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Home My WebLink AboutWQ0036676_Compliance Evaluation Inspection_20180619Water Resources Environmental Quality June 19, 2018 Mr. Glen De Lozier, QC Manager via Email Blue Dot Readi-Mix Post Office Box 23029 Mint Hill, North Carolina 28227 Dear Mr. De Lozier: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director Subject: Non -Discharge Permit Inspection Recycle System - Permit #WQ0036676 Blue Dot Readi-Mix — Exchange Street Facility Mecklenburg County Mooresville Regional Office (MRO) staff conducted a compliance inspection on June 14tH 2018 at the referenced facility. The recycle system appeared to be operating in accordance with permit conditions at the time of inspection. Items noted during the previous inspection have been adequately addressed: the aggregate reclaimer, although currently not utilized, was repaired, and on-site operational logs and maintenance records are now well documented. This permit is currently in the renewal process with our Central Office permitting staff. You may contact Emily. Gercke(a)_ncdenr.com with questions related to the renewal. The MRO would like to thank you and Mr. Ronnie Vickerstaff for your time during the site visit. The attached report should be self-explanatory; however, you may contact Maria Schutte by phone (704-235-2184) or email (maria.schutte(c_ncdenr.gov) with questions. Sincerely, Doc�ulSigned by: A1 CC681A 274'15... W. orey asinger, Regional Supervisor Mooresville Regional Office Water Quality Regional Operations Section Division of Water Resources, NCDEQ Attachment(s): WQ0036676 Inspection Report CC: Paul Cochrane, President, Exchange Street, LLC (email) Ronnie Vickerstaff, Plant Manager — Exchange Street Facility (email) State of North Carolina I Environmental Quality I Water Resources I Water Quality Regional Operations Mooresville Regional Office 1 610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115 704 663 1699 State of North Carolina Department of Environmental Quality Division of Water Resources Roy Cooper, Governor Michael S. Regan, Secretary Linda Culpepper, Interim Director NON -DISCHARGE COMPLIANCE INSPECTION Recycle/Reuse/Reclamation System GENERAL INFORMATION Owner: Exchange Street, LLC County: Mecklenburg Permit #: W00036676 (Closed -Loop Recce) Project Name: Blue Dot Readi-Mix — Exchange Street Issuance Date: 11/20/2013 Expiration Date: 10/31/2018 Permittee: Paul Cochrane, President Phone: 704-971-7676 email: pcochrane(a,bluedotreadimix.com Additional Contact: Glen De Lozier, QC Manager Phone: 704-971-7676 Cell: 704-201-1840 email: gdelozier(a)bluedotreadimix.com Facility Contact: Ronnie Vickerstaff, Plant Manager Phone: 704-391-3000 Cell: 704-620-3988 Email: rvickerstaff(a�bluedotreadimix.com Reason for Inspection X ROUTINE COMPLAINT FOLLOW-UP OTHER Type of Inspection Collection System Spray Irrigation Sludge X Other Inspection Date(s): June 14, 2018 Inspection Summary: (additional comments may be included on attached pages) This site visit included an inspection of the cement truck wash recycle system and a records review. MRO staff met with Glen De Lozier and Ronnie Vickerstaff. Records show much improvement from previous inspections. Daily records now document #of trucks washed and a separate maintenance log is now available on-site. Aggregate hauling records are maintained in the Mint Hill office, but 2018 data was received by email shortly after the inspection. The recycle system appears to function well, the final water is surprisingly clear as the bag filtration for this system does an excellent job removing fines. A make -shift holding area for storage of concrete residuals removed from the wash basins, appears to adequately retain the wet aggregate material until hauled for proper disposal; however, more frequent hauling may be necessary as