WQ0000185_Modification_20230815

Initial Review
Reviewer nathaniel.thornburg
Is this submittal an application? (Excluding additional information.) *
Yes No
Permit Number (IR) * WO0000185
Applicant/Permittee Ocean Sands Water and Sewer District
Applicant/Permittee Address 734 Ocean Trail, Corolla, NC 27927
Is the owner in BIMS? Yes No Is the facility in BIMS? Yes No
Owner Type County
Facility Name Ocean Sands WWTP
County Currituck
Fee Category Major
Is this a complete application?*
Yes No
Signature Authority
Signature Authority Title
Signature Authority Email
Document Type (if non -application)
Email Notifications
Does this need review by the hydrogeologist? * Yes No
Regional Office
CO Reviewer
Admin Reviewer
Fee Amount $0
Complete App Date
08/15/2023
Below list any additional email address that need notification about a new project.
Email Address
Comments to be added to email notfication
Comments for Admin
Comments for RO

Comments for Reviewer
Comments for Applicant

Submittal Form
Project Contact Information
Please provide information on the person to be contacted by NDB Staff regarding electronic submittal, confirmation of receipt, and other correspondence.
Name" Ocean Sands Wastewater Treatment Plant
Email Address*
[e-mail]
Project Information
.........................
Application/Document Type*
New (Fee Required)
Modification - Major (Fee Required)
Renewal with Major Modification (Fee
Required)
Annual Report
Additional Information
Other
Phone Number*
2524918147
Modification - Minor
Renewal
GW-59, NDMR, NDMLR, NDAR-1,
N DAR-2
Residual Annual Report
Change of Ownership
We no longer accept these monitoring reports through this portal. Please click on the link below and it will take you to the correct form.
https://edoes.deq.nc.gov/Forms/NonDischarge_Monitoring_Report
Permit Type:*
Wastewater Irrigation
High -Rate Infiltration
Other Wastewater
Reclaimed Water
Closed -Loop Recycle
Residuals
Single -Family Residence Wastewater
Other
Irrigation
Permit Number:*
WQ0000185
Has Current Existing permit number
Applicant/Permittee *
Ocean Sands Water and Sewer District
Applicant/Permittee Address*
734 Ocean Trail, Corolla, NC 27927
Facility Name*
Ocean Sands WWTP
Please provide comments/notes on your current submittal below.
This permit was initially sent in error to Mr. John Hennessey in NPDES unit. Please see supplemental attachments of what was sent. It is our
understanding that there is no fee associated with this type of application. Please advise if different.
At this time, paper copies are no longer required. If you have any questions about what is required, please contact Nathaniel Thornburg
at [e-mail].
Please attach all information required or requested for this submittal to be reviewed here.
(Application Form, Engineering Plans, Specifications, Calculations, Etc.)
P23069 Minor Permit Mod Application Pkg 08-11-2023.pdf 5.8MB
Upload only 1 PDF document (less than 250 MB). Multiple documents must be combined into one PDF file unless file is larger
than upload limit.
* By checking this box, I acknowledge that I understand the application will not be accepted for pre -review until the fee (if required) has
been received by the Non -Discharge Branch. Application fees must be submitted by check or money order and made payable to the
North Carolina Department of Environmental Quality (NCDEQ). I also confirm that the uploaded document is a single PDF with all parts
of the application in correct order (as specified by the application).
Mail payment to:
NCDEQ — Division of Water Resources
Attn: Non -Discharge Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Signature
Submission Date 8/15/2023

Quible
Quible & Associates, P.C.
ENGINEERING • ENMRONMENTALSCIENCES • PLANNING • SURVEYIN.'..
August 11, 2023 SINCE 1959
Mr. John Hennessy
NC DEQ 1 DWR 1 NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Ocean Sands Wastewater Treatment Plant
Permit No. WQ0000185
WWTP Minor Modification Permit Application
Dear Mr. Hennessy,
P.O. grower 87o
IGTty Hawk NC 27949
Phone: [phone]
Fox: 252-491-8146
web: quible.com
On behalf of Currituck County, please find enclosed the following materials intended to qualify as an
application for a Minor Permit Modification for the Ocean Sands Wastewater Treatment Plant Permit No.
WQ0000185:
• Application Form HRIS 06-16;
• Copy of the Engineering Plans;
• Copy of Product Cut Sheets and Specifications;
• Copy of Operation and Maintenance Plan;
• Copy of Existing Permit No. WQ0000185.
The scope of work for the minor modification to the WWTP includes replacement of the existing broken grinder
and spiralift auger screw fine screen with a new primary 3 mm fine self-cleaning automatic mechanical bar
screen. Detailed information for the replacement parts is included in this package.
This is an important step towards the County bringing the Plant back within permit requirements. We
respectfully request approval of the minor modification to Permit No. WQ0000185. If you have any questions
or need any further information, please do not hesitate to contact the undersigned at 252.491.8147 or via email
at [e-mail].
Sincerely,
Quible & Associates, P.C.
Christiana Tambone, P.M.P.
cc Eric Weatherly, P.E.
file
enc as bulleted

State of North Carolina
Department of Environmental Quality
DWR Division of Water Resources
r
15A NCAC 02T .0700 — HIGH -RATE INFILTRATION SYSTEMS
Division of Water Resources INSTRUCTIONS FOR FORM: HRIS 06-16 & SUPPORTING DOCUMENTATION
Plans, specifications and supporting documents shall be prepared in accordance with 15A NCAC 02H .0400 (if necessary), 15A
NCAC 02L .0100, 15A NCAC 02T .01009 15A NCAC 02T .0700, Division Policies and good engineering practices. Failure to
submit all required items will necessitate additional processing and review time.
For more information, visit the Water Quality Permitting Section's Non -Discharge Permitting Unit website
General — When submitting an application to the Water Quality Permitting Section's Non -Discharge Permitting Unit, please use the
following instructions as a checklist in order to ensure all required items are submitted. Adherence to these instructions and checking
the provided boxes will help produce a quicker review time and reduce the amount of requested additional information.
Unless otherwise noted, the Applicant shall submit one original and two copies of the application and supporting documentation.
A. Cover Letter (All Application Packages):
® List all items included in the application package, as well as a brief description of the requested permitting action.
B. Application Fee (All New and Major Modification Application Packages):
❑ Submit a check, money order or electronic funds transfer made payable to: North Carolina Department of Environmental
Quality (NCDEQ). The appropriate fee amount for new and major modification applications may be found at: Standard Review
Project Fees.
C. High -Rate Infiltration Systems (FORM: HRIS 06-16) Application (All Application Packages):
® Submit the completed and appropriately executed High -Rate Infiltration Systems (FORM: HRIS 06-16) application. Any
unauthorized content changes to this form shall result in the application package being returned. If necessary for clarity or due
to space restrictions, attachments to the application may be made, as long as the attachments are numbered to correspond to the
section and item to which they refer.
❑ If the Applicant Type in Item L2. is a corporation or company, provide documentation it is registered for business with the
North Carolina Secretary of State.
❑ If the Applicant Type in Item I.2. is a partnership or d/b/a, enclose a copy of the certificate filed with the Register of Deeds in
the county of business.
® The facility name in Item IL 1. shall be consistent with the facility name on the plans, specifications, agreements, etc.
® The Professional Engineer's Certification on Page 13 of the application shall be signed, sealed and dated by a North Carolina
licensed Professional Engineer.
® The Applicant's Certification on Page 13 of the application shall be signed in accordance with 15A NCAC 02T .0106(b). Per
15A NCAC 02T .0106(c), an alternate person may be designated as the signing official if a delegation letter is provided from
a person who meets the criteria in 15A NCAC 02T .0106(b).
❑ If this project is for a renewal without modification, use the Non -Discharge System Renewal (FORM: NDSR) application.
D. Property Ownership Documentation (All Application Packages):
➢ Per 15A NCAC 02T .0704(f), the Applicant shall demonstrate they are the owner of all property containing the wastewater
treatment and high -rate infiltration facilities:
❑ Legal documentation of ownership (i.e., GIS, deed or article of incorporation), or
❑ Written notarized intent to purchase agreement signed by both parties with a plat or survey map, or
❑ Written notarized lease agreement that specifically indicates the intended use of the property and has been signed by both
parties, as well as a plat or survey map. Lease agreements shall adhere to the requirements of 15A NCAC 02L .0107.
❑ Provide all agreements, easements, setback waivers, etc. that have a direct impact on the wastewater treatment, conveyance,
storage and high -rate infiltration facilities.
INSTRUCTIONS FOR FORM: HRIS 06-16 & SUPPORTING DOCUMENTATION Page 1 of 6

E. Soil Evaluation (All Application Packages that include new high -rate infiltration sites):
❑ Per 15A NCAC 02T .0704(b) and the Soil Scientist Evaluation Policy, submit a detailed soil evaluation that has been signed,
sealed and dated by a North Carolina Licensed Soil Scientist and includes at a minimum:
❑ The report shall identify all the basins/fields with project name, location, and include a statement that the basins/fields
were recommended for the proposed land application activity.
❑ Field delineated detailed soils map meeting all of the requirements of the Soil Scientist Evaluation Policy.
❑ Soil profile descriptions meeting all of the requirements of the Soil Scientist Evaluation Policy.
❑ Provide all soil boring logs performed at the site.
❑ For non -basins, a standard soil fertility analysis conducted no more than one year prior to permit application for each map
unit in the soil map legend for the following parameters:
❑ Acidity ❑ Exchangeable sodium percentage (by calculation) ❑ Phosphorus
❑ Base saturation (by calculation) ❑ Magnesium ❑ Potassium
❑ Calcium ❑ Manganese ❑ Sodium
❑ Cation exchange capacity ❑ Percent humic matter ❑ Zinc
❑ Copper ❑ pH
➢ Saturated hydraulic conductivity (KSAT) data that shall include at a minimum:
❑ A minimum of three KsAT tests shall be conducted in the most restrictive horizon for each soil series in the soil map.
❑ All KsAT tests shall be conducted in areas representative of the site.
❑ All KsAT tests shall be run until steady-state equilibrium has been achieved.
❑ All collected KsAT data shall be submitted, including copies of field worksheets showing all collected readings.
❑ Submit a soil profile description for each KsAT data point that shall extend at least one foot below the tested horizon.
➢ Soil evaluation recommendations shall include at a minimum:
❑ A brief summary of each map unit and its composition and identification of minor contrasting soils.
❑ For non -basins, maximum precipitation rate (in/hr) for each soil/map unit within the proposed infiltration areas.
❑ Seasonal infiltration restrictions, if appropriate.
❑ Identification of areas not suitable for high -rate infiltration.
❑ Recommended geometric mean KsAT rate to be used in the water balance for each soil/map unit based upon in -situ
measurement of the saturated hydraulic conductivity from the most restrictive horizon.
❑ Recommended drainage coefficient to be used in the water balance based upon comprehensive site evaluation, review
of collected onsite data, minor amounts of contrasting soils and the nature of the wastewater to be applied.
❑ For non -basins, recommended annual hydraulic loading rate (in/yr) for each soil/map unit within the proposed
infiltration areas based upon in -situ KsAT measurements form the most restrictive soil horizon.
❑ For basins, recommended hydraulic loading rate (GPD/ft2) for each soil/map unit within the proposed infiltration areas
based upon in -situ KsAT measurements form the most restrictive soil horizon.
NOTE — If the soil evaluation was performed more than one year prior to the submittal of this application package, a statement shall
be included indicating that the site has not changed since the original investigation.
F. Agronomist Evaluation (All Application Packages that include new infiltration sites with cover crops or new crops for existing
infiltration sites):
❑ Per 15A NCAC 02T .0704(i), submit an agronomist evaluation that has been signed, sealed and dated by a qualified professional
and includes at a minimum:
❑ Proposed nutrient uptake values for each cover crop based upon each field's dominant soil series and percent slope.
❑ Plant available nitrogen calculations for each cover crop using the designed effluent concentrations in Application Item
V.1. and proposed mineralization and volatilization rates.
❑ Historical site consideration, soil binding and plant uptake of phosphorus.
❑ Seasonal infiltration restrictions, if appropriate.
❑ A clear and reproducible map showing all areas investigated and their relation to proposed fields and crops.
❑ Maintenance and management plan for all specified crops.
INSTRUCTIONS FOR FORM: HRIS 06-16 & SUPPORTING DOCUMENTATION Page 2 of 6

G. Hydrogeologic Report (All Application Packages treating industrial waste or having a design flow over 25,000 GPD):
❑ Per 15A NCAC 02T .0704(e), the Hydrogeologic Investigation and Reporting Policy, the Groundwater Modeling Policy and
the Performance and Analysis of Aquifer Slug Tests and Pumping Tests Policy, submit a detailed hydrogeologic description
that has been signed, sealed and dated by a qualified professional and includes at a minimum:
❑ A hydrogeologic description to a depth of 20 feet below land surface or bedrock, whichever is less. A greater depth of
investigation is required if the respective depth is used in predictive calculations.
❑ Representative borings within the infiltration areas and all proposed earthen impoundments.
❑ A description of the regional and local geology and hydrogeology.
❑ A description, based on field observations of the site, of the site topographic setting, streams, springs and other groundwater
discharge features, drainage features, existing and abandoned wells, rock outcrops, and other features that may affect the
movement of the contaminant plume and treated wastewater.
❑ Changes in lithology underlying the site.
❑ Depth to bedrock and occurrence of any rock outcrops.
❑ The hydraulic conductivity and transmissivity of the affected aquifer(s).
❑ Depth to the seasonal high water table (SHWT).
❑ A discussion of the relationship between the affected aquifers of the site to local and regional geologic and hydrogeologic
features.
❑ A discussion of the groundwater flow regime of the site prior to operation of the proposed facility and post operation of
the proposed facility focusing on the relationship of the system to groundwater receptors, groundwater discharge features,
and groundwater flow media.
❑ If the SHWT is within six feet of the surface, a mounding analysis to predict the level of the SHWT after wastewater
application.
H. Water Balance (All Application Packages that include new or modified infiltration sites, changes in flow or changes in storage):
❑ Per the Water Balance Calculation Policy, submit information clearly demonstrating that the effluent can be assimilated
regardless of precipitation events or temperature, and there are no crop or equipment maintenance issues that would necessitate
storage.
OR
❑ Per 15A NCAC 02T .0704(k) and the Water Balance Calculation Policy, submit a water balance that has been signed, sealed
and dated by a qualified professional and includes at a minimum:
❑ At least a two-year iteration of data computation that considers precipitation into and evaporation from all open atmosphere
storage impoundments, and uses a variable number of days per month.
❑ Precipitation based on the 801 percentile and a minimum of 30 years of observed data.
❑ Potential Evapotranspiration (PET) using the Thornthwaite method, or another approved methodology, using a minimum
of 30 years of observed temperature data.
❑ Soil drainage based on the geometric mean of the in -situ KSAT tests in the most restrictive horizon and a drainage coefficient
ranging from 4 to 10% (unless otherwise technically documented).
➢ Other factors that may restrict the hydraulic loading rate when determining a water balance include:
❑ Depth to the SHWT and groundwater lateral movement that may result in groundwater mounding.
❑ Nutrient limitations and seasonal application times to ensure high -rate infiltration does not exceed agronomic rates.
❑ Crop management activities resulting in cessation of infiltration for crop removal.
NOTE — High -Rate Infiltration Systems serving residential facilities shall have a minimum of 14 days of wet weather storage.
L Engineering Plans (All Application Packages):
® Per 15A NCAC 02T .0704(c)(1), submit standard size and 11 x 17-inch plan sets that have been signed, sealed and dated by a
North Carolina licensed Professional Engineer, and shall include at a minimum:
® Table of contents with each sheet numbered.
® A general location map with at least two geographic references and a vicinity map.
® A process and instrumentation diagram showing all flow, recycle/return, aeration, chemical, electrical and wasting paths.
® Plan and profile views of all treatment and storage units, including their piping, valves, and equipment (i.e., pumps,
blowers, mixers, diffusers, flow meters, etc.), as well as their dimensions and elevations.
® Details of all piping, valves, pumps, blowers, mixers, diffusers, recording devices, fencing, auxiliary power, etc.
❑ A hydraulic profile from the treatment plant headworks to the highest infiltration point.
❑ The high -rate infiltration area with an overlay of the suitable infiltration areas depicted in the Soil Evaluation.
❑ For non -basins, each nozzle/emitter and its wetted area influence and each infiltration zone labeled as it will be operated.
❑ For non -basins, locations within the infiltration system of air releases, drains, control valves, highest infiltration
nozzle/emitter, etc.
❑ For non -basin automated infiltration systems, provide the location and details of the precipitation/soil moisture sensor.
® Plans shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW ONLY, NOT
FOR CONSTRUCTION, etc.) that indicate they are anything other than final specifications. However, the plans may be
labeled with the phrase: FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION.
INSTRUCTIONS FOR FORM: HRIS 06-16 & SUPPORTING DOCUMENTATION Page 3 of 6

Specifications (All Application Packages):
® Per 15A NCAC 02T .0704(c)(2), submit specifications that have been signed, sealed and dated by a North Carolina licensed
Professional Engineer, and shall include at a minimum:
E Table of contents with each section/page numbered.
E Detailed specifications for each treatment/storage/infiltration unit, as well as all piping, valves, equipment (i.e., pumps,
blowers, mixers, diffusers, flow meters, etc.), nozzles/emitters, precipitation/soil moisture sensor (if applicable),
audible/visual high water alarms, liner material, etc.
E Site Work (i.e., earthwork, clearing, grubbing, excavation, trenching, backfilling, compacting, fencing, seeding, etc.)
E Materials (i.e., concrete, masonry, steel, painting, method of construction, etc.)
E Electrical (i.e., control panels, transfer switches, automatically activated standby power source, etc.)
E Means for ensuring quality and integrity of the finished product, including leakage, pressure and liner testing.
E Specifications shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW ONLY,
NOT FOR CONSTRUCTION, etc.) that indicate they are anything other than final specifications. However, the
specifications may be labeled with the phrase: FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION.
K. Engineering Calculations (All Application Packages):
® Per 15A NCAC 02T .0704(c)(3), submit engineering calculations that have been signed, sealed and dated by a North Carolina
licensed Professional Engineer, and shall include at a minimum:
❑ Hydraulic and pollutant loading calculations for each treatment unit demonstrating how the designed effluent
concentrations in Application Item V.I. were determined.
® Sizing criteria for each treatment unit and associated equipment (i.e., blowers, mixers, flow meters, pumps, etc.).
❑ Total and effective storage calculations for each storage unit.
❑ Friction/total dynamic head calculations and system curve analysis for each pump used.
E Manufacturer's information for all treatment units, pumps, blowers, mixers, diffusers, flow meters, etc.
❑ Flotation calculations for all treatment and storage units constructed partially or entirely below grade.
❑ For non -basins, a demonstration that the designed maximum precipitation and annual loading rates do not exceed the
recommended rates.
❑ For basins, a demonstration that the designed loading rate (GPD/fl2) does not exceed the recommended rate.
❑ A demonstration that the specified auxiliary power source is capable of powering all essential treatment units.
L. Site Map (All Application Packages):
❑ Per 15A NCAC 02T .0704(d), submit standard size and 11 x 17-inch site maps that have been signed, sealed and dated by a
North Carolina licensed Professional Engineer and/or Professional Land Surveyor, and shall include at a minimum:
❑ A scaled map of the site with topographic contour intervals not exceeding 10 feet or 25 percent of total site relief and
showing all facility -related structures and fences within the wastewater treatment, storage and infiltration areas.
❑ Soil mapping units shown on all infiltration sites.
❑ The location of all wells (including usage and construction details if available), streams (ephemeral, intermittent, and
perennial), springs, lakes, ponds, and other surface drainage features within 500 feet of all wastewater treatment, storage
and infiltration sites.
❑ Delineation of the compliance and review boundaries per 15A NCAC 02L .0107 and .0108.
❑ Setbacks as required by 15A NCAC 02T .0706.
❑ Site property boundaries within 500 feet of all wastewater treatment, storage and infiltration sites.
❑ All habitable residences or places of public assembly within 500 feet of all treatment, storage and infiltration sites.
NOTE — For clarity, multiple site maps of the facility with cut sheet annotations may be submitted.
M. Power Reliability Plan (All Application Packages):
❑ Per 15A NCAC 02T .0705(k), submit documentation of power reliability that shall consist of at a minimum:
❑ An automatically activated standby power supply onsite that is capable of powering all essential treatment units under
design conditions, OR
➢ Approval from the Director that the facility:
❑ Serves a private water distribution system that has automatic shut-off during power failures and has no elevated water
storage tanks,
❑ Has sufficient storage capacity that no potential for overflow exists, and
❑ Can tolerate septic wastewater due to prolonged detention.
INSTRUCTIONS FOR FORM: HRIS 06-16 & SUPPORTING DOCUMENTATION Page 4 of 6

