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Home My WebLink AboutPackets - Stormwater Utillity Commission (192) AGENDA STORMWATER UTILITY COMMISSION REGULAR SESSION JULY 18, 2024 HOPI CONFERENCE ROOM 11000 N. LA CAÑADA DRIVE REGULAR SESSION AT OR AFTER 4:00 PM CALL TO ORDER ROLL CALL CALL TO AUDIENCE - at this time, any member of the public is allowed to address the Commission on any issue not listed on today’s agenda. Pursuant to the Arizona open meeting law, individual Commission members may ask Town staff to review the matter, ask that the matter be placed on a future agenda, or respond to criticism made by speakers. However, the Commission may not discuss or take legal action on matters raised during "Call to Audience." In order to speak during "Call to Audience", please specify what you wish to discuss when completing the blue speaker card. COUNCIL LIAISON COMMENTS (INFORMATIONAL ONLY) DIRECTORS REPORT (INFORMATIONAL ONLY) REGULAR SESSION AGENDA 1.REVIEW AND APPROVAL OF THE MAY 16, 2024 AND JUNE 20, 2024 MEETING MINUTES 2.DISCUSSION OF MEETINGS AND EVENTS 3.DISCUSSION OF 2023/2024 TOWN OF ORO VALLEY MS4 COMPLIANCE SCHEDULE, FOURTH QUARTER REPORT 4.DISCUSSION AND PRESENTATION OF PRE-MONSOON MAINTENANCE ACTIVITIES 5.DISCUSSION AND PRESENTATION OF THE SIERRA WASH AT VIA MANDARINA BOX CULVERT OUTLET APRON IMPROVEMENTS 6.PRESENTATION AND DISCUSSION OF ADOPTED BUDGET FOR FISCAL YEAR 2024/2025 AND POTENTIAL FUTURE RATE SCENARIO ADJOURNMENT POSTED: 7/12/2024 at 5:00 pm by dt When possible, a packet of agenda materials as listed above is available for public inspection at least 24 hours prior to the Commission meeting in the Town Clerk's Office between the hours of 8:00 a.m. – 5:00 p.m. The Town of Oro Valley complies with the Americans with Disabilities Act (ADA). If any person with a disability needs any type of accommodation, please notify the Town Clerk’s Office at least five days prior to the Commission meeting at 229-4700. INSTRUCTIONS TO SPEAKERS Members of the public have the right to speak during any posted public hearing. However, those items not listed as a public hearing are for consideration and action by the Commission during the course of their business meeting. Members of the public may be allowed to speak on these topics at the discretion of the Chair. If you wish to address the Commission on any item(s) on this agenda, please complete a blue speaker card located on the Agenda table at the back of the room and give it to the Recording Secretary. Please indicate on the speaker card which item number and topic you wish to speak on, or if you wish to speak during “Call to Audience,” please specify what you wish to discuss when completing the blue speaker card. Please step forward to the podium when the Chair announces the item(s) on the agenda which you are interested in addressing. 1. For the record, please state your name and whether or not you are a Town resident. 2. Speak only on the issue currently being discussed by the Commission. Please organize your speech, you will only be allowed to address the Commission once regarding the topic being discussed. 3. Please limit your comments to 3 minutes. 4. During “Call to Audience”, you may address the Commission on any issue you wish. 5. Any member of the public speaking must speak in a courteous and respectful manner to those present. Thank you for your cooperation. “Notice of Possible Quorum of the Oro Valley Town Council, Boards, Commissions and Committees: In accordance with Chapter 3, Title 38, Arizona Revised Statutes and Section 2-4-4 of the Oro Valley Town Code, a majority of the Town Council, Board of Adjustment, Historic Preservation Commission, Parks and Recreation Advisory Board, Stormwater Utility Commission, and Water Utility Commission may attend the above referenced meeting as a member of the audience only.” Stormwater Utility Commission 1. Meeting Date:07/18/2024 Requested by: John Spiker, Public Works Submitted By:Yarina Hynd, Public Works SUBJECT: REVIEW AND APPROVAL OF THE MAY 16, 2024 AND JUNE 20, 2024 MEETING MINUTES RECOMMENDATION: Staff recommends approval. EXECUTIVE SUMMARY: N/A BACKGROUND OR DETAILED INFORMATION: N/A FISCAL IMPACT: N/A SUGGESTED MOTION: I MOVE to approve (approve with changes), the May 16, 2024 and the June 20, 2024 meeting minutes. Attachments 05-16-24 Draft Minutes 06-20-24 Draft Minutes D R A F T MINUTES STORMWATER UTILITY COMMISSION REGULAR SESSION MAY 16, 2024 HOPI CONFERENCE ROOM 11000 N. LA CAÑADA DRIVE REGULAR SESSION AT OR AFTER 4:00 PM CALL TO ORDER Chair Crocker called the meeting to order at 4:01 P.M. ROLL CALL Present: Richard Hawkinson, Commissioner Rob Schlicher, Commissioner Richard Crocker, Chair Absent: Gary Mattson, Vice Chair Staff Present:John Spiker, Stormwater Division Manager Attendees: Dr. Harry Greene, Town Council Liaison Commissioner Hawkinson attended via telephone. CALL TO AUDIENCE There were no speaker requests at this time. COUNCIL LIAISON COMMENTS (INFORMATIONAL ONLY) Councilmember Greene mentioned that Naranja Park was opening on Saturday, May 18, 2024. DIRECTORS REPORT (INFORMATIONAL ONLY) Stormwater Division Manager John Spiker commented on the following: Welcome to Mr. Rob Schlicher as the newest member of the Stormwater Utility Commission. On Saturday, May 18th from 9am to 11am will be the grand re-opening celebration of the Naranja Park Expansion where there are several new park elements to offer the community. Fire season is here. Do your part to prevent fires and check your property for potential fire hazards. The Town of Oro Valley Stormwater Utility was notified last week by the Arizona Department of Emergency Management and Military Affairs (AZDEMA) that one of our project requests has been awarded funding. The Federal Emergency Management Agency has informed DEMA that the Hazard Mitigation Grant Program has authorized more than $200,000 to the Town for improvements to the box culvert on the Sierra Wash at Via Mandarina. We thank AZDEMA and FEMA for their support. Staff will be presenting the project to the commission in a future meeting for a full briefing. Our partners at the Pima County Regional Flood Control District have approved requests from the Oro Valley Stormwater Utility for sediment and vegetation management in the Mutterer/Pusch/Rooney Washes as well as bank protection and handrail repairs in the Valle De Oro Wash adjacent to Riverfront Park. Work efforts are underway and expected to be completed before monsoon season starts. Work efforts are expected to cost Pima County nearly $300,000. We thank our partners at the Pima County Regional 5/16/24 Minutes, Stormwater Utility Commission Regular Session 1 expected to cost Pima County nearly $300,000. We thank our partners at the Pima County Regional Flood Control District for their support. REGULAR SESSION AGENDA 1.REVIEW AND APPROVAL OF THE APRIL 18, 2024 MEETING MINUTES Motion by Commissioner Rob Schlicher, seconded by Chair Richard Crocker to approve the meeting minutes as written. Vote: 3 - 0 Carried 2.DISCUSSION OF MEETINGS AND EVENTS Mr. Spiker discussed recent meetings and events. Mr. Spiker noted that Arizona is misspelled as Arizoan for the meeting listed on May 20, 2024. 3.PRESENTATION AND DISCUSSION OF ORO VALLEY MONSOON PREPAREDNESS Mr. Spiker discussed detailed activities for Monsoon preparedness that the Utility has engaged in. It was noted that discussions about the monsoon season usually take place in June, but it takes about 30 days to get a flood insurance policy, and it is a good time to ask questions about whether your property needs flood insurance. Oro Valley continues to work with local partners in preparing for the monsoon season. Councilmember Greene commented that he was proud of the way the Stormwater Utility obtained grants. Mr. Spiker thanked CM Greene and commented that it has taken three years to get this particular grant. 4.PRESENTATION AND DISCUSSION OF POTENTIAL STORMWATER UTILITY FUTURE BUDGET SCENARIOS Mr. Spiker presented potential budget scenarios regarding the rate adjustment review. The presented scenarios do not represent the entirety of what may be possible. Additional scenarios may be requested by the Commission for future Commission meetings should the discussion lead to new ideas. Three scenarios have been developed as requested by Commissioners at the April 18, 2024 Stormwater Utility Commission (SWUC) meeting. 