C04 Attachment 7 ADEQ-Capacity Assurance (Sewage Collection System).pdf
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- Solicitation number
- 127EAX26Q0049
- Issued by
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Department of Agriculture Forest Service
About this file
This is an Engineering Review Capacity Assurance form issued by the Arizona Department of Environmental Quality (ADEQ) for sewage collection systems, revised December 6, 2011.
The form must be completed and submitted by the owner or operator of a downstream sewage collection system to comply with Arizona Administrative Code R18-9-E301(C)(1), accompanying a Notice of Intent to Discharge (NOI) for proposed systems. The form requires completion of five sections: Project Information, requesting the project name, base design flow in MGD (calculated per AAC R18-9-E301(D)(1)(a) without peaking factors), and maximum sewage flows in MGD (calculated with applicable peaking factors per AAC R18-9-E301(D)(1)(b)); Downstream Sewage Collection System Capacity, documenting available capacity and total approved upstream flow, with attachment of a capacity calculation location map; Owner/Operator Information, identifying the responsible person authorized by the utility owner to make capacity commitments; Construction Schedule for Additional Capacity, required when downstream systems lack issued Discharge Authorization (Construction Authorization valid for two years); and Capacity Assurance Certification, signed by the responsible person affirming the downstream system can maintain performance standards for increased flow. ADEQ reserves the right to require updated forms when existing forms exceed six months old or capacity concerns arise. Once capacity is allocated, it cannot be rescinded if permits are in process, Construction Authorizations exist, construction has commenced, or real estate has been sold following subdivision sanitary facilities approval.
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REVISED DECEMBER 6, 2011 PAGE 1 OF 2
ENGINEERING REVIEW
CAPACITY ASSURANCE
SEWAGE COLLECTION SYSTEM
1110 WEST WASHINGTON, PHOENIX, AZ 85007
INSTRUCTIONS - CAPACITY ASSURANCE SEWAGE COLLECTION SYSTEM
Instructions: The owner or operator of the downstream sewage collection system must complete and submit this Capacity Assurance Form to comply with Arizona Administrative Code (AAC) R18-9-E301(C)(1). This form should be submitted with the Notice of Intent to Discharge (NOI) for the proposed system. ADEQ reserves the right to require new capacity assurance forms when the forms on file for a project is more that 6 months old or ADEQ has reason to be concerned with the wastewater treatment plant’s capacity (i.e. if for example many Capacity Assurance forms for the same wastewater treatment plant are submitted within a short time period). All fields must be filled out when required for the form to be administratively complete.
Project Name should match the project name listed on the NOI for which this form is being submitted.
Base Design Flow is the design flow for the project and it must be the same as the design flow listed on the NOI. It must be calculated in accordance with AAC R18-9-E301 (D)(1)(a) and does not include a peaking factor. The design flow is determined at the downstream point of the proposed project and the “Sewage Design Flow per Applicable Unit” in Table 1.
Maximum Sewage Flow is calculated using the Base Design Flow and the applicable peaking factor in accordance with AAC R18-9- E301 (D)(1)(b).
Available Capacity is the additional capacity in the sewage collection system available for this and other projects and it is based on Design Flow per Applicable Unit” in Table 1 and allocated capacity commitments. The Available Capacity should be calculated at the point between the point of connection for the project for which the form is being submitted and the wastewater treatment plant where additional flow will cause the greatest constraints on the existing infrastructure. The Available Capacity must be based on “maximum sewage flows”. Please be advised that “any point in the sewer main when flowing full must accommodate peak wet weather flow” per AAC R18-9-E301 (D)(1)(b) . A map of the location of the point selected and the rationale for its selection should also be attached.
Total flow Approved Upstream From the Point of Connection is the flow from the existing sewage collection system upstream from the point where the proposed project will connect and it is based on Design Flow per Applicable Unit” in Table 1 and allocated capacity commitments. Dry weather peak factors should be incorporated based on the total upstream population in accordance with AAC R18-9- E301 (D)(1)(b).
Responsible Person is the owner or operator of the facility and should be the person who signs the form in section 5. The Responsible Person must be authorized by the owner of the utility to make capacity commitments.
Construction Schedule For Additional Capacity When a downstream sewage collection system is being built, ADEQ will issue a Construction Authorization and the upstream sewage collection system projects may be built “at risk” if a Construction Authorization has been approved for the downstream systems. However, a Discharge Authorization will not be issued for the (upstream) project unless the Discharge Authorization has been issued for the downstream sewage collection system.
A detailed schedule must be provided when the Discharge Authorization has not been issued for the downstream sewage collection system in order for ADEQ to issue a Construction Authorization for the upstream project. A Construction Authorization is good for two years. The schedule must demonstrate that the downstream sewage collection system will be build and its Discharge Authorization will be issued within two years. Please be advised when the Construction Schedule is required, new Capacity Assurance forms must be submitted prior to ADEQ issuing a Discharge Authorization
Capacity Assurance Certification The Responsible Person must sign the form issuing capacity for the project in accordance with the base design flow listed in section 1 of this form. Please be advised when capacity is allocated for a project, it is not necessarily possible to rescind that capacity and that capacity cannot be rescinded when a permit is in process, or there is an unexpired Construction Authorization issued for the project. Furthermore, capacity cannot be rescinded if the sewage collection system has been built or construction on the sewage collection system has started. In addition, capacity cannot be rescinded if lots or real estate have been sold as a result of an “Approval of Sanitary Facilities for Subdivisions” that was associated with the NOI for which the capacity assurance was issued. An “Approval of Sanitary Facilities for Subdivisions” can be issued when a Construction Authorization for an associated project is approved.
REVISED DECEMBER 6, 2011 PAGE 2 OF 2
1110 WEST WASHINGTON, PHOENIX, AZ 85007
ENGINEERING REVIEW
CAPACITY ASSURANCE
SEWAGE COLLECTION SYSTEM
1 PROJECT INFORMATION
Project Name:
Base Design Flow (AAC R18-9-E301 (D)(1)(a)): (MGD)
Maximum Sewage Flows (AAC R18-9-E301 (D)(1)(b)): (MGD)
2 DOWN STREAM SEWAGE COLLECTION SYSTEM CAPACITY
Available Capacity: (MGD)
Total flow Approved Upstream From Point of Connection: (MGD)
A map of the location used to calculate Available Capacity is attached.
3 OWNER/OPERATOR INFORMATION: Owner Operator
Responsible Person’s Name: Position:
Agency or Company:
Mailing Address:
Telephone: Fax:
Email Address:
4 CONSTRUCTION SCHEDULE FOR ADDITIONAL CAPACITY
Details are described on attachment.
5 CAPACITY ASSURANCE CERTIFICATION (TO BE COMPLETED BY OWNER/OPERATOR IN SECTION 3)
I, _______________________________________ , affirm that, in accordance with A.A.C. R18-9-E301 (C)(2), the sewer collection system downstream from this project can maintain the performance standards required under AAC R18-9-E301(B) for the increased flow from the proposed system or expansion identified in Section “1" of this form. I certify that the information provided on this form is based on the best available information.
Signature: Date:
ngarcia Typewritten Text X ngarcia Typewritten Text X ngarcia Typewritten Text Project Manager ngarcia Typewritten Text City of Flagstaff ngarcia Typewritten Text 211 W Aspen Ave, Flagstaff, AZ 86001
Jackson.Salazar Typewritten Text x
Instructions - Capacity Assurance Sewage Collection System
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