WQ0028666_Compliance Evaluation Inspection_20230913

DocuSign Envelope ID: 78F14B73-4970-4632-9876-C6C59DD3854D
Compliance Inspection Report
Permit: WQ0028666 Effective: 08/12/19 Expiration: 08/31/24 Owner : Aqua North Carolina Inc
SOC: Effective: Expiration: Facility: Cannonsgate at Bogue Sound WWTP
County: Carteret 4201 Hwy 24
Region: Wilmington
Newport NC 28570
Contact Person: Joel A Mingus Title: Coastal Area Manager Phone: [phone]
Directions to Facility:
Travel Hwy 24E from Cedar Point to Ocean. Turn R across from West Carteret Water Corp.
System Classifications: WW3.,
Primary ORC: Raymond Lacy Braxton Certification: 999895 Phone: [phone]
Secondary ORC(s):
On -Site Representative(s):
On -site representative Joel A Mingus 910-270-1412
Related Permits:
WQ0037078 Aqua North Carolina Inc - Bogue Watch to Cannonsgate WWTP Interconnect
WQ0029821 Aqua North Carolina Inc - Bogue Watch WWTP
Inspection Date: 09/13/2023 Entry Time 10:OOAM Exit Time: 11:50AM
Primary Inspector: Helen I Perez o�RQexg ed by. Phone: [phone]
Secondary Inspector(s): lI^J
1 D646B4A39694BE...
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: High Rate Infiltration
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Treatment Flow Measurement -Effluent Treatment Flow Measurement -Influent Miscellaneous Questions
Treatment Flow Measurement -Water Treatment Treatment Barscreen
Use Records
Record Keeping Treatment Activated Sludge Treatment Disinfection
End Use -Infiltration Treatment Flow Measurement Standby Power
(See attachment summary)
Page 1 of 6

DocuSign Envelope ID: 78F14B73-4970-4632-9876-C6C59DD3854D
Permit: WQ0028666 Owner - Facility: Aqua North Carolina Inc
Inspection Date: 09/13/2023 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
A routine inspection of the Cannonsgate at Bogue Sound WWTP was conducted on September 13, 2023. The purpose of
the evaluation was to verify that the facility is operating in compliance with the conditions and limitations specified in Permit
WQ0028666. Joel Mingus and Raymond Braxton were present during the inspection.
This 200,000 GPD Membrane Bio-Reactor (MBR) facility treated an averaged of 38,000 GPD this July. The Cannonsgate
Subdivsion still has many vacant lots. The facility continues to receive wastewater from the Bogue Watch Subdivsion
through the conveyance line from the Bogue Watch WWTP (WQ0029821) EQ basin. Flow is metered and reported on the
monitoring report under PPI 002.
A record review for this permit cycle shows no effluent violations. Monitoring Well #6 continues to have consistent Ammonia
limit exceedances. However, the plant effluent Ammonia levels are typically below the detection limit or barely measurable.
The current permit expires on August 31, 2024. A renewal application needs to be submitted no later than March 4, 2024.
The facility is compliant with Non -Discharge Permit WQ0028666. Please review the comment sections of the inspection
report for more details.
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DocuSign Envelope ID: 78F14B73-4970-4632-9876-C6C59DD3854D
Permit: WQ0028666 Owner - Facility: Aqua North Carolina Inc
Inspection Date: 09/13/2023 Inspection Type : Compliance Evaluation
Reason for Visit: Routine
Type
Yes No NA NE
Activated Sludge Spray, LR
❑
Single Family Spray, LR
❑
Activated Sludge Spray, HR
❑
Activated Sludge Drip, LR
❑
Recycle/Reuse
❑
Single Family Drip
❑
Reuse (Quality)
❑
Lagoon Spray, LR
❑
Infiltration System
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 odor control system has never been used by Aqua and does not appear to be needed.
Only one train was in operation due to the low flow.
Treatment Flow Measurement -Influent
Yes No NA NE
Is flowmeter calibrated annually?
❑
❑ ❑
Is flowmeter operating properly?