1st Scenario represents a variable Stormwater rate adjustment and associated potential expenses over a 10-year period. 2nd Scenario represents a Stormwater rate adjustment occurring every 2 years until the fee reaches a total of $7 per Equivalent Residential Unit and associated potential expense over a 10-year period. 3rd Scenario represents a one-time Stormwater rate adjustment and associated potential expense over a 10-year period. The feedback from the Commission was that they favored Scenario 3, which reflects a one-time Stormwater Utility Fee increase. This scenario will be refined and re-presented to the SWUC once the Fiscal Year 24/25 Budget is adopted by Town Council. ADJOURNMENT 5/16/24 Minutes, Stormwater Utility Commission Regular Session 2 Motion by Commissioner Rob Schlicher, seconded by Commissioner Richard Hawkinson to adjourn the meeting. Vote: 3 - 0 Carried Chair Crocker adjourned the meeting at 5:13 P.M. I hereby certify that the foregoing minutes are a true and correct copy of the minutes of the regular session of the Town of Oro Valley Stormwater Utility Commission of Oro Valley, Arizona held on the 16th day of May 2024. I further certify that the meeting was duly called and held and that a quorum was present. ___________________________ Yarina Hynd Senior Office Specialist 5/16/24 Minutes, Stormwater Utility Commission Regular Session 3 D R A F T MINUTES STORMWATER UTILITY COMMISSION REGULAR SESSION JUNE 20, 2024 HOPI CONFERENCE ROOM 11000 N. LA CAÑADA DRIVE REGULAR SESSION AT OR AFTER 4:00 PM CALL TO ORDER The meeting was called to order at 4:10 p.m. ROLL CALL Present: Gary Mattson, Commissioner Rob Schlicher, Commissioner Absent: Richard Hawkinson, Commissioner Richard Crocker, Chair Staff Present:John Spiker, Stormwater Division Manager Attendees: Dr. Harry Greene, Town Council Liaison Chair Crocker asked to be excused. Commissioner Schlicher attended via telephone. Roll call was taken at 4:10 p.m. and there was not a quorum. Vice Chair Mattson adjourned the meeting at 4:11 p.m. Prepared by, ___________________________ Yarina Hynd Senior Office Specialist 6/20/24 Minutes, Stormwater Utility Commission Regular Session 1 Stormwater Utility Commission 2. Meeting Date:07/18/2024 Requested by: John Spiker, Public Works Submitted By:John Spiker, Public Works SUBJECT: DISCUSSION OF MEETINGS AND EVENTS RECOMMENDATION: N/A EXECUTIVE SUMMARY: The following is a list of immediate past, and future, stormwater meetings and events. May 16, 2024 - Oro Valley Stormwater Utility Commission Meeting May 20, 2024 - Arizona Department of Environmental Quality Surface Water Protection and Improvement Stakeholder Seminar June 5, 2024 - Pima County Regional Flood Control District Flood Response and Investigation Training June 10, 2024 - Pima Association of Governments Low Impact Development Working Group Meeting June 19, 2024 - Pima County Regional Flood Control District Advisory Committee Meeting June 20, 2024 - Pima Association of Governments Watershed Planning Subcommittee Meeting June 20, 2024 - Oro Valley Stormwater Utility Commission Meeting June 25, 2024 - Arizona Department of Emergency and Military Affairs Sierra Wash at Via Mandarina Kick Off Meeting June 26, 2024 - Oro Valley Stormwater Utility Municipal Separate Storm Sewer System Employee Training July 8, 2024 - Pima Association of Governments Low Impact Development Working Group Meeting July 17, 2024 - Pima County Regional Flood Control Advisory Committee Meeting July 18, 2024 - Oro Valley Stormwater Utility Commission Meeting BACKGROUND OR DETAILED INFORMATION: For informational purposes only. FISCAL IMPACT: N/A SUGGESTED MOTION: N/A Stormwater Utility Commission 3. Meeting Date:07/18/2024 Requested by: John Spiker, Public Works Submitted By:John Spiker, Public Works SUBJECT: DISCUSSION OF 2023/2024 TOWN OF ORO VALLEY MS4 COMPLIANCE SCHEDULE, FOURTH QUARTER REPORT RECOMMENDATION: This report is for informational purposes only. EXECUTIVE SUMMARY: The Town of Oro Valley's (Town) Stormwater Management Program and Annual Report to ADEQ identify Minimum Control Measures (MCM’s) used to manage and control quality of stormwater runoff from the MS4. Each MCM has been given specific implementation dates and frequencies, measurable goals, and responsible departments. This memorandum is a report on the Town’s Stormwater Management Program for the fourth quarter of the Annual Reporting Period for 2023-2024 (July 1st through June 30th). It has been prepared to keep stakeholders informed of the status of project implementation in terms of completed tasks that are either (A) ongoing or continuous, or (B) to be done a minimum of once each year. Accompanying this Memorandum is a summary table listing each of the six (6) required MCM’s along with their specific subset of Best Management Practices (BMP’s). This summary table shows that the Stormwater Utility is up to date, and has met this quarter’s goals for implementing BMP’s that are ongoing and continuous. BACKGROUND OR DETAILED INFORMATION: The Town manages stormwater quality in accordance with the Arizona Pollutant Discharge Elimination System (AZPDES) Permit AZG2021-002 that authorizes the discharge of stormwater from the municipal separate storm sewer system (MS4) to receiving waters, including Waters of the United States (WOTUS). The MS4 generally consists of roads, storm drains, and infrastructure carrying runoff into drainage ways or ephemeral stream channels. The Town has a Stormwater Management Program (SWMP) that describes the control measures it uses to manage the quality of discharges from the MS4. These Best Management Practices (BMPs) are: MCM-1. Public Education and Outreach MCM-2. Public Participation and Involvement MCM-3. Illicit Discharge Detection and Elimination MCM-4. Construction Site Runoff Control MCM-5. Post-Construction Runoff Control MCM-6. Pollution Prevention/Good Housekeeping for Municipal Operations The Town’s Stormwater Management Program describes specific practices it uses to achieve compliance with Part 6.4 of the AZPDES Permit related to Minimum Control Measures, including specific implementation dates and frequencies, measurable goals, and responsible departments. Our staff keeps track of these thirty-three (33) targeted responsibilities, and has prepared the attached summary table showing project implementation in terms of completed tasks that are either (A) ongoing or continuous, or (B) to be done a minimum of once each year. This attached summary Table shows that the Stormwater Utility is fully up to date and has met this quarter’s goals for implementing BMP’s that are ongoing and continuous. The next scheduled update will be prepared and distributed sometime after the 1st quarter ends on September 30th, 2024. FISCAL IMPACT: N/A SUGGESTED MOTION: N/A Attachments 4th quarter compliance schedule 2023/2024 Town of Oro Valley MS4 Compliance Schedule Quarter 4 July - Sept Oct - Dec Jan - Mar Apr - June MCM-1 Public Education and Outreach BMP 1.1 Create and update informational brochures (A) x x x x BMP 1.2 Distribution of informational brochures to the general public (A) x x x x BMP 1.3 Distribution of brochures to businesses that potentially affect stormwater quality (B) x BMP 1.4 Stormwater content in the Oro Valley Vista Newsletter (B) x BMP 1.5 Outreach events at Town of Oro Valley schools (B) x BMP 1.6 Display of outreach materials on Town owned Sun Shuttle buses. (A) x x x x BMP 1.7 Stormwater content on the Town of Oro Valley website (A) x x x x BMP 1.8 Effective response to public inquiries (A) x x x x MCM-2 Public Participation and Involvement BMP 2.1 Public participation through the Stormwater Utility Commission (SWUC) (A) x x x x BMP 2.2 Public involvement through notification of monthly SWUC meetings (A) x x x x BMP 2.3 Public interaction with SWU Staff (A) x x x x BMP 2.4 Solicitation of public comments regarding key components of utility operations (A) x x x x BMP 2.5 Encouragement of public participation via volunteer groups sponsored by the TOV (A) x x x x MCM-3 Illicit Discharge Detection and Elimination BMP 3.1 Implementation of an IDDE program (A) x x x x BMP 3.2 Identification and Mapping of the MS4 (A) x x x x BMP 3.3 Identification and mapping of the Town's Municipal Outfall Inventory (A) x x x x BMP 3.4 Annual Municipal Employee