between wetted area and property lines, c) 100 feet between wetted area and potable water wells, d) 100 feet between wetted area and drainageways or surface water bodies, e) 50 feet between wetted area and public right of ways, f) 100 feet between wastewater treatment units and potable water wells, g) 50 feet between wastewater treatment units and property lines. Some of the buffers specified above may not have been included in previous permits for this waste treatment and disposal system. These buffers are not intended to prohibit or prevent modifications, which are required by the Division, to improve performance of the existing treatment facility. These buffers do, however, apply to modifications of the treatment and disposal facilities which are for the purpose of increasing the flow that is tributary to the facility. These buffers do apply to any expansion or modification of the spray irrigation areas and apply in instances in which the sale of property would cause any of the buffers now complied with, for the treatment and disposal facilities, to be violated. The applicant is advised that any modifications to the existing facilities will require a permit modification. 8. The land application program shall be effectively maintained and operated as a non - discharge system to prevent the discharge of any wastes resulting from the operation of this program. 9. No crops for direct human consumption shall be raised on the sludge landfill sites for a period of 18 months following sludge application. II. OPERATIQN AND MAINTENAISQE REQUIREMENIS 1. The facilities shall be properly maintained and operated at all times. 2 2. Upon classification of the facility by the Certification Commission, the Permittee shall employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment facilities. The operator must hold a certificate of the type and grade at Ieast equivalent to or greater than the classification assigned to the wastewater treatment facilities by the Certification Commission. The Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at least weekly and each Class II, III, and IV facility at least daily, excluding weekends and holidays, and must properly manage and document daily operation and maintenance of the facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202. 3. A suitable vegetative cover for the spray irrigation field shall be maintained. 4. Irrigation shall not be performed when the ground is in a condition that will cause runoff. 5. Adequate measures shall be taken to prevent wastewater runoff from the spray field. 6. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater resulting from the operation of this facility. 7. The spray irrigation application rate shall not exceed 0.25 inches/ acre/ day. 8. No type of wastewater other than that from Cape Industries shall be sprayed onto the irrigation area. 9. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 10. Public access to the land application sites shall be controlled during active site use. Such controls may include the posting of signs showing the activities being conducted at each site. 11. A minimum freeboard of two (2) feet shall be provided at all times in the existing earthen lagoons. III. MONITQRING AND -REPORTING REl LITREM,ENTS Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed necessary by the Division of Environmental Management to insure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. 2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater disposed. These records shall include, but are not necessarily limited to the following information: a) date of irrigation, b) volume of wastewater irrigated, c) field irrigated, d) length of time field is irrigated, e) continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each field, f) weather conditions, and g) maintenance of cover crops. 3 3. The effluent from the subject facilities shall be monitored by the Permittee at the point prior to irrigation every March, July, and November for the following parameters: TS S Fecal Coliforms pH NH3 as N Cobalt TOC Chloride 1, 4-Dioxane Manganese Calcium Sodium Adsorption Ratio by Calculation 4. Three copies of all operation and disposal records (as specified in condition 1112) and all effluent monitoring data (as specified in condition Ill 3) and any other data as may be required shall be submitted on or before the last day of the following month to the following address: NC Division of Environmental Management Water Quality Section Facility Assessment Unit PO Box 29535 Raleigh, NC 27626-0535 5. All sludges included in this permit must be monitored for compliance with condition 1.5 of this permit. Data to verify stabilization by a process to significantly reduce pathogens (as described in 40 CFR Part 257, Appendix II or 40 CFR 503), if applicable, must be maintained by the Permittee. The required data is specific to the stabilization process utilized, but should be sufficient to clearly demonstrate compliance with 40 CFR Part 257 or 40 CFR 503. 6. Noncompliance Notification: The Permittee shall report by telephone to the Wilmington Regional Office, telephone no. 919/ 395-3900 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 any of the following: a. Any occurrence at the wastewater treatment facility which results in the treatment of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge digester, the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. C. Any failure of a pumping station, sewer line, or treatment facility resulting in a by- pass directly to receiving waters without treatment of all or any portion of the influent to such station or facility. d. Any time that self -monitoring information indicates that the facility has gone out of compliance with its permit limitations. Persons reporting such occurrences by telephone shall also file a written report in letter form within 15 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. 4 IV. GROU NDWATER REQUIREMENTS 1. Monitor wells LE-1, LE-3, LE-4, LE-5, AND Z shall be sampled every March, July, and November, for the following parameters: NO3 TDS TOC* pH NO2 Chloride Water Level Managanese 1, 4-Dioxane Total Suspended Solids Iron Cobalt *TOC is required to be analyzed annually nly_ in November. The measurement of water level must be made prior to sampling for the remaining parameters. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide relative elevations of the measuring point for each of the monitoring wells. These elevations shall be provided to the Regional Hydrogeologist within 60 days after well construction. The depth of water in each well shall be measured from the surveyed point on the top of the casing. *If TOC concentrations greater than 10 mg/1 are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents comprising this TOC concentration. If the TOC concentration, as measured in the back r� monitor well, exceeds 10 mg/l, this concentration will be taken to represent the naturally occurring TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above; however, this additional sampling and analysis will be required only for the first sampling event. The necessity of requiring the additional sampling and analysis in subsequent applicable situations will be determined on an individual basis. The results of the sampling and analysis shall be sent to the N.C. Division of Environmental Management on Form GW-59 (Compliance Monitoring Report Form) every April, August, and December. 2. The Compliance, Boundary delineated on the attached site plan for the disposal system is specified by regulations in 15A NCAC 2L, Classifications and Water Quality Standards applicable to the groundwater of North Carolina. An exceedance of Groundwater Quality Standards beyond the Compliance Boundary is subject to penalty provisions applicable under General Statute 143-215.6A. The sale of property, by the Permittee, which is within or contiguous to the disposal system site may alter location of the Compliance Boundary. For facilities permitted prior to December 30, 1983, the Compliance Boundary is established at the lesser of 500 feet from the lagoon and spray field, or the property boundary, whichever is less. If the title to any property which may affect the location of the Compliance Boundary is changed, the permittee shall notify the Division Director within 14 days. The Director shall then establish a modified Compliance Boundary which will be done as a modification to the Permit. E The REVIEW BOUNDARY delineated on the attached site map for the disposal system is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. A REVIEW BOUNDARY is established around disposal systems midway between the Compliance Boundary and the perimeter of the waste disposal area. When the concentration of any substance equals or exceeds the maximum allowable concentration of that substance at the REVIEW BOUNDARY, as determined by monitoring, the permittee shall either (i) demonstrate, through predictive calculations or modeling, that natural site conditions, facility design and operational controls will prevent a violation of standards at the Compliance Boundary; or, (ii) submit a plan for the alteration of existing site conditions, facility design or operational controls that will prevent a violation of standards at the Compliance Boundary, and implement that plan upon its approval by the Director. 3. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. 1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to insure proper operation of the subject facilities. 2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities to prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to the release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall keep an inspection log or summary including at least the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of inspections shall be maintained by the Permittee for a period of three years from the date of the inspection and shall be made available upon request to the Division of Environmental Management or other permitting authority. 3. Any duly authorized officer, employee, or representative of the Division of Environmental Management may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the disposal site and facility at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records that must be kept under the terms and conditions of this permit; or may obtain samples of groundwater, surface water, or leachate. VI. QENERAL CONDITIONS 1. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans, specifications, and other supporting data. 2. This permit is effective only with respect to the nature and volume of wastes described in the application and other supporting data. 3. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Environmental Management accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. r, 4. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division of Environmental Management in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 5. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 6. A set of approved plans and specifications for the subject project must be retained by the Permittee for the life of the project. 7. The annual administering and compliance fee must be paid by the Permittee within thirty days after being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205 (c)(4). 8. The Permittee, at least six. (6) months prior to the expiration of this permit, shall request its extension. Upon receipt of the request, the Commission will review the adequacy of the facilities described therein, and if warranted, will extend the permit for such period of time and under such conditions and limitations as it may deem appropriate. Permit issued this the 29th day of November, 1993. CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION `JA. Preston Howard0r., l Division of Environ ental By Authority of the En Permit Number WQ0006699 agement Commission 7 APB I DE] o I -umm CRAM" WUJLs c B +-I 4DI • 4, R � =FLUENT SPN ?5 r- - e E •' I4kC.ATiON FIELD - - r� op'�2 d - - - - - _ _ - - II- - - - - - - - - - 5i •I 19 R{/-9 .�, `01 N 1 SLANT ` I rltr•� { Y+ I LIE-4 M•25 1 r� M;3 s 1 Ir Z2 Y =FFLUENT SPRAT 1 !RRIGATION FIELD I fl I( �E•5 05t•1 A 5.25 • • • i) I , 1�15.78 ' ' I I 0E-r S- r2 -ML ;Nr — 11- . PIZ.. „,f•2 r-•71 �}�'1� V= iA r.10 r-12 / p0 LEGEND / ^C-9' Lahtipii0.Y1LC 1. ufJpfe . T'"kew dov^3"ry ! N iECT ION WELL GROUP�- /++yE_P ONITOR WELL / # PRODUCTION WELL • MONITOR WELL / g, NEW " ITOR WELL (, MONITOR WELL NEST All, OIEZOMETER • ABANDONED WELL i :OIL BDRING - --- :�- IRRINE' -- FIGURE 7 . v s ' CAPE INDUSTRIES/WI'Lt�! `�NMENTAL sic PROPOSAL Ilao .,_ ...<�I� �1 LJ LTA NTS I�socooG MAR 4 1Q°3 CENTRAL FILES