Permit Review Detail
Review Status: Approved
Review Details: FLOODPLAIN USE REVIEW v.1
Permit Number - TE-FPU-0825-00317
Review Name: FLOODPLAIN USE REVIEW v.1
Review Status: Approved
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 10/17/2025 | Floodplain Administration Review - Standard | APPROVED | Expires: June 1, 2026 FLOODPLAIN USE PERMIT: TDOT1525 - EXTENDED PROJECT LOCATION: Temporary outfall connection to City stormdrain for PFAs Remediation Well C-007A discharge PROPERTY OWNER: City of Tucson (within 32nd Street right-of-way) Applicant is authorized to use a portion of the City of Tucson stormdrain system that flows to the City of Tucson Flood Hazard Area (COTFHA) of Citation W.A.S.H. Ordinance watercourse in the Tucson Arroyo Watershed (TSMS CW) a Balanced Basin Management Area, (Panels 2283 & 2284 L), specifically described as: public right-of-way (ROW) in 32nd Street and near Parcel 130140160, 4301 E 32ND ST, Tucson AZ, 85711, located within Ward 5, within T14S R14E Section 22, for purpose of maintaining infrastructure for temporary connection to the City’s stormdrain infrastructure for temporary discharge to the City of Tucson MS4 with outfall to Citation Wash southeast of intersection of Palo Verde Rd / Alvernon Wy and 29th St. The applicant agrees to comply with City of Tucson Floodplain, Stormwater and Erosion Hazard Management codes, and Watercourse Amenities, Safety and Habitat (W.A.S.H.) Ordinance regulations, and is particularly bound by the conditions stated below. Violation of any of the conditions stated or referred to below, as determined by the City Engineer, shall be grounds for revocation of this permit. Responsibility for renewal of this permit, or extend the permit, if necessary, is with the applicant. Issuance of this permit does not constitute a waiver of other requirements contained in the Tucson City Code, Unified Development Code, or any other Federal, State, County, or local regulation. No use other than as permitted herein is allowed. This permit becomes invalid and is subject to additional floodplain review, if any part of the project changes the installation or construction of the infrastructure, or, if there is any further disturbance within the stormdrain system other than that outlined in this application. This floodplain use permit is subject to conditions / restrictions designed to maintain stormwater surface water quality, reduce or mitigate the potential damage or hazard to life or property resulting from the installation of utility infrastructure within stormwater conveyance area within the regulatory floodplain, floodway, or erosion hazard areas as determined by the project engineer and accepted by the City of Tucson. The following 11 conditions apply to permit TDOT1525: 1) All work shall conform to City of Tucson regulations and this floodplain use permit and conditions. This permit shall not apply to other property, which is not specified under this permit. This permit allows for the construction of a connection to the City’s storm drain system at existing catch basin and grated inlet south of 4301 E 32nd Street, and the temporary discharge of treated ground water to comply with ADWR and ADEQ permitting, City Manager’s Office, and any other local or State restrictions. 2) See also associated permit TE-FPU-0825-00317 (in new permitting system). 3) Watercourse maintenance inspection activities are required for the duration of the project to be performed by applicant. Watercourse maintenance shall occur at minimum prior to monsoon, within 4 weeks after commencement of project discharge, after monsoon, after winter rainy season, and again prior to monsoon, etc. Extents of maintenance activity are limited to the downstream segments of the Citation Wash that is impacted by the Central Tucson PFAs Program remediation demonstration project and/or associated discharge. Watercourse maintenance shall follow an approved watercourse maintenance plan as approved and accepted by the City of Tucson. Applicant shall contact our watercourse maintenance staff to assist with best location for access into the watercourse and perform unhoused debris removal promptly to expedite additional maintenance by State’s contractor for mowing, algae removal, etc. 4) Watercourse maintenance may include tree trimming, vegetative mowing, removal of algae mats, reestablishment of eroded areas or other changes to watercourse due to project discharge. Limitations due to W.A.S.H. Ordinance segment of the Citation Wash exist; watercourse maintenance plan shall clarify any restrictions, and be updated at request of City of Tucson. 5) Trenching, ground disturbance, staging, or material storage related to maintenance activities shall not disturb existing stormdrain infrastructure or existing utility infrastructure. Project shall be considered stopped, and notification shall be made to the Stormwater Inspector, City Engineer 311 and Floodplain Administrative staff 520-429-4905, until repairs are made to any disturbed or damaged existing stormdrain system infrastructure. 6) This permit allows for the temporary discharge of treated ground water for emergency treatment purposes. If an extension to project expiration date is needed, an extension may be requested (up to one year maximum), until a permanent project discharge solution and location can be designed, accepted by City of Tucson Stormwater Management, and approved. Permanent solution may include discharge to sanitary system or reclaimed water system and should not include discharge to City of Tucson MS4 system without specific approval from City Engineer. Applicant to continue to provide updates for efforts to find permanent discharge location. Periodic testing results for effluent shall be submitted to the City of Tucson stormwater staff. 7) Call for DTM Engineering Inspections (stormwater and floodplain inspections): DTM Engineering Division / Stormwater (520) 429-4905, or 311). Call for Stormwater Management inspections, during or after project construction activity / prior to final City Stormwater inspection of temporary project closure activity. 8) Except as approved by City Engineer, project improvements under this permit shall not obstruct, retard or divert the existing flow of floodwaters from or to adjacent properties. Increases in vegetation growth or other changes from the continued discharge from treatment site into the watercourse shall be addressed by the periodic maintenance activities and if necessary other abatement or project changes that may warrant a revised drainage report and/or submittal of details or plans. The activities under this project shall: not be allowed to create increased maintenance costs to the City; not increase sediment transport due to wet soils in watercourse; not discharge pollutants to storm drain system, and not increase flooding potential due to increase in N-value from continual flowrate. Disturbance of the floodplain is only permitted as per approved by City of Tucson. 9) Additional free permit extensions may be provided with the request for extension submitted prior to expiration date, with City Floodplain Administration approval. 10) Any additional work in stormdrain system, changes to proposed treatment infrastructure for the Central Tucson PFAs Program remediation demonstration, or future disturbance of floodplain shall have a separate floodplain permit application submitted to the City for review / approval. 11) Floodplain Use Permit and plans shall be kept in readily accessible location on construction site at all times. This Floodplain Use Permit will be automatically revoked & becomes invalid after June 1, 2026 or if conditions are not complied with, as set forth in this permit. APPLICANT NAME: Matt Narter, ADEQ, (520) 770-3128, narter.matthew@azdeq.gov CITY CONTACT: Jeff Biggs, Tucson Water, (520) 837-2111, jeff.biggs@tucsonaz.gov (EXPIRATION DATE) Month: 06 Day: 1 Year: 2026 SIGNATURE OF APPLICANT DATE Applicant is authorized by the City Engineer to receive this floodplain use permit TDOT1525 (aka TE-FPU-0825-00317) subject to above referenced conditions and restrictions. |