Illicit Discharge Training Program (B) x BMP 3.5 Training of Town volunteers (A) x x x x BMP 3.6 Written IDDE Procedures (A) x x x x MCM-4 Construction Site Stormwater Run-Off Control BMP 4.1 Comprehensive pre-construction site plan review (A) x x x x BMP 4.2 Erosion and sediment control for capital improvement projects (A) x x x x BMP 4.3 Establishment and review of Town ordinances regarding disposal of hazardous construction site waste, sediment control, and erosion control (A) x x x x BMP 4.4 Documentation of procedures (A) x x x x BMP 4.5 Personnel Qualifications and Education of Private Contractors/Developers (A) x x x x BMP 4.6 Establish Procedures for Receipt and Consideration of Constituent Submittals (A) x x x x MCM-5 Post-Construction Runoff Control BMP 5.1 Creation, review and enforcement of post-construction stormwater pollution prevention regulatory mechanisms and standard operating procedures (A) x x x x BMP 5.2 Comprehensive GIS Inventory of Active and Finished Construction Projects (A) x x x x BMP 5.3 Implement Standard Operating Procedure on Post-Construction Inspections (A) x x x x BMP 5.4 Site Plan Reviews (A) x x x x MCM-6 Pollution Prevention and Good Housekeeping for Municipal Operations BMP 6.1 Inspection of Town of Oro Valley Municipal Operations, Storage, and Maintenance Facilities (A) x x x x BMP 6.2 Street Sweeping (A) x x x x BMP 6.3 Implementation of SPCC and Operation and Maintenance Plans for Town Maintenance Facilities (A) x x x x BMP 6.4 Municipal Employee Training Program (B) x BMP 6.5 Town of Oro Valley Municipal Vehicle and Heavy Equipment Washing Procedures (A) x x x x BMP 6.6 Town of Oro Valley Fleet Maintenance Schedule (A) x x x x BMP 6.7 Facility Safety Data Sheet Inventory (A) x x x x (A) Ongoing and Continuous (B) Done Only Once Per Fiscal Year x means task completed during indicated quarter S. Bennett 7/10/2024 Stormwater Utility Commission 4. Meeting Date:07/18/2024 Requested by: John Spiker, Public Works Submitted By:John Spiker, Public Works SUBJECT: DISCUSSION AND PRESENTATION OF PRE-MONSOON MAINTENANCE ACTIVITIES RECOMMENDATION: N/A EXECUTIVE SUMMARY: The annual monsoon rainy season delivers significant portions of the yearly rainfall total during a three month window. These intense rainfall events also deliver strong winds and lightning, which can bring additional damage. The Oro Valley Stormwater Utility, in preparation for these conditions, performs annual pre-monsoon activities which include sediment and vegetation management, erosion control, inspection of assets, debris removal, and other activities as warranted to ensure drainageway conditions are ready for the anticipated rainfall volumes the monsoon season may deliver. Pre-monsoon activities typically occur during the spring season prior to the start of the rainy season, which usually begins in late June to early July. This year, the Oro Valley Stormwater Utility has set out to deliver maintenance efforts in the Mutterer/Pusch/Rooney Washes Confluence Area, Valle De Oro Wash downstream of Lambert Lane, and various drainage assets around town. Although no one can prevent flooding from occurring should drainage infrastructure design levels be exceeded by natural events, these pre-monsoon maintenance activities help ensure drainage elements are in sound condition to meet their original design intent and be as ready as they can for the monsoon rains and associated debris loads. BACKGROUND OR DETAILED INFORMATION: For informational purposes only. FISCAL IMPACT: N/A SUGGESTED MOTION: N/A Attachments pre monsoon activities Oro Valley Stormwater Utility Pre-Monsoon Drainage Maintenance Work June 20, 2024 •Town Ordinance •Chapter 17 –Floodplain and Erosion Hazard Management •17-3-9-B –Unlawful Acts When drainage improvements are associated with an approved development plan, subdivision plat or approved engineering report, and are constructed to provide flood protection to remove or reduce flood hazards, including those identified by FEMA or for stormwater quality control, and where those improvements are privately owned, then it shall be the responsibility of the property owner(s) to perform maintenance as necessary to ensure the integrity of said drainage improvements and maintenance of the flood carrying capacity to the designed discharge. For purposes of this chapter, a private drainage improvement is considered a structure. It is unlawful for any person or entity to neglect maintenance responsibilities on private drainage improvements. Mutterer/Pusch/Rooney Wash Complex •The Oro Valley Stormwater Utility has requested assistance from the Pima County Regional Flood Control District to perform sediment and vegetation maintenance activities. •This area has a very flat channel slope allowing debris to drop out of the stormwater and settle. Debris accumulates rapidly and can effectively block stormwater from moving downstream and can pose a flood threat if left unaddressed. •This area was last addressed in 2020 •Recent work effort was completed in May 2024 E. Pusch View Lane Canada Del Oro Wash N. Oracle Road County Funded Mutterer Wash Maintenance E. Greenock Dr. ¯0 300 600150 Feet Legend Mutterer Rooney and Push Wash Confluence Maintenance Mutter/Pusch/R ooney Wash Maintenance Existing Conditions Mutter/Pusch/Rooney Wash Maintenance Vegetation and Sediment Management Mutter/Pusch/Rooney Wash Maintenance Vegetation and Sediment Management Valle De Oro/Gravel Pit Wash •The Oro Valley Stormwater Utility has requested assistance from the Pima County Regional Flood Control District to perform sediment and vegetation maintenance activities and repair damaged handrail and concrete bank protection downstream of Lambert Lane W. Lambert Lane Canada Del Oro Wash County Funded Gravel Pit Wash Concrete Bank Repair CDO Riverfront Park ¯Feet0125250 Legend Gravel Pit Wash Concrete Bank Repair Valle De Oro/Gravel Pit Wash Existing Conditions Valle De Oro/Gravel Pit Wash Sediment, Vegetation, Handrail and Bank Protection Work Efforts Drainage Asset Maintenance •The Oro Valley Stormwater Utility routinely performs inspection of drainage assets within the town. These inspections help staff identify maintenance and repair needs Drainage Asset Maintenance Before After Drainage Asset Maintenance Before After Stormwater Utility Commission 5. Meeting Date:07/18/2024 Requested by: John Spiker, Public Works Submitted By:John Spiker, Public Works SUBJECT: DISCUSSION AND PRESENTATION OF THE SIERRA WASH AT VIA MANDARINA BOX CULVERT OUTLET APRON IMPROVEMENTS RECOMMENDATION: N/A EXECUTIVE SUMMARY: Sierra Wash emanates in the northern part of Oro Valley near the La Cholla Air Park and then travels in a southerly direction through town along the La Cholla Boulevard alignment where it meets the Canada Del Oro Wash just north of Overton Road. The wash has been experiencing significant channel degradation as it attempts to lower itself to the elevation of the Canada Del Oro Wash. This has caused excessive erosion at various grade control structures, i.e. box culvert structures and roadways, as the wash crosses over the structures. Channel degradation erosion is exacerbated by localized scour forces at these hardened infrastructure points leaving drainage elements susceptible to damage and potential failure. The Town of Oro Valley has identified four locations on the Sierra Wash that require attention: Lambert Lane Naranja Drive Glover Road Via Mandarina Sierra Wash at Lambert Lane was addressed in 2019 with funding assistance from the Arizona Department of Emergency and Military Affairs (DEMA). A new drop structure and energy dissipation outlet apron were put in place to reduce the scour potential at the roadway crossing. Sierra Wash at Naranja Drive was addressed in 2023 utilizing Oro Valley Stormwater Utility Funds. A new drop structure and energy dissipation outlet apron were put in place to reduce the scour potential as stormwater leaves the box culvert and heads downstream. Sierra Wash at Glover Road improvements are proposed to address erosion and scour at the box culvert outlet apron. An application has been submitted for funding from DEMA and the Federal Emergency Management Agency (FEMA). The Oro Valley Stormwater Utility is awaiting news of the funding award. Sierra Wash at Via Mandarina has recently been awarded funding by DEMA and FEMA to address