❑
❑ ❑
Does flowmeter monitor continuously?
❑
❑ ❑
Does flowmeter record flow?
❑
❑ ❑
Does flowmeter appear to monitor accurately?
❑
❑ ❑
Comment:
Treatment Flow Measurement -Water Use Records Yes No NA NE
Is water use metered? ❑ 1:10 ❑
Are the daily average values properly calculated? ❑ ❑ 0 ❑
Comment:
Treatment Flow Measurement -Effluent Yes No NA NE
Is flowmeter calibrated annually? 0 ❑ ❑ ❑
Is flowmeter operating properly? ❑ ❑ ❑
Does flowmeter monitor continuously? ❑ ❑ ❑
Does flowmeter record flow? ❑ ❑ ❑
Does flowmeter appear to monitor accurately? 0 ❑ ❑ ❑
Comment: The effluent flowmeter, used for reporting, the flowmeter that tracks flow from Bogue Watch
and the turbidimeter were calibrated in October 2022 by Delta Systems.
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DocuSign Envelope ID: 78F14B73-4970-4632-9876-C6C59DD3854D
Permit: WQ0028666 Owner - Facility: Aqua North Carolina Inc
Inspection Date: 09/13/2023 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Standby Power Yes No NA NE
Is automatically activated standby power available? 0 ❑ ❑ ❑
Is generator tested weekly by interrupting primary power source? ❑ ❑ ❑
Is generator operable? ❑ ❑ ❑
Does generator have adequate fuel? ❑ ❑ ❑
Comment: The generator is tested weekly and major preventative maintenance is performed yearly.
Treatment Barscreen
Yes No NA NE
Is it free of excessive debris?
0
❑ ❑ ❑
Is disposal of screenings in compliance?
0
❑ ❑ ❑
Are the bars spaced properly?
❑
❑ ❑
Is the unit in good condition?
0
❑ ❑ ❑
Comment: Aqua has plans in their budget to replace the current mechanically cleaned fine
screen/compactor/auger with a cascade -type fine screen. The EQ basin high-level alarms were
tested and found to be operational and notified the operator .
Treatment Activated Sludge Yes No NA NE
Is the aeration mechanism operable? ❑ ❑ ❑
Is the aeration basin thoroughly mixed? ❑ ❑ ❑
Is the aeration equipment easily accessed? ❑ ❑ ❑
Is Dissolved Oxygen adequate? ❑ ❑ ❑
Are Settleometer results acceptable? ❑ ❑ ❑
Is activated sludge an acceptable color? ❑ ❑ ❑
Comment: The Membrane Bio-Reactor units are completely enclosed. The micofiltration modules
self -clean quarterly with a Citric Acid solution. Wasted solids are removed by Lewis Farms once
a year.
Treatment Disinfection
Yes No NA NE
Is the system working?
0
❑ ❑ ❑
Do the fecal coliform results indicate proper disinfection?
❑ ❑ ❑
Is there adequate detention time (>=30 minutes)?
❑
❑ ❑
Is the system properly maintained?
❑ ❑ ❑
If gas, does the cylinder storage appear safe?
❑
❑ ❑
Is the fan in the chlorine feed room and storage area operable?
❑
❑ ❑
Is the chlorinator accessible?
❑
❑ ❑
If tablets, are tablets present?
❑
❑ ❑
Are the tablets the proper size and type?
❑
❑ ❑
Is contact chamber free of sludge, solids, and growth?
❑
❑ ❑
If UV, are extra UV bulbs available?
❑ ❑ ❑
If UV, is the UV intensity adequate?
❑
❑ ❑
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DocuSign Envelope ID: 78F14B73-4970-4632-9876-C6C59DD3854D
Permit: WQ0028666 Owner - Facility: Aqua North Carolina Inc
Inspection Date: 09/13/2023 Inspection Type : Compliance Evaluation Reason for Visit: Routine
# Is it a dual feed system? ❑ ❑ 0 ❑
Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? ❑ ❑ 0 ❑
If yes, then is there a Risk Management Plan on site? ❑ ❑ ❑
If yes, then what is the EPA twelve digit ID Number? (1 000-- )
If yes, then when was the RMP last updated?
Comment: No comment.
Record Keeping
Yes No NA NE
Is a copy of current permit available?
❑ ❑ ❑
Are monitoring reports present: NDMR?
❑ ❑ ❑
NDAR?
❑ ❑ ❑
Are flow rates less than of permitted flow?
❑ ❑ ❑
Are flow rates less than of permitted flow?
❑ ❑ ❑
Are application rates adhered to?
❑ ❑ ❑
Is GW monitoring being conducted, if required (GW-59s submitted)?
❑ ❑ ❑
Are all samples analyzed for all required parameters?
❑ ❑ ❑
Are there any 2L GW quality violations?
❑ ❑ ❑
Is GW-59A certification form completed for facility?
❑
❑ ❑
Is effluent sampled for same parameters as GW?
❑ ❑ ❑
Do effluent concentrations exceed GW standards?
❑
❑ ❑
Are annual soil reports available?
❑
❑ ❑
# Are PAN records required?
❑
❑ ❑
# Did last soil report indicate a need for lime?
❑
❑ ❑
If so, has it been applied?
❑
❑ ❑
Are operational logs present?
❑ ❑ ❑
Are lab sheets available for review?
❑ ❑ ❑
Do lab sheets support data reported on NDMR?
❑
❑ ❑
Do lab sheets support data reported on GW-59s?
❑
❑ ❑
Are Operational and Maintenance records present?
❑ ❑ ❑
Were Operational and Maintenance records complete?
❑ ❑ ❑
Has permittee been free of public complaints in last 12 months?
❑ ❑ ❑
Is a copy of the SOC readily available?
❑
❑ ❑
No treatment units bypassed since last inspection?
0
❑ ❑ ❑
Comment: Operational/maintenance lops, monitoring reports, COCs and lab reports were available for
review and appeared to be complete. MW-6, located on the east side of the subdivision,
continues to have Ammonia limit exceedances. However, the
plant effluent Ammonia levels are
tvDically below the detection limit or barelv measurable.
End Use -Infiltration Yes No NA NE
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DocuSign Envelope ID: 78F14B73-4970-4632-9876-C6C59DD3854D
Permit: WQ0028666 Owner - Facility: Aqua North Carolina Inc
Inspection Date: 09/13/2023 Inspection Type : Compliance Evaluation Reason for Visit: Routine
# Is the application High Rate or Low Rate?
High Rate
Are buffers maintained?
0
❑ ❑ ❑
Are any supply wells within the CB?
❑
❑ ❑
Are any supply wells within 250' of the CB?
❑
❑ ❑
Is municipal water available in the area?
0
❑ ❑ ❑
Are GW monitoring wells required?
0
❑ ❑ ❑
Are GW monitoring wells located properly w/ respect to RB and CB?
❑
❑ ❑
Are GW monitoring wells properly constructed, including screened interval?
❑
❑ ❑
Is a usable green area maintained?
❑
❑ 0 ❑
Is the disposal site acceptable?
0
❑ ❑ ❑
Is the distribution equipment acceptable?
0
❑ ❑ ❑
Is the disposal site free of ponding?
❑
❑ 0 ❑
Is the disposal site free of breakout?
0
❑ ❑ ❑
Are the disposal sites free of solids, algae, etc.?
❑
0 ❑ ❑
Do the records show that the fields are properly maintained?
0
❑ ❑ ❑
Are the disposal sites free of vegetation?
0
❑ ❑ ❑
Do any surface water features appear to be adversely impacted by GW discharge?
❑
❑ 0 ❑
No chemicals or rototiller used to eliminate vegetation, solids, algae, etc.?
❑
❑ 0 ❑
Comment: The 4 infiltration basins had a freeboard of 3 feet. During this
permit cycle, Aqua checked the 4
infiltration basins for any solids that may have accumulated and found very little deposited
materials. The liner for the 5-day upset pond was must recently
replaced and the freeboard was
6 feet.
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