production increases. • The permit renewal is in process as noted in the cover letter. • The MRO should be informed of any changes to the contact information noted above. Is a follow-up inspection necessary? yes, X no Inspector Name/Title: Maria Schutte, Environmental Specialist I Telephone No.: 704-663-1699 Fax No. 704-663-6040 Date of Inspection: 06/14/2018 Non -Discharge Permit Inspection Page 2 Permit #WQ0036676 Blue Dot Readi-Mix-Exchange Street — Mecklenburg County Treatment Y Are treatment facilities consistent with those outlined in the current permit. Y Do all treatment units appear to be operational? If no, note below. Comment: The agate reclaimer was repaired since the last inspection, but currently is not beim utilized. Truck Wash (Concrete Slurry) Settling Chambers (check any/all that apply) Y Influent structure (free of obstructions) N Baffles/curtains (in need of repair) Y Freeboard maintained; System designis for over -flow to next basins. Freeboard maintenance should not be an issue. N Evidence of overflow Y Unusual color (very black, textile colors); Slurry is color of the concrete washed into the system. N Foam (are antifoam agents used) N Excessive solids buildup (from bottom); The tank bottom is not visible through the slurry; however, solids from the settling chambers are removed, partially air-dried and stored until hauled. Heavy material is removed with manually operated equipment. The aggregate reclaimer is not currently utilized, but this does not affect the water recycle system. The slurry (fines) are processed through the filter bag apparatus, resulting in a clear make-up water as previously noted in the "Inspection Summary" on page 1. Y Effluent structure (free of obstructions, easily accessible) Comment: See Residuals section. Filters (bag -filtration unit) Y Is filter media present? Y Is media the correct size and type? Y Is clear well free of solids? Comment: This is an accordion bag -filtration unit to clari& water for re -use in concrete production. Recycle (Clear Water) Chamber (check any/all that apply) Y Influent structure NA Baffles/curtains (in need of repair) Y Freeboard maintained N Evidence of overflow N Unusual color N Foam N Excessive solids build-up Y Effluent structure (free of obstructions, easily accessible) Residuals storage/treatment: There are two concrete residuals generation points in the system. The first is after the "diriy" water settling chambers by the agjzregate reclaimer (or manual removal) and the second is the bag- alter press. Concrete residuals are periodically hauled for proper disposal or reuse. Hauling records are maintained at the Mint Hill office. but are available by email. Mr. De Lozier emailed the 2018 hauling data immediately after the meeting Non -Discharge Permit Inspection Page 3 Permit #WQ0036676 Blue Dot Readi-Mix-Exchange Street — Mecklenburg County Recordkeeping Y Is permit available upon request? Y Are operational logs present? Y Complete? Y Is the operation and maintenance manual present? Complete? An O&M manual is not maintained on-site, but maintenance notations are now kept on-site in a separate notebook. N Has DWQ received any complaints regarding the facility in the last 12 months? Comment: Record keeping and inspection logs are greatly improved. Other noted conditions The cat -walk platform beneath the bg -filtration unit has a full-length, concave depression, which MRO staff questioned as the normal design or a recent flaw. Routine sa fiy assessment of the platform is recommended, as staff must utilize ite or filter replacement. Compliance Inspection Report Permit: WQ0036676 Effective: 11/20/13 Expiration: 10/31/18 owner: Exchange Street LLC SOC: Effective: Expiration: Facility: Blue Dot Readi-Mix - Exchange Street County: Mecklenburg 1022 Exchange St Region: Mooresville Charlotte NC 28208 Contact Person: Glen De Lozier Title: Phone: 704-971-7676 Directions to Facility: Rt off of salisbury hwy nc hwy 70 onto intercraft dr then a distance of 1025 ft and sight will be on rt. System Classifications: Primary ORC: Certification: Phone: Secondary ORC(s): On -Site Representative(s): Related Permits: NCG140430 Exchange Street LLC - Blue Dot Readi-Mix - Exchange Street Inspection Date: 06/14/2018 Entry Time: 10:02AM Exit Time: 11:52AM Primary Inspector: Maria Schutte Phone: 704-663-1699 Secondary Inspector(s): Reason for Inspection: Routine Inspection Type: Compliance Evaluation Permit Inspection Type: Closed -Loop Recycle Facility Status: Compliant ❑ Not Compliant Question Areas: Miscellaneous Questions Treatment Treatment Filters Record Keeping Treatment Sludge Storage/Treatment Storage End Use -Reuse (See attachment summary) Page: 1 Permit: WQ0036676 Owner - Facility: Exchange Street LLC Inspection Date: 06/14/2018 Inspection Type : Compliance Evaluation Reason for Visit: Routine Inspection Summary: This site visit included an inspection of the cement truck wash recycle system and a records review. MRO staff met with Glen De Lozier and Ronnie Vickerstaff. Records show much improvement from previous inspections. Daily records now document #of trucks washed and a separate maintenance log is now available on-site. Aggregate hauling records are maintained in the Mint Hill office, but 2018 data was received by email shortly after the inspection. The recycle system appears to function well, the final water is surprisingly clear as the bag filtration for this system does an excellent job removing fines. A make -shift holding area for storage of concrete residuals removed from the wash basins, appears to adequately retain the wet aggregate material until hauled for proper disposal; however, more frequent hauling may be necessary as production increases. • The permit renewal is in process as noted in the cover letter. • The MRO should be informed of any changes to the contact information. Other noted conditions: The cat -walk platform beneath the bag -filtration unit has a full-length, concave depression, which MRO staff questioned as the normal design or a recent flaw. Routine safety assessment of the platform is recommended, as staff must utilize it for filter replacement. Page: 2 Permit: WQ0036676 Owner - Facility: Exchange Street LLC Inspection Date: 06/14/2018 Inspection Type : Compliance Evaluation Reason for Visit: Routine Type Yes No NA NE Reuse (Quality) ❑ Lagoon Spray, LR ❑ Single Family Spray, LR ❑ Infiltration System ❑ Activated Sludge Spray, LR ❑ Activated Sludge Spray, HR ❑ Activated Sludge Drip, LR ❑ Single Family Drip ❑ Recycle/Reuse ❑ Treatment Yes No NA NE Are Treatment facilities consistent with those outlined in the current permit? 0 ❑ ❑ ❑ Do all treatment units appear to be operational? (if no, note below.) 0 ❑ ❑ ❑ Comment: The aggregate reclaimer was repaired since the last inspection, but currently is not being utilized. Treatment Filters Yes No NA NE Is the filter media present? 0 ❑ ❑ ❑ Is the filter media the correct size and type? 0 ❑ ❑ ❑ Is the air scour operational? ❑ ❑ 0 ❑ Is the scouring acceptable? ❑ ❑ 0 ❑ Is the clear well free of excessive solids? 0 ❑ ❑ ❑ Is the mud well free of excessive solids and filter media? ❑ ❑ 0 ❑ Does backwashing frequency appear adequate? ❑ ❑ 0 ❑ Comment: This is an accordion bag -filtration unit to clarify water for re -use in concrete production. Treatment Sludge Storage/Treatment Yes No NA NE Is the aeration operational? ❑ ❑ ❑ Is the aeration pattern even? ❑ ❑ ❑ If required, are Sanitary "Ts" present in tankage? ❑ ❑ 0 ❑ Comment: There are two concrete residuals generation points in the system. The first is after the "dirty" water settling chambers bV the aggregate reclaimer (or manual removal) and the second is the bag -filter press. Concrete residuals are periodically hauled for proper disposal or reuse. Hauling records are maintained at the Mint Hill office, but are available bV email. Mr. De Lozier emailed the 2018 hauling data immediately after the meeting. Record Keeping Yes No NA NE Is a copy of current permit available? 