erosion and scour at the box culvert outlet apron. A new drop structure and energy dissipation outlet apron are to be constructed to mitigate channel degradation and localized scour. $210,990.75 has been awarded to the Oro Valley Stormwater Utility by DEMA/FEMA and will be supported by Oro Valley Stormwater Utility funds to complete the work. Construction is anticipated to begin upon the conclusion of the 2024 monsoon season and will be completed prior to the end of the 2024/2025 Fiscal Year, June 30, 2025. BACKGROUND OR DETAILED INFORMATION: For informational purposes only. FISCAL IMPACT: N/A SUGGESTED MOTION: N/A Attachments sierra wash at via mandarina Oro Valley Stormwater Utility Sierra Wash at Via Mandarina Drainage Improvements June 20, 2024 •The Oro Valley Stormwater Utility has been monitoring conditions within the Sierra Wash as observed channel degradation and localized scour have impacted existing drainage infrastructure •In 2021 a Notice Of Intent was filed with the Arizona DepartmentofEmergencyandMilitaryAffairs (DEMA) to address conditions of Sierra Wash at Via Mandarina •In 2024 DEMA notified the Oro Valley Stormwater Utility that the funding request had been approved by the Federal Emergency Management agency Sierra Wash at Via Mandarina Sierra Wash at Via Mandarina Existing Conditions Sierra Wash at Via Mandarina Proposed Conditions Rendering LOCATION MAP SCALE: 3"= 1mi. A PORTION OF THE SW 14, SECTION 3, T. 12 S, R. 13 E, GILA & SALT RIVER MERIDIAN TOWN OR ORO VALLEY DRAINAGE INFRASTRUCTURE REPAIR AND REHABILITATION PROJECT THIS PROJECT CONSISTS OF CONSTRUCTION OF A REINFORCED CONCRETE DROP STRUCTURE AND GABION MATTRESS AT THE TERMINI OF THE EXISTING CONCRETE BOX CULVERT APRON. PROJECT No. OV50 20-21 02 GENERAL DESCRIPTION OF PROJECT SIERRA WASH EROSION MITIGATION AT W. VIA MANDARINA SHEET INDEX SHEET NO.SHEET DESCRIPTION 1 COVER SHEET 2 GENERAL NOTES 3 IMPROVEMENT PLAN 4 DETAILS DIV. ENGINEERREVISION DESCRIPTIONNO.DATEDESIGNED:CHECKED:DRAWN:DATECall 811 or click Arizona811.com Contact Arizona 811 at least two full working days before you begin excavation SHT OFFOR 03-20-231 PRELIMINARY NOT FOR CONSTRUCTION 60% CONSTRUCTION DRAWINGSCOVER SHEETSIERRA WASH @ VIA MANDARINAPUBLIC DRAINAGE IMPROVEMENT PLANTOWN OF ORO VALLEY, AZ4JLDRJLPROJECT OVERVIEW SCALE: 1"= 100' SURVEY NOTES THE TOWN OF ORO VALLEY NOTES PROJECT LOCATION 10N.LA CHOLLA BLVD.BK/PG 48/052 BK/PG 50/012 BK/PG 48/052 04 03 09 BK/PG 45/023 GLOVER RD.W. BK/PG 44/089 BK/PG 44/080BK/PG 47/021 CAÑADA HILLS GOLF COURSE W.NARANJA DR. W. VIA MANDARINA N. VIA DE LA VERBENITA HORIZONTAL AND VERTICAL CONTROL: THIS PROJECT UTILIZES THE NORTH AMERICAN DATUM OF 1983- NAD 83 (2011) (EPOCH:2010.0000) AND 1983 ARIZONA STATE PLAN COORDINATE SYSTEM- CENTRAL ZONE (0202 AZ C). THE VERTICAL DATUM IS THE NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD88) UTILIZING GEOID18 MODEL TO DERIVE ORTHOMETRIC GROUND HEIGHTS IN TABLE A BELOW. THIS SURVEY WAS PERFORMED WITH RTK GPS PROCEDURES FOR HORIZONTAL AND VERTICAL MEASUREMENTS IN MAY, 2020. THE BASIS OF BEARING FOR THIS PROJECT IS (S 88° 30' 13" W) BETWEEN HORIZONTAL CONTROL POINTS 109 AND 114 IN TABLE A BELOW. THE BASIS OF ELEVATION FOR THIS PROJECT IS CONTROL POINT 109, ALSO IN TABLE A BELOW. THE FOLLOWING CONTROL POINTS WERE USED IN THE LOCAL SITE CALIBRATION: ·HORIZONTAL POINTS USED: CONTROL POINTS 114 AND 109 ·VERTICAL POINT USED: CONTROL POINT 109 1.THIS MAP OF SURVEY WAS CREATED TO DOCUMENT THE TOPOGRAPHIC SURVEY OF SIERRA WASH AT VIA MANDARINA. NO BOUNDARY SURVEY WAS PERFORMED FOR THIS SURVEY. LOT LINES ARE SHOWN FOR MAPPING LOCATION PURPOSES ONLY. RIGHT OF WAY AND PROPERTY LINES ARE DERIVED FROM THE PIMA COUNTY GEOGRAPHIC INFORMATION SYSTEM FOR REFERENCE ONLY. 2.ALL PUBLIC RECORDS REFERENCED BY THIS SURVEY ARE RECORDS OF THE PIMA COUNTY RECORDER, PIMA COUNTY, ARIZONA. 3.THE CONSERVATION EASEMENT, AS RECORDED IN DOCKET 10381 PAGE 1634, IS NOT SHOWN. THE LIMITS OF THE CONSERVATION EASEMENT ARE SHOWN IN BOOK 45 PAGE 23 OF MAPS AND PLATS. 4.THE CONTROL LINE PROFILE AND CROSS-SECTIONS WERE SURVEYED IN MAY, 2020. THE THALWEG AND CROSS-SECTION ELEVATIONS ARE SUBJECT TO CHANGE FROM NATURAL WEATHER EVENTS. 5.THE CHANNEL CONTROL LINE DEPICTED HEREON WAS ESTABLISHED, IN THE FIELD, AS THE APPROXIMATE CENTER OF THE SAND BED CHANNEL. 1.THE CONTRACTOR SHALL VERIFY LOCATIONS AND ELEVATIONS OF ALL UTILITIES PRIOR TO ANY CONSTRUCTION. CONTRACTOR SHALL ALSO BE RESPONSIBLE FOR DAMAGE TO EXISTING ABOVE OR UNDERGROUND UTILITIES, INCLUDING THOSE NOT SHOWN ON THESE PLANS. W VIA MANDARINAN VIA DE LA VERBENITAW MISTERBEE DR W ARIZONA ROSE DR N CACTUS ROSE DRWORDEN JOHN V 224-08-0690 LAUTENSCHLAEGER TR 224-08-0870 HANCOCK PETER M & KROELL NANCY G JT/RS 224-08-0400PROJECT LOCATION HANCOCK PETER M & KROELL NANCY G JT/RS 224-08-0400 60% CONSTRUCTION DRAWINGS DIV. ENGINEERREVISION DESCRIPTIONNO.DATEDESIGNED:CHECKED:DRAWN:DATECall 811 or click Arizona811.com Contact Arizona 811 at least two full working days before you begin excavation SHT OFFOR 03-20-232 PRELIMINARY NOT FOR CONSTRUCTION 60% CONSTRUCTION DRAWINGSGENERAL NOTESSIERRA WASH @ VIA MANDARINAPUBLIC DRAINAGE IMPROVEMENT PLANTOWN OF ORO VALLEY, AZ4JLDRJLGENERAL CONSTRUCTION NOTES 1.ALL MATERIALS AND WORKMANSHIP SHALL CONFORM WITH THE PIMA ASSOCIATION OF GOVERNMENTS STANDARD SPECIFICATIONS FOR PUBLIC IMPROVEMENTS (SSPI), 2015 EDITION, EXCEPT AS MAY BE MODIFIED BY THESE CONTRACT DOCUMENTS. SECTION OR SUBSECTION CALL-OUTS IN THESE GENERAL CONSTRUCTION NOTES AND IN THE CONTRACT DOCUMENTS, BID SCHEDULE AND HEREIN REFER TO THE APPROPRIATELY NUMBERED SECTION OR SUBSECTION IN THE SSPI. 2.IN THE EVENT OF ANY DISCREPANCY OR CONFLICT BETWEEN THE PROJECT PLANS, SSPI AND/OR THE SPECIAL PROVISIONS, THE ORDER IN WHICH THEY SHALL GOVERN SHALL BE IN ACCORDANCE WITH THAT NOTED IN SUBSECTION 105-4. DISCREPANCIES, OMISSIONS OR CONFLICTS BETWEEN THE PROJECT PLANS, SPECIFICATIONS AND/OR CONTRACT DOCUMENTS SHALL BE BROUGHT TO THE IMMEDIATE ATTENTION OF THE ENGINEER FOR RESOLUTION BEFORE STARTING OR PROCEEDING WITH WORK ON THE PROJECT. 3.THE STANDARD DETAILS INCORPORATED INTO THE DESIGN OF THIS PROJECT HAVE BEEN FORMALLY ADOPTED BY THE VARIOUS AGENCIES THAT HAVE PREPARED AND PUBLISHED BY THEM. IN COMPLIANCE WITH THE ARIZONA STATE BOARD OF TECHNICAL REGISTRATION'S SUBSTANTIVE POLICY STATEMENT REGARDING SEALING OF STANDARD DETAILS AND IN VIEW OF THEIR LONG HISTORY OF USE, APPLICABILITY, AND/OR SOUNDNESS, THE ENGINEER ACCEPTS THEIR USE FOR THIS PROJECT AND FINDS NO NEED FOR THEIR ALTERATION OR MODIFICATION. 4.THE TOWN OF ORO VALLEY WILL PROVIDE ALL TOWN ISSUED PERMITS REQUIRED FOR THE WORK AT NO COST TO THE CONTRACTOR. 5.TRAFFIC CONTROL SHALL CONFORM TO THE REQUIREMENTS OF PART VI OF THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES, U.S. DEPARTMENT OF TRANSPORTATION, FEDERAL HIGHWAY ADMINISTRATION, LATEST EDITION, AS AMENDED AND/OR SUPPLEMENTED BY THE STATE OF ARIZONA AS WELL AS ANY ORDINANCE(S) OR REQUIREMENT(S) OF THE GOVERNMENTAL JURISDICTION(S) IN WHICH THE WORK IS BEING ACCOMPLISHED. 6.UPON COMMENCEMENT OF WORK, TRAFFIC CONTROL DEVICES SHALL BE INSTALLED AND MAINTAINED BY THE CONTRACTOR, IN CONFORMANCE WITH THE APPROVED TRAFFIC CONTROL PLAN, UNTIL SUCH TIME AS THE WORK IS COMPLETED. 7.SHOULD IT BE NECESSARY, THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING A SITE FOR STORAGE OF EQUIPMENT AND MATERIAL AND PAYMENT OF ANY ASSOCIATED RENT OR FEE ASSOCIATED WITH PROVIDING AND SECURING SUCH SITE. 8.THE CONTRACTOR SHALL KEEP AN APPROVED SET OF CONTRACT DOCUMENTS ON THE JOB SITE AT ALL TIMES. 9.EXISTING TOPOGRAPHY SHOWN ON THE PROJECT PLANS SHALL SERVE AS THE BASIS FOR ALL EARTHWORK COMPUTATIONS. THE CONTRACTOR'S SUBMISSION OF A BID ON THE PROJECT, SHALL SERVE AS ACKNOWLEDGEMENT THAT, UNLESS A SIGNIFICANT DEVIATION IS DETERMINED TO EXIST IN THE TOPOGRAPHY, IT SHALL BE ACCEPTABLE FOR THE PURPOSE OF FINAL EARTHWORK CALCULATION AND PAYMENT. A SIGNIFICANT DEVIATION IS DEFINED AS ONE WHICH WOULD RESULT IN AN EARTHWORK DIFFERENCE OF GREATER THAN +/- 20%. UPON DISCOVERY OF SUCH DEVIATION, THE CONTRACTOR SHALL IMMEDIATELY INFORM THE ENGINEER, IN WRITING. 10.ENCROACHMENTS INTO THE RIGHT-OF-WAY SHALL ONLY BE REMOVED BY WRITTEN ORDER OF THE TOWN OF ORO VALLEY, UNLESS OTHERWISE NOTED ON THE PROJECT PLANS OR SPECIAL PROVISIONS. 