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HomeMy WebLinkAboutWQ0002127_CEI_20210331 SENT VIA ELECTRONIC MAIL ONLY: NO HARD COPY WILL BE MAILED March 31, 2021 Brad E Boris Email: bboris@ci.morganton.nc.us City of Morganton SUBJECT: Compliance Inspection Report City of Morganton DCAR Non-discharge Permit No. WQ0002127 Burke County Dear Permittee: The North Carolina Division of Water Resources conducted an inspection of the City of Morganton DCAR on 3/10/2021. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in Non-discharge Permit No. WQ0002127. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". There were no significant issues or findings noted during the inspection and therefore, a response to this inspection report is not required. If you should have any questions, please do not hesitate to contact me at 828-296-4686 or via email at mikal.willmer@ncdenr.gov. Sincerely, Mikal Willmer, Environmental Specialist II Water Quality Regional Operations Section Asheville Regional Office Division of Water Resources, NCDEQ ATTACHMENTS: Inspection Report Ec: LF Eli Self-ORC DocuSign Envelope ID: F06A7C8F-91C5-46ED-8A01-22ED030864C4 Compliance Inspection Report Permit:WQ0002127 Effective:03/01/18 Expiration:02/28/23 Owner :City of Morganton SOC: Contact Person: Region: County: Directions to Facility: Burke Asheville Brad E Boris Effective:Expiration:Facility:City of Morganton DCAR 1000 Vine Arden Rd Morganton NC 28655 Title:Phone:828-438-5285Director Water Resources I-40 to Exit 105 to Hwy. 18N. Turn rt. on Hwy. 70 By-Pass, turn left @ light to Hwy. 70 W. Turn right on Kirksey Dr. Go approx. 1.25 miles to Vine Arden Road on right. Secondary ORC(s): Phone:Certification:Primary ORC: System Classifications: On-Site Representative(s): Related Permits: NC0026573 City of Morganton - Catawba River Pollution Control Facility Secondary Inspector(s): Primary Inspector: Inspection Date:Exit Time:Entry Time: Phone: 03/11/2021 10:00AM 12:00PM Mikal Willmer 828-296-4686 Lauren E Armeni Facility Status: Permit Inspection Type: Reason for Inspection:Inspection Type: Not CompliantCompliant Routine Distribution of Residual Solids (503) Compliance Evaluation Question Areas: Miscellaneous Questions Record Keeping Treatment Sampling Pathogen and Vector Attraction Storage (See attachment summary) Page 1 of 4 DocuSign Envelope ID: F06A7C8F-91C5-46ED-8A01-22ED030864C4 Inspection Date: Permit: Inspection Type : Owner - Facility: Reason for Visit: WQ0002127 03/11/2021 Compliance Evaluation City of Morganton Routine Inspection Summary: Mikal Willmer and Lauren Armeni, with the Asheville Regional Office, conducted a compliance evaluation inspection of the Morganton Compost facility on March 10, 2021. This inspection was conducted to determine whether the facility is being operated and maintained in compliance with DCAR Permit No. WQ0002127. City of Morganton Staff were present and assisted in the inspection. Overall, the facility appeared to be in compliance. A summary of observations, recommendations and comments noted at the time of the inspection are below. Initial Solids Processing: Recommend improved aeration for all sludge holding tanks to reduce odors and further aid the breakdown of solids which would help improve storage capacity for processing. Staff were catching up on solids processing because both centrifuges downstream of the holding tanks became inoperable at the same time. Solids are transported from the centrifuges to the mixing shed. The City has not purchased a mixing box; however, they are using two separate front-end loaders to reduce potential contamination. One loader is specifically designated for mixing and the other for end-product. A mixing box, while not required, may aid compost staff in obtaining a consistent mixture when constructing piles. The City maintains approximately a 3 to 1 wood chips to sludge mixing ratio and aim for approximately 55% TS before transferring to bays for aeration. Staff report %TS is not analyzed every time and is based on staff’s knowledge. The City attempts to minimize any potential contamination and maintain quality control by using only one wood chips supplier. Piles are aerated for 21 days with the blowers set to cycle on and off at predetermined intervals. The corrugated pipes used for aeration under the piles are replaced once a year. Pipes are covered with a layer of woodchips when replaced. Return chips from screening are used as an insulating cover over the piles. Four spots of each pile are monitored for temperature daily. Compost staff take measurements during the week and WWTP operators are responsible for measurements during the weekends. Mr. Self, ORC, indicated all staff are trained on the proper temperature monitoring protocol (appropriate depths and locations). Two thermometers are available for staff to use. Power Screen: The power screen is approximately 16 years old and in need of replacement. Staff reported they have been able to get replacement parts for the items needed so far; however, they indicated any major component failure may render it inoperable and require complete replacement. It is recommended a power screen be incorporated into the budget to ensure continuity of compost operations for the foreseeable future. Sampling: Cross-sectional samples are taken of the screened product over a two week period to obtain a representative sample. Samples are delivered to Statesville Analytical for analysis. Staff autoclave the stainless-steel sample scoop used to collect composite samples of the final pile. Please verify the bags purchased for fecal coliform sampling are listed as sterile by the manufacturer. If these bags are not listed by the manufacturer as “sterile”, then the bags needs to be sterilized in the laboratory before use. Please reference Standard Methods Section 9030 B Equipment Specifications. Operation and Maintenance: Additional covered