0 ❑ ❑ ❑ Page: 3 Permit: WQ0036676 Owner - Facility: Exchange Street LLC Yes No NA NE Is the acreage in the permit being utilized? Inspection Date: 06/14/2018 Inspection Type : Compliance Evaluation Reason for Visit: Routine Are monitoring reports present: NDMR? ❑ ❑ 0 ❑ NDAR? ❑ ❑ 0 ❑ Are flow rates less than of permitted flow? ❑ ❑ 0 ❑ Are flow rates less than of permitted flow? ❑ ❑ 0 ❑ Are application rates adhered to? ❑ ❑ 0 ❑ Is GW monitoring being conducted, if required (GW -59s submitted)? ❑ ❑ 0 ❑ Are all samples analyzed for all required parameters? ❑ ❑ 0 ❑ Are there any 2L GW quality violations? ❑ ❑ 0 ❑ Is GW -59A certification form completed for facility? ❑ ❑ 0 ❑ Is effluent sampled for same parameters as GW? ❑ ❑ 0 ❑ Do effluent concentrations exceed GW standards? ❑ ❑ 0 ❑ Are annual soil reports available? ❑ ❑ 0 ❑ # Are PAN records required? ❑ ❑ 0 ❑ # Did last soil report indicate a need for lime? ❑ ❑ 0 ❑ If so, has it been applied? ❑ ❑ 0 ❑ Are operational logs present? 0 ❑ ❑ ❑ Are lab sheets available for review? ❑ ❑ 0 ❑ Do lab sheets support data reported on NDMR? ❑ ❑ 0 ❑ Do lab sheets support data reported on GW -59s? ❑ ❑ 0 ❑ Are Operational and Maintenance records present? 0 ❑ ❑ ❑ Were Operational and Maintenance records complete? 0 ❑ ❑ ❑ Has permittee been free of public complaints in last 12 months? 0 ❑ ❑ ❑ Is a copy of the SOC readily available? ❑ ❑ 0 ❑ No treatment units bypassed since last inspection? ❑ 0 ❑ ❑ Comment: See additional comments under the summary section. An O&M manual is not maintained on-site, but maintenance notations are now kept on-site in a separate notebook. Record keeping and inspection logs are greatly improved. End Use -Reuse Yes No NA NE Is the acreage in the permit being utilized? ❑ ❑ ❑ Does the acreage specified in the permit correspond to the measured acreage at the site? ❑ ❑ ❑ Are all essential units provided in duplicate? ❑ ❑ ❑ Is an automatically activated standby power source available? ❑ ❑ ❑ Is the equalization capacity adequate? ❑ ❑ ❑ Is aerated flow equalization present? ❑ ❑ ❑ Has the turbidity meter been calibrated in the last 12 months? ❑ ❑ 0 ❑ Does the turbidity meter have recording capabilities? ❑ ❑ ❑ Is all flow diverted at the appropriate times? ❑ ❑ ❑ Page: 4 Permit: WQ0036676 Owner - Facility: Exchange Street LLC Inspection Date: 06/14/2018 Inspection Type : Compliance Evaluation Reason for Visit: Routine Is all upset wastewater diverted from reuse storage unit? ❑ ❑ ❑ Is all upset wastewater treated, retreated, or disposed of acceptably? ❑ ❑ ❑ Is upset wastewater treated prior to discharge to irrigation storage? ❑ ❑ ❑ Is public access restricted from irrigation area during active site use? ❑ ❑ ❑ If golf course, is a sign posted in plain sight on the club house? ❑ ❑ ❑ Is the cover crop acceptable? ❑ ❑ ❑ Are buffers adequate? ❑ ❑ ❑ Is the site free of ponding/runoff? ❑ ❑ ❑ Is the acreage in the permit being utilized? ❑ ❑ ❑ Is the application equipment acceptable? ❑ ❑ ❑ Is the application area free of limiting slopes? ❑ ❑ ❑ How close is the closest water supply well? ❑ ❑ ❑ Are any supply wells within the CB? ❑ ❑ ❑ Are any supply wells within 250' of the CB? ❑ ❑ ❑ Is municipal water available in the area? ❑ ❑ ❑ Are GW monitoring wells required? ❑ ❑ ❑ Are GW monitoring wells located properly w/ respect to RB and CB? ❑ ❑ ❑ Are GW monitoring wells properly constructed, including screened interval? ❑ ❑ 0 ❑ Comment: This is a concrete facility with a truck wash recycle system. The final filtered water is reused as make-up water in concrete mixtures. Page: 5