11.GRADING LIMITS SHALL BE CLEARLY MARKED IN THE FIELD BY THE CONTRACTOR. ONCE MARKED, THE CONTRACTOR AND ENGINEER SHALL, TOGETHER, REVIEW THE MARKED LIMITS FOR ACCEPTANCE. ALL WORK SHALL BE CONFINED WITHIN THESE ACCEPTED PROJECT LIMITS. 12.THE CONTRACTOR SHALL EXERCISE DILIGENCE AND CARE TO AVOID DAMAGE TO VEGETATIVE GROWTH OUTSIDE OF THE MARKED GRADING LIMITS OR ON ADJACENT PRIVATE PROPERTY. THE CONTRACTOR SHALL OBTAIN ANY/ALL EASEMENTS OR RIGHTS-OF-ENTRY PRIOR TO AN ENCROACHMENT ONTO OR CONSTRUCTION ON PRIVATE PROPERTY. 13.RIGHT-OF-WAY MARKERS OR PROPERTY CORNERS DISTURBED, DESTROYED OR REMOVED BY THE CONTRACTOR SHALL BE REPLACED AT THE SOLE COST OF THE CONTRACTOR. REPLACEMENT SHALL BE BY A LAND SURVEYOR REGISTERED IN THE STATE OF ARIZONA. RE-ESTABLISHED MONUMENTS AND PROPERTY CORNERS SHALL REQUIRE PREPARATION OF A RECORD OF SURVEY AND SUBMITTAL TO THE COUNTY RECORDER FOR RECORDING. A COPY OF THE RECORD OF SURVEY SHALL BE PROVIDED TO THE ENGINEER WITHIN FIVE WORKING DAYS OF RECORDING. 14.THE CONTRACTOR SHALL PERFORM EXCAVATION OPERATIONS IN A SAFE MANNER. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR SHORING, SHEETING, OR OTHER PROTECTIVE MEASURES TO PREVENT DAMAGE TO ADJACENT PROPERTIES, STRUCTURES OR UTILITY FACILITIES. 15.SHOULD ANY HUMAN REMAINS OR FUNERARY ITEMS BE DISCOVERED DURING CONSTRUCTION, ALL WORK SHALL IMMEDIATELY STOP IN THE AREA OF THE REMAINS. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE ENGINEER AND CONTACT THE REPATRIATION COORDINATOR AT THE ARIZONA STATE MUSEUM, PURSUANT TO ARIZONA REVISED STATUTE §41-865. 16.TRENCHES WILL NOT BE LEFT UNATTENDED AND WILL BE BACKFILLED PROMPTLY WITH APPROPRIATE MATERIAL. TRENCHES WILL NOT REMAIN OPEN OVERNIGHT WITHOUT THE PRIOR APPROVAL OF THE ENGINEER. SHOULD THERE BE A NEED TO LEAVE A TRENCH OPEN OVERNIGHT, THE EXCAVATION WILL BE PROTECTED BY FENCING AND FLASHING LIGHTS, IF ADJACENT OR WITHIN A ROADWAY OR PEDESTRIAN WAY. LADDERS WILL BE PROVIDED BY THE CONTRACTOR AS NEEDED. 17.ITEMS OF WORK SPECIFIED FOR DEMOLITION OR REMOVAL SHALL BE REMOVED FROM THE PROJECT SITE AND DISPOSED OF BY THE CONTRACTOR. THE COST FOR HAULING AND DISPOSAL SHALL BE CONSIDERED INCIDENTAL TO AND INCLUDED IN THE BID COST OF THE ITEM REQUIRING DEMOLITION OR REMOVAL. 18.ITEMS OF WORK SPECIFIED AS BEING SALVAGED SHALL BE REMOVED, HANDLED AND STORED IN A MANNER THAT WILL PROTECT THE SALVAGED ITEMS FROM DAMAGE AND/OR CONTAMINATION. UNLESS OTHERWISE INDICATED ON THE PROJECT PLANS OR SPECIAL PROVISIONS, UPON COMPLETION OF THE PROJECT, SALVAGED ITEMS WHICH HAVE NOT BEEN REMOVED BY THE TOWN FORCES OR INCORPORATED INTO THE WORK SHALL BECOME THE PROPERTY OF THE CONTRACTOR AND REMOVED FROM THE PROJECT SITE. 19.COMPACTION FOR ALL EARTHWORKS SHALL BE TO A MINIMUM OF 95% OF ASTM D 1557 UNLESS OTHERWISE SPECIFIED IN THE CONTRACT DOCUMENTS. 20.REINFORCED CONCRETE SHALL CONFORM TO THE REQUIREMENTS OF SECTION 1006 AND SHALL HAVE A COMPRESSIVE STRENGTH OF 3,000 POUNDS PER SQUARE INCH UNLESS OTHERWISE SPECIFIED IN THE CONTRACT DOCUMENTS. 21.CONCRETE INCORPORATED INTO STRUCTURES SHALL CONFORM TO THE REQUIREMENTS OF SECTION 601. 22.THE CONTRACTOR SHALL COMPLY WITH ALL LOCAL, STATE AND FEDERAL REGULATIONS RELATED TO THE SAFETY OF PERSONNEL AND THE PUBLIC ON THE JOB SITE, INCLUDING APPLICABLE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) REGULATIONS AND, IN PARTICULAR, THOSE DEALING WITH TRENCHING AND SHORING. 23.THE CONTRACTOR SHALL PROVIDE A MINIMUM NOTICE OF FORTY-EIGHT (48) HOURS WHEN REQUIRING THE SERVICES OF THE ENGINEER OR OTHER PERSON PROPERLY AUTHORIZED TO PROVIDE DIRECTION IN THE FIELD. THE CONTRACTOR SHALL ALSO PROVIDE ASSISTANCE, WHEN SO REQUESTED BY THE ENGINEER OR THE ASSISTANT(S) OF THE ENGINEER, WHICH THEY MAY REQUIRE IN THE INSPECTION OF THE WORK. 24.DURING THE COURSE OF ALL WORK ON THE PROJECT, THE CONTRACTOR SHALL ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR ALL JOB SITE CONDITIONS INCLUDING SAFETY OF ALL PERSONS AND SECURITY OF ALL PROPERTY. THE CONTRACTOR SHALL SUPERVISE AND DIRECT THE WORK USING THE SKILLS AND ATTENTION DEEMED AS STANDARD WITHIN THE INDUSTRY. 25.THE CONTRACTOR SHALL BE CONTINUOUSLY RESPONSIBLE FOR SITE SECURITY DURING CONSTRUCTION. TEMPORARY FENCING AND/OR BARRIERS SHALL BE INSTALLED, RELOCATED AND MAINTAINED BY THE CONTRACTOR IN A MANNER TO PROTECT THE WORK AND THE PUBLIC FOR THE ENTIRE DURATION OF WORK ON THE PROJECT. 26.WHEN SHOWN ON THE PROJECT PLANS OR DIRECTED BY THE ENGINEER, CONSTRUCTION FENCING SHALL BE LOCATED AND MAINTAINED AT THE LIMITS OF DISTURBANCE OR BOUNDARY OF THE PROJECT. 27.THE CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR ALL CONSTRUCTION MEANS, METHODS, TECHNIQUES, SEQUENCES AND PROCEDURES AND FOR COORDINATING ALL PORTIONS OF THE WORK UNDER THIS CONTRACT. THIS REQUIREMENT SHALL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS. 28.IF UNANTICIPATED CONDITIONS ARE ENCOUNTERED DURING THE COURSE OF CONSTRUCTION, THE CONTRACTOR SHALL IMMEDIATELY BRING THE CONDITION TO THE ATTENTION OF THE ENGINEER BEFORE CONTINUING WITH WORK WHICH MAY BE IMPACTED BY THE UNANTICIPATED CONDITION(S). 29.ANY WORK PERFORMED WITHOUT THE APPROVAL OF THE ENGINEER AND ALL WORK AND MATERIALS NOT IN CONFORMANCE WITH THE PROJECT PLANS, STANDARD SPECIFICATIONS, SPECIAL PROVISIONS OR CONTRACT DOCUMENTS SHALL BE SUBJECT TO REMOVAL AND REPLACEMENT AT THE CONTRACTOR'S SOLE EXPENSE. 30.THE ENGINEER SHALL DETERMINE ACCEPTABILITY OF THE MATERIALS OR CONSTRUCTION AS INDICATED IN THE APPLICABLE SECTIONS OF THE SPECIFICATIONS. THE BURDEN OF PROVING THAT NON-CONFORMING WORK IS REASONABLE AND ADEQUATELY ADDRESSES THE DESIGN PURPOSE OR INTENT, INCLUDING ANY AND ALL ASSOCIATED COSTS, SHALL LIE SOLELY WITH THE CONTRACTOR. THE CONTRACTOR SHALL BEAR ALL RISK FOR CONTINUING THE NON-CONFORMING WORK IN QUESTION UNTIL A DETERMINATION REGARDING ITS ACCEPTABILITY IS MADE BY THE ENGINEER. THE ENGINEER MAY IMPOSE CONDITIONS FOR ACCEPTANCE OF NON-CONFORMING WORK. THE CONTRACTOR SHALL BEAR ALL COSTS FOR THE FULFILLMENT OF THE CONDITIONS IMPOSED. ALL DECISIONS REGARDING WHETHER THE WORK SATISFIES THE DESIGN PURPOSE OR INTENT SHALL BE SOLELY THAT OF THE ENGINEER. 31.ALL REVISIONS TO THE CONTRACT DOCUMENTS SHALL BE APPROVED BY THE ENGINEER, IN WRITING, BEFORE ANY WORK ASSOCIATED WITH THE REVISION IS COMMENCED. 32.DETAILS ON THE PROJECT PLANS ARE INTENDED TO SHOW THE FINAL RESULT OF DESIGN. MINOR MODIFICATIONS MAY BE REQUIRED TO SATISFY JOB SITE DIMENSIONS AND/OR CONDITIONS, AND SUCH MODIFICATIONS SHALL BE INCLUDED AS PART OF THE CONTRACT WORK. 33.ALL BID ITEMS ARE COMPLETE IN PLACE, INCLUDING, BUT NOT LIMITED TO, FURNISHING ALL MATERIALS, EQUIPMENT, TOOLS, SUPPLIES, INCIDENTALS, TRANSPORTATION AND EXPERIENCED PERSONNEL AND SUPERINTENDENCE REQUIRED. 34.NO WORK SHALL BE UNDERTAKEN OR COMMENCED WITHOUT LINES AND GRADES HAVING BEEN ESTABLISHED. WORK DONE CONTRARY TO THE DIRECTION OF THE ENGINEER, WORK DONE BEYOND THE LINES SHOWN ON THE PROJECT PLANS OR AS OTHERWISE DIRECTED BY THE ENGINEER OR ANY EXTRA WORK DONE WITHOUT PRIOR APPROVAL SHALL BE CONSIDERED AS UNAUTHORIZED AND SHALL NOT BE PAID FOR UNDER THE PROVISIONS OF THE CONTRACT. ALL SUCH WORK MAY BE ORDERED REMOVED AND/OR REPLACED BY THE ENGINEER AT NO ADDITIONAL COST TO THE TOWN OF ORO VALLEY. 35.ALL STATIONING SHOWN ON THE PROJECT PLANS AND PROFILES IS ALONG THE CONSTRUCTION CENTERLINE UNLESS OTHERWISE NOTED. 36.CONTOUR LINES SHOWN ON THE GRADING PLANS ARE TO BE USED FOR ROUGH GRADING ONLY. SPECIFIC SPOT ELEVATIONS ARE TO BE USED AS THE BASIS FOR FINAL GRADING. 37.THE CONTRACTOR SHALL MAINTAIN ACCESS TO ALL DRIVEWAYS, ALLEYWAYS AND MAILBOXES DURING THE DURATION OF CONSTRUCTION. THE CONTRACTOR SHALL NOT RESTRICT ACCESS BY EMERGENCY VEHICLES, POSTAL DELIVERY, SOLID WASTE AND RECYCLABLE COLLECTIONS AND/OR ACCESS TO PROPERTIES ADJACENT TO THE WORK, EXCEPT AS NOTED ON THE PROJECT PLANS OR APPROVED, IN WRITING, BY THE ENGINEER. 38.UPON COMPLETION OF EXCAVATION, BACKFILLING OR OTHER INDIVIDUAL ITEMS OF WORK, ALL SURPLUS MATERIALS AND EQUIPMENT, NO LONGER NEEDED, SHALL BE REMOVED FROM THE AREA, LEAVING THE SITE AND SURROUNDINGS FREE OF OBSTRUCTION, TO THE SATISFACTION OF THE ENGINEER. 39.THE CONTRACTOR SHALL DEFEND, INDEMNIFY AND HOLD THE TOWN OF ORO VALLEY AND ITS ENGINEER HARMLESS FROM ANY AND ALL LIABILITY REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF THE WORK ON THIS PROJECT, EXCEPTING LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE TOWN AND/OR ITS ENGINEER OR AGENTS. 