storage area is recommended to reduce the reintroduction of moisture to the piles. Staff clean the compost stormwater pump station approximately once a year during the summer to remove debris. Additionally, please review the facilities operation and maintenance plan to verify all listed protocols are current practice and update as needed. Page 2 of 4 DocuSign Envelope ID: F06A7C8F-91C5-46ED-8A01-22ED030864C4 Inspection Date: Permit: Inspection Type : Owner - Facility: Reason for Visit: WQ0002127 03/11/2021 Compliance Evaluation City of Morganton Routine Type Yes No NA NE Land Application Distribution and Marketing Record Keeping Yes No NA NE Is GW monitoring being conducted, if required? Are GW samples from all MWs sampled for all required parameters? Are there any GW quality violations? Is GW-59A certification form completed for facility? Is a copy of current permit on-site? Are current metals and nutrient analysis available? Are nutrient and metal loading calculating most limiting parameters? a. TCLP analysis? b. SSFA (Standard Soil Fertility Analysis)? Are PAN balances being maintained? Are PAN balances within permit limits? Has land application equipment been calibrated? Are there pH records for alkaline stabilization? Are there pH records for the land application site? Are nutrient/crop removal practices in place? Do lab sheets support data reported on Residual Analysis Summary? Are hauling records available? Are hauling records maintained and up-to-date? # Has permittee been free of public complaints in last 12 months? Has application occurred during Seasonal Restriction window? Class A product distributed to the public for free. PAN is calculated for consumer information purposes; however, no set permit limit as end use varies. 2020 Distirbution data and results will be reviewed under a seperate report. The first quarter results for 2021 were reviewed during the inspection. No nutrient limiting factor as receiving crop varies. Metals monthly average and ceiling concentration limits are referenced to determine if distribution is allowed. Comment: Pathogen and Vector Attraction Yes No NA NE a. Fecal coliform SM 9221 E (Class A or B) Class A, all test must be <1000 MPN/dry gram Geometric mean of 7 samples per monitoring period for class B<2.0*10E6 CFU/dry gram Fecal coliform SM 9222 D (Class B only) Geometric mean of 7 samples per monitoring period for class B<2.0*10E6 CFU/dry gram b. pH records for alkaline stabilization (Class A) Page 3 of 4 DocuSign Envelope ID: F06A7C8F-91C5-46ED-8A01-22ED030864C4 Inspection Date: Permit: Inspection Type : Owner - Facility: Reason for Visit: WQ0002127 03/11/2021 Compliance Evaluation City of Morganton Routine c. pH records for alkaline stabilization (Class B) Temperature corrected d. Salmonella (Class A, all test must be < 3MPN/4 gram day) e. Time/Temp on: Digester (MCRT) Compost Class A lime stabilization f. Volatile Solids Calculations g. Bench-top Aerobic/Anaerobic digestion results Comment: Treatment Yes No NA NE Check all that apply Aerobic Digestion Anaerobic Digestion Alkaline Pasteurization (Class A) Alkaline Stabilization (Class B) Compost Drying Beds Other Thickened sludge from the centrifuges is mixed with wood chips (bulking agent) to build compost piles. Facility utilizes static aerated compost piles to meet pathogen and vector attraction reduction. See summary for details. Comment: Sampling Yes No NA NE Describe sampling: See below and summary. Is sampling adequate? Is sampling representative? Facility takes cross-sectional samples of the compost as the pile is being built after screening. See summary for additional details. Comment: Page 4 of 4 DocuSign Envelope ID: F06A7C8F-91C5-46ED-8A01-22ED030864C4 Certificate Of Completion Envelope Id: F06A7C8F91C546ED8A0122ED030864C4 Status: Completed Subject: Please DocuSign: WQ0002127_CEI.rpt.pdf, WQ0002127_CEI.ltr.docx Source Envelope: Document Pages: 5 Signatures: 1 Envelope Originator: Certificate Pages: 2 Initials: 2 Mikal Willmer AutoNav: Enabled EnvelopeId Stamping: Enabled Time Zone: (UTC-05:00) Eastern Time (US & Canada) 217 W. Jones Street Raleigh, NC 27699 Mikal.willmer@ncdenr.gov IP Address: 149.168.204.10 Record Tracking Status: Original Mar 31, 2021 | 07:24 Holder: Mikal Willmer Mikal.willmer@ncdenr.gov Location: DocuSign Security Appliance Status: Connected Pool: StateLocal Storage Appliance Status: Connected Pool: North Carolina Department of Environmental Quality Location: DocuSign Signer Events Signature Timestamp Mikal Willmer mikal.willmer@ncdenr.gov Environmental Specialist North Carolina Department of Environmental Quality Security Level: Email, Account Authentication (None) Signature Adoption: Pre-selected Style Using IP Address: 149.168.204.10 Sent: Mar 31, 2021 | 07:25 Viewed: Mar 31, 2021 | 07:25 Signed: Mar 31, 2021 | 07:25 Electronic Record and Signature Disclosure: Not Offered via DocuSign Lauren Armeni lauren.armeni@ncdenr.gov North Carolina Department of Environmental Quality Security Level: Email, Account Authentication (None)Signature Adoption: Pre-selected Style Using IP Address: 149.168.204.10 Sent: Mar 31, 2021 | 07:25 Viewed: Mar 31, 2021 | 08:33 Signed: Mar 31, 2021 | 08:33 Electronic Record and Signature Disclosure: Not Offered via DocuSign In Person Signer Events Signature Timestamp Editor Delivery Events Status Timestamp Agent Delivery Events Status Timestamp Intermediary Delivery Events Status Timestamp Certified Delivery Events Status Timestamp Carbon Copy Events Status Timestamp Witness Events Signature Timestamp Notary Events Signature Timestamp Envelope Summary Events Status Timestamps Envelope Summary Events Status Timestamps Envelope Sent Hashed/Encrypted Mar 31, 2021 | 07:25 Certified Delivered Security Checked Mar 31, 2021 | 08:33 Signing Complete Security Checked Mar 31, 2021 | 08:33 Completed Security Checked Mar 31, 2021 | 08:33 Payment Events Status Timestamps