N. Operation and Maintenance Plan (All Application Packages):
® Per 15A NCAC 02T .0707, submit an operation and maintenance (O&M) plan encompassing all wastewater treatment, storage
and infiltration systems that shall include at a minimum a description of:
® Operation of the wastewater treatment, storage and infiltration systems in sufficient detail to show what operations are
necessary for the system to function and by whom the functions are to be conducted.
❑ Anticipated maintenance of the wastewater treatment, storage and infiltration systems.
❑ Safety measures, including restriction of access to the site and equipment.
❑ Spill prevention provisions such as response to upsets and bypasses, including how to control, contain and remediate.
❑ Contact information for plant personnel, emergency responders and regulatory agencies.
NOTE — A final O&M Plan shall be submitted with the partial and/or final Engineering Certification required under 15A NCAC
02T .0116, however, a preliminary O&M Plan shall be submitted with each application package.
O. Residuals Management Plan (All Application Packages with new, expanding or replacement wastewater treatment systems):
❑ Per 15A NCAC 02T .0704(i) and .0708, submit a Residuals Management Plan that shall include at a minimum:
❑ A detailed explanation of how generated residuals (including trash, sediment and grit) will be collected, handled, processed,
stored, treated, and disposed.
❑ An evaluation of the treatment facility's residuals storage requirements based upon the maximum anticipated residuals
production rate and ability to remove residuals.
❑ A permit for residuals utilization or a written commitment to the Applicant from a Permittee of a Department approved
residuals disposal/utilization program that has adequate permitted capacity to accept the residuals or has submitted a
residuals/utilization program application.
❑ If oil/grease removal and collection are a designed unit process, submit an oil/grease disposal plan detailing how the
oil/grease will be collected, handled, processed, stored and disposed.
NOTE — Per 15A NCAC 02T .0705(n), a minimum of 30 days of residual storage shall be provided.
NOTE — Per 15A NCAC 02T .0704(i), a written commitment to the Applicant from a Permittee of a Department approved residuals
disposal/utilization program is not required at the time of this application, however, it shall be provided prior to operation of any
permitted facilities herein.
NOTE — If an on -site restaurant or other business with food preparation is contributing wastewater to this system, an oil/grease
disposal plan shall be submitted.
P. Additional Documentation:
➢ Certificate of Public Convenience and Necessity (All Application Packages for Privately -Owned Public Utilities):
❑ Per 15A NCAC 02T .0115(a)(1) and .0704(g), provide the Certificate of Public Convenience and Necessity from the North
Carolina Utilities Commission demonstrating the Applicant is authorized to hold the utility franchise for the area to be
served by the wastewater treatment and high -rate infiltration system, or
❑ Provide a letter from the North Carolina Utilities Commission's Water and Sewer Division Public Staff stating an
application for a franchise has been received and that the service area is contiguous to an existing franchised area or that
franchise approval is expected.
➢ Existing Permit (All Modification Packages):
® Submit the most recently issued existing permit.
❑ Provide a list of any items within the permit the Applicant would like the Division to address during the permit modification
(i.e., compliance schedules, permit description, monitoring, permit conditions, etc.).
➢ Final Environmental Document (All Application Packages using public monies or lands subject to the North Carolina
Environmental Policy Act under 15A NCAC 01 C .0100 to .0400):
❑ Per 15A NCAC 02T .0105(c)(4), submit one copy of the environmental assessment and three copies of the final
environmental document (i.e., Finding of No Significant Impact or Record of Decision).
❑ Include information on any mitigating factors from the Environmental Assessment that impact the design and/or
construction of the wastewater treatment and high -rate infiltration system.
➢ Floodway Regulation Compliance (All Application Packages where any portion of the wastewater treatment, storage and
infiltration system is located within the 100-year floodplain):
❑ Per 15A NCAC 02T .0105(c)(8), provide written documentation from all local governing entities that the facility is in
compliance with all local ordinances regarding construction or operation of wastewater treatment and/or disposal facilities
within the floodplain.
INSTRUCTIONS FOR FORM: HRIS 06-16 & SUPPORTING DOCUMENTATION Page 5 of 6

P. Additional Documentation (continued):
➢ Operational Agreements (All Application Packages for Home/Property Owners' Associations and Developers of lots to be
sold):
➢ Home/Property Owners' Associations
❑ Per 15A NCAC 02T .0115(c), submit the properly executed Operational Agreement (FORM: HOA).
❑ Per 15A NCAC 02T .0115(c), submit the proposed or approved Articles of Incorporation, Declarations and By-laws.
➢ Developers of lots to be sold
❑ Per 15A NCAC 02T .0115(b), submit the properly executed Operational Agreement (FORM: DEV).
➢ Threatened or Endangered Aquatic Species Documentation (All Application Packages):
❑ Per 15A NCAC 02T .0105(c)(10), submit documentation from the Department's Natural Heritage Program demonstrating
the presence or absence of threatened or endangered aquatic species within the boundary of the wastewater treatment,
storage and infiltration facilities.
❑ If the facility directly impacts such species, this documentation shall provide information on the need for permit conditions
pursuant to 15A NCAC 02B .0110.
➢ Wastewater Chemical Analysis (All Application Packages treating Industrial Waste):
❑ Per 15A NCAC 02T .0704(h), provide a complete Division certified laboratory chemical analysis of the effluent to be
infiltrated for the following parameters (For new facilities, an analysis from a similar facility's effluent is acceptable):
❑ Ammonia Nitrogen (NHs-N) ❑ Nitrate Nitrogen (NOs-N) ❑ Total Organic Carbon
❑ Calcium ❑ pH ❑ Total Phosphorus
❑ Chemical Oxygen Demand (COD) ❑ Phenol ❑ Total Trihalomethanes
❑ Chloride ❑ Sodium ❑ Total Volatile Organic Compounds
❑ Fecal Coliform ❑ Sodium Adsorption Ratio (SAR) ❑ Toxicity Test Parameters
❑ 5-day Biochemical Oxygen Demand (BOD5) ❑ Total Dissolved Solids
❑ Magnesium ❑ Total Kjeldahl Nitrogen (TKN)
THE COMPLETED APPLICATION AND SUPPORTING DOCUMENTATION SHALL BE SUBMITTED TO:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
WATER QUALITY PERMITTING SECTION
NON -DISCHARGE PERMITTING UNIT
By U.S. Postal Service:
1617 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1617
TELEPHONE NUMBER: [phone]
By Courier/Special Delivery:
512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27604
FAX NUMBER: [phone]
INSTRUCTIONS FOR FORM: HRIS 06-16 & SUPPORTING DOCUMENTATION Page 6 of 6

State of North Carolina
Department of Environmental Quality
DWR Division of Water Resources
15A NCAC 02T .0700 — HIGH -RATE INFILTRATION SYSTEMS
Division of Water Resources FORM: HRIS 06-16
L APPLICANT INFORMATION:
1. Applicant's name: County of Currituck
2. Applicant type: ❑ Individual ❑ Corporation ❑ General Partnership ❑ Privately -Owned Public Utility
❑ Federal ❑ State ❑ Municipal ® County
3. Signature authority's name: Ike McRee per 15A NCAC 02T .0106(b) Title: County Manager
4. Applicant's mailing address: 153 Courthouse Road, Suite 302
City: Currituck State: NC Zip: 27929-
5. Applicant's contact information:
Phone number: [phone] Email Address: Ike.McreekCurrituckCountyNC.gov
IL FACILITY INFORMATION:
1. Facility name: Ocean Sands WWTP
2. Facility status: Existing
3. Facility type: Major (> 10,000 GPD or> 300 disposal acres)
4. Facility's physical address: 741 Ocean Trail
City: Corolla State: NC Zip: 27927- County: Currituck
5. Wastewater Treatment Facility Coordinates (Decimal Degrees): Latitude: 36.322662' Longitude:-75.815341'
Datum: NAD83 Level of accuracy: Nearest 10 seconds Method of measurement: Digital or raw photo extraction
6. USGS Map Name: Mossey Island, NC
III. CONSULTANT INFORMATION:
1. Professional Engineer: Michael Strader Jr., P.E.
P.C.
Mailing address: P.O. Box 870
License Number: 037813 Firm: Quible & Associates,
City: Kitty Hawk State: NC Zip: 27949-
Phone number: [phone] Email Address: Mstrader quible.com
2. Soil Scientist: License Number: Firm:
Mailing address:
City:
State:
Zip: -
Phone number: (_)
=
Email Address:
3. Geologist:
License Number: Firm:
Mailing address:
City:
State:
Zip: -
Phone number: (_)
=
Email Address:
4. Agronomist:
Firm:
Mailing address:
City:
State:
Zip: -
Phone number: (_)
=
Email Address:
FORM: HRIS 06-16 Page 1 of 13

IV. GENERAL REQUIREMENTS — 15A NCAC 02T .0100:
1. Application type: ❑ New ❑ Major Modification ® Minor Modification
If a modification, provide the existing permit number: WQ0000185 and most recent issuance date: August 4, 2020
2. Application fee: $0 - Standard - Minor Modification
3. Does this project utilize public monies or lands? ® Yes or ❑ No
If yes, was an Environmental Assessment required under 15A NCAC QIC? ❑ Yes or ® No
If yes, which final environmental document is submitted? ❑ Finding of No Significant Impact or ❑ Record of Decision
Briefly describe any mitigating factors from the Environmental Assessment that may impact this facility:
4. What is the status of the following permits/certifications applicable to the subject facility?
Permit/Certification
Date
Submitted
Date
Approved
Permit/Certification
Number
Agency Reviewer
Collection System (Q > 200,000 GPD)
Dam Safety
Erosion & Sedimentation Control Plan
Nationwide 12 / Section 404
Pretreatment
Sewer System
Stormwater Management Plan
Wetlands 401
Other:
5. What is the wastewater type? ® Domestic or Industrial (See 15A NCAC 02T .0103(20))
Is there a Pretreatment Program in effect? ❑ Yes or ❑ No
Has a wastewater chemical analysis been submitted'? ❑ Yes or ❑ No
6. Wastewater flow: 600,000 GPD
Limited by: ® Treatment, ❑ Storage, ❑ Field/Basin Hydraulics, ❑ Field Agronomics or ❑ Groundwater Mounding
7. Explain how the wastewater flow was determined: ❑ 15A NCAC 02T .0114 or ❑ Representative Data
Has a flow reduction been approved under 15A NCAC 02T .0114(f)? ❑ Yes or ❑ No
Establishment Type
Daily Design Flow'
No. of Units
Flow
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
Total
GPD
a See 15A NCAC 02T .0114(b), (d), (e)(1) and (e)(2) for caveats to wastewater design flow rates (i.e., minimum flow per
dwelling; proposed unknown non-residential development uses; public access facilities located near high public use areas;
and residential property located south or east of the Atlantic Intracoastal Waterway to be used as vacation rentals as defined
in G.S. 42A-4).
FORM: HRIS 06-16 Page 2 of 13

IV. GENERAL REQUIREMENTS — 15A NCAC 02T .0100 (continued):
8. What is the nearest 100-year flood elevation to the facility? feet mean sea level. Source:
Are any treatment, storage or infiltration facilities located within the 100-year flood plain? ❑ Yes or ❑ No
I� If yes, which facilities are affected and what measures are being taken to protect them against flooding?
If yes, has the Applicant submitted written documentation of compliance with § 143 Article 21 Part 6? ❑ Yes or ❑ No
9. Has the Applicant provided documentation of the presence or absence of threatened or endangered aquatic species utilizing
information provided by the Department's Natural Heritage Program? ❑ Yes or ❑ No
10. Does the facility have a proposed or existing groundwater monitoring well network? ❑ Yes or ❑ No
If no, provide an explanation as to why a groundwater monitoring well network is not proposed:
If yes, complete the following table (NOTE — This table may be expanded for additional wells):
Well Name
Status
Latitude a
Longitude a
Gradient
Location
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
Select
0-
Select
Select
a Provide the following latitude and longitude coordinate determination information:
Datum: Select Level of accuracy: Select Method of measurement: Select
11. If the Applicant is a Privately -Owned Public Utility, has a Certificate of Public Convenience and Necessity been submitted?
❑ Yes, ❑No or ®N/A
12. If the Applicant is a Developer of lots to be sold, has a Developer's Operational Agreement (FORM: DEV) been submitted?
❑ Yes, ❑No or ®N/A
13. If the Applicant is a Home/Property Owners' Association, has an Association Operational Agreement (FORM: HOA) been
submitted? ❑ Yes, ❑No or ®N/A
14. Demonstration of historical consideration for permit approval — 15A NCAC 02T .0120:
Has the Applicant or any parent, subsidiary or other affiliate exhibited the following?
a. Has been convicted of environmental crimes under Federal law or G.S. 143-215.613? ❑ Yes or ® No
b. Has previously abandoned a wastewater treatment facility without properly closing that facility? ❑ Yes or ® No
c. Has unpaid civil penalty where all appeals have been abandoned or exhausted? ❑ Yes or ® No
d. Is non -compliant with an existing non -discharge permit, settlement agreement or order? ❑ Yes or ® No
e. Has unpaid annual fees in accordance with 15A NCAC 02T .0105(e)(2)? ❑ Yes or ® No
FORM: HRIS 06-16 Page 3 of 13

V. WASTEWATER TREATMENT FACILITY DESIGN CRITERIA —15A NCAC 02T .0705:
1. For the following parameters, provide the estimated influent concentrations and designed effluent concentrations as
determined in the Engineering Calculations, and utilized in the Agronomic Evaluation and Groundwater Modeling (if
applicable):
Parameter
Estimated Influent Concentration
Designed Effluent Concentration
(monthly average)
Ammonia Nitrogen (NH3-N)
mg/L
mg/L
Biochemical Oxygen Demand (BOD5)
mg/L
mg/L
Fecal Coliforms
per 100 mL
Nitrate Nitrogen (NO3-N)
mg/L
mg/L
Nitrite Nitrogen (NO2-N)
mg/L
mg/L
Total Kjeldahl Nitrogen
mg/L
Total Nitrogen
mg/L
mg/L
Total Phosphorus
mg/L
mg/L
Total Suspended Solids (TSS)
mg/L
mg/L
2. Is flow equalization of at least 25% of the average daily flow provided? ❑ Yes or ❑ No
3. Does the treatment facility include any bypass or overflow lines? ❑ Yes or ❑ No
If yes, describe what treatment units are bypassed, why this is necessary, and where the bypass discharges:
4. Are multiple pumps provided wherever pumps are used? ❑ Yes or ❑ No
If no, how does the Applicant intend on complying with 15A NCAC 02T .0705(i)?
5. Check the appropriate box describing how power reliability will be provided in accordance with 15A NCAC 02T .0705(k):
❑ Automatically activated standby power supply onsite capable of powering all essential treatment units; or
❑ Approval from the Director that the facility:
➢ Has a private water supply that automatically shuts off during power failures and does not contain elevated water
storage tanks;
➢ Has sufficient storage capacity that no potential for overflow exists; and
➢ Can tolerate septic wastewater due to prolonged detention.
6. If the wastewater treatment system is located within the 100-year flood plain, are there water -tight seals on all treatment units
or a minimum of two feet protection from the 100-year flood plain elevation? ❑ Yes, ❑ No or ❑ N/A
7. In accordance with 15A NCAC 02T .0705(n), how many days of residuals storage are provided?
8. How does the Applicant propose to prohibit public access to the wastewater treatment and storage facilities?
9. If an influent pump station is part of the proposed facility (i.e., within the wastewater treatment plant boundary), does the
influent pump station meet the design criteria in 15A NCAC 02T .0305(h)? ❑ Yes, ❑ No, ❑ N/A — To be permitted
separately, or ❑ N/A — Gravity fed
10. If septic tanks are part of the wastewater treatment facility, do the septic tanks adhere to the standards in 15A NCAC 18A
.1900? ❑ Yes, ❑ No or ❑ N/A
FORM: HRIS 06-16 Page 4 of 13

V. WASTEWATER TREATMENT FACILITY DESIGN CRITERIA —15A NCAC 02T .0705 (continued):
11. Provide the requested treatment unit and mechanical equipment information:
a. PRELIMINARY / PRIMARY TREATMENT (i.e., physical removal operations and flow equalization):
Treatment Unit
No. of
Units
Manufacturer or
Material
Dimensions (ft) /
Spacings in
Volume
(gallons)
Plan Sheet
Reference
Specification
Reference
Select
Select
Select
Select
Select
b. SECONDARY / TERTIARY TREATMENT (i.e., biological and chemical processes to remove organics and nutrients)
Treatment Unit
No. of
Units
Manufacturer or
Material
Dimensions (ft)
Volume
(gallons)
Plan Sheet
Reference
Specification
Reference
Select
Select
Select
Select
Select
Select
Select
Select
c. DISINFECTION
No. of
Manufacturer or
Volume
Plan Sheet
Specification
Treatment Unit
Dimensions (ft)
Units
Material
(gallons)
Reference
Reference
Select
Select
➢ If chlorination is the proposed method of disinfection, specify detention time provided: minutes (NOTE — 30
minutes minimum required), and indicate what treatment unit chlorine contact occurs:
➢ If ultraviolet (UV) light is the proposed method of disinfection, specify the number of banks: , number of lamps
per bank: and maximum disinfection capacity: GPM.
d. RESIDUAL TREATMENT
No. of
Manufacturer or
Volume
Plan Sheet
Specification
Treatment Unit
Dimensions (ft)
Units
Material
(gallons)
Reference
Reference
Select
Select
FORM: HRIS 06-16 Page 5 of 13