40.THE CONTRACTOR IS ADVISED THAT IT SHALL BE THEIR SOLE RESPONSIBILITY TO PROVIDE SUBSURFACE INVESTIGATION(S) AND/OR TESTING, AT THE SOLE EXPENSE OF THE CONTRACTOR, IN ORDER TO ASSURE THEMSELVES OF THE CONDITIONS TO BE ENCOUNTERED WITHIN THE LIMITS OF THE PROJECT AT THE TIME OF CONSTRUCTION. SUCH INVESTIGATION(S) SHALL BE UNDERTAKEN AND COMMENCE ONLY UPON OBTAINING APPROVAL, IN WRITING, FROM THE TOWN OF ORO VALLEY. 41.THE CONTRACTOR SHALL LIMIT ALL CONSTRUCTION ACTIVITY TO AREAS THAT ARE WITHIN THE RIGHTS-OF-WAYS OR EASEMENTS SHOWN ON THE PROJECT PLANS. 42.THE LOCATION OF FEATURES WHICH ARE NOT SPECIFICALLY DIMENSIONED OR NOTED USING HORIZONTAL/VERTICAL COORDINATES ARE APPROXIMATE. UTILITY COORDINATION AND RESPONSIBILITIES 1.THE LOCATION AND ELEVATION OF EXISTING UTILITIES, AS SHOWN ON THE PROJECT PLANS, ARE BASED ON ABOVE GROUND SURVEYS AND THE BEST AVAILABLE RECORD INFORMATION PROVIDED BY UTILITY OPERATORS. UTILITY INFORMATION PROVIDED IS NOT INTENDED TO BE EXACT OR COMPLETE. NEITHER THE TOWN OF ORO VALLEY NOR THE ENGINEER CAN GUARANTEE THE ACCURACY OR COMPLETENESS OF THE UTILITY INFORMATION SHOWN ON THE PROJECT PLANS. 2.THE CONTRACTOR SHALL VERIFY THE LOCATION OF ALL UTILITIES SHOWN ON THE PROJECT PLANS WITH THE APPROPRIATE UTILITY. THE CONTRACTOR SHALL CONTACT ARIZONA 811 AT LEAST TWO (2) FULL WORKING DAYS IN ADVANCE OF ANY CONSTRUCTION WORK TO ALLOW UTILITY OPERATORS TO VERIFY AND MARK LOCATIONS OF EXISTING FACILITIES. (NOTE: NEITHER SATURDAY NOR SUNDAY IS CONSIDERED A BUSINESS DAY) 3.THE CONTRACTOR SHALL BE RESPONSIBLE FOR COMPARING THE PROJECT PLANS TO EXISTING CONDITIONS AND FOR VERIFYING ACTUAL FIELD CONDITIONS AND LOCATION. IT SHALL BE THE CONTRACTOR'S SOLE RESPONSIBILITY TO PROTECT ALL EXISTING UTILITIES IN-PLACE AND/OR COORDINATE WITH UTILITY COMPANIES FOR REMOVAL OR RELOCATION OF INTERFERING FACILITIES, UNLESS OTHERWISE NOTED OR SPECIFIED IN THE CONTRACT DOCUMENTS. 4.THE CONTRACTOR SHALL NOTIFY THE ENGINEER OF ANY DISCREPANCY BETWEEN THE LOCATION AND/OR SIZE OF UNDERGROUND UTILITIES AND THE INFORMATION SHOWN ON THE PROJECT PLANS. 5.THE SIZE, LOCATION AND TYPE OF ANY UNDERGROUND UTILITIES OR IMPROVEMENTS ENCOUNTERED DURING THE COURSE OF WORK ON THE PROJECT SHALL BE ACCURATELY NOTED AND PLACED ON AS-BUILT DRAWINGS KEPT BY THE CONTRACTOR AND ISSUED TO THE ENGINEER UPON COMPLETION OF THE PROJECT. 6.THE TOWN OF ORO VALLEY SHALL NOT BE RESPONSIBLE FOR ANY LIABILITY INCURRED, WHATSOEVER, DUE TO DELAYS AND/OR DAMAGE TO UTILITIES RESULTING FROM CONSTRUCTION ACTIVITIES ON THIS PROJECT. ENVIRONMENTAL CONTROL AND MAINTENANCE OF SITE CONDITIONS: 1.THE AREA TO BE DISTURBED IS APPROXIMATELY XX SQUARE FEET (XX ACRE) 2.THE CONTRACTOR SHALL MAKE ALL NECESSARY PROVISIONS TO PROTECT EXISTING IMPROVEMENTS, ROADWAYS, DRAINAGE WAYS, CULVERTS AND VEGETATION UNLESS OR UNTIL SUCH ITEMS ARE TO BE DISTURBED OR REMOVED AS INDICATED ON THE APPROVED CONSTRUCTION DOCUMENTS. 3.THE CONTRACTOR SHALL CLEAR, GRUB, REMOVE AND PROPERLY DISPOSE OF ALL EXISTING VEGETATION WITHIN THE LIMITS OF THE CONSTRUCTION DEPICTED ON THE PROJECT PLANS OR AS DIRECTED BY THE ENGINEER. REMOVAL OF ALL CACTI AND NATIVE PLANTS SHALL BE IN ACCORDANCE WITH THE LATEST PROVISIONS OF THE “ARIZONA NATIVE PLANT LAW” ARIZONA REVISED STATUTE, CHAPTER 7 (ARS SECTION 3-901, ET. SEQ.) AND THE PIMA COUNTY NATIVE PLANT PRESERVATION ORDINANCE. 4.ALL TRASH, RUBBLE, ASPHALT, CONCRETE AND/OR MISCELLANEOUS MATERIAL ENCOUNTERED WITHIN THE PROJECT LIMITS AND NOT REQUIRED FOR THE PROJECT SHALL BE REMOVED AND DISPOSED OF OFFSITE BY THE CONTRACTOR. INCLUDED IN THIS REQUIREMENT IS ANY BURIED TRASH, RUBBLE, ASPHALT, CONCRETE AND/OR MISCELLANEOUS MATERIAL(S) ENCOUNTERED IN ANY EXCAVATION. 5.ANY WORK CONDUCTED IN DRAINAGE CHANNELS OR WASHES SHALL COMPLY WITH ALL APPLICABLE STATE AND FEDERAL REGULATIONS. 6.THE SIERRA WASH IS NOT A JURISDICTIONAL WATERCOURSE AS SPECIFIED IN SECTION 404 OF THE CLEAN WATER ACT. NO 404 PERMIT CONDITIONS NOR NOTIFICATION REQUIREMENTS ARE NECESSARY. 7.SIERRA WASH IS AN ACTIVE EPHEMERAL WATERCOURSE SUBJECT TO FLOW ON AN INTERMITTENT BASIS. IT IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR TO ADEQUATELY MONITOR WEATHER FORECAST INFORMATION IN ORDER TO SCHEDULE CONSTRUCTION ACTIVITIES DURING TIMES WHEN NO FLOW IS ANTICIPATED TO OCCUR IN THE WASH. 8.STORMWATER POLLUTION PREVENTION PLAN (SWPPP) IS NOT REQUIRED FOR THIS PROJECT. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO PROVIDE BEST MANAGEMENT PROTOCOLS TO ASSURE COMPLIANCE WITH GENERALLY ACCEPTED STORMWATER POLLUTION PREVENTION (SWPP) PROCEDURES AND METHODS WITHIN THE CONSTRUCTION AREA. SWPP ELEMENTS AND WORK SHALL BE ACCEPTABLE TO THE ENGINEER AND CONFINED WITHIN THE PROJECT LIMITS, WITH A MINIMUM INTERIOR BUFFER OF ONE FOOT. 9.THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROLS AND MAKE ANY NEEDED REPAIRS OR MODIFICATIONS, AS REQUIRED AND TO THE SATISFACTION OF THE ENGINEER, FOR THE DURATION OF THE PROJECT. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROLS WEEKLY OR AFTER ANY RAINFALL EVENT. 10.PRIOR TO COMMENCING ANY CONSTRUCTION OR CONSTRUCTION PHASE, THE CONTRACTOR SHALL INSTALL AND/OR INSPECT ALL EROSION CONTROLS AND MAKE ANY REPAIRS REQUIRED AS WELL AS UNDERTAKE THE INSTALLATION OF ANY ADDITIONAL EROSION CONTROL WHICH IS REASONABLY REQUIRED FOR ANY CONSTRUCTION PHASE OR OPERATION. 11.THE CONTRACTOR'S STAGING AND STORAGE AREA(S) SHALL ALSO REQUIRE INSTALLATION OF SWPP ELEMENTS IN CONFORMANCE WITH BEST MANAGEMENT PRACTICES. 12.ALL EARTHWORK STOCKPILES OR EXCAVATED MATERIALS THAT ARE TO BE EXPOSED TO THE ELEMENTS FOR MORE THAN 24 HOURS SHALL BE ENCIRCLED BY APPROPRIATE SEDIMENT CONTROL DEVICES. STOCKPILES SHALL BE KEPT MOISTENED OR COVERED, AS NECESSARY, TO PREVENT WIND EROSION AND DUST POLLUTION. 13.THE CONTRACTOR SHALL PROTECT ALL ADJACENT PROPERTY AND EXISTING AND NEW IMPROVEMENTS, AND SHALL PROVIDE POSITIVE CONTROL OF EARTH SPILLAGE, CONSTRUCTION WATER AND RUNOFF WATER FROM THE SITE. 14.THE CONTRACTOR MAY, AT HIS SOLE DISCRETION, MAINTAIN TEMPORARY DIVERSIONS TO PROTECT WORK IN THE CHANNEL FROM DAMAGE DUE TO RUNOFF. HOWEVER, THE CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR ANY/ALL DAMAGE OR DELAY IN CONSTRUCTION CAUSED BY DIVERSION OF FLOW IN THE CHANNEL. 15.EQUIPMENT AND MATERIAL SHALL NOT REMAIN IN THE CHANNEL AND THE CHANNEL SHALL REMAIN FREE OF ANY OBSTRUCTION WHATSOEVER WHEN THE CONTRACTOR IS NOT ACTIVELY WORKING ON THE SITE. 16.THE CONTRACTOR SHALL OBTAIN AN AIR POLLUTION PERMIT FROM THE PIMA COUNTY DEPARTMENT OF ENVIRONMENTAL QUALITY AND SHALL BE RESPONSIBLE FOR ALL NECESSARY DUST CONTROL MEASURES. 17.THE CONTRACTOR SHALL BE RESPONSIBLE FOR COMPLIANCE WITH ALL REGULATIONS AND DIRECTIVES REGARDING DUST POLLUTION. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO FURNISH, HAUL AND APPLY ALL WATER REQUIRED FOR COMPACTION AND FOR THE CONTROL OF DUST FROM CONSTRUCTION ACTIVITY. THE COST OF DUST CONTROL IS INCIDENTAL TO AND DEEMED INCLUDED IN THE CONTRACT ITEMS IN THE BIDDING SCHEDULE REQUIRING COMPACTION WATER OR NECESSITATING DUST CONTROL. 18.IN THE COURSE OF PROVIDING CONSTRUCTION WATER FOR THE PROJECT, THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING A SOURCE OF CONSTRUCTION WATER, INCLUDING INSTALLATION OF METER(S), BACKFLOW PREVENTION DEVICES AND PAYMENT OF ANY/ALL FEES AND CHARGES. 19.AT THE COMPLETION OF EACH WORK DAY AND PRIOR TO FINAL APPROVAL AND ACCEPTANCE OF THE WORK, THE CONTRACTOR SHALL CLEAN THE STREET(S) ADJACENT TO THE PROJECT OF ANY CONSTRUCTION RELATED DUST AND/OR DEBRIS. THE CONTRACTOR SHALL LEAVE THE SITE IN A CLEAN, WELL GRADED, WELL DRAINING AND NEAT CONDITION THAT IS ACCEPTABLE TO THE ENGINEER. LINE TYPES SYMBOLS PL PROPERTY LINE SECTION LINE LEGEND ROW PLATTED Q100 FLOODPLAIN LIMITS ROADWAY CENTERLINE GAS GAS EXISTING MINOR CONTOUR OVERHEAD ELECTRIC EXISTING MAJOR CONTOUR FENCE SANITARY SEWER LINE 12" WATER MAIN OH EXISTING ASPHALT PAVEMENT UTILITY POLE S SEWER MANHOLE WATER VALVE GUARD RAIL LIMITS OF SURVEY MONUMENT HATCH PATTERN EXISTING GROUTED RIP RAP ABBREVIATIONS PROPOSED CONCRETE PROPOSED GROUTED RIP RAP ASTM AMERICAN SOCIETY OF TESTING MATERIALS BBL BARREL BK BOOK BCSM BRASS CAP SURVEY MONUMENT C TO C CENTER TO CENTER C.A.COMMON AREA CF ? CL CENTER LINE DR DRIVE EA EACH ECP ? EL ELVATION EP EDGE OF PAVEMENT EXIST EXISTING HORIZ HORIZONTAL INV INVERT LAMB LABERT ROAD LT LEFT MAX MAXIMUM MIN MINIMUM M&P ? N NORTH NARAN NARANJA DRIVE NCP ? NO.NUMBER NP ? NTS NOT TO SCALE OH OVERHEAD ELECTRIC PID ? PIP ??? POURED IN PLACE PG PAGE PL PROPERTY LINE PT POINT RCP REINFORCED CONCRETE BOX RLS REGISTERED LAND SURVEYOR RM ??? REFERENCE MONUMENT ROW RIGHTS OF WAY RT RIGHT SHT SHEET STA STATION STD STANDARD SY SQUARE YARDS TYP TYPICAL THORNY THORNEYDALE ROAD VERT VERTICAL W WEST Q100 = 967 CFSW VIA MANDARINA SOUTH RIGHT OF WAY LINE PER PIMA COUNTY PARCEL MAP INTERSECTS WITH CONTROL LINE OF WASH AT APPROXIMATELY STATION 0+03.60. 