The URL can be used to link to this page

Home My WebLink AboutNC0025984_Staff Report_20190805State of North Carolina Division of Water Resources Water Quality Regional Operations Section Staff Report FORM: WQROSSR 04-14 Page 1 of 6 To: NPDES Unit Non-Discharge Unit Application No.: NC0025984 Attn: Unknown Facility name: Forest City WWTP From: Mikal Willmer Asheville Regional Office Note: This form has been adapted from the non-discharge facility staff report to document the review of both non- discharge and NPDES permit applications and/or renewals. Please complete all sections as they are applicable. I. GENERAL AND SITE VISIT INFORMATION 1. Was a site visit conducted? Yes or No a. Date of site visit: 5/1/2019 b. Site visit conducted by: Mikal Willmer c. Inspection report attached? Yes or No (See Laserfiche for Inspection) d. Person contacted: Sonny Penson and their contact information: (828) 248 - 5217 ext. e. Driving directions: Take exit 85 off of I-40E for US.221 S. Stay on 221-S for approximately 24 miles then merge left onto US-74E to Forest City for 5 miles. Take exit 184 for Old Caroleen Rd, turn left . Stay on Old Caroleen for 1 mile, turn right onto Riverside Dr. The WWTP (397 Riverside Dr.) is on the Right. 2. Discharge Point(s): Latitude: 35.327181 Longitude: -81.839352 Latitude: Longitude: 3. Receiving stream or affected surface waters: Second Broad River Classification: WS-V River Basin and Subbasin No. Broad, 03050105 Describe receiving stream features and pertinent downstream uses: River is protected for class C uses and water supply. II. PROPOSED FACILITIES: NEW APPLICATIONS 1. Facility Classification: (Please attach completed rating sheet to be attached to issued permit) Proposed flow: Current permitted flow: 2. Are the new treatment facilities adequate for the type of waste and disposal system? Yes or No If no, explain: 3. Are site conditions (soils, depth to water table, etc) consistent with the submitted reports? Yes No N/A If no, please explain: 4. Do the plans and site map represent the actual site (property lines, wells, etc.)? Yes No N/A If no, please explain: DocuSign Envelope ID: 83906461-260B-4EE9-8FC0-A3CF1D30A2D6 FORM: WQROSSR 04-14 Page 2 of 6 5. Is the proposed residuals management plan adequate? Yes No N/A If no, please explain: 6. Are the proposed application rates (e.g., hydraulic, nutrient) acceptable? Yes No N/A If no, please explain: 7. Are there any setback conflicts for proposed treatment, storage and disposal sites? Yes or No If yes, attach a map showing conflict areas. 8. Is the proposed or existing groundwater monitoring program adequate? Yes No N/A If no, explain and recommend any changes to the groundwater monitoring program: 9. For residuals, will seasonal or other restrictions be required? Yes No N/A If yes, attach list of sites with restrictions (Certification B) Describe the residuals handling and utilization scheme: 10. Possible toxic impacts to surface waters: 11. Pretreatment Program (POTWs only): III. EXISTING FACILITIES: MODIFICATION AND RENEWAL APPLICATIONS 1. Are there appropriately certified Operators in Charge (ORCs) for the facility? Yes No N/A ORC: Sonny Penson Certificate #:22338 Backup ORC: Jeffery Dotson Certificate #:11688 2. Are the design, maintenance and operation of the treatment facilities adequate for the type of waste and disposal system? Yes or No If no, please explain: Description of existing facilities:  Influent Mechanical Step Bar Screen backed up by a Manual Bar Screen,  Aerated traveling bridge grit chamber,  Grease removal,  5 small first stage aeration basins (not currently active-may bring back online in the future),  Second Stage Aeration Basin (Only active basin-acting as extended aeration basin),  Two circular secondary clarifiers,  Baffled chlorine contact chamber,  Gas chlorination and sulfur dioxide dechlorination,  Step aeration,  Two aerobic digesters,  1 m Gravity belt thickener (may be switch to rotary drum thickener),  2m belt filter press  Sludge storage building. Proposed flow: No Change. Current permitted flow: 4.95 MGD DocuSign Envelope ID: 83906461-260B-4EE9-8FC0-A3CF1D30A2D6 FORM: WQROSSR 04-14 Page 3 of 6 Explain anything observed during the site visit that needs to be addressed by the permit, or that may be important for the permit writer to know (i.e., equipment condition, function, maintenance, a change in facility ownership, etc.) Facility equipment is aging, and some equipment needs to be brought off line in the future for repairs. Some piping needs to be replaced with larger diameter pipe to help alleviate constriction during heavy flows. This is not currently causing permit violations; however, it makes operation during heavy flow events more difficult. 3. Are the site conditions (e.g., soils, topography, depth to water table, etc) maintained appropriately and adequately assimilating the waste? Yes or No N/A If no, please explain: 4. Has the site changed in any way that may affect the permit (e.g., drainage added, new wells inside the compliance boundary, new development, etc.)? Yes or No If yes, please explain: 5. Is the residuals management plan adequate? Yes or No If no, please explain: 6. Are the existing application rates (e.g., hydraulic, nutrient) still acceptable? Yes or No N/A If no, please explain: 7. Is the existing groundwater monitoring program adequate? Yes No N/A If no, explain and recommend any changes to the groundwater monitoring program: 8. Are there any setback conflicts for existing treatment, storage and disposal sites? Yes or No If yes, attach a map showing conflict areas. 9. Is the description of the facilities as written in the existing permit correct? Yes or No If no, please explain: See description above and reference permit renewal application. 10. Were monitoring wells properly constructed and located? Yes No N/A If no, please explain: DocuSign Envelope ID: 83906461-260B-4EE9-8FC0-A3CF1D30A2D6 FORM: WQROSSR 04-14 Page 4 of 6 11. Are the monitoring well coordinates correct in BIMS? Yes No N/A If no, please complete the following (expand table if necessary): Monitoring Well Latitude Longitude ○ ′ ″ - ○ ′ ″ ○ ′ ″ - ○ ′ ″ ○ ′ ″ - ○ ′ ″ 12. Has a review of all self-monitoring data been conducted (e.g., DMR, NDMR, NDAR, GW)? Yes or No Please summarize any findings resulting from this review: No issues with limits violations since the last permit renewal. Monitoring violations in 2018 were resolved. Provide input to help the permit writer evaluate any requests for reduced monitoring, if applicable. 13. Are there any permit changes needed in order to address ongoing BIMS violations? Yes or No If yes, please explain: 14. Check all that apply: No compliance issues Current enforcement action(s) Currently under JOC Notice(s) of violation Currently under SOC Currently under moratorium Please explain and attach any documents that may help clarify answer/comments (i.e., NOV, NOD, etc.) If the facility has had compliance problems during the permit cycle, please explain the status. Has the RO been working with the Permittee? Is a solution underway or in place? Facility had a bypass during tropical storm Michael in 2018. Facility staff have put plans in place to alleviate the flow constriction issue at the split ter box and hope to modify the splitter box to allow for flow equalization to an unused basin during future high flows. Have all compliance dates/conditions in the existing permit been satisfied? Yes No N/A If no, please explain: 15. Are there any issues related to compliance/enforcement that should be resolved before issuing this permit? Yes No N/A If yes, please explain: 16. Possible toxic impacts to surface waters: Chlorine can impact surface waters if not properly removed. No issues reported with the dechlorination feed at the facility and no permit issues related to chlorine residual. 17. Pretreatment Program (POTWs only): Currently no pass-through issues or major interferences have been noted. Forest City is addressing and O&G issue with one of their industries to prevent issues with solids settling in the WWTP. DocuSign Envelope ID: 83906461-260B-4EE9-8FC0-A3CF1D30A2D6 FORM: WQROSSR 04-14 Page 5 of 6 IV. REGIONAL OFFICE RECOMMENDATIONS 1. Do you foresee any problems with issuance/renewal of this permit? Yes or No If yes, please explain: 2. List any items that you would like the NPDES Unit or Non-Discharge Unit Central Office to obtain through an additional information request: Item Reason 3. List specific permit conditions recommended to be removed from the permit when issued: Condition Reason A.6 If permittee wishes to keep this condition, it should be modified to read “Wastewater Treatment Plant”. Staff report there is no plans for expansion of the Water Treatment Plant as currently listed. 4. List specific special conditions or compliance schedules recommended to be included in the permit when issued: Condition Reason 5. Recommendation: Hold, pending receipt and review of additional information by regional office Hold, pending review of draft permit by regional office Issue upon receipt of needed additional information Issue Deny (Please state reasons: ) 6. Signature of report preparer: Signature of regional supervisor: Date: DocuSign Envelope ID: 83906461-260B-4EE9-8FC0-A3CF1D30A2D6 8/5/2019 FORM: WQROSSR 04-14 Page 6 of 6 V. ADDITIONAL REGIONAL STAFF REVIEW ITEMS See inspection report from May 2019 for facility recommendations. DocuSign Envelope ID: 83906461-260B-4EE9-8FC0-A3CF1D30A2D6