Documents & Reports
Documents & Reports in Reverse Chronological Order
- Pease Wastewater Treatment Facility NPDES Final Permit Modification 2023
- Peirce Island Wastewater Treatment Facility NPDES Final Permit 2023
2020 |
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- Sewer System Evaluation Survey (SSES I/I) Infiltration Study
Appendix C: Manhole Inspections and Flow Isolation Data
Appendix D: CCTV Data
Appendix F: Underwood Engineers Pilot Area TM (2017)
Appendix G: Underwood Engineers Pilot Area TM (2019) - Digester Feasibility Study for Pease Wastewater Facility
- Summary of Conceptual Anaerobic Digester Feasibility Study
2019 |
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- November 2019: Response Letter to EPA on Pease Wastewater Facility NPDES Permit Renewal
- June 2019: Sagamore Creek Water Quality Sampling Report Summary for 2018
- June 2019: Pease Wastewater Facility NPDES Permit Renewal
- March 2019: Pease Antidegradation Study (water quality sampling in support of the future Pease NPDES Permit)
- March 2019: Consent Decree Third Modification Regarding Stormwater Mitigation Project
- January 2019: History of the Portsmouth, NH Sewerage System Report
2018 |
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- July 2018: Sagamore Creek Water Quality Sampling Program Report
- January 24, 2018: Letter from EPA on Combined Sewer Overflow (CSO) Supplemental Compliance Plan (SCP) & Sewer System Evaluation Survey (SSES) Reports
- January 9, 2018: Letter from EPA on Chemically Enhanced Primary Treatment Facility (CEPT) Pilot Study Report
2017 |
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- December 22, 2017: Chemically Enhanced Primary Treatment Facility (CEPT) Pilot Study Report
- December 22, 2017: CSO Supplemental Compliance Plan (SCP) Final Report
- August 2017: Peirce Island, Sludge Processing Building Documentation, NH Historic Property No. 743
- July 10, 2017: EPA letter regarding the City’s proposed Supplemental Compliance Plan (SCP)
- June 2017: Revised Final CSO Post-Construction Monitoring Plan/Report
- June 2017: CSO Supplemental Compliance Plan
- June 20, 2017: Public Construction Tour Architectural Building Renderings
- June 16, 2017: Letter to EPA on Revised Final CSO Post-Construction Monitoring Plan/Report
- May 2017: Marcy Street Outfall Report
- May 2017: Marcy Street Outfall Report Appendix A
- May 2017: Marcy Street Outfall Report Appendix B
- May 2017: Marcy Street Outfall Report Appendix C
- April 18, 2017: Letter from EPA on Post Construction Monitoring Plan
- March 2017: Full Report of 2/3/17 Sewage Discharge
- March 2017: Final FDA Peirce Island WWTP dye study Report
- February 3, 2017: Notification of SSO due to sewer main break
2016 |
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- December 6, 2016: Letter from EPA on Construction Milestones
- November 2016: CSO Post-Construction Monitoring Plan/Report
- September 2016: Consent Decree Second Modification with Sagamore Ave South Figure
- September 2016: Memorandum of Agreement with COP, EPA and NH Div Historical Resources for PI WWTF
- Peirce Island WWTF Upgrade bid results were received on June 23, 2016 and results are available by clicking here.