100-YEAR FLOODPLAIN LIMIT AND LIMIT OF CONSERVATION EASEMENT PER PLAT DK 10381 PG 1634 8" SEWER SDR 35 PVC G-93-014 GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS GAS46 L.F. (4) 10' X 4'RCBC8" WATER PN 96-07 BP: 0+00.00 EP: 1 + 5 7. 7 4 PI: 0+10.35 PI: 0 + 5 0 . 8 2 PI : 0+66 .80 PI: 0+82.03 PI: 1+01.20 PI: 1+20 . 9 2 PI: 1 + 4 4. 7 9 1+58 0+00 0+501+001+ 5 0 OUTLET HEADWALL OF EXISTING 4 BBL-10' X 4 RCBC INV=2714.6 4 0 0 408 4 0 1 402 403 404 405 406 407L1L2L3 L4L5L6L7L8 CONTROL LINE TABLE LINE L1 L2 L3 L4 L5 L6 L7 L8 BEARING 10.35 40.48 15.97 15.23 19.17 19.72 23.87 12.95 DIRECTION S0° 02' 25"E S18° 58' 54"W S56° 12' 29"W S6° 52' 39"E S1° 51' 46"E S15° 56' 28"E S31° 50' 33"E S36° 57' 00"E CONTROL POINT TABLE Point # 400 401 402 403 404 405 406 407 408 Northing 515311.95 515301.60 515293.88 515275.86 515263.33 515254.44 515239.32 515220.16 515201.20 Easting 980372.09 980372.10 980369.44 980363.24 980358.93 980345.65 980347.48 980348.10 980353.52 LOT 36 NARANJA RANCH 1 BK. 45, PG. 23 M&P APN 224-08-0390 LOT 41 NARANJA RANCH 1 BK. 45, PG. 23 M&P APN 224-08-0430 LOT 38 NARANJA RANCH 1 BK. 45, PG. 23 M&P APN 224-08-0400 -2:1-3:1-3:1-2:1 STA: 0+26.99, 24.00'R 2711.00FG STA: 0+18.47, 0.00' 2711.01FG STA: 0+26.99, 24.00'R 2711.00FG STA: 0+17.99, 24.00'R 2714.00FG STA: 0+09.52, 0.00'L 2714.00FG STA: 0+09.29, 25.21'L 2714.00FG STA: 0+37.57, 0.00' 2710.87FG STA: 0+29.05, 24.00'L 2710.79FG 15FL 14FL STA: 0+61.61, 22.00'R 2710.79FG N: 515294.1737 E: 980394.9193 2711.00FG STA: 0+41.87, 24.00'L 2710.68FG 2710 . 7 7 F G 2710.66FG STA: 0+66.05, 17.50'L 2710.39FG STA: 0+37.57, 0.00' 2710.87FGSTA: 0+66.79, 11.00'R 2711.04FG 5%271227112713271427152715 - 3 : 1 - 2 : 1 -3:1 2711271227132 7 1 4 2715 2716 2717 2718 2719 2720 2721 2715 2716 2717 2718 2719 2720 2714.56EX 14' ACCESS GRADE TODRAININTOSWALE2715271127122713271427152716 2715 MAX CUT = 4'± TEMPORARY CONSTRUCTION EASEMENT TO BE RECORDED BY SEPARATE INSTRUMENT DIV. ENGINEERREVISION DESCRIPTIONNO.DATEDESIGNED:CHECKED:DRAWN:DATECall 811 or click Arizona811.com Contact Arizona 811 at least two full working days before you begin excavation SHT OFFOR 03-20-233 PRELIMINARY NOT FOR CONSTRUCTION 60% CONSTRUCTION DRAWINGSDEMOLITION PLANSIERRA WASH @ VIA MANDARINAPUBLIC DRAINAGE IMPROVEMENT PLANTOWN OF ORO VALLEY, AZ4JLDRJLSCALE: 1"= 10' CONTOUR INTERVAL = 1 FOOT SURVEY LIMITS A 4 A 4 B 4 B 4 C 4 C 4 AS AREA BETWEEN SOUTH EDGE OF PAVEMENT AND TOP OF SLOPE IS PUBLIC RIGHT OF WAY, IT CAN BE USED FOR CONTRACTOR PARKING, STAGING AND STORAGE LIMITS OF DISTUBANCE LIMITS OF DISTURBANCE AREA OF DISTURBANCE = 3629.43 SQ. FT TEMPORARY CONSTRUCTION EASEMENT TO BE RECORDED BY SEPARATE INSTRUMENT DIV. ENGINEERREVISION DESCRIPTIONNO.DATEDESIGNED:CHECKED:DRAWN:DATECall 811 or click Arizona811.com Contact Arizona 811 at least two full working days before you begin excavation SHT OFFOR 03-20-234 PRELIMINARY NOT FOR CONSTRUCTION 60% CONSTRUCTION DRAWINGSDETAIL SHEETSIERRA WASH @ VIA MANDARINAPUBLIC DRAINAGE IMPROVEMENT PLANTOWN OF ORO VALLEY, AZ4JLDRJL60'1'-6"RENO MATTRESS 3' GABION SILL18± LF OF 9" x 3' CONC. CUT OFF WALL (TYP. BOTH SIDES)GABION SILL W/ 18" Ø HDPE PIPE SEGMENTS 2'3'3'1'-6"15 NTS SECTION B-B EL:2687 SEE DETAIL THIS SHEET FOR DROP STRUCTURE DETAILS SEE DETAIL THIS SHEET FOR RENO MATTRESS/GABION TO CONCRETE CONNECTION 9' ±4'3 1 18" EL: 2714 MATCH APRON INVERT EL: 2711 SAND BED CHANNEL #4 BARS @ 18" C TO C HORIZ. AND VERT. SEE "KEY DETAIL", THIS SHEET 4" (TYP) NTS SECTION A-A CONCRETE DROP STRUCTURE DETAIL (f'c = 3,000 psi) SEE "VERTICAL BAR (#4) BEND DETAIL", THIS SHEET 3'-9"3'109°NTS VERTICAL BAR (#4) BEND DETAILS NTS KEY DETAIL 1' TRANSITION FROM 18" WIDTH TO 12" WIDTH OF SLOPE PAVING 2" x 4" KEYED CONSTR. JOINT (CONTINUOUS) IF CONSTRUCTED IN PHASES #4 BARS @ 18" C TO C EA. WAY (TYP). 4" (TYP) 2 1LAP REBA R 20" MIN18" 1 2 " NOTE: CENTER REINFORCING BARS IN CONC. L-HOOK POINTING DOWN L-HOOK POINTING UP L-HOOK POINTING DOWN 1'-6"(TYP)L-HOOK #3 REBAR (TYP) @ 18" INTERVALS, HORIZONTALLY 5-INCH EMBEDMENT. CONNECT TO GABION/RENO MATTRESS BASKETS WITH ALTERNATING HOOK DIRECTION UP AND DOWN 6"6" NTS L-HOOK (#3 BAR) L-HOOK #3 REBAR, 1 EA. @ 12" INTERVALS, VERTICALLY 5-INCH EMBEDMENT. CONNECT TO GABION/RENO MATTRESS BASKETS WITH ALTERNATING HOOK DIRECTION UP AND DOWN CONCRETE DROP STRUCTURE OR TOE DOWN WALL PLACE RENO MATTRESS BASKET WIRE MESH OVER L-HOOK #3 REBAR L-HOOK ALTERNATING DIRECTION (UP) 5" EMBEDMENT 1" MAX 5" HOOKRENO MATTRESS OR GABION BASKET NOTES: 1.PROVIDE CONNECTION HOOKS AT MATTRESS/GABION AND CONCRETE DROP STRUCTURE INTERFACE. 2.PAINT ALL EXPOSED REBAR AFTER FIELD INSTALLATION WITH GALVICON, GALVALLEY OR APPROVED EQUAL. NTS ALTERNATING HOOK DIRECTION (UP & DOWN) PLAN VIEW GABION MATTRESS TO CONCRETE DROP STRUCTURE CONNECTION CONCRETE DROP STRUCTURE DETAILS NTS SECTION C-C 12" VERIFY DEPTH IN FIELD 24" 12" #5 X 15" DOWELS @ 18" C TO C. ALTERNATE BETWEEN REINFORCING BARS EXISTING ADOT OUTLET APRON W/1' X 6' TOE DOWN PER STD. DET. SD 6.11. *(NOTE: AS-BUILT TOE DOWN DIMENSIONS ARE UNVERIFIED) 3'15" 71° (NOTE: PROVIDE 1" MIN CHAMFER OR REDIUS INSTALL 3' SEGMENTS OF 18" DIAMTER HDPE PIPE INTO GABION SILL BASKETS @ 10' CENTERS. SEE DETAIL C-C THIS SHEET. 10' (TYP) NTS SECTION G-G CONCRETE DROP STRUCTURE OR TOE DOWN WALL #3 REBAR L-HOOK ALTERNATING DIRECTION (DOWN) 5" EMBEDMENT 1" MAX NTS SECTION H-H 10' (TYP) H H G G 18" DIAMETER HDPE PIPE (TYPICAL) DETAIL F Stormwater Utility Commission 6. Meeting Date:07/18/2024 Requested by: John Spiker, Public Works Submitted By:John Spiker, Public Works SUBJECT: PRESENTATION AND DISCUSSION OF ADOPTED BUDGET FOR FISCAL YEAR 2024/2025 AND POTENTIAL FUTURE RATE SCENARIO RECOMMENDATION: N/A EXECUTIVE SUMMARY: As part of the continued future Stormwater Utility Rate Adjustment discussions, staff is presenting the adopted FY 24/25 budget for the Stormwater Utility and potential financial scenario to address State and Federal compliance with stormwater quality and floodplain management requirements. In addition to these requirements, the Stormwater Utility has identified capital improvement program projects and maintenance needs in the future to address aging infrastructure. The presented scenario does not represent the entirety of what may be possible. Additional scenarios may be requested by the commission for future commission meetings should the discussion lead to new ideas. The scenario has been developed as requested by commissioners at the April 18, 2024 Stormwater Utility Commission (SWUC) meeting. The scenario represents a one-time stormwater rate adjustment and associated potential expenses over a 10-year period. BACKGROUND OR DETAILED INFORMATION: N/A FISCAL IMPACT: N/A SUGGESTED MOTION: N/A Attachments adopted budget and future rate scenario Stormwater Utility 2024/2025 Budget and Future Rate Review Oro Valley StormWater Utility Commission July 18, 2024 Stormwater Utility Mission We are here to provide safe and efficient management of stormwater within the Town of Oro Valley. Thereby ensuring the promotion and protection of life, safety, water quality and the Town's working and natural environments. Stormwater Quality Management Responsibilities Stormwater Utility established in 2004 and intended to address: Environmental Protection Agency (EPA) and Arizona Department of Environmental Quality (ADEQ) regulations The EPA & ADEQ require the Town to obtain the following permits: Municipal Separate Storm Sewer Systems (MS4) permit National Pollutants Discharge Elimination System (NPDES) General Permit Construction General Permit (CGP) Floodplain Management Responsibilities Stormwater Utility Fee Increased in 2016 to address Floodplain Management Requirements National Flood Insurance Program (NFIP) Requirements as directed by the Federal Emergency Management Agency (FEMA) Managed in Arizona by the Arizona Department of Water Resources (ADWR) Identifying Areas Impacted by Regulatory Floods