V. WASTEWATER TREATMENT FACILITY DESIGN CRITERIA —15A NCAC 02T .0705 (continued):
e. PUMPS
Location
No. of
Pumps
Purpose
Manufacturer /
Type
Capacity
Plan Sheet
I Reference
Specification
Reference
GPM
I TDH
f. BLOWERS
Location
No. of
Blowers
Units Served
Manufacturer /
Type
Capacity
(CF
Plan Sheet
Reference
Specification
Reference
Sludge Holding
Tanks
2
4
Roots Model 45
URAI orequal
215
1, 2, 3, 4 and
5 of 10
Blower
g. MIXERS
Location
No. of
Mixers
Units Served
Manufacturer /
T e
Power
(h)
Plan Sheet
Reference
Specification
Reference
h. RECORDING DEVICES & RELIABILITY
Device
No. of
Units
Location
Manufacturer
Maximum
Capacity
Plan Sheet
Reference
Specification
Reference
Select
Select
Select
Select
i. EFFLUENT PUMP / DOSING TANK (IF APPLICABLE):
FORM: HRIS 06-16 Page 6 of 13

Plan Sheet
Reference
Specification
Reference
Internal dimensions (L x W x H or (p x H)
ft
ft
ft
Total volume
ft3
gallons
Dosing volume
ft3
gallons
Audible & visual alarms
Equipment to prevent infiltration during rain
events if applicable)
FORM: HRIS 06-16 Page 7 of 13

VI. EARTHEN STORAGE IMPOUNDMENT DESIGN CRITERIA — 15A NCAC 02T .0705:
IF MORE THAN ONE IMPOUNDMENT, PROVIDE ADDITIONAL COPIES OF THIS PAGE AS NECESSARY.
1. What is the earthen impoundment type? Select
2. Storage Impoundment Coordinates (Decimal Degrees): Latitude: Longitude: - °
Datum: Select Level of accuracy: Select Method of measurement: Select
3. Do any impoundments include a discharge point (pipe, spillway, etc)? ❑ Yes or ❑ No
4. Are subsurface drains present beneath or around the impoundment to control groundwater elevation? ❑ Yes or ❑ No
5. Is the impoundment designed to receive surface runoff? ❑ Yes or ❑ No
If yes, what is the drainage area? W, and was this runoff incorporated into the water balance? ❑ Yes or ❑ No
6. If a liner is present, how will it be protected from wind driven wave action?:
7. Will the earthen impoundment water be placed directly into or in contact with GA classified groundwater? ❑ Yes or ❑ No
If yes, has the Applicant provided predictive calculations or modeling demonstrating that such placement will not result in a
contravention of GA groundwater standards? ❑ Yes or ❑ No
8. What is the depth to bedrock from the earthen impoundment bottom elevation? ft
If the depth to bedrock is less than four feet, has the Applicant provided a liner with a hydraulic conductivity no greater than
I x 10-' cm/s? ❑ Yes, or ❑ N/A
Has the Applicant provided predictive calculations or modeling demonstrating that surface
water or groundwater standards will not be contravened? ❑ Yes or ❑ No
If the earthen impoundment is excavated into bedrock, has the Applicant provided predictive calculations or modeling
demonstrating that surface water or groundwater standards will not be contravened? ❑ Yes, ❑ No or ❑ N/A
9. If the earthen impoundment is lined and the mean seasonal high water table is higher than the impoundment bottom
elevation, how will the liner be protected (e.g., bubbling, groundwater infiltration, etc.)?
10. If applicable, provide the specification page references for the liner installation and testing requirements:
11. If the earthen impoundment is located within the 100-year flood plain, has a minimum of two feet of protection (i.e., top of
embankment elevation to 100-year flood plain elevation) been provided? ❑ Yes or ❑ No
12. Provide the requested earthen impoundment design elements and dimensions:
Earthen Impoundment Design Elements11
Earthen Impoundment Dimensions
Liner type:
❑ Clay
❑ Synthetic
Top of embankment elevation:
ft
❑ Other
I ❑ Unlined
Liner hydraulic conductivity:
x cm/s
Freeboard elevation:
ft
Hazard class:
Select
Toe of slope elevation:
ft
Designed freeboard:
ft
Impoundment bottom elevation:
ft
Total volume:
ft3
gallons
Mean seasonal high water table depth:
ft
Effective volume:
ft3
gallons
Embankment slope:
Effective storage time:
days
Top of dam water surface area:
ft2
Plan Sheet Reference:
Freeboard elevation water surface area:
ft2
Specification Section:
Bottom of impoundment surface area:
ft2
NOTE — The effective volume shall be the volume between the two foot freeboard elevation and the: (1) pump intake pipe
elevation; (2) impoundment bottom elevation or (3) mean seasonal high water table, whichever is closest to the two foot
freeboard elevation.
FORM: HRIS 06-16 Page 8 of 13

VIL INFILTRATION SYSTEM DESIGN CRITERIA — 15A NCAC 02T .0705:
1. Provide the minimum depth to the seasonal high water table within the infiltration area:
NOTE — The vertical separation between the seasonal high water table and the ground surface shall be at least one foot.
2. Are there any artificial drainage or water movement structures (e.g., surface water or groundwater) within 200 feet of the
infiltration area? ❑ Yes or ❑ No
If yes, were these structures addressed in the Soil Evaluation and/or Hydrogeologic Report, and are these structures to be
maintained or modified?
3. Soil Evaluation recommended loading rates (NOTE — This table may be expanded for additional soil series):
Soil Series
Basins/Fields
within Soil
Series
Recommended
Loading Rate
(in/hr)
Recommended
Loading Rate
(in/ r)
Recommended
Loading Rate
(GPD/ft2)
Annual /
Seasonal
Loading
If Seasonal, list
appropriate
months
Select
Select
Select
Select
Select
Select
4. Are the designed loading rates less than or equal to Soil Evaluation recommended loading rates`? ❑ Yes or ❑ No
If no, how does the Applicant intend on complying with 15A NCAC 02T .0705(m)?
5. How does the Applicant propose to prohibit public access to the infiltration facilities?
6. Has the infiltration system been equipped with a flow meter to accurately determine the volume of effluent applied to each
basin/field as listed in VIL8.? ❑ Yes or ❑ No
If no, how does the Applicant intend on determining the amount of effluent applied to each basin/field?
7. For non -basins, provide the required cover crop information and demonstrate the effluent will be applied at or below
agronomic rates:
Cover Crop
FSoil Series
% Slope
Nitrogen Uptake Rate
(lbs/ac r)
Phosphorus Uptake
Rate (lbs/ac r)
a. Specify where the nitrogen and phosphorus uptake rates for each cover crop were obtained:
b. Proposed nitrogen mineralization rate:
c. Proposed nitrogen volatilization rate:
d. Minimum infiltration area from the Agronomist Evaluation's nitrogen balance: ft2
e. Minimum infiltration area from the Agronomist Evaluation's phosphorus balance: ft2
f. Minimum infiltration area from the water balance: ft2
FORM: HRIS 06-16 Page 9 of 13

VIL INFILTRATION SYSTEM DESIGN CRITERIA — 15A NCAC 02T .0705 (continued):
8. Basin/Field Information (NOTE — This table may be expanded for additional fields):
Basin/
Field
Area
(acres)
Dominant
Soil Series
Designed
Loading
Rate
in/hr
Designed
Loading
Rate
in/ r
Designed
Loading
Rate
GPD/ft2
Latitude a
Longitude a
at erbody
Strreameam
Index No. n
Classification
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Total
a Provide the following latitude and longitude coordinate determination information:
Datum: Select Level of accuracy: Select Method of measurement: Select
b For assistance determining the waterbody stream index number and its associated classification, instructions may be
downloaded at: http://deg.nc.gov/about/divisions/water-resources/planning/classification-standards/classifications
9. High -Rate Infiltration System design criteria:
a. Infiltration Fields:
Spray Infiltration Design Elements
Drip Infiltration Design Elements
Nozzle wetted diameter:
ft
Emitter wetted area:
ft,
Nozzle wetted area:
ft,
Distance between laterals:
ft
Nozzle capacity:
GPM
Distance between emitters:
ft
Nozzle manufacturer/model:
/
Emitter capacity:
GPH
Elevation of highest nozzle:
ft
Emitter manufacturer/model:
/
Specification Section:
Elevation of highest emitter:
ft
Specification Section:
FORM: HRIS 06-16 Page 10 of 13

VIL INFILTRATION SYSTEM DESIGN CRITERIA — 15A NCAC 02T .0705 (continued):
b. Infiltration Basins:
IF MORE THAN TWO BASINS, PROVIDE ADDITIONAL COPIES OF THIS PAGE AS NECESSARY.
Infiltration Basin Design Elements
Infiltration Basin Dimensions
Basin Name:
Top of embankment elevation:
ft
Hazard class:
Select
Freeboard elevation:
ft
Designed freeboard:
ft
Toe of slope elevation:
ft
Total volume:
ft3
Impoundment bottom elevation:
ft
Infiltrative surface area:
ft2
Mean seasonal high water table depth:
ft
Daily infiltrative capacity:
GPD
Embankment slope:
Plan Sheet Reference:
Top of dam water surface area:
ft2
Specification Section:
Freeboard elevation water surface area:
ft2
Bottom of impoundment surface area:
ft2
i. Does this basin include a discharge point (pipe, spillway, etc)? ❑ Yes or ❑ No
ii. Are subsurface drains present around the impoundment to control groundwater elevation? ❑ Yes or ❑ No
iii. Is the basin designed to receive surface runoff? ❑ Yes or ❑ No
If yes, what is the drainage area? ft2, and was this runoff incorporated into the loading rate? ❑ Yes or ❑ No
iv. Will the effluent be placed directly into or in contact with GA classified groundwater? ❑ Yes or ❑ No
If yes, has the Applicant provided predictive calculations or modeling demonstrating that such placement will not
result in a contravention of GA groundwater standards? ❑ Yes or ❑ No
v. If the infiltration basin is located within the 100-year flood plain, has a minimum of two feet of protection (i.e., top of
embankment elevation to 100-year flood plain elevation) been provided? ❑ Yes or ❑ No
Infiltration Basin Design Elements
Infiltration Basin Dimensions
Basin Name:
Top of embankment elevation:
ft
Hazard class:
Select
Freeboard elevation:
ft
Designed freeboard:
ft
Toe of slope elevation:
ft
Total volume:
ft,
Impoundment bottom elevation:
ft
Infiltrative surface area:
ft2
Mean seasonal high water table depth:
ft
Daily infiltrative capacity:
GPD
Embankment slope:
Plan Sheet Reference:
Top of dam water surface area:
ft2
Specification Section:
Freeboard elevation water surface area:
ft2
Bottom of impoundment surface area:
ft2
i. Does this basin include a discharge point (pipe, spillway, etc)? ❑ Yes or ❑ No
ii. Are subsurface drains present around the impoundment to control groundwater elevation? ❑ Yes or ❑ No
iii. Is the basin designed to receive surface runoff? ❑ Yes or ❑ No
If yes, what is the drainage area? ft2, and was this runoff incorporated into the loading rate? ❑ Yes or ❑ No
iv. Will the effluent be placed directly into or in contact with GA classified groundwater? ❑ Yes or ❑ No
If yes, has the Applicant provided predictive calculations or modeling demonstrating that such placement will not
result in a contravention of GA groundwater standards? ❑ Yes or ❑ No
v. If the infiltration basin is located within the 100-year flood plain, has a minimum of two feet of protection (i.e., top of
embankment elevation to 100-year flood plain elevation) been provided? ❑ Yes or ❑ No
FORM: HRIS 06-16 Page 11 of 13

VIIL SETBACKS —15A NCAC 02T .0706:
1. Does the project comply with all setbacks found in the river basin rules (15A NCAC 02B .0200)? ❑ Yes or ❑ No
If no, list non -compliant setbacks:
2. Have any setback waivers been obtained in order to comply with 15A NCAC 02T .706(a) and .0706(d)? ❑ Yes or ❑ No
If yes, have these waivers been written, notarized and signed by all parties involved and recorded with the County Register of
Deeds? ❑ Yes or ❑ No
3. Provide the minimum field observed distances (ft) for each setback parameter to the infiltration system and treatment/storage
units (NOTE — Distances greater than 500 feet may be marked N/A):
Setback Parameter
Infiltration
System
Treatment /
�Storage Unit
Any habitable residence or place of assembly under separate ownership or not to be
maintained as part of the project site
Any habitable residence or place of assembly owned by the Permittee to be maintained as
art of the project site
Any private or public water supply source
Surface waters (streams — intermittent and perennial, perennial waterbodies, and wetlands)
Groundwater lowering ditches (where the bottom of the ditch intersects the SHWT)
Subsurface groundwater lowering drainage systems
Surface water diversions (ephemeral streams, waterways, ditches)
Any well with exception of monitoring wells
Any property line
Top of slope of embankments or cuts of two feet or more in vertical height
Any water line from a disposal system
Any swimming pool
Public right of way
Nitrification field
Any building foundation or basement
Impounded public water supplies
Public shallow groundwater supply (less than 50 feet deep)
4. Does the Applicant intend on complying with either 15A NCAC 02T .0706(b) or (c)? ❑ Yes or ❑ No
If yes, what are the designed Total Nitrogen and Total Phosphorus effluent concentrations? TN: _ mg/L TP: _ mg/L
5. Does the Applicant intend on complying with the High -Rate Policy issued October 27, 2006? ❑ Yes or ❑ No
If yes, verify the following information:
✓ Are the most stringent effluent standards in both 15A NCAC 02T .0705(b) and 15A NCAC 02U .0301(b) met?
❑Yes or❑No
✓ Is duality provided for all treatment units per 15A NCAC 02U .0402(c)? ❑ Yes or ❑ No
✓ Continuous online monitoring and recording of effluent for turbidity? ❑ Yes or ❑ No
✓ A lined 5-day upset pond is provided? ❑ Yes or ❑ No
✓ The 5-day upset pond has restricted access? ❑ Yes or ❑ No
✓ A certified operator of a grade equal or greater than the facility classification is on call 24 hrs/day? ❑ Yes or ❑ No
FORM: HRIS 06-16 Page 12 of 13

IX. COASTAL WASTE TREATMENT DISPOSAL REQUIREMENTS —15A NCAC 0211.0400:
1. Is this facility located in a Coastal Area as defined per 15A NCAC 02H .0403? ❑ Yes or ❑ No
For assistance determining if the facility is located within the Coastal Area, a reference map may be downloaded at: Coastal
Areas Boundary.
2. Is this an Interim Treatment and Disposal Facility per 15A NCAC 02H .0404(g)? ❑ Yes or ❑ No
NOTE — Interim facilities do not include County and Municipal area -wide collection and treatment systems.
IF ANSWERED YES TO ITEMS IX.1. AND IX.2., THEN COMPLETE ITEMS IX.3. THROUGH IX.16.
3. Is equalization of at least 25% of the average daily flow provided? ❑ Yes or ❑ No
4. How will noise and odor be controlled?
5. Is an automatically activated standby power source provided? ❑ Yes or ❑ No
6. Are all essential treatment units provided in duplicate? ❑ Yes or ❑ No
NOTE — Per 15A NCAC 02T .010306), essential treatment units are defined as any unit associated with the wastewater
treatment process whose loss would likely render the facility incapable of meeting the required performance criteria, including
aeration units or other main treatment units, clarification equipment, filters, disinfection equipment, pumps and blowers.
7. Are the disposal units (i.e., infiltration basins/fields) provided in duplicate? ❑ Yes or ❑ No
8. Is there an impounded public surface water supply within 500 feet of the infiltration area? ❑ Yes or ❑ No
9. Is there a public shallow groundwater supply (less than 50 feet deep) within 500 feet of the infiltration area? ❑ Yes or ❑ No
10. Is there a private groundwater supply within 100 feet of the infiltration area? ❑ Yes or ❑ No
11. Are there any SA classified waters within 100 feet of the infiltration area? ❑ Yes or ❑ No
12. Are there any non -SA classified waters within 50 feet of the infiltration area? ❑ Yes or ❑ No
13. Are there any surface water diversions (i.e., drainage ditches) within 25 feet of the infiltration area? ❑ Yes or ❑ No
14. Per the requirements in 15A NCAC 02H .0404(g)(7), how much green area is provided? ft2
15. Is the green area clearly delineated on the plans? ❑ Yes or ❑ No
16. Is the spray infiltration wetted area within 200 feet of any adjoining properties? ❑ Yes, ❑ No or ❑ N/A
X. GROUNDWATER LOWERING SYSTEM DESIGN:
1. Does this project utilize a groundwater lowering system? ❑ Yes or ❑ No (If yes, complete Items X.2. through X.4.)
2. Is the groundwater lowering system: ❑ mechanically lowered (i.e., pumped) or ❑ gravity fed?
3. Where does the groundwater lowering drainage system discharge?
If the system mechanically lowers groundwater and discharges directly or indirectly (i.e., pond overflow) to surface waters,
wetlands and/or stormwater structures, provide the date the Applicant obtained written confirmation from the Water Quality
Regional Operations Section that operation of the groundwater lowering drainage system will not adversely affect surface
waters of the State. Submitted: & Received:
4. Groundwater lowering system design criteria:
Groundwater Lowering System Design
Pipe diameter:
in
Discharge rate:
GPD
Pipe material:
Method to measure discharge rate:
Pipe depth:
ft
Number of pumps:
Pipe length:
ft
Pump capacity:
GPM
TDH
Pipe slope (gravity -fed):
%
Plan Sheet Reference:
Trench backfill material:
Specification Section:
FORM: HRIS 06-16 Page 13 of 13

Professional Engineer's Certification:
I Michael W. Strader, Jr., P.E. attest that this application for
(Professional Engineer's name from Application Item II1.1.)
Ocean Sands Wastewater Treatment Plant
(Facility name from Application Item II.I.)
has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans, specifications, engineering
calculations, and all other supporting documentation to the best of my knowledge. I further attest that to the best of my knowledge the
proposed design has been prepared in accordance with this application package and its instructions, as well as all applicable regulations
and statutes. Although other professionals may have developed certain portions of this submittal package, inclusion of these materials
under my signature and seal signifies that I have reviewed this material and have judged it to be consistent with the proposed design.
NOTE — In accordance with General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement,
representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may include a fine not to
exceed $10,000, as well as civil penalties up to $25,000 per violation.
North Carolina Professional Engineer's seal, signature, and date:
A0'
. or SEAL 7r
Applicant's Certific on per 15 NC C 02T .0106(b):
I, Ike McRee, Currituck County Manager attest that this application for
(Signature Authority's name & title from Application Item I.3.)
Ocean Sands Wastewater Treatment Plant
(Facility name from Application Item II.1.)
has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that any discharge of wastewater
from this non -discharge system to surface waters or the land will result in an immediate enforcement action that may include civil
penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water Resources should a condition
of this permit be violated. I also understand that if all required parts of this application package are not completed and that if all required
supporting information and attachments are not included, this application package will be returned to me as incomplete. I further certify
that the Applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater facility without
proper closure, does not have an outstanding civil penalty where all appeals have been exhausted or abandoned, are compliant with any
active compliance schedule, and do not have any overdue annual fees per 15A NCAC 02T .0105(e).
NOTE — In accordan 3 General Statutes 143-215.6A and 143-215.613, any person who knowingly makes any false statement,
representation, o ifi ti in any a ication package shall be guilty of a Class 2 misdemeanor, which may include a fine not to
exceed $10,0 as wewac GrIvil pe es to $25,000 r 'olation.
Signature: Date: ��
FORM: HRIS 06-16 Page 14 of 13

LEGEND NOTES r------------- ------
�— — —� 1. OWNER/APPLICANT: 04 OSEER CEAN TRAIL
LINT I i
EXISTING CONCRETE
L COROLLA NC, 27927 I i
,..4 2. ENGINEER: QUIBLE & ASSOCIATES, P.C.
PROPOSED DEMOLITION P.O. DRAWER 870
KITTY HAWK, NC
TEL: [phone] I i
3. PROPERTY INFO: PIN: 9935-81-0545
PID: 01160000040000 I — — — — — — —
4. EXISTING IMPROVEMENTS SHOWN PER HEADWORKS PLAN BY
ANLAUF ENGINEERING, PLLC 11-01-14.
5. PROJECT SCOPE: THIS PLAN PROPOSES THE REPLACEMENT OF THE EXISTING
BROKEN PRIMARY GRINDER AND SCREEN WITH A NEW SELF CLEANING
AUTOMATIC 3MM FINE MECHANICAL BAR SCREEN WITH WASH PRESS AND CONTROL PANEL ONLY. I I 25 G
NO OTHER MODIFICATIONS ARE PROPOSED TO THE EXISTING WASTEWATER TREATMENT FACILITY I I 'KARP 5ELF DUMPIN5 i
HOPPER
I i i i
I I I i
I I
EX. GONG.
I I I
I i �
EX. D15G✓�T
CONTRACTOR SHALL COMPLETELY REMOVE i
AND DISPOSE OF EXISTING GRINDER, SPIRAL LIFT FINE i
63 HP R 460 V, 3 PHA5E I SCREEN, CONTROL PANEL AND ASSOCIATED COMPONENTS
FOR 18 24"WIDE CHANIEL TO THE EXTENT NECESSARY TO INSTALL NEW PRIMARY
CONTRACTOR SHALL FIELD VERIFY . 26-32•LIOWD DEPTH I SCREEN, CONTROL PANEL AND ASSOCIATED COMPONENTS
LOCATION, MATERIAL AND SIZE FRANKLIN MILLER TASKMA5TER TM/4032 ORI I I i
OF EXISTING IMPROVEMENTS PROPOSED REMOVAL OF
FRANKLIN MILLER MODEL SLT16153 L
r SPIRAL LIFT FINE SCREEN ;
- — — ------ — — --- — — — — — L
- ------�
-'PROPOSED - - REMOVA- - L -OF - - - - - - - r i`'~
EX.. B"WALL GRINDER PUMP
�— ---------------------- — ---�
., .... : e _.. f ,. ,. � .� 1. . , .
„ f r
Ex8 17LUTL.E EaC FRANKLIN MlLLB2 MODEL 5LTI6153 ,, '
r.. K < ~ EJC 24 W1DTH : , F., A �
_. i r ` ,
FLOW « ;;' .t :` y r` Fru
IRON PIPING 5PlRAL LIFT FlhlE SGRffN >,
MAIN CHANNEL
I
L---------------------------------------------------------------------�
EX8"WALL EJCGONG. ------ ---— — — — — — — — — — — —
------------'-------- — —
I r — — — — EX. 5TA/NLE55 5T�L TR,45H � � � T� � � � �
RACK IN B11PA55 G1,14NI L
EX. 8'L7lGTILE
{NI TN P OPENIN5
FLOW EX. 24W1DTtl
IRON PIPING BYPA55 CHANNEL EX15TlN6 FULLY PERFORATED
I
— 5TA1NL E55 STffL TROY
FOR DRYIN6 50LlD5 MAMJALLY
RAKED FROM TRASH RACK
I-LLI-LL .__. ._ _--------- _ -- ------
--------------------------- '' �` •� c� ��c — ---� —:— --I FLOW ( (
I I
L— — FJC — - — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — i
WALKWAY GRATING NOT I i
5HOWN FOR CLARITY I i
31.2'
I I
GRAPHIC SCALE
i i I
i • I i `i
( IN FEET )
1 inch = 2' fi.
WASTEWATER NOTES.
THE WASTEWATER TREATMENT SYSTEM TO BE INSTALLED AT THIS SITE MUST MEET THE FOLLOWING CRITERIA:
1. WASTEWATER EFFLUENT CRITERIA MONTHLY AVERAGE
FIVE DAY BIOCHEMICAL OXYGEN DEMAND (BOD5) 510 MG/L
AMONIA—NITROGEN (NH3—N) S4 MG/L
TOTAL SUSPENDED SOLIDS (TSS) 25:15 MGfL
NITRATE —NITROGEN (NO3—N) 510 MGfL
FECAL COLIFORMS S14 PER 100 ML
TOTAL NITROGEN (TN) 57 MGfL
TOTAL PHOSPHORUS (TP) S3 MG/L
2, WASTEWATER TREATMENT SYSTEM MUST BE A SUBMERGED ATTACHED GROWTH BIO—REACTOR (SAGB) SYSTEM.
3. THE MANUFACTURER OF THE WASTEWATER TREATMENT SYSTEM COMPONENTS MUST OFFER A WASTEWATER
TREATMENT SYSTEM PROCESS GUARANTEE TO MEET OR EXCEED THE STANDARDS LISTED ABOVE.
DEMOLITION NOTES:
1. CONTRACTOR SHALL LOCATE EXISTING UNDERGROUND SERVICES — TO INCLUDE BUT NOT LIMITED TO ELECTRIC,
CABLE, TELEPHONE, GAS, SANITARY SEWER AND WATER — AND SHALL COORDINATE PROPER PROTECTION
AND/OR RELOCATE WITH APPROPRIATE OWNER/UTILITY COMPANY.
2. CONTRACTOR SHALL WALK THE SITE AND BE FAMILIAR WITH THE SCOPE OF DEMOLITION REQUIRED. ALL
DEMOLITION WORK REQUIRED TO CONSTRUCT NEW IMPROVEMENTS WILL BE PERFORMED BY THE CONTRACTOR AND
BE UNCLASSIFIED EXCAVATION.
3. DEMOLITION SHALL INCLUDE BUT IS NOT LIMITED TO THE EXCAVATION, HAULING AND OFFSITE DISPOSAL OF
CONCRETE CURBS AND GUTTERS, BITUMINOUS CONCRETE PAVEMENTS AND ALL MATERIALS OR VEGETATION
CLEARED AND STRIPPED TO THE EXTENT NECESSARY FOR THE INSTALLATION OF NEW IMPROVEMENTS AND WITHIN
THE LIMITS OF CLEARING AND GRADING. COORDINATE WITH APPROPRIATE DRAWINGS.
4. THE CONTRACTOR SHALL PROTECT ALL PROPERTY AND STRUCTURES AND UTILITIES ON THE PROPERTY NOT TO
BE DEMOLISHED. DAMAGE TO THE PROPERTY DUE TO THE CONTRACTOR'S ACTIVITIES SHALL BE REPLACED IN
KIND BY THE CONTRACTOR AT NO COST TO THE OWNER.
5. ALL EXISTING IMPROVEMENTS INDICATED OR REQUIRED TO BE DEMOLISHED SHALL INCLUDE REMOVAL FROM
PROJECT AREA.
6. EXISTING PAVEMENT, CURB AND GUTTER, LIGHTS, FENCES, TREE/VEGETATION AND UTILITIES NOT INTENDED FOR
DEMOLITION SHALL BE MAINTAINED, PROTECTED, AND UNDISTURBED DURING DEMOLITION. CONTRACTOR SHALL
COORDINATE THE REMOVAL OF BITUMINOUS CONCRETE PAVEMENTS AND CURB AND GUTTER WITH THE SITE PLAN.
7. SMOOTH SAW CUT OF EXISTING PAVEMENTS, CURBS AND CURBS AND GUTTERS TO BE DEMOLISHED SHALL BE
PROVIDED.
8. ALL DEMOLITION WORK SHALL BE DONE IN STRICT ACCORDANCE WITH FEDERAL, STATE AND LOCAL LAWS AS
WELL AS OSHA REGULATIONS.
9. CONTRACTOR'S ACTIVITIES SHALL NOT IMPEDE USAGE OR INGRESS EGRESS TO ADJACENT PROPERTIES.
COORDINATE WITH OWNER MAINTENANCE OF TRAFFIC/PEDESTRIAN CIRCULATION DURING CONSTRUCTION.
10. MAINTAIN POSITIVE DRAINAGE AWAY FROM BUILDINGS AT ALL TIMES DURING DEMOLITION.
11. A DEMOLITION PERMIT MUST BE OBTAINED FROM CURRITUCK COUNTY PRIOR TO DEMOLITION WORK.
Know what's below.
Call before you dig.
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THE DATA GIVEN ON THESE PLANS IS BELIEVED
TO BE ACCURATE, BUT THE ACCURACY IS NOT
GUARANTEED. THE CONTRACTOR IS RESPONSIBLE
FOR VERIFYING ALL LEVELS, LOCATIONS, TYPES,
AND DIMENSIONS OF THE EXISTING UTILITIES
PRIOR TO CONSTRUCTION. IF A DISCREPANCY
IS FOUND, WORK SHALL CEASE AND THE ENGINEER
NOTIFIED. WORK MAY CONTINUE UPON ENGINEERS
NOTICE TO PROCEED.
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PROJECT NO.
P23069
DESIGNED BY
iic
DRAWN BY
JJC
CHECKED BY
MWS
ISSUE DATE
08110123
SHEET N0.
OF 2 SHEETS

LEGEND NOTES
[7"— 7-1
EXISTING CONCRETE 1. OWNER/APPLICANT: O/S SEWER PLANT
L 741 OCEAN TRAIL
COROLLA NC, 27927
2. ENGINEER: QUIBLE & ASSOCIATES, P.C.
P.O. DRAWER 870
KITTY HAWK, NC
TEL: [phone]
3. PROPERTY INFO: PIN: 9935-81-0545 — — — — — — — — — — — -
PID: 01160000040000 i I I
4. EXISTING IMPROVEMENTS SHOWN PER HEADWORKS PLAN BY
ANLAUF ENGINEERING, PLLC 11-01-14.
5. PROJECT SCOPE: THIS PLAN PROPOSES THE REPLACEMENT OF THE EXISTING
BROKEN PRIMARY GRINDER AND SCREEN WITH A NEW SELF CLEANING I I EX.
AUTOMATIC 3MM FINE MECHANICAL BAR SCREEN NTH WASH PRESS AND CONTROL PANEL ONLY. I 2.5 CtOIC
NO OTHER MODIFICATIONS ARE PROPOSED TO THE EXISTING WASTEWATER TREATMENT FACILITY i I rAR9 NC7
HOFFf R
EX. cone.
L — — —
I. — — — — ------------ ----------------- -------
— — — — — — — — — — — — — — — — — — — — — — — —
EX 9.)1th'a A
-----------------------------------------------------------
- — — — — — — — — — --
CONTRACTOR SHALL INSTALL PROPOSED SELF CLEANING AUTOMATIC 3MM (0.125")
EX. 51 DW-77LE S­_ Ex 24, mDTH MECHANICAL BAR SCREEN XS2100-400-3 AND WASH
IRCW PIPIN6FLosv MAIN CHA'Na MECHANICAL BAR SCREEN IN ACCORDANCE PRESS TP 250-500 AS MANUFACTURED BY
WITH THE MANUFACTURER'S RECOMMENDATIONS I I HYDRIA/MN WATER PRODUCTS.
— — L — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
— — — — —
EX 9'NALL EX. Clow. A — — — — — — I ' i PROPOSED SIEMENS HYDRORANGER ULTRASONIC
_j DIFFERENTIAL LEVEL CONTROLLER W/TWO
— — — — — — — — — — — — — — — — — — — — — — — — — — — TRANSDUCERS. ALL MATERIALS SHALL BE
BB 316 STAINLESS STEEL WHEN AVAILABLE. HOPPER
:::
ftft J\
AND DISCHARGE PIPING SHALL BE PROVIDED.
EX. 13'DXTILE
j=L,9py EX. 24'k#,9TH
IIIIIIII
.........::::
IRON PIPIN67 BYPA55 CHAMe-
E 1
::::::::::::::::::::
L — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — FLOW
EX 6'NAU
L— — — — -- — — — — — — — — -- — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — --- --- — — — — — — — — — — — — — — — — -
HAL KKA i' C-RA TIN6 NO 7-1
5HOPW FOR CLARITY
PROPOSED CONTROL PANEL, NEMA 4X, A151304 SS,
,-.--FOR REPLACEMENT SCREEN AND PRESS.
GRAPHIC SCALE
2. 11
0 2' 4I i I
-
IN FEET
I inch = 2' f t_
FLOW
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SUPPORT BRACKET FOR F
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FOOT OF
DISCHARGE PIPE
CONTINUE DOWNWARDS I
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(DEPENDING ON OPTION)
FLOW
,SECTION A -A
NTS
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NTS
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SECTION B-8
NTS
Know what's below.
Call before you dig.
WASTEWATER NOTES:
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THIS SITE MUST MEET THE FOLLOWING CRITERIA:
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:910 MGA
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THE DATA GIVEN ON THESE PLANS IS BELIEVED
TO BE ACCURATE, BUT THE ACCURACY IS NOT
GUARANTEED. THE CONTRACTOR IS RESPONSIBLE
FOR VERIFYING ALL LEVELS, LOCATIONS, TYPES,
AND DIMENSIONS OF THE EXISTING UTILITIES
PRIOR TO CONSTRUCTION. IF A DISCREPANCY
IS FOUND, WORK SHALL CEASE AND THE ENGINEER
NOTIFIED. WORK MAY CONTINUE UPON ENGINEERS
NOTICE TO PROCEED.
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'PROJECT NO.
P23069
DESIGNED BY
JjC
DRAWN BY
Ac
CHECKED BY
mWS
ISSUE DATE
1�
08/10/23
SHEET NO.
2
�,OF 2 SHEETS
0

=a
Green XS
i iL
Unique sealed low friction bottom step without
plastic spacers gives the highest separation of any
step screen on the market, making it an excellent
replacement for perforated screens.
Self cleaning stainless steel discharge without
plastic spacers.
Robust construction with 1 /8" thick bars.
Large, hooked steps along the whole bar length
ensures high conveying capacity even for large
objects.
A linkage transmission provides no limitations in
minimum or maximum water level.
Solid cross beams provide high mechanical
strength and rigidity, allowing for screen widths
greater than 9'.
Flexible mounting angle up to 53 degrees for
compact installation in short channels.
Innovative support legs simplify installation, which
enable the screen to be easily rotated out of the
channels for service.
Enclosed, safe and hygienic with easy to open
access doors.
MN Water Treatment Products
PO Box 965
Boulder, CO 80306
Phone [phone]
WATER TREATMENT Email [e-mail]
PRODUCTS Web www.mnwatertreatment.com

Green XS
1
The Cross Screen XS is a mechanical step type screen that separates solids (screenings, rubbish) from water.
Features:
The Cross Screen XS is completely self cleaning without
flushing or brushes, resulting in unrivaled capacity with far
greater value.
With each step, the bottom step pumps grit from under
the feet of the lamellas, minimizing grit related issues
while ensuring captured grit is conveyed out.
Contoured stainless steel lamellas, with the most
accurate spacing on the market, maximizes carrying
capacity on each step while preventing material from
rolling down.
- A robust linkage system with automatic greasing or
sealed bearings, along with an isolated motor
compartment, provides a resilient system which can
withstand long-term reliable use.
Specifications:
Discharge Height: 27.5"- 16'4.8"
Effective Width: 1 ' 2" - 8'
Slot Width: 1 /8" , 1 /4", smaller sizes available
Leaders in Innovation:
MN has over 30 years' experience in water treatment
machinery, with over 100 domestic and thousands of
international installations.
We offerthe most extensive knowledge, providing innovative
solutions on screening equipment.
- We manufacture all our products, using certified materials
and welders, adhering to ISO & CE standards.
MN Water Treatment Products
PO Box 965
Boulder, CO 80306
Phone [phone]
WATER TREATMENT Email [e-mail]
PRODUCTS Web www.mnwatertreatment.com

SELF CLEANING FINE BAR SCREEN AND SCREENINGS WASH PRESS
PART 1.00 - GENERAL
1.01 SUMMARY
A. The Contractor shall furnish, install and place into satisfactory operating condition one (1) mechanical
fine bar screen and one (1) wash press for separating solid, semi -solid debris and floating matter from
raw sewage as shown on the Shop Drawings and described in the Specifications.
1.02 REFERENCES
A. American Institute of Steel Construction (AISC)
B. American Society of Testing and Materials (ASTM)
C. American Society of Civil Engineers (ASCE)
D. American Welding Society (AWS)
E. Steel Structures Painting Council (SSPC)
1.03 SYSTEM DESCRIPTION
A. The equipment specified herein is intended to be standard equipment for use in a screenings
application specifically to separate solid, semi -solid debris and floating matter from raw sewage. The
equipment specified under this Section shall include an automatically cleaning fine bar screen, a
washer/compactor press, discharge pipe from the wash press, and a control panel to manage the
equipment for manual and automatic operation. All equipment shall be installed as directed by the
manufacture.
The scope of equipment supplied must convey the screenings out of the channel to the top of the
structure elevation, compact the screenings, and discharge them into an adjacent screenings receptacle.
The frequency of lifting the screenings shall be normally controlled by differential level control. This
level mode of operation may be overridden by a timer control or manual control.
B. Design summary:
Mechanical Fine Bar Screen
1. Number of Units
1
2. Channel width, inches
24
3. Channel depth, inches
60
4. Flow Rate, MGD
Maximum
?
Average
?
Minimum
?
5. Bar width, inches
1/8
6. Clear spacing between screen bars, inches
1/8
7. Maximum differential head cross screen, inches
18
8. Maximum Motor size, HP
1.0
9. Motor type
TEFC
Screenings Wash Press
1. Quantity 1
2. Feed Solids Concentration, dry solids 15-25%
3. Pressing Zone Diameter, inches 10
4. Discharge Pipe Diameter at press, inches 10
5. Discharge Pipe Diameter after initial elbow, inches 12
Mechanical Fine Bar Screen and Screenings Conveyance

6. Maximum Motor size, HP 3.0
7. Motor type TEFC
C. All mechanical equipment shall be provided with a substantial stainless steel nameplate, mechanically
fastened with stainless steel hardware in a conspicuous place, clearly inscribed with the manufacture's
name, year of manufacture and serial number.
1.04 PRODUCT HANDLING
A. It shall be necessary to protect the screen system materials from all other Contractors before, during,
and after installation. In the event of damage, immediately make all repairs and replacements necessary
to the approval of the Engineer and at no additional cost to the Owner or manufacturer.
1.05 PERFORMANCE
A. The fine bar screen shall be designed to handle the maximum flow rate as noted in paragraph 1.03.13.
B. The fine bar screen shall consist of a stationary step -type bar screen, operated by an electric motor.
The screen shall operate via a series of stationary and elliptically rotating screen bars which are
actuated to remove debris from the screen surface.
C. The operation of the screen shall be automatically initiated based on the differential raw water level
up and downstream of the screen. The fine bar screen shall give a closed circuit path for a self-cleaning
movement across the entire surface of the screen, in accordance with the principle of counter -flow.
D. The wash press shall be sized to match the screen discharge and shall convey the screenings into a
screenings container.
1.06 SUBMITTALS
A. Pre -Bid Approval
All manufacturers who wish to submit a proposal on the screen equipment as herein specified shall be
required to pre -submit and obtain the Engineer's written approval to be acceptable for use on this
project. All information shall be provided to the Engineer no later than 15 days prior to the bid date.
The fact that a specific product name is listed in the specifications does not relieve that named
manufacturer from fully meeting the Specification. Manufacturers found to be acceptable shall be
notified by a written addendum. Contractors and manufacturers shall be advised of approved
equipment prior to bid by the Engineer.
B. Shop Drawings
Prior to screen system fabrication, the Contractor shall submit complete Shop Drawings for the
screenings and press unit showing all dimensions, materials, hook-ups, installations, and any available
or necessary information requested by the Engineer.
1.07 QUALITY ASSURANCE
A. In order to assure uniform quality, ease of maintenance and minimal parts storage, it is the intent of
these Specifications a single manufacturer shall supply all equipment called for under this Section.
Mechanical Fine Bar Screen and Screenings Conveyance 2

B. It is the Contractor's responsibility to ensure the installation of the screen shall fit as designed. The
Engineer will hold the Contractor responsible for a complete installation. Complete Shop Drawings
for the screen, wash press, and all items associated in this Section shall be provided for approval.
C. No equipment shall be supplied by any manufacturer not regularly engaged in the manufacturing and
production of fine bar screen equipment designed for use in wastewater treatment. The manufacturer
must have installed and had in satisfactory use a minimum of fifty (50) installations of similar type
comparable to the units specified. Only installations in the Carolinas will be acceptable as meeting the
experience requirement.
D. The term "installations" shall mean individual projects/contracts. Multiple equipment units for a
project shall be considered as one (1) installation toward meeting the experience requirements.
E. Bids from manufacturers lacking the experience requirements, but meeting all technical and
performance requirements of the Specifications, can be considered if the manufacturer provides a
satisfactory three (3) year maintenance bond in lieu of evidence of experience and operation.
Maintenance bond shall be for the replacement value of the equipment. The bonding company shall
have a policy -holder rating of A+ and a financial rating of "Class XV" in the most recent edition of
"Best Key Rating Guide". The bonding company shall be licensed to do business in the state of
installation.
PART 2.00 - PRODUCTS
2.01 MATERIALS AND EQUIPMENT
A. Materials and equipment shall conform to the respective publications and other requirements
specified and shall be the standard products of a manufacturer regularly engaged in the manufacture
of the products:
1. Steel
2. Cast Steel
3. Cast Iron
2.01.1 Materials
ASTM A 36/A 36M
ASTM A 27/A 27M
ASTM A 48, Grade 30
A. The screen, step blade packages, frame, sole plate, link mechanisms, blade cross pieces, drive
console and covers shall be constructed from minimum Type 316 stainless steel. The entire screen
assembly shall be full immersion passivated after the completion of all welding, machining, and
fabricating.
B. Unless otherwise stated above, specified or permitted, the materials used in the fabrication of the
equipment under this section shall conform to the following:
1. Chutes
2. Troughs, End Plates, Covers
3. Supports
4. Hoppers
5. Bolt, Nuts, and Washers
Supports, trough, lids & drive
AISI 316 stainless steel
AISI 316 stainless steel
AISI 316 stainless steel
AISI 316 stainless steel
316 stainless steel
Mechanical Fine Bar Screen and Screenings Conveyance

Mechanical Fine Bar Screen and Screenings Conveyance

2.02 SCREENING EQUIPMENT
2.02.1 Mechanically Cleaned Fine Bar Screen Description
A. The bar screen shall consist of a stationary step -type screen, operated by an electric drive unit. The
screen shall operate via a series of stationary and circularly rotating screen bars which are rotated to
remove debris from the screen surface. All metal components, except motors, driveshaft and bearing
housings, shall be Type 316 stainless steel. The screen system shall include a screw wash press to
collect the screenings from the step screen, discharge piping, supports, anchors and all associated
equipment. The screen system shall be automatically controlled based on the differential raw water
level in the influent channel before and after the screen. Being named or bidding as an equal does
not relieve the manufacturer of meeting the requirements specified herein of this Section.
B. The manufacturer selected must stock parts local to the state of installation, including screen bars,
drive motors and gearboxes which can be delivered from stock.
C. The manufacturer shall supply the screen channel with the maximum screening area available. All
structural steel shall be Type 316 stainless steel with a minimum thickness of 0.20 inch. The screen
step blade packages and frame shall be mounted within and above the sewage channel. Easy access
shall be provided for maintenance of the screen from the front and sides of the unit by employing a
pivoting mechanism out of the channel.
D. A control system shall be provided to control the motor in the manner indicated in section 2.02.8.
Motor controls shall be coordinated with the associated motor and shall have properly sized thermal -
overload protective elements or IDEC trips. Except where otherwise indicated, starters shall be
provided in weatherproof, Class I, Division II, enclosures. The step screen motor shall be, isolated
from the channel, and shall be fully enclosed.
2.02.2 Self Cleaning Step Screen Requirements
A. The step screen shall comprise a screen with multiple fixed -parallel and movable bars which are
arranged in a plane, 50 degrees inclined downwards into a flow of water. The movable bars shall be
interconnected in parallel to at least one package of fixed bars, with the blade edges turned into the
wastewater flow. Movement is caused by a drive mechanism which brings about a closed, circular
path in the plane of the bars, including a vertical movement component surpassing the step height of
the bars. The bars must be a minimum thickness as specified bar width indicated in section 1.03.B,
and shall have a contoured hook design; flat steps shall not be allowed.
B. Blades shall have a hinged (non rigid or attached) bottom step to assure passage of flushing sand.
The bottom step mechanisms must actuate with each step action and prevent any opening greater
than the specified spacing of the screen from being exposed. The flap mechanism must move with
each step automatically and shall pump grit from under the feet of the bars to prevent jamming.
Manual flap mechanisms shall not be allowed.
C. The fine screen must give a closed circuit path for a self-cleaning movement across the entire surface
of the screen, in accordance with the principle of counter -flow. Cleaning shall be accomplished
without any additional rinsing, external cleaning, brushes, wipers, or other mechanical equipment.
Saw teeth may be provided on the back of each blade to prevent jamming by providing a cutting
action of any attached material. Wash bars may be provided to reintroduce organics into the stream
of flow; however they shall not be necessary to clear debris.
Mechanical Fine Bar Screen and Screenings Conveyance

2.02.3 Screen Blades
A. The bars of the screen shall be accurately set and have plastic spacers to provide a consistent
clearance throughout the entire step cycle. The bars shall be step shaped with replaceable spacers.
B. The bars shall be contoured in shape, forming a hook from the foot of the step to the base. Bars with
flat, right-angled steps shall not be allowed.
C. The bars shall be a minimum thickness as specified bar width indicated in 1.03.B. Additional bars
shall not be bolted to the bottom of the stationary and movable bars. The bars shall not be attached to
the sole plate which allows flexibility of the bars to move from side to side. The bottom -hinged part
of the movable bar package shall provide the required flexibly via the stainless linkage.
2.02.4 Sole Plate:
A. A mechanically actuated bottom step shall be provided and actuate with each step of the screen. This
flap mechanism shall create a flushing system to prevent sand and grit from accumulating under the
footing of the bars at the bottom of the screen. Screens without this bottom step, including manual
actuated bottom steps or thick, solid bottom steps, shall not be considered.
B. The sole plate shall be level with the horizontal plane and it shall neither be attached to the concrete
floor nor to the channel walls by way of using anchor bolts.
2.02.5 Link Mechanism
A. The drive mechanism shall be contained on both sides of the fine bar screen. The drive sprockets,
shafts, bearings, motors, gear reducers and other moving mechanisms must be located above the
access slab. The components shall be accessible from the front of the screen to allow for ease of
maintenance.
B. Link mechanisms (one on each side) shall consist of two rigid arms. Glide bearings shall be used at
the lower end and ball bearings at the upper end. All bearings must be sealed, and automatic oilers
shall not be allowed. Chain or sprocket drive mechanisms shall not be allowed. The link mechanisms
(one at each side) shall each consist of the bearing eccentric, bar, and two links with glide bearings at
the lower end of the bar and a ball bearing at the upper end. The link mechanism shall include a first
link running between a fixed point in the strainer and the bottom end of the connecting bar, and a
second link running between the bottom end of the connecting bar and an attachment at the bottom
end of the movable blade package.
C. The screen shall never see an opening greater than the specified clear spacing indicated in 1.03.B,
including the bottom of the screen when in operation.
2.02.6 Frame
A. The frame shall accommodate the step blade packages, blade cross pieces, link mechanisms, and
drive unit including shaft, gears and motors.
B. The frame shall be accurately set into position into the channel and shall anchor securely into place
through fixing the support legs to the channel top. The screen shall be set at 50 degrees to the
horizontal. The frame facing the flow stream shall be vertical and shall not present any additional
restriction to influent flow entering the screen. Rubber side seals shall be bolted to the front vertical
side plates of the frame to direct flow into the screen surface.
Mechanical Fine Bar Screen and Screenings Conveyance

C. The frame sides shall be fully bolted to the sole plate, bar cross pieces and the drive console. The
frame sides shall form the supports for removal of the cover panels at the sides, front and back of the
screen.
D. Frame components shall be a minimum thickness of 0.20-inch stainless steel.
2.02.7 Drive Unit
A. The selected drive unit shall be suitably and continuously rated to match the duty of the screen. The
drive unit shall be directly coupled to the screen drive shaft through the gearbox.
B. A facility shall be incorporated within the drive unit console mounting arrangement to enable the
movable blade package to be correctly and accurately positioned across the screen frame and without
the necessity for any special tools.
C. The screen shall be equipped with an overload amp draw protection, which shall be activated in the
detection of a blockage of the screen. The overload device shall actuate an alarm condition at the
screen control panel.
D. The drive unit shall be designed to stay out of the flow, with all connections out of possible danger
of submergence. The only allowable connection to the drive unit will be a stainless steel bar link.
Only one link will be allowed on each side of the screen.
E. Equipment above the level of the sewage -carrying channel shall be fully enclosed in a Type 316
stainless -steel housing. The housing shall be provided with a sufficient number of doors or
removable panels to ensure ready access to any part of equipment for repairs, replacements, or
cleaning.
2.02.8 Step Screen Control System Requirements
A. The electrical control system shall provide for automatic control of the screen and press by a float
switch and/or ultrasonic high liquid level control system in connection with an adjustable time clock
to provide a variable time between cleaning operations.
B. The controls shall be housed within an AISI 316 stainless steel NEMA 4X enclosure.
C. All controls necessary for the fully automatic operation of the screen shall be provided.
D. The drive unit and monitoring devices are wired internal to the machine.
E. There shall be a minimum of a fused disconnect switch, Hand -Off -Automatic control switch, power
overload protection device, run lights and warning lights, motor starter, and elapsed time meter.
F. The step screen shall be at rest in its initial position. The step screen travels one revolution and
returns to rest in its initial position. A latching relay returns the screen to its original position once it
makes a revolution.
G. At no time shall it be possible to run the screen backwards during maintenance by reversing motor
loads.
Mechanical Fine Bar Screen and Screenings Conveyance 7

2.02.9 Screening Performance
A. To be considered, each screen supplier shall demonstrate average total solids and volatile solids
removal efficiencies as listed below under the listed raw influent conditions for a 1/8-inch screen.
The screen supplier shall be capable of removal rates with the screen of the below table from actual
pilot work with a step screen preformed by the supplier.
Minimum
Raw WWTP Influent
Total Solids 400 mg/1
Required Pilot Screen Performance
Solids Capture 1001b/MGD
Volatile Solids Removal 10%
2.02.10 Float Switch Control and/or Ultrasonic Level Sensor
Maximum
900 mg/1
5001b/MGD
26%
Average
600 mg/1
275 lb/MGD
15%
A. A float switch and/or ultrasonic level sensor shall be supplied, as specified in the Shop Drawings.
B. Devices Summary:
1. A float switch may be used to control the head differential across the screen. The set point for
the level sensor shall be continuously adjustable over the full range of water level possible in
the influent channel. Adjustment of sensor set points shall be made at the float switch hanger.
An ultrasonic level sensor may be mounted directly above the influent channel up and
downstream of the bar screen to monitor differential across the screen. The sensors may be
mounted in such a location that it is easily accessible for service and never come into contact
with raw wastewater. The sensor shall be enclosed in a weatherproof enclosure and provided
with an aluminum sun shield. The ultrasonic level sensor shall include two ultrasonic
transducers, one upstream of the screen and one downstream of the screen. Stainless steel
ultrasonic level sensors wall brackets and stainless steel concrete anchor bolts shall be supplied
with each stainless steel wall bracket.
C. The set point for the level sensor shall be continuously adjustable over the full range of water level
possible in the influent channel. Adjustment of sensor set points shall be at the differential level
transmitter.
2.02.11 Cleaning Mechanism, Wash Water System, and Transport Area
A. The step -screen shall be self-cleaning. No cleaning mechanism shall be required, including brush or
flushing devices at the discharge point(s). A Type 316 stainless steel spray bar and brass '/2 inch
solenoid valves may be supplied over the steps of the screen. The spray shall be controlled
automatically from the step screen control system.
B. Screens that require influent to pass through more than one set of screening media shall not be
considered. Screens which employ a circular moving media that pass through the flow and in the
direction of flow to screen debris and then move backwards against the direction of flow to the
return position shall not be considered. Screens using step like porous plating with circular holes will
not be permitted.
C. Screens that operate with the possibility of trapping screenings or other materials between screening
media will not be permitted. No screen will be considered that has a cross bar for support anywhere
in the screening system in the flow except at the absolute top and bottom of the screen frame.
Mechanical Fine Bar Screen and Screenings Conveyance g

2.02.12 Discharge Hopper
A. A rectangular stainless steel inlet hopper for solids, which feeds into the wash press, shall be
included. The inlet hoppers shall have dimensions as shown on the Shop Drawings. The hopper shall
be mounted to the top of the inlet chamber. Sloping sides shall funnel the screenings into the
compacting area.
B. Removal of the hopper shall not be required to rotate the screen from the channel for maintenance.
C. The hopper shall be a minimum of Type 316 stainless steel.
2.03 WASH PRESS GENERAL
The spiral screening press shall be manufactured by the chosen manufacture and supplied with their
step screen and controls. The press zone will consist of a perforated plate screen, covers assembly, and
spray wash system.
2.03.1 Materials and Equipment
The spiral screening press shall be constructed of the following components:
A. The spiral will be constructed of high strength carbon steel, prime coated for protection during
shipment. The spiral will have a normal thickness of approximately 0.8 inches. The shaft of the spiral
shall have a diameter of 3 inches. The total flight pitch will be approximately 7.8 inches. The spiral
will have an OD of approximately 9.5 inches to fit the trough.
B. The press trough will have an internal dimension of approximately 10 inches and be constructed of
1/8 inch type 316 stainless steel. Trough length will be a maximum of 50 inches. The trough length
shall be coordinated with the screen discharge hopper and screenings dumpster as shown on the Shop
Drawings. The trough will be covered with 1/8-inch Type 316 stainless steel covers.
C. Free liquid from feed materials will drain through a screen located at the outlet end of the unit. The
screen will conform to the press trough radius, perforated. A 4-inch plain end 316 SST pipe with a
hose will connect with drainer discharge section at inlet end.
D. The nominal inlet width will be 13 inches with a length of 20 inches. The inlet will be covered during
shipment of equipment. A transition feed hopper shall be supplied by the Contractor. The Contractor
shall be responsible for coordination of hopper sizes for discharge hopper and for press. Any
modifications to the discharge hopper or the inlet of the screenings press that are required for proper
operation shall be the responsibility of the Contractor.
E. The unit will have support legs constructed of minimum 1/8-inch Type 316 stainless steel designed to
support the required loads.
F. The perforated plate will consist of Type 316 SST plate steel with 1/8-inch holes.
G. The covers assembly will consist of a 1/8-inch Type 316 stainless steel outer shell, a latching top cover
to provide easy access for cleaning the screen and a back pressure door which will allow the initial
screenings plug to form at the discharge end.
Mechanical Fine Bar Screen and Screenings Conveyance 9

2.03.3 Spray Wash System
A. A 3/4 inch NPT pipe connection water nozzles supplied with clean water will be located on the upper
level of trough to wash the compaction screen. An additional 3/4 inch NPT pipe connection water
nozzle supplied with clean water with a manual valve will be located at the bottom of compaction
screen to wash and clean. A 3/4 inch NPT pipe connection water nozzle supplied with clean water is
located at the bottom of the drainage assembly at the inlet. The wash press shall require 8 GPM at 70
psi.
2.03.4 Drive System
The drive system shall consist of a motor, gear reducer and drive shaft:
A. The motor shall be a maximum of 3.0 HP, 1800 RPM, 230/460 volt, 3 Phase, 60 Hz, 1.15 S. F., TEFC
B. A hollow shaft helical cylindrical reducer with radial and trust bearings direct couple the motor. The
AGMA Class II cast iron reducer will have an output speed of approximately 9 rpm. The service factor
rating shall be at least 1.15. The motor and gear reducer shall be SEW Eurodrive.
2.03.5 Press Control System
A. The wash press control mode is selected with the press HAND -OFF -AUTO switch. In the HAND
position, the wash press shall operate if control power is on and the overload has not tripped. The
PRESS RUNNING light will come on at any time the wash press is running. The MOTOR
PROTECTION TRIPPED light will come on at any time the press overload has tripped. In the OFF
position the press will not operate. In the AUTO position, the press will operate automatically if control
power is on and the overload has not tripped.
PART 3.00 - EXECUTION
3.01 INSTALLATION
All equipment and materials specified herein shall be properly installed, free from defect, in strict
accordance with the manufacturer's instructions and Shop Drawings. The installation shall include all
materials, equipment, piping, equipment wiring, power source connections, switches, relays, fittings,
miscellaneous controls and all items necessary for the proper operation of the fine bar screen and press,
whether or not specifically detailed herein or shown on the plans. No consideration shall be given for
extra payment for necessary and obvious appurtenances due to omission of such in plans and
Specifications.
The manufacturer shall schedule one trip to the project site for equipment start-up assistance and
operational training. After installation of equipment to satisfactory operating condition, the
manufacturer shall furnish a qualified representative for a minimum of 1 man day (up to 8 hours) to
inspect, supervise field test and provide start-up of the equipment for the Contractor. The following
shall be performed during installation:
A. All electric motors shall be checked for proper rotation. All electric motor driven equipment shall be
checked for proper amperage draw under full load conditions. A tabulation shall be made of all tests and
the results submitted to the Engineer.
B. All welds shall be continuous unless otherwise specified. Facing surfaces of bolted joints shall be
shop primed. Facing surfaces of field welded components shall be beveled and match marked.
C. Sharp comers of all cut and sheared edges shall be made smooth.
Mechanical Fine Bar Screen and Screenings Conveyance 10

D. All iron and mild steel surfaces to be painted shall be dry abrasive blasted in accordance with SSPC-
SP6, and in accordance with the painting section of these Specifications. Surfaces shall be painted
within 24 hours to prevent rusting and surface discoloration. Stainless steel shall be cleaned with
mild abrasive wheels and/or nonferrous blast media to remove heavy scale and welding carbon.
E. Concrete for foundations shall be as specified in the design drawings. Concrete foundations shall be
integral with, and of same strength as the building floor, unless otherwise specified. Concrete used in
foundations that are entirely separated from the surrounding floor shall be 2500 psi. When new
foundations are constructed on existing concrete, new concrete shall be bonded to old as specified in
the design drawings. Foundation bolts, as required, shall be furnished for proper positioning during
placement of concrete.
F. All non -stainless steel equipment shall be thoroughly cleaned, primed, and given two finish coats of
paint at the factory in accordance with the recommendations of the manufacturer. Contractor shall
coordinate colors, finishes and field painting with the Engineer.
3.02 TESTING AND OPERATOR TRAINING
A. After installation of the fine bar screen and conveyor system, the Contractor shall conduct
operational tests in the presence of the manufacturer's representative required to demonstrate the
screen system operates in accordance with the requirements of this Section. The supplier shall have
one day of testing and checkout on site.
B. Operator training for the Owner's personnel after system is operational shall be provided. Training
shall take place while the manufacturer's representative is at the job site for inspection.
3.03 OPERATION AND MAINTENANCE (O&M) MANUALS
A. O&M manuals shall contain complete information including assembly, operation, lubrication,
adjustment, and maintenance instructions.
B. O&M manuals shall include instructions, equipment ratings, technical bulletins, and any other printed
matter such as wiring diagrams and schematics, prints or drawings, containing full information
required for the proper operation, maintenance, and repair of the equipment. Included be a spare parts
diagram, complete spare parts list, bill of materials, OEM part numbers and manufacturer's catalog
information of all equipment components.
3.05 WARRANTY AND GUARANTEE
A. The manufacturer shall warrant all parts to be free from defects in materials and workmanship for a
period of one (1) year after installation. A letter shall be required from the manufacturer's technical
representative documenting dates and results of specified inspections, initial operation and testing of
equipment. All defects covered by warranty shall be furnished, shipped and installed at no charge to
the Owner.
END OF SECTION
Mechanical Fine Bar Screen and Screenings Conveyance 11

WATER TREATMENT
PRODUCTS
Operation and maintenance
MN Water Treatment
PO Box 965
Boulder, Colorado
80306
manual
Cross Screen
XS 2100 - 400 - 3
Phone: [phone]
Fax: [phone]
TV
E-mail:
[e-mail]
Web:
mnwatertreatment.com

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WATER TREATMENT
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List of contents
1. About the screen..........................................................................................................4
Structureand function......................................................................................................................................................4
Use............................................................................................................................................................................................. 6
1.
Safety..........................................................................................................................7
General..................................................................................................................................................................................... 7
Duringoperation..................................................................................................................................................................7
Whenlifting............................................................................................................................................................................8
Machineprotection.............................................................................................................................................................8
Electricalwork......................................................................................................................................................................9
3. Storage, transportation and packing............................................................................9
Scopeof delivery..................................................................................................................................................................9
Storage......................................................................................................................................................................................9
Transportation...................................................................................................................................................................10
Packing..................................................................................................................................................................................10
4. Functional description................................................................................................10
Principal................................................................................................................................................................................10
Operation.............................................................................................................................................................................10
5. Assembly and installation..........................................................................................12
Assembly..............................................................................................................................................................................12
Channelinstallation.........................................................................................................................................................14
Sealingagainst channel wall........................................................................................................................................17
Greasecartridge................................................................................................................................................................17
Tankinstallation...............................................................................................................................................................17
Subsequentequipment..................................................................................................................................................18
Installation of level sensor............................................................................................................................................19
Electricalinstallation......................................................................................................................................................20
Operation and maintenance manual - XS - Fine Screen I 1

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Dperation..................................................................................................................21
Automatic operation- step mode...............................................................................................................................21
Automatic operation - time cycle mode.................................................................................................................
21
Automatic operation - differential mode...............................................................................................................
21
Manualoperation.............................................................................................................................................................
21
Overload/alarms...............................................................................................................................................................
22
Reverseoperation............................................................................................................................................................22
Others....................................................................................................................................................................................
22
7. Settings......................................................................................................................23
8. Start-up.....................................................................................................................24
Testrun without water.................................................................................................................................................. 24
Testrun with water......................................................................................................................................................... 24
Adjustingthe start level................................................................................................................................................. 25
9. Regular supervision and maintenance........................................................................25
Weekly................................................................................................................................................................................... 25
Monthly................................................................................................................................................................................. 26
Yearly..................................................................................................................................................................................... 26
10. Disassembly...............................................................................................................28
Before starting the disassembly................................................................................................................................. 28
Disassembly........................................................................................................................................................................ 28
Disposal................................................................................................................................................................................. 28
11. Spare parts drawing and list of spare part..................................................................29
Operation and maintenance manual - XS - Fine Screen 2

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Introduction
The Operation and maintenance manual is intended to provide relevant
staff a clear description of the machine and its parts. In addition, this
manual contains important instructions on how to install the machine, put
into operation and be maintained. All who come in contact with the
machine shall comply with the safety precautions, warnings, regulations
and other instructions in this manual.
This Operation and maintenance manual must always be available to all
personnel involved in the installation, commissioning, operation, service /
maintenance and transportation.
MN Water Treatment assumes that the person responsible for or working with
this equipment is familiar with the regulations outlined in the local
regulations regarding Work Environment especially for sewage systems and
other applicable regulations.
Never start installation or assembly prior to the
relevant personnel have read and understood
the contents of this manual. Especially
important is the understanding of the safety
instructions and warnings that are described in
the manual.
It is forbidden to use the machine in any other
manner or for purposes other than those
described in this manual.
MN Water Treatment is not responsible for any damages caused by
negligent handling of the machine or breach of this manual.
MN Water Treatment's responsibility ceases when:
- The machine or any individual component is loosened or
disassembled
- Parts that do not belong to the machine are assembled
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Operation and maintenance manual - XS - Fine Screen
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WATER TREATMENT
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Parts that are not original spare parts are fitted without MN Water
Treatment's approval
Modification, renovation or re -build of the machine is not permitted without
written consent of MN Water Treatment.
1. About the screen
The fine screen XS Cross Screen is designed to separate solids from waste or
process water through mechanical treatment. The machine is designed for
automatic operation and starts automatically depending on operation
settings.
XS Cross Screen is available in different models with discharge heights from
27.5" to 16'4.8". For each model there are different screen widths and slot
widths.
The models are written as follows:
e.g. XS 1700-500-3 (model - effective width -slot width)
Structure and function
The machine consists of three main parts:
1. Motor including gearbox, bearings and excenters, Figure 1.
2. Bar package, Figure 2.
3. Side plates including link mechanism, Figure 3.
The machine consists of a separate drive
package that includes gear, electric motor,
frame and crank bearings and electrical
equipment. The electrical equipment consists of
home position indicator, overload protection
and connection terminals for external
-:� connection.
The drive unit is screwed to two robust frame
sides which serves as guide plates for incoming
water and as attachment for one of the two bar
packages, the "fixed".
Figure 1, Drive unit
Operation and maintenance manual - XS - Fine Screen

WATER TREATMENT
PRODUCTS
Figure 2, bar package
TM
The bar package consists of two sets of parallel positioned and individually
attached bars. One set is fixed and the other is movable. The bars are hook -
step shaped and designed to optimize the conveying capacity. The second
bar package, the "moving", is integrated in the fixed package - every other
bar is moving and every other is fixed. The distance between a fixed and a
movable bar is the slot width.
fi
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1�
including link mechanism
The moving package is
suspended in a frame side
placed link mechanism,
which is connected to the
drive mechanism. The
movable bars makes, with
the drive unit, a circular
motion with a circular
diameter equal to or slightly
greater than the distance
between two edges on a
fixed bar.
Figure 3, side plates
Operation and maintenance manual - XS - Fine Screen

Use
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WATER TREATMENT
PRODUCTS
The machine is used for separation of solids from waste or process water.
Normally the Cross screen is used in one of the following locations:
municipal and industrial wastewater treatment plants, paper industry, food
industry, tanneries and textile industries.
It is forbidden to use the machine for any other
purpose than the above without written consent
from MN Water Treatment.
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Operation and maintenance manual - XS - Fine Screen L

2. Safety
General
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WATER TREATMENT
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The safety section contains important safety information and should be
followed closely. There is a risk of personal injury or other damage if the
safety instructions are not followed.
Before any work is started, the person or persons
who will perform the work must always read this
safety section.
- It is forbidden to use the machine for other than its intended purpose.
- People can be injured if the machine is used for other than its intended
use and whether people with inadequate knowledge manoeuvres or
otherwise operate the machine.
- All personnel who operate the machine must have read and
understood this manual, especially this piece.
- The restrictions and instructions provided in this manual should be
followed, especially those relating to safety.
- Rebuilding and modification of the machine is prohibited.
- Exercise caution when lifting; never walk under a suspended load.
- Before cleaning, servicing or dismantling the safety switch must be
turned off and locked with a padlock.
- Except as specified herein shall also general safety rules that apply at
the local plant be followed.
- All warning signs shall be maintained in the same condition as when the
machine was delivered.
- All machine protections and covers must be mounted and locked
before starting the machine.
- The support must be firmly anchored in the machine and to the ground
before starting the machine.
During operation
- Work on the machine is forbidden when it is in operation
- Keep in mind that the machine starts automatically without notice
Operation and maintenance manual - XS - Fine Screen
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Protection plates and covers of drive package shall be assembled
Inspection cover at discharge can be opened but it is forbidden to
touch moving parts.
When lifting
- Use only approved lifting equipment and check the maximum load of
the lifting equipment before lifting begins
- Use caution, do not stay under suspended loads.
- The machine must only be lifted at designated lifting eyes
- Lifting equipment must not be removed before the machine is fixed to
the ground
- For details on the lifting procedure, see "lifting equipment"
Machine protection
The screen is equipped with inspection covers and bolted plates. These
should always be mounted and locked when the machine is in operation.
If loose items are dropped into the machine it can cause injury on persons
as well as on the machine.
Inspection covers and bolted plates are placed above the drive units. There
are also one or more inspection covers under which parts of the screen,
incoming water and screening mat is visible.
At the discharge is an inspection lid. Thereunder is a safety net fitted that
prevents access to moving parts. When the door is open, you can see the
screen discharge to subsequent equipment, such as press / conveyor.
WARNING: The screen and subsequent equipment starts automatically
without notice. Switch for manual operation shall be provided locally.
It is absolutely forbidden to clean the machines
outlet or subsequent equipment's inlet by hand
or with an object without the safety switch
turned off and locked with a padlock.
Operation and maintenance manual - XS - Fine Screen
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Electrical work
Electrical work must be performed by a licensed electrician and in
accordance with applicable laws, regulations and rules. Work shall also be
carried out in accordance with local regulations.
- To avoid accidents, electrocution, it is important that the electric
motors, instruments and cables are intact.
- Electrical cables should be routed so that there is no risk of wear
against the machine parts.
- All equipment and instruments should be grounded. Moisture and
water carries an increased risk of accidents caused by electric
current.
- When replacing or repairing an electrical component, its power must
is always be off and the switch be padlocked before starting work.
It is forbidden to connect the machine
electrically while installation or other work on
the machine is in progress.
3. Storage, transportation and packing
Scope of delivery
Storage
Besides the screen the following is included in a standard delivery:
- One (1) operation and maintenance manual with manufacturer's
declaration
Two (2) support legs
One (1) electrical torque guard
Storage of the machine may be made for a shorter period and only in it's
original packaging. Make sure the machine is stored in an indoor type
environment not exposed to frost. Before the machine is kept in storage for
a longer period, contact MN Water Treatment.
Operation and maintenance manual - XS - Fine Screen p

Transportation
Packing
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WATER TREATMENT
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Transportation shall be made in such a way that the machine is secured
from being able to slip or fall. Lifting the machine over people is absolutely
forbidden. Suitably trained staff should perform lifting and truck driving.
The packaging is specially designed and adapted for the delivered
machine and therefore provides maximum protection. Ensure that the
packaging is not damaged when you receive the delivery. If the packaging
is damaged, please contact MN Water Treatment or your dealer.
4. Functional description
Principal
Operation
The screen is mounted in an installation angle between 45-50 ° in a channel
or in a stainless steel tank. The edges against the channel or tank wall are
sealed with rubber strips. This means that all water including solids
(screenings) must pass through the screen, where a number of moving and
fixed bars are mounted. As the water passes the bars, the solid particles (the
screenings) remains on the bars forming a screenings mat. The thicker the
mat, the better the separation of small particles. The size of the particles
depends on the slot width and screenings mat thickness.
The screenings mat makes the water level in the channel or tank to rise. At
pre-set water level the screen will start and run for one rotation. When the
machine runs one rotation moving the screenings upwards towards the
discharge, the part of the bars closest to the bottom are clean which
makes a passage for the water. The step shaped bars will step by step
transport the screenings mat upwards towards the top edge where the
screenings finally are discharge down to, for example, a press.
Since a thicker screenings mat helps to increase separation it is very
important that the screen does not run more than necessary. Therefore,
make sure that the default starting level of the level sensor is correct.
The machine is operated by a control panel, which is sometimes included in
the delivery from MN Water Treatment.
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The level sensor mounted in the channel/tank before the screen gives a
signal to the control panel that the water level has risen to the pre-set start
level. The screen will start and run one rotation to get the water level to
drop. If the level hasn't dropped, the machine will still have start signal and
run one more rotation.
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5. Assembly and installation
Experienced personnel must carry out the installation in a professional
manner. All electrical wiring must be performed by a qualified electrician
and must comply with current regulations.
Assembly
For ease of installation and future service and maintenance it must be
possible to lift the machine (beam or lifting lugs or equivalent). The lifting
device must be approved and adapted to the machine weight. The weight
of this machine is indicated on the nameplate and in the attached control
card.
Before lifting the machine, check the following:
- Check the channel width and compare it to the total width of the
machine.
- The support legs should not be installed too close to a channel edge, it
may be a risk that the concrete gives way.
- If there is existing equipment, its power must be switched off and the
switch locked with a padlock.
- Attach the support legs to the ground with fasteners, for example
expanding bolts or chemical anchors.
Lifting the equipment
- Use only approved lifting equipment and check the maximum load of
the lifting equipment before lifting begins
- Use caution, do not stay under suspended loads
- The machine must only be lifted at designated lifting eyes,
see Figure 4.
- Lifting equipment must not be removed before the machine is fixed to
the ground.
- If the machine shaft bearings are fitted with grease cartridges, these
shall be unscrewed before lifting.
- The machine must be lifted with a shackle or the like, to avoid the slings
being damaged by the steel frame.
- From screen type XS 1700 there is also lifting eyes under the motor
covers. They must also be used during lifting, see figure 5.
Operation and maintenance manual - XS - Fine Screen
112

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d
Figure 4 Lifting the screen, arrows showing lifting eyes.
Figure 5 Lifting eyes for models XS 1700-4500
WATER TREATMENT
PRODUCTS
Operation and maintenance manual - XS - Fine Screen 113

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Channel installation
Carefully lower the screen into the channel.
ALWAYS use the supplied screws for mounting the discharge cover because
the longer screws can damage the machine. See Figure 6. The bolt No. 1
(M8x8 with washer) shall terminate in line with the inside 2.
2.
Figure 6. 1.
a
Figure 7, discharge height
Place the screen in the
correct position, measure
the correct discharge
height A. See figure 7.
Operation and maintenance manual - XS - Fine Screen 114

Check that the channel is levelled,
see figure 8. Also check that the
channel bottom where the bottom
of the machine is to be placed is
levelled.
Figure 8.
rn TM
WATER TREATMENT
PRODUCTS
900
Install the support legs on the machine and fastened them to the ground.
There are various types of pivoting mechanism depending on machine size.
Support legs and pivoting mechanism shall be mounted as shown below.
Operation and maintenance manual - XS - Fine Screen 115

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Support leg installation XS 1 100-1400
Support leg installation XS 1700-2100
Operation and maintenance manual - XS - Fine Screen 116

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Support leg installation XS 2200-4500
Sealing against channel wall
On the screen frame rubber strips are mounted to seal between the screen
and the channel or tank wall. Is the distance between the screen and wall
larger than 1/4" additional sealing shall be mounted.
Grease cartridge
Shaft and excenter bearings may be equipped with grease cartridges for
automatic lubrication (option). The cartridges shall be set to 12 months by
turning the screw on the top of the cartridge towards number 12.
Tank installation
- Check that the ground is levelled
- Place the tank in the correct position, make sure the tank is levelled
and fasten the tank to the ground.
- Connect the inlet and outlet pipes
- Connect the overflow outlet (if there is one)
- Connect the subsequent screenings handling equipment
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Subsequent equipment
After the screen, screenings handling equipment is installed, eg wash press
or screw conveyor. Any gaps between the screen and subsequent
equipment must be sealed with plates or rubber strips to prevent access to
moving parts. Subsequent equipment shall be mounted as close to screen
discharge as possible.
The chute must be designed so that edges or flanges where the screenings
can be collected and packed is avoided.
Ensure a few millimetres free passage between the bars and the chute
when the screen is in motion to prevent wear and noise.
Figure, Wash press installed after screen
When the inlet to the press / conveyor is smaller than the filter outlet taper
the chute. In order to avoid problems with the screenings, the angle must
be at least 60°.
Operation and maintenance manual - XS - Fine Screen 118

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Figure, tapered chute installed after screen
Installation of level sensor
- A level sensor measuring the upstream water level shall control the
screen.
- The start level shall, for most installations, be as high as possible.
- The level sensor must be installed so the screen can be removed / swung
up out of the channel at the service, and in a calm place without
turbulence and splashing.
Operation and maintenance manual - XS - Fine Screen 119

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Electrical installation
Electrical work must be performed by a licensed electrician and in
accordance with applicable laws, regulations and rules.
Before reading this section, it is important to you - to ensure your safety -
read section 2.
- The screen is connected via the junction box mounted on the screen.
- Connection diagram is located inside the junction box cover.
- Torque Guard is supplied for installation in the control panel.
- Think of supply cable length and location so that they are not damaged
when the machine is swung up out of the channel during service.
- Connect the level sensor separately
Operation and maintenance manual - XS - Fine Screen 20

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WATER TREATMENT
PRODUCTS
5.1.1
6. Operation
Automatic operation- step mode
The Screen and Compactors shall be controlled by the respective H-O-A
selector switches located at the Control Panel. When the respective
equipment H-O-A selector switch is in the HAND position, the equipment
shall run. When the H-O-A selector switch is in the OFF position, the
equipment shall not operate under any condition. When the H-O-A is in the
AUTO position, the equipment shall be controlled by the PLC.
The PLC shall provide remote automatic control of the screens and their
corresponding screenings presses. When a mechanical screen and its
corresponding screenings press are in AUTO mode, the mechanical screen
and the corresponding screenings press shall start simultaneously.
Automatic operation - time cycle mode
Mechanical screen operating time cycle timers shall be provided in the PLC
control program for the screen to allow automatic starting and stopping of
the screens based on set intervals as described herein. Two time programs
shall be provided, one for day and one for nighttime operation. Timers shall
be individually adjustable from the Operator Workstation. It shall be possible
for the Operator to select the hours of operation for each of the day and
night timers on a 24-hour clock. One of the timers shall be in effect at all
times. Screen 'run" intervals shall be adjustable over a range of 0 - 30
minutes. Screen "not run" intervals shall be adjustable over a range of 0 - 120
minutes. It shall be possible to deactivate the timer controls from the
Operator Workstation. It shall be possible to disable all other control
functions at the graphic display and only operate screens based on these
timers.
Automatic operation - differential mode
Differential level across each mechanical screen shall be calculated in the
PLC as seen from these level sensors. Levels shall be expressed as the water
depth from the bottom of the influent channel. Units shall be in feet. A high
level alarm shall be provided in the control program and the alarm limits
shall be adjustable at the Operator Workstation.
Manual operation
When the knob is in Hand and Forward each motor runs continuously
forward. The knobs reverse position shall be spring return type and running
the motors in reverse should be avoided.
Operation and maintenance manual - XS - Fine Screen
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Overload/alarms
- Triggered overload protection, the machine stops and alerts. Must be
confirmed. If operation mode T16 is used, the screen goes into reverse
operation for 1 s and then stops and waits for new start signal. If overload
is triggered more than 2 times in 20 min, the machine stops and alerts.
- At triggered motor protection, the machine stops and alerts. Must be
confirmed.
- Triggered emergency stop, the machine stops and alerts. Must be
confirmed.
- High level, information Alarm only.
Reverse operation
Others
Turn the knob to manual mode by turning the knob to HAND. Turn the
second knob to REVERSE. Avoid reverse operation but in the event the
machine is reverse operated only do so for a short time and under visual
control. Make sure that no noise occurs.
We recommend manual knobs / switches for manual operation option both
forward and reverse for all motors.
Manual operation possibilities close to the machine as well as hand driving
circuit independently of the PLC functionality.
Operation and maintenance manual - XS - Fine Screen 122

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7. Settings
A Control Panel shall be provided by the Screen manufacturer for each fine
screen and compactor and shall include:
a. HAND -OFF -AUTO (H-O-A) selector switch for Screen
b. HAND -OFF -AUTO (H-O-A) selector switch for Compactor
c. RUN indication light for Screen
d. RUN indication light for Compactor
e. FAIL indication alarm for Screen to PLC
f. FAIL indication alarm for Compactor to PLC
g. AUTO status for Screen to PLC
h. AUTO status for Compactor to PLC
i. RUN contact for Screen to PLC
j. RUN contact for Compactor to PLC
k. FAIL contact for Screen to PLC
I. FAIL contact for Compactor to PLC
m. Elapsed RUN TIME meter for Screen (Non-Resettable)
n. Elapsed RUN TIME meter for Compactor (Non-Resettable)
o. Run command for Screen from PLC
p. Run command for Compactor from PLC
Operation and maintenance manual - XS - Fine Screen 23

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WATER TREATMENT
PRODUCTS
8. Start-up
Check the following before taking the machine into operation:
- Support legs are mounted and the screen is properly connected to the
ground.
- Distance between screen and channel wall is sealed.
- Chute between screen and subsequent equipment is installed correctly.
- All electrical connections are made, including level sensor.
- All covers and plates are installed correctly.
- Warning signs are mounted
Test run without water
- Close the inlet gates in front of the screen.
- Start the machine manually in position HAND and FORWARD. Be
prepared to stop immediately if any noise is heard.
- Check the screen rotation, separated solids should be transported
upwards.
- Let the screen run continuously for a while and check the screen
movement and listen for noise.
- Switch to AUTO and check that the screen stops in its home position. At
the home position, the fixed and movable bars shall be in level - a
deviation of few millimetres can be accepted. The home position switch
is adjusted by turning the plastic band placed on the drive shaft.
- Short circuit the level sensor and check that the screen runs one rotation
and then stops in its home position.
- Check that the subsequent equipment starts after the pre-set number of
screen rotations.
Test run with water
Start the screen in position HAND and FORWARD
- Open the inlet gates in the channel or start the inlet pumps gently
increasing the flow slowly. If at start-up, there is a lot of sand and other
settled material, this can block the screen. It may then be necessary to
remove the sludge from the channel in front of the screen or to lift /
swing up the screen a bit so that sand and other settled material is
flushed under the screen.
- Change from HAND to AUTO when the screen runs without problems.
Operation and maintenance manual - XS - Fine Screen

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WATER TREATMENT
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Adjusting the start level
- The level sensor determines the screen start level.
- If there are drawings specifying the water level before the screen, this
shall be used.
- If no specified levels, the level normally should be set as high as possible.
This is to obtain a good separation and minimize operating time and
wear. The level difference before and after the screen should be
between 7.8"-15.75".
PA
STOP
Regular supervision and maintenance
Weekly
For all service the safety regulations must be
followed. It is absolutely forbidden to carry out
service and maintenance work on the machine
while it is running. Main switch must be turned
off and locked with a padlock.
Check that:
- There are no abnormal noises.
- There are no screenings in the transition to subsequent equipment -
clean if necessary.
- Home position is adjusted correctly.
- No screenings stuck between the bars, clean if necessary.
- The bars are free from fat, too much fat can make the screenings roll.
- Nothing's stuck on level sensor.
STOP
Operation and maintenance manual - XS - Fine Screen 125

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Monthly
Yearly
WATER TREATMENT
PRODUCTS
Check that:
- No large accumulations of stones and gravel are found in the channel in
front of the screen.
- Sealings between the screen and the channel wall is intact.
- Screws and bolt connections are tight - tighten if necessary.
- It does not leak oil from the gearbox.
- There is grease in the grease cartridges
Once a year, a thorough review of the machine should be performed.
Put the machine in manual mode and run it until it is emptied. Clean the
machine and make sure that all electrical connections are disconnected.
In addition to the controls for weekly and monthly supervision, also check
the following:
- All bearings.
- The gear box function, change oil if necessary, see attached instructions
from the manufacturer
- Sediment on the channel bottom after the screen.
- Slot width and straightness of the bars, straighten if necessary.
- The distance between the bars.
- Check the lower part of the screen bars - the flap, hinges and springs
- The function of the torque guard
- Check the movement of the screen - make sure that the top of the fixed
bars are aligned with the movable bar package when it is in its home
position. Also make sure that the machine makes a circular motion and
don't flat out at the lower part.
- Any wear on the sprockets.
- Any corrosion on stainless steel parts. Corrosion of stainless steel may
occur as a result of externally occurring rust or coatings, dirt, chemical or
other residues.
- Protective coating on motors, gears and related equipment. Repair any
damage
- Any damage to electrical cables, connectors, cable glands, sealing in
the junction box and similar. Possible damage to be repaired before the
machine is put into operation again.
Operation and maintenance manual - XS - Fine Screen

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WATER TREATMENT
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Life span of wear parts depends on the machines working load, the amount
of sand and gravel, etc.
Before operating the machine, all protection covers of the machine must
be reinstalled.
Operation and maintenance manual - XS - Fine Screen 27

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WATER TREATMENT
PRODUCTS
10. Disassembly
Before reading this section, it is important to you - to ensure your safety -
read and understand the entire Section 2 "Safety".
Before starting the disassembly
- Turn off the automatic operation (AUTO) on the screen and connecting
equipment
Put the screen in manual mode and run until the machine is free from
screenings.
- Clean the machine
Disassembly
Disposal
- Disconnect all electrical connections and cables. Follow the instructions
in the section on electrical installation.
- Remove covers and plates.
- If necessary disassemble chutes to screenings handling equipment.
- Connect the lifting device as instructed in the section on lifting
- Remove the support legs
- Gently lift the screen up from the channel and check that the screen is
not damaged against the channel.
We recommend that all parts of the machine is dismantled and carted
away by the supplier.
All parts should be re -used in appropriate way and disposal of consumables
such as oil shall be in accordance with applicable regulations.
Operation and maintenance manual - XS - Fine Screen 28

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WATER TREATMENT
PRODUCTS
26 28
32 31 27 1
C17 (23
25
33 Beam
498Typ,
8
32 Evacuation pipe
Vent,slos
24
14
31 Cover
284
30 Coverbeanng
1011
C
29 Coverbeanng
1010
9
28 Linkage system for supports
308
27 Linkage system for supports
308
6
26 Plastic cover
60x60
10
25 Discharge access cover
1039Typ,
24 Beam
)x606Langd,
6
23 Distance nut
982
20 Handle
NM130-120-M6
8
19 Cover
841 Typ,
18 Cover
390
17 DlsahargePid
426Typ,
20
p.
16 Positioning spacer
199Typ:
IS Intermediate spacer
101
14 Discharge dead
884
13 Movable bar
907
12
12 Blzedbar
908
o
p
II Inner barflzingchannel-
564Typ,
movable
3 0
10 Outer barfizingchannel-
563Typ,
Q
Q
movable
i
9 Innerbarflzingchannel - fixed
226Typ,
8 Outer barfizingchannel -flzed
225Typ,
9
�33 ( S 7 1S
13 2 11
7 Side plate
6 Insp0onPid
1042
BSTp,
U
S Movable rossm ember
186Typ,
4 Blzedarossmember
185Typ,
3 Side plate
1042
2 Bottom lap
773Typ,
I Power chain housing
1020Typ,
XS1900
bp. �S�are parts drawing ?r� lust o spa
era l n and aln enance ma a - - UP
cr en 129

WATER TREATMENT
PRODUCTS
Operation and maintenance manual - XS - Fine Screen 30

WATER TREATMENT
PRODUCTS
Operation and maintenance manual - XS - Fine Screen 31

WATER TREATMENT
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Operation and maintenance manual - XS - Fine Screen 32

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Operation and maintenance manual - XS - Fine Screen 133

WATER TREATMENT
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Operation and maintenance manual - XS - Fine Screen 134

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
November 16, 2021
DONALD I. MCREE, JR. — COUNTY MANAGER
OCEAN SANDS WATER AND SEWER DISTRICT
153 COURTHOUSE ROAD — SUITE 302
CURRITUCK, NORTH CAROLINA 27929
Subject: Permit No. WQ0000185
Ocean Sands WWTP
High -Rate Infiltration System
Currituck County
Dear Mr. McRee:
In accordance with your permit minor modification request received August 16, 2021, and
subsequent additional information received November 3, 2021, we are forwarding herewith Permit No.
WQ0000185 dated November 16, 2021, to the Ocean Sands Water and Sewer District for the construction
and operation of the modified wastewater treatment facilities, as well as the continued operation of the
existing wastewater treatment and high -rate infiltration facilities.
The following modifications to the subject permit are as follows: The installation of two blower
and aeration systems to serve the Phase II and Phase III sludge holding tanks for odor control.
This permit shall be effective from the date of issuance through June 30, 2024, shall void Permit
No. WQ0000185 issued August 4, 2020, and shall be subject to the conditions and limitations therein. The
Permittee shall submit a renewal application no later than January 2, 2024.
Please pay attention to the monitoring requirements listed Attachments A, B, and C for they may
differ from the previous permit issuance. Failure to establish an adequate system for collecting and
maintaining the required operational information shall result in future compliance problems.
The Division has removed the following permit conditions since the last permit issuance dated
August 4, 2020:
➢ Old Condition I.1—This condition was met for the Phase I modifications.
➢ Old Condition L2 — This condition was met for the Phase I modifications.
➢ Old Condition L3 —This condition was met for the Phase I modifications.
ME ��� North Carolina Department of Environmental Quality i Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH CAROLINA
©eca.. or 919,707,9000

Mr. Donald I. McRee, Jr.
November 16, 2021
Page 2 of 2
The following permit conditions are new since the last permit issuance dated August 4, 2020:
➢ Condition I.1—This condition requires the Permittee to submit an engineering certification for
the permitted modifications.
➢ Condition L2 — This condition requires the Permittee to notify the Washington Regional Office
prior to start-up of the permitted modifications so that the Division can conduct a startup
inspection.
➢ Condition L3 — This condition requires the Permittee to submit a final operation and
maintenance plan meeting the requirements of 15A NCAC 02T .0707(a) prior to operating the
modified facilities.
If any parts, requirements, or limitations contained in this permit are unacceptable, the Permittee
has the right to request an adjudicatory hearing upon written request within 30 days following receipt of
this permit. This request shall be in the form of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail Service
Center, Raleigh, NC 27699-6714. Otherwise, this permit shall be final and binding.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this permit, please contact Lauren Raup-Plummer at [phone] or
lauren.plummerkncdenr. gov.
Sincerely,
7L,�ir�ez �T
S. Daniel Smith, Director
Division of Water Resources
cc: Currituck County Health Department (Electronic Copy)
Washington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Eric Weatherly, PE — Currituck County (Electronic Copy)
Laserfiche File (Electronic Copy)
Digital Permit Archive (Electronic Copy)

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
RALEIGH
HIGH -RATE INFILTRATION 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
Ocean Sands Water and Sewer District
Currituck County
FOR THE
operation of a 600,000 gallon per day (GPD) wastewater treatment and high -rate infiltration facility
consisting of the:
construction and operation of an odor control system for the Phase II and Phase III sludge holding tanks
consisting of. two 15 horsepower (hp) blowers with 48 diffusers per tank (a total of 192 diffusers); and all
associated piping, valves, controls, and appurtenances; the
continued operation of a 200,000 GPD Phase I Amphidrome wastewater treatment facility consisting of. a
600,000 GPD flow equalization basin; a 3.8 million gallon per day (MGD) channel grinder; a 5.5 MGD
fine screen; a manual bar screen; three 50,000 gallon FEQ chambers; a 47,285 gallon primary clarifier; a
27,000 gallon main reactor dosing tank; four 13,990 gallon main submerged attached -growth bioreactors
(SAGB); a 7,000 gallon secondary SAGB; a 20,000 gallon and an 11,883 gallon clearwell unit; a 55 gallon
chlorination tank; an electric -pulse pump; a 36,550 gallon and a 39,859 gallon sludge holding tank equipped
with a 15 hp blower and 48 diffusers per tank; a flowmeter; an auxiliary generator; an all associated piping,
valves, controls, and appurtenances; the
continued operation of a 400,000 GPD Phase II and Phase III Amphidrome wastewater treatment facility
consisting of. two 47,285 gallon primary clarifiers with four 1 hp solids removal pumps; a 35,208 main
reactor dosing tank with eight 7.5 hp dosing pumps; a 49,424 gallon mudwell with four 1 hp solids removal
pumps and two 7.5 hp return pumps; eight 55,954 gallon main SAGB, two 20,000 gallon clearwells and
one 24,684 gallon clearwell with sixteen 6 hp backwash pumps, four 3 hp secondary reactor dosing pumps,
and four 3.8 hp secondary reactor backwash pumps; two 6,986 gallon secondary SAGB; one 55 gallon
chlorination plastic drum tank; an electric pulse pump; two 36,550 gallon sludge holding tanks with a 0.5
hp decant pump; two 39,859 gallon holding tanks; 20 chemical feed pumps; six 30 hp blowers; an effluent
flowmeter; a final dosing chamber with a 16,667 gallon working -volume; two 9.5 hp final dosing pumps;
a 759 kilovolt -amp (kVa) generator; and all associated piping, valves, controls, and appurtenances; the
continued operation of a 600,000 GPD high -rate infiltration facility consisting of. a 2.41 acre high -rate
infiltration field with 118 spray irrigation heads served by two 15 hp submersible dosing pumps; and all
associated piping, valves, controls, and appurtenances; and the
WQ0000185 Version 3.6 Shell Version 200201 Page 1 of 11

continued operation of a groundwater lowering system consisting of a series of trenches; a pump station
located in the northeastern corner of the site that conveys groundwater from the groundwater lowering
system to an unnamed tributary into Currituck Sound; and all associated piping, valves, controls, and
appurtenances
to serve the Ocean Sands WWTP, with no discharge of wastes to surface waters, pursuant to the application
received August 16, 2021, subsequent additional information received November 3, 2021, and in
conformity with the Division -approved plans and specifications considered a part of this permit.
This permit shall be effective from the date of issuance through June 30, 2024, shall void Permit No.
WQ0000185 issued August 4, 2020, and shall be subject to the following conditions and limitations:
I. SCHEDULES
Upon completion of construction and prior to operation of the permitted modifications, the Permittee
shall submit an engineering certification from a North Carolina licensed Professional Engineer
certifying that the permitted facility has been constructed in accordance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and
specifications. For phased and partially certified facilities, the Permittee shall retain the responsibility
to track further construction approved under this permit, and shall provide a final engineering
certification upon project completion. Mail the Engineering Certification to the Division of Water
Resources, Non -Discharge Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non-
Discharge.Reportskncdenr.gov. [15A NCAC 02T .0116(a)]
2. The Permittee shall notify the Washington Regional Office, telephone number [phone], at least
two business days in advance of initial operation of the constructed facilities so that the Division can
conduct a startup inspection. [15A NCAC 02T .0108(b)(1)(B)]
3. Prior to operation of the modified facilities, a Final Operation and Maintenance Plan shall be submitted
for review. The plan shall be sent to the Division of Water Resources, Non -Discharge Branch, 1617
Mail Service Center, Raleigh, NC 27699-1617 or Non-Discharge.Reportskncdenr.gov. [15A NCAC
02T .0108(b)(1)(B), 02T .0707(a)]
4. The Permittee shall request renewal of this permit on Division -approved forms no later than January 2,
2024. [15A NCAC 02T .0105(b), 02T .0109]
WQ0000185 Version 3.6 Shell Version 200201 Page 2 of 11

IL PERFORMANCE STANDARDS
1. The Permittee shall maintain and operate the subject non -discharge facilities so there is no discharge to
surface waters, nor any contravention of groundwater or surface water standards. In the event the
facilities fail to perform satisfactorily, including the creation of nuisance conditions due to improper
operation and maintenance, or failure of the infiltration areas to assimilate the effluent, the Permittee
shall take immediate corrective actions, including Division required actions, such as the construction
of additional or replacement wastewater treatment or disposal facilities. [15A NCAC 02T
.0108(b)(1)(A)]
2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or surface
water resulting from the operation of this facility. [15A NCAC 02T .0108(b)(1)(A)]
3. Groundwater monitoring wells shall be constructed in accordance with 15A NCAC 02C .0108
(Standards of Construction for Wells Other than Water Supply), and any other jurisdictional laws and
regulations pertaining to well construction. [15A NCAC 02C .0108]
4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T .0705(b)]
5. Application rates, whether hydraulic, nutrient, or other pollutant, shall not exceed those specified in
Attachment B. [15A NCAC 02T .0705(m)]
6. High -rate infiltration sites permitted on or after December 30, 1983 have a compliance boundary that
is either 250 feet from the infiltration area, or 50 feet within the property boundary, whichever is closest
to the infiltration area. Any exceedance of groundwater standards at or beyond the compliance
boundary shall require corrective action. Division -approved relocation of the compliance boundary
shall be noted in Attachment B. Multiple contiguous properties under common ownership and
permitted for use as a disposal system shall be treated as a single property with regard to determination
of a compliance boundary. [15A NCAC 02L .0106(d)(2), 02L .0107(b), 02T .0105(h), G.S. 143-
215.1(1), G.S. 143-215.1(k)]
7. The review boundary is midway between the compliance boundary and the infiltration area. Any
exceedance of groundwater standards at or beyond the review boundary shall require preventative
action. [15A NCAC 02L .0106(d)(1), 02L .0108]
8. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to
any sale or transfer of property affecting a compliance boundary (i.e., parcel subdivision). [ 15A NCAC
02L .0107(c)]
9. No wells, excluding Division -approved monitoring wells, shall be constructed within the compliance
boundary except as provided for in 15A NCAC 02L .0107(g). [15A NCAC 02L .0107]
10. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is
not the Permittee and owns land within the compliance boundary shall execute and file with the
Currituck County Register of Deeds an easement running with the land containing the following items:
a. A notice of the permit and number or other description as allowed in 15A NCAC 02L .0107(f)(1);
b. Prohibits construction and operation of water supply wells within the compliance boundary; and
c. Reserves the right of the Permittee or the State to enter the property within the compliance boundary
for purposes related to the permit.
The Director may terminate the easement when its purpose has been fulfilled or is no longer needed.
[I5A NCAC 02L .0107(f)]
WQ0000185 Version 3.6 Shell Version 200201 Page 3 of 11

11. The facilities herein were permitted per the following setbacks:
a. The infiltration sites were modified February 18, 2002. The setbacks for infiltration sites originally
permitted or modified from February 1, 1993 to September 1, 2006 are as follows (all distances in
feet):
b.
i. Each private or public water supply source:
100
ii. Surface waters:
200
ill. Groundwater lowering ditches:
200
iv. Surface water diversions (upslope):
200
v. Surface water diversions (downslope):
200
vi. Each well with exception of monitoring wells:
100
vii. Each property line:
50 1
viii. Top of slope of embankments or cuts of two feet or more in vertical height:
100
ix. Each water line:
10
x. Each swimming pool:
100
xi. Public right of way:
50
xii. Nitrification field:
20
xiii. Each building foundation or basement:
15
' Setbacks to property lines are not applicable when the Permittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
[15A NCAC 02H .02190)(5)]
The Phase I Amphidrome treatment unit was permitted May 29, 2015, and the Phase II and III
Amphidrome treatment units were permitted July 17, 2017. The setbacks for storage and treatment
units originally permitted or modified from September 1, 2006 to August 32, 2018 are as follows
(all distances in feet):
i. Each habitable residence or place of assembly under separate ownership: 1001
ii. Each private or public water supply source: 100
iii. Surface waters: 50
iv. Each well with exception of monitoring wells: 100
v. Each property line: 50 2, 3
' Habitable residences or places of assembly under separate ownership constructed after the
facilities herein were originally permitted or subsequently modified are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
3 Per a settlement agreement recorded in the Currituck County Register of Deeds, reduced
setbacks from the storage and treatment units to any property line are as follows:
Parcel No.
Deed Book / Page
Setback
Easement
Open spaces on
previously recorded
plats Sections D, E, F,
230 / 600
0 feet
50 feet
H, I, J, K, L, N, P, Q,
R, and G.
[15A NCAC 02T .0706(d), 02T .0706(e), 02T .0706(f), 02T .0706(g)]
WQ0000185 Version 3.6 Shell Version 200201 Page 4 of 11

III. OPERATION AND MAINTENANCE REOUIREMENTS
1. The Permittee shall operate and maintain the subject facilities as anon -discharge system. [15A NCAC
02T .0700]
2. The Permittee shall maintain an Operation and Maintenance Plan, which shall include operational
functions, maintenance schedules, safety measures, and a spill response plan. [15A NCAC 02T
.0707(a)]
3. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, the Permittee shall designate and employ a certified
operator in responsible charge (ORC), and one or more certified operators as back-up ORCs. The ORC
or their back-up shall operate and visit the facilities as required by the WPCSOCC. [15A NCAC 02T
.0117]
4. The Permittee shall take measures to prevent effluent ponding in or runoff from the infiltration sites
listed in Attachment B. [15A NCAC 02T .0707(c)]
5. Infiltration equipment shall be tested and calibrated once per permit cycle. [15A NCAC 02T .0707(d)]
6. Only treated effluent from the Ocean Sands WWTP shall be infiltrated on the sites listed in Attachment
B. [15A NCAC 02T .0701]
7. The Permittee shall not allow vehicles or heavy machinery on the infiltration area, except during
equipment installation or maintenance activities. [15A NCAC 02T .0707(e)]
8. The Permittee shall prohibit public access to the wastewater treatment, storage, and infiltration
facilities. [15A NCAC 02T .0705(p)]
9. The Permittee shall dispose or utilize generated residuals in a Division -approved manner. [15A NCAC
02T .0708, 02T .I 100].
10. The Permittee shall not divert or bypass untreated or partially treated wastewater from the subject
facilities. [15A NCAC 02T .0705(i)]
11. A protective vegetative cover shall be established and maintained on all berms, pipe runs, erosion
control areas, surface water diversions, and earthen embankments (i.e., outside toe of embankment to
maximum allowable temporary storage elevation on the inside of the embankment). Trees, shrubs, and
other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen
embankments shall be kept mowed or otherwise controlled and accessible. [15A NCAC 02T .0707(g)]
12. Metering equipment shall be tested and calibrated annually. [15A NCAC 02T .0707(d)]
13. An automatically activated standby power source capable of powering all essential treatment units shall
be on site and operational at all times. If a generator is employed as an alternate power supply, it shall
be tested weekly by interrupting the primary power source. [15A NCAC 02T .0705(k)]
14. The infiltration areas shall be cleaned at least once per permit cycle to remove deposited materials that
may impede the infiltration process. Cleaning records shall be maintained at the facility for five years,
and shall be made available to the Division upon request. The Washington Regional Office, telephone
number [phone], shall be notified prior to each cleaning. [15A NCAC 02T .0707(h)]
WQ0000185 Version 3.6 Shell Version 200201 Page 5 of 11

IV. MONITORING AND REPORTING REQUIREMENTS
The Permittee shall conduct and report any Division required monitoring necessary to evaluate this
facility's impact on groundwater and surface water. [15A NCAC 02T .0108(c)]
2. A Division -certified laboratory shall conduct all analyses for the required effluent, groundwater, and
surface water parameters. [15A NCAC 02H .0800]
3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be
reported on Form NDMR. Facilities with a permitted flow less than 10,000 GPD may estimate their
flow from water usage records provided the water source is metered. [15A NCAC 02T .0105(k), 02T
.0108(c)]
4. The Permittee shall monitor the treated effluent at the frequencies and locations for the parameters
specified in Attachment A. [15A NCAC 02T .0108(c)]
5. The Permittee shall maintain records tracking the amount of effluent infiltrated. These records shall
include the following information for each infiltration site listed in Attachment B:
a. Date of infiltration;
b. Volume of effluent infiltrated;
c. Site infiltrated;
d. Length of time site is infiltrated;
e. Loading rates to each infiltration site listed in Attachment B; and
f. Weather conditions.
[15A NCAC 02T .0108(c)]
6. Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Form NDMR for
each PPI and three copies of all operation and disposal records (as specified in Condition IV.S.) on
Form NDAR-2 for every site in Attachment B shall be submitted on or before the last day of the
following month. If no activities occurred during the monitoring month, monitoring reports are still
required documenting the absence of the activity. All information shall be submitted to the following
address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[15A NCAC 02T .0105(1)]
7. Pursuant to G.S. 143-215.1C(a), the Permittee shall provide to its users and the Division of Water
Resources an annual report summarizing the performance of the wastewater treatment and high -rate
infiltration facility and the extent to which the facility has violated this permit, or federal or State laws,
regulations, or rules related to the protection of water quality. This report shall be prepared on either a
calendar or fiscal year basis and shall be provided no later than 60 days after the end of the calendar or
fiscal year. Two copies of the annual report provided to the Permittee's users shall be submitted to:
Division of Water Resources
Water Quality Permitting Section
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[G. S. 143-215.1 C(a)]
WQ0000185 Version 3.6 Shell Version 200201 Page 6 of 11

8. The Permittee shall maintain a record of all residuals removed from this facility. This record shall be
maintained for five years, and shall be made available to the Division upon request. This record shall
include:
a. Name of the residuals hauler;
b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality
agreeing to accept the residuals;
c. Date the residuals were hauled; and
d. Volume of residuals removed.
[15A NCAC 02T .0708(b)]
9. A maintenance log shall be kept at this facility. This log shall be maintained for five years, and shall
be made available to the Division upon request. This log shall include:
a. Date of flow measurement device calibration;
b. Date of infiltration equipment calibration;
c. Date and results of power interruption testing on alternate power supply;
d. Visual observations of the plant and plant site; and
e. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections
and cleanings, etc.).
[15A NCAC 02T .0707(i)]
10. Monitoring wells MW-4, MW-5, MW-6, MW-7, and MW-9 shall be sampled at the frequencies and
for the parameters specified in Attachment C. All mapping, well construction forms, well abandonment
forms and monitoring data shall refer to the permit number and the well nomenclature as provided in
Attachment C and Figure 1. [15A NCAC 02T .0105(m)]
11. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance
Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the last
working day of the month following the sampling month. The Compliance Monitoring Form (GW-59)
shall include this permit number, the appropriate well identification number, and one GW-59a
certification form shall be submitted with each set of sampling results. All information shall be
submitted to the following address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[15A NCAC 02T .0105(m)]
WQ0000185 Version 3.6 Shell Version 200201 Page 7 of 11

12. Noncompliance Notification:
The Permittee shall report to the Washington Regional Office, telephone number [phone],
within 24 hours of first knowledge of the following:
a. Treatment of wastes abnormal in quantity or characteristic, including the known passage of a
hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.) rendering the facility incapable of
adequate wastewater treatment.
c. Any facility failure resulting in a discharge to surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Ponding in or runoff from the infiltration sites.
Emergencies requiring reporting outside normal business hours shall call the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone]. All
noncompliance notifications shall file a written report to the Washington Regional Office within five
days of first knowledge of the occurrence, and this report shall outline the actions proposed or taken to
ensure the problem does not recur. [15A NCAC 02T .0108(b)(1)(A)]
V. INSPECTIONS
1. The Permittee shall perform inspections and maintenance to ensure proper operation of the wastewater
treatment and infiltration facilities. [15A NCAC 02T .07070)]
2. The Permittee shall inspect the wastewater treatment and infiltration facilities to prevent malfunctions,
facility deterioration, and operator errors that may result in discharges of wastes to the environment,
threats to human health, or public nuisances. The Permittee shall maintain an inspection log that
includes the date and time of inspection, observations made, and maintenance, repairs, or corrective
actions taken. The Permittee shall maintain this inspection log for a period of five years from the date
of the inspection, and this log shall be made available to the Division upon request. [15A NCAC 02T
.0707(1), 02T .07070)]
3. Division authorized representatives may, upon presentation of credentials, enter and inspect any
property, premises, or place related to the wastewater treatment and infiltration facilities permitted
herein at any reasonable time for determining compliance with this permit. Division authorized
representatives may inspect or copy records maintained under the terms and conditions of this permit,
and may collect groundwater, surface water, or leachate samples. [G.S. 143-215.3(a)(2)]
WQ0000185 Version 3.6 Shell Version 200201 Page 8 of 11

VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to a
Division enforcement action. [G.S. 143-215.6A, 143-215.613, 143-215.6C]
2. This permit is effective only with respect to the nature and volume of wastes described in the permit
application, and Division -approved plans and specifications. [G.S. 143-215.1(d)]
3. Unless specifically requested and approved in this permit, there are no variances to administrative codes
or general statutes governing the construction or operation of the facilities permitted herein. [15A
NCAC 02T .0105(n)]
4. The issuance of this permit does not exempt the Permittee from complying with all statutes, rules,
regulations, or ordinances that other jurisdictional government agencies (e.g., local, state, and federal)
may require. [15A NCAC 02T .0105(c)(6)]
5. If the permitted facilities change ownership, or the Penmittee changes their name, the Permittee shall
submit a permit modification request on Division -approved forms. The Permittee shall comply with
all terms and conditions of this permit until the permit is transferred to the successor -owner. [G.S. 143-
215.1(d3)]
6. The Permittee shall retain a set of Division -approved plans and specifications for the life of the facilities
permitted herein. [15A NCAC 02T .0105(o)]
7. The Permittee shall maintain this permit until the proper closure of all facilities permitted herein, or
until the facilities permitted herein are permitted by another authority. [15A NCAC 02T .01050)]
8. This permit is subject to revocation or modification upon 60-day notice from the Division Director, in
whole or part for:
a. violation of any terms or conditions of this permit or Administrative Code Title 15A Subchapter
02T;
b. obtaining a permit by misrepresentation or failure to disclose all relevant facts;
c. the Permittee's refusal to allow authorized Department employees upon presentation of credentials:
I. to enter the Permittee's premises where a system is located or where any records are required
to be kept;
ii. to have access to any permit required documents and records;
iii. to inspect any monitoring equipment or method as required in this permit; or
iv. to sample any pollutants;
d. the Permittee's failure to pay the annual fee for administering and compliance monitoring; or
e. a Division determination that the conditions of this permit are in conflict with North Carolina
Administrative Code or General Statutes.
[15A NCAC 02T .0110]
WQ0000185 Version 3.6 Shell Version 200201 Page 9 of 11

9. Unless the Division Director grants a variance, expansion of the facilities permitted herein shall not
occur if any of the following apply:
a. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has been convicted of
environmental crimes under G.S. 143-215.6B, or under Federal law that would otherwise be
prosecuted under G.S. 143-215.6B, and all appeals of this conviction have been abandoned or
exhausted.
b. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has previously abandoned
a wastewater treatment facility without properly closing the facility.
c. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid a civil
penalty, and all appeals of this penalty have been abandoned or exhausted.
d. The Permittee or any parent, subsidiary, or other affiliate of the Permittee is currently not compliant
with any compliance schedule in a permit, settlement agreement, or order.
e. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid an annual
fee.
[15A NCAC 02T .0120(b), 02T .0120(d)]
10. This permit shall not be renewed if the Permittee or any affiliation has not paid the required annual fee.
[15A NCAC 02T .0120(c)]
Permit issued this the 16'h day of November 2021
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0000185
WQ0000185 Version 3.6 Shell Version 200201 Page 10 of 11

Permit No. WQ0000185 High -Rate Infiltration System
Ocean Sands Water and Sewer District November 16, 2021
Ocean Sands WWTP Currituck County
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
I, , as a duly licensed North Carolina Professional
Engineer, having ❑ periodically / ❑ fully observed the construction of the permitted facilities, do hereby
state to the best of my abilities that the facility was constructed in compliance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and
specifications.
Documentation of any variation to this permit, and the Division -approved plans and specifications, is in the
attached as -built drawings.
Description of variations:
Professional Engineer's Name
Firm Name
Firm No.
Address
City JL
State
Zip Code
Telephone
Email
Seal, Signature, and Date
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
DOCUMENTATION, SHALL BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
NON -DISCHARGE BRANCH
By U.S. Postal Service By Courier/Special DelivM
1617 MAIL SERVICE CENTER 512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604
WQ0000185 Version 3.6 Shell Version 200201 Page 11 of 11

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ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001— WWTP Effluent
Permit Number: WQ0000185 Version: 3.6
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
PCs
Code
Parameter Description
Units of
Measure
Monthly
Average
Monthly Daily Minimum Daily Maximum
Geometric Mean
Measurement
Frequency
Sample
Type
00310
BOD, 5-Day (20 °C)
mg/L
10
Ew-
2 x Week
Composite
00940
Chloride (as Cl)
mg/L
3 x Year'
Composite
50060
Chlorine, Total Residual
mg/L
5 x Week
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
14
2 x Week
Grab
50050
Flow, in Conduit or thru Treatment Plant
GPD
600,000
Continuous
Recorder
00610
Nitrogen, Ammonia Total (as N)
mg/L
4
2 x Week
Composite
00625
Nitrogen, Kjeldahl, Total (as N)
mg/L
2 x Week
Composite
00620
Nitrogen, Nitrate Total (as N)
mg/L
10
2 x Week
Composite
00600
Nitrogen, Total (as N)
mg/L
2 x Week
Composite
00400
pH
su
5 x Week
Grab
00665
Phosphorus, Total (as P)
mg/L
2 x Week
Composite
70300
Solids, Total Dissolved — 180 °C
mg/L
3 x Year'
Composite
00530
Solids, Total Suspended
mg/L
15
2 x Week
Composite
1. 3 x Year monitoring shall be conducted in March, July, and November.
WQ0000185 Version 3.6 Attachment A Page 1 of 2

PPI 002 — Surface Water Monitoring of Groundwater Lowering System (36.323611°,-75.816389°)
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
PCs
Code
Parameter Description
Units of
Measure
Monthly
Average
Monthly Daily Minimum Daily Maximum
Geometric Mean
Measurement
Frequency
Sample
Type
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
Monthly
Grab
50050
Flow, in Conduit or thru Treatment Plant
GPD
Continuous
Recorder
00610
Nitrogen, Ammonia Total (as N)
mg/L
Monthly
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
Monthly
Grab
00665
Phosphorus, Total (as P)
mg/L
Monthly
Grab
1. Flow shall be monitored via the existing variable area velocity flow meter inside the discharge pipe at the groundwater pump station.
WQ0000185 Version 3.6 Attachment A Page 2 of 2

ATTACHMENT B — APPROVED LAND APPLICATION SITES AND LIMITATIONS
Ocean Sands Water and Sewer District — Ocean Sands WWTP
Permit Number: WQ0000185 Version: 3.6
INFILTRATION AREA INFORMATION
APPLICATION LIMITATIONS
Net
Dominant
Site
Owner
County
Latitude
Longitude
Parameter
Rate
Units
Acreage
Soil Series
1
Ocean Sands Water and Sewer
Currituck
36.322990'
-75.814016'
2.41
NhC
0 12 84 — Non -Discharge Application Rate
7.65
GPD/ft2
District
rTotals
2.41
WQ0000185 Version 3.6 Attachment B Page 1 of 1

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ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring Wells: MW-4, MW-5, MW-6, MW-7, and MW-9
Permit Number: WQ0000185 Version: 3.6
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00680
Carbon, Tot Organic (TOC)
mg/L
Monthly
Grab
5
00940
Chloride (as Cl)
250
mg/L
Monthly
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
Monthly
Grab
00610
Nitrogen, Ammonia Total (as N)
1.5
mg/L
Monthly
Grab
00620
Nitrogen, Nitrate Total (as N)
10
mg/L
Monthly
Grab
00400
pH
6.5-8.5
su
Monthly
Grab
1
00665
Phosphorus, Total (as P)
mg/L
Monthly
Grab
70300
Solids, Total Dissolved - 180 °C
500
mg/L
Monthly
Grab
GWVOC
Volatile Compounds (GW)
Present: Yes/No
Annually?
Grab
3, 4, 5
82546
Water Level, Distance from measuring point
feet
Monthly
Calculated
1,2
1. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement of
pH shall be made after purging and prior to sampling for the remaining parameters.
2. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top of
casing) of all monitoring wells shall be surveyed relative to a common datum.
3. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
a. Standard Method 6230D, PQL at 0.5 gg/L or less
b. Standard Method 621 OD, PQL at 0.5 gg/L or less
c. EPA Method 8021, Low Concentration, PQL at 0.5 gg/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 gg/L or less
e. Another method with prior approval by the Water Quality Permitting Section Chief
Any method used shall meet the following qualifications:
a. A laboratory shall be DWR certified to run any method used.
b. The method used shall include all the constituents listed in Table VIII of Standard Method 6230D.
c. The method used shall provide a PQL of 0.5 gg/L or less that shall be supported by laboratory proficiency studies as required by the DWR Laboratory Certification Unit. Any constituents
detected above the MDL but below the PQL of 0.5 gg/L shall be qualified (estimated) and reported.
4. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Washington Regional Office supervisor, telephone number [phone],
shall be contacted immediately for further instructions regarding any additional follow-up analyses required.
5. If TOC concentrations greater than 10 mg/L are detected in any downgradient monitoring well, additional sampling and analysis shall be conducted to identify the individual constituents comprising
this TOC concentration. If the TOC concentration as measured in the background 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.
6. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure 1 and this attachment.
7. Annual monitoring shall occur in November.
WQ0000185 Version 3.6 Attachment C Page 1 of 1

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