- Infiltration / Inflow Technical Memorandum #1, #2, #3
- June 2016: Infiltration / Inflow Analysis
- May 2, 2016: REVISED Notice of Lodging of Proposed Consent Decree Second Modification Under The Clean Water Act
- April 8, 2016: Notice of Lodging of Proposed Consent Decree Second Modification Under The Clean Water Act
- March 16, 2016: Letter from Coastal Conservation
- March 11, 2016: New Hampshire Department of Environmental Services letter regarding Peirce Island Bond
- March 11, 2016: Conservation Law Foundation Letter Regarding Peirce Island Bond
2015 |
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- December 2015: Statement of Position regarding Consent Decree
- September 2015: Transmittal Letters to EPA and DES regarding 90 Percent PI WWTF Design Documents
- July 2015: Letter from EPA to Portsmouth Regarding Total Nitrogen Potential
- July 2015: Transmittal Letters to EPA and DES regarding 75 Percent PI WWTF Design Documents
- June 2015: Pease and Pease Regional Wastewater Evaluation Report
- May 2015: Staff Recommendation to City Manager Regarding Pease Wastewater Option Evaluation
2014 - 1999 |
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- October 2014: Transmittal Letter to EPA and DES regarding PI WWTF 60 Percent Design Document
- August 2014: Value Engineering Report of Peirce Island WWTF Design
- July 2014: Peirce Island WWTF Upgrade Preliminary (30 Percent) Design Report
- May 2014: Transmittal Letters to EPA and DES regarding Peirce Island WWTF Phase 1 Design Summary Report
- March 2014: Peirce Island WWTF Phase 1 Design Summary Memo
- February 2014: Joint Report of Peer Review Panel for Numeric Nutrient Criteria for the Great Bay Estuary
- January 2014: Pease WWTF Facilities Evaluation (DRAFT)
- Sept. 2012: Wastewater Technology Piloting Phase 2 Technical Memorandum
- July 2012: Modified Consent Decree (approved by Court February 2013)
- July 2012: Letter from EPA to Portsmouth Regarding Total Nitrogen Potential
- November 2010: Wastewater Master Plan & Long Term Control Plan: Final Submission
- June 2010: Wastewater Master Plan: Draft Submission
- September 2009: Consent Decree
- May 2007: Wastewater Master Plan Work Plan
- April 2007: Peirce Island WWTF Secondary NPDES Permit No. NH0100234 Final
- April 2005: CSO Long Term Control Plan
- April 2005: CSO Long Term Control Plan (Appendices)
- August 2000: Pease WWTF Permit
- November 1999: 201 Facilities Plan Report
Consent Decree Reports to EPA
Monthly Reports
Quarterly Reports
EPA Great Bay Total Nitrogen General Permit 2020
EPA Region 1 issued the Great Bay Total Nitrogen General Permit for 13 wastewater treatment facilities (WWTFs) that discharge treated wastewater containing nitrogen within the Great Bay watershed in New Hampshire.
Great Bay Total Nitrogen General Permit (NPDES GP NHG58A000) issued November 2020
Draft Great Bay Total Nitrogen General Permit for Wastewater Treatment Facilities
Great Bay Total Nitrogen Permit - Related Documents
Pease Development Authority Wastewater Agreements
Wastewater Disposal Facilities Transfer Agreement
Amendment 1 to Wastewater Disposal and Water Service Agreement
Wastewater Disposal and Water Service Facilities Sublease and License Agreement between PDA & City
Wastewater Disposal Services Agreement
Municipal Service Agreement Appendices (Maps - Roadways, Utilities, Airport)
Peirce Island WWTF Environmental Permits
Peirce Island WWTF Environmental Permits
April 2017: Peirce Island WWTF Wetland Permit
April 2017: Amendment B to Alteration of Terrain Permit
September 2016: Amended Alteration of Terrain Permit
April 2016: Amended Alteration of Terrain Permit
December 2015: Alteration of Terrain Permit Application for Peirce Island WWTF
December 2015: Alteration of Terrain Permit Application for Peirce Island WWTF
The permit application was based on a preliminary staging and traffic management layout. The City will be submitting a Request for Permit Amendment based on the final staging and traffic management layout.
December 2015: Drawings for Alteration of Terrain Permit Application for Peirce Island WWTF
November 2015: Peirce Island WWTF Wetland Permit from Army Corps - General
November 2015: Peirce Island WWTF Wetland Permit from Army Corps - Revetments
October 2015: Peirce Island WWTF Wetland Permit from NHDES - General
October 2015: Peirce Island WWTF Wetland Permit from NHDES – Revetments
June 2015: Wetland Permit Application for Peirce Island WWTF
The permit application and approval was based on a preliminary staging and traffic management layout. The City submitted a Request for Permit Amendment based on the final staging and traffic management layout.
June 2015: Wetland Permit Application for Peirce Island WWTF Protective Revetments