Providing Flood Hazard Information to the Public Encouraging Flood Insurance Reviewing Permit Applications Identifying and Correcting Floodplain Violations Maintaining and Protecting Floodplain Function Stormwater Utility Rate Update Meet policy requirements Reserves of 15% Adequate revenues to fund the costs of stormwater/floodplain management Support Stormwater Utility activities Implementation of all MS4, ADEQ and EPA requirements Implementation of all NFIP, ADWR and FEMA requirements Drainage channel and street shoulder vegetation maintenance (Quantity) Storm system inspections and maintenance/cleaning (Quantity) of culverts, basins, grade control structures, storm sewer inlets/outlets and drainage channels Storm cleanup Street sweeping (Quality) - stormwater determination vs normal street surface deterioration Low water crossings (Quantity/Quantity) depositing sand, rock, boulders and vegetation debris removal in roads during larger events of monsoons Storm generated debris removal in washes (Quantity) Road Safety (Quantity) due to storm activity at low water crossings and shouldering due to erosion Approved 2024/2025 Fiscal Year Budget Ten -Year Forecast Scenario Stormwater Fund 10 Year Forecast One Tme Increase Revised:7/11/2024 FY 2022/23 FY 2023/24 FY 2024/25 FY 2025/26 FY 2026/27 FY 2027/28 FY 28/29 FY 29/30 FY 30/31 FY 31/32 FY 32/33 FY 33/34 FY 34/35 Fiscal Previous Approved # of Units: Residential 19,173 19,284 19,383 19,478 19,608 19,780 19,900 19,980 19,980 19,980 19,980 19,980 19,980 NEW:projected Residential 222 99 95 130 172 120 80 - - - - - - Commercial 8,250 8,250 8,662 8,819 8,819 8,819 8,819 8,819 8,819 8,819 8,819 8,819 8,819 NEW:projected Commercial - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Total Units:27,645 27,633 28,140 28,427 28,599 28,719 28,799 28,799 28,799 28,799 28,799 28,799 28,799 Carry forward Fund Balance Match Finance 1,125,140$ 844,508$ 1,014,657$ 582,553$ 1,244,126$ 1,511,680$ 1,558,990$ 1,868,516$ 1,932,719$ 1,705,243$ 1,744,765$ 1,655,144$ 1,274,919$ Includes vehicle cash reserve Revenue: Monthly Stormwater Utility Fee/Unit 4.50$ 4.50$ 4.50$ 6.50$ 6.50$ 6.50$ 6.50$ 6.50$ 6.50$ 6.50$ 6.50$ 6.50$ 6.50$ Gross Revenues 1,476,786$ 1,512,000$ 1,517,000$ 2,217,400$ 2,230,800$ 2,240,100$ 2,246,400$ 2,246,400$ 2,246,400$ 2,246,400$ 2,246,400$ 2,246,400$ 2,246,400$ Grant Funds Federal - 210,000 - 480,000 3,800,000 - - - - - - - Other (Grants or Pima County)- - - - 400,000 - - - - - - - - Late Fees 310 310 1,500 1,500 1,500 1,500 1,500 1,500 1,500 1,500 1,500 1,500 1,500 Interest 11,683 11,683 19,000 - - - - - - - - - - 1,488,779$ 1,523,993$ 1,747,500$ 2,218,900$ 3,112,300$ 6,041,600$ 2,247,900$ 2,247,900$ 2,247,900$ 2,247,900$ 2,247,900$ 2,247,900$ 2,247,900$ Expenses: Personnel Total Personnel:865,272$ 951,557$ 1,018,770$ 1,046,277$ 1,074,526$ 1,101,389$ 1,128,924$ 1,157,147$ 1,186,076$ 1,215,728$ 1,246,121$ 1,277,274$ 1,309,206$ Contracts/Services Outside Professional Services*128,592 40,000 67,436 69,550 71,700 173,900 76,150 228,500 130,950 83,500 86,100 88,750 91,450 Administration & Financial Serv Health Clinic 3,636 3,650 4,421 4,600 4,750 4,900 5,050 5,250 5,450 5,650 5,850 6,050 6,250 General Outside Reviews - - - - - - - - - - - - - Drainage Reviews 78040 - - - - - - - - - - - - - Surveys/Data Management Studies 78041 28,303 10,000 10,000 10,300 10,650 11,000 11,350 11,700 12,100 12,500 12,900 13,300 13,700 Drainage Criteria Manual Update 78042 - - - - - - - - - - - - - Reviews/Surveys/Data/Studies 26,848 26,350 53,015 54,650 56,300 58,000 59,750 61,550 63,400 65,350 67,350 69,400 71,500 DCM Computation Add On 39,908 - - - - - - - - - - - - Mutterer's Feasibility And Alternatives Study 29,898 - - - - - - - - - - - - Stormdrain Asset Camera Condition Assessment - - - - - - 150,000 - - - - - Town-Wide Drainage Study - - - - 100,000 - - - - - - - Catalina Alternative - - - - - - - 50,000 - - - - Misc Studies - - - - - - - - - - - - Vehicle Repair & Maintenance a 2,820 5,384 5,384 5,550 5,750 5,950 6,150 6,350 6,550 6,750 7,000 7,250 7,500 Equipment Repair & Maintenance a 49,093 27,951 27,951 28,800 29,700 30,600 31,550 32,500 33,500 34,550 35,600 36,700 37,850 Rentals a - 1,000 1,000 1,050 1,100 1,150 1,200 1,250 1,300 1,350 1,400 1,450 1,500 Telecommunications - 69 - - - - - - - - - 1 2 Postage a 50 - 300 350 400 450 500 550 600 650 700 750 800 Printing & Binding a 1,023 114 1,500 1,550 1,600 1,650 1,700 1,800 1,900 2,000 2,100 2,200 2,300 Travel & Training a 2,780 1,191 8,800 9,100 9,400 9,700 10,000 10,300 10,650 11,000 11,350 11,700 12,100 Membership a 375 807 2,925 3,050 3,150 3,250 3,350 3,500 3,650 3,800 3,950 4,100 4,250 Office Supplies a 1,690 1,472 4,150 4,300 4,450 4,600 4,750 4,900 5,050 5,250 5,450 5,650 5,850 Gasoline a 23,096 14,173 13,000 13,400 13,850 14,300 14,750 15,200 15,700 16,200 16,700 17,250 17,800 Non-Capitalized Equipment 304 - - - - - - - - - - - - Uniforms*a 603 1,824 2,550 2,650 2,750 2,850 2,950 3,050 3,150 3,250 3,350 3,500 3,650 Bad Debt Expense a 2,966 2,500 2,500 2,600 2,700 2,800 2,900 3,000 3,100 3,200 3,300 3,400 3,550 Field Supplies a 237 21,003 25,000 25,750 26,550 27,350 28,200 29,050 29,950 30,850 31,800 32,800 33,800 Depreciation - - - - - - - - - - - - - Regulatory 5,001 5,000 7,200 7,450 7,700 7,950 8,200 8,450 8,750 9,050 9,350 9,650 9,950 Safety a - 1,500 1,500 1,550 1,600 1,650 1,700 1,800 1,900 2,000 2,100 2,200 2,300 Administration & Financial Serv 173,166 172,300 250,638 258,250 266,100 274,200 282,500 291,050 299,850 308,950 318,250 327,850 337,750 Financial & Budget - 50,400 - - - - - - - - - - - Human Resources - 14,300 - - - - - - - - - - - Innovation and Technology - 60,600 - - - - - - - - - - - Legal - 8,500 - - - - - - - - - - - Public Works - 11,600 - - - - - - - - - - - Town Clerk - 1,600 - - - - - - - - - - - Town Manager's Office - 25,300 - - - - - - - - - - - General Services Indirect 175,938 181,250 186,700 192,350 198,150 204,100 210,250 216,600 223,100 229,800 236,700 General Services Direct 1,700 1,800 1,900 2,000 2,100 2,200 2,300 2,400 2,500 2,600 2,700 Water Billing - - 73,000 75,200 77,500 79,850 82,250 84,750 87,300 89,950 92,650 95,450 98,350 Software Maintenance & Lic - - - - - - - - - - - - - Stormwater Maintenance (OPS)- - - - - - - - - - - - - Total Operations/Maintenance:391,797$ 296,287$ 421,834$ 434,950$ 448,500$ 562,350$ 476,550$ 641,250$ 556,550$ 522,350$ 538,500$ 555,201$ 572,402$ Capital Outlay/Projects Other - - - - - - - - - - - - - Minor Assets - 6,000 4,000 4,000 4,000 4,000 4,000 4,000 4,000 4,000 4,000 4,000 4,000 Grant Capacity - - - - - - - - - - - - - Vehicle - - - - - - 45,000 - - - - 45,000 - Building (Gate)- - - - - - - - - - - - - Equipment 6,654 - - - 350,000 - - - 280,000 - - - 350,000 Equipment - - - - - - - - - - - - - Town wide Drainage Projects 507,896 100,000 735,000 72,100 967,720 4,326,550 328,900 381,300 448,750 466,300 548,900 791,650 844,450 General Infrastructure Maintenance - 20,000 20,000 20,600 21,250 21,900 22,600 23,300 24,000 24,750 25,500 26,300 27,100 General Culvert Cleaning - Contractor 48,673 50,000 50,000 51,500 53,050 54,650 56,300 58,000 59,750 61,550 63,400 65,350 67,350 Other - - - - - - - - - - - - - Saddlehorn Place - - - - - - - - - - - - - Camino Bajio & Paseo Cordona - - - - - - - - - - - - - MUP Market Place - - - - - - - - - - - - - El Con Golf Path - - - - - - - - - - - - - Rancho Vistoso Culvert Repair - 30,000 - - - - - - - - - - - Mutterer's Construction - - - - - 250,000 250,000 - - - - - - Cat Ridge Alt - Erosion Repair 2 290,502 - - - - - - - - - - - - Gravel Pit Wash - - - - - - - - - - - - - Sierra Wash Construction (3-Phases)SW003 168,720 - 365,000 - 310,000 - - - - - - - - Pusch Ridge Golf Course Hole 9 Pathway Bank Protection - - - - - - - 300,000 - - - - - Oro Valley Country Club SW004 - 300,000 - - - - - - - - - - Pomegranate - - - - 183,420 - - - - - - - - Highland Wash - - - - 400,000 4,000,000 - - - - - - - Lamber Lane II - - - - - - - - - - - - - Proposed Future Projects - - - - - - - - - - - - - Highlands Wash at Tangerine Road Culvert - - - - - - - 365,000 - - - - Gravel Pit Wash at Tangerine Road Culvert - - - - - - - - 380,000 - - - Calle Concordia Roadside Drainage - - - - - - - - - - - Carmack Wash at Shadow Mountian Estates - - - - - - - - 460,000 - - Moore Road Roadside Drainage - - - - - - - - - - 150,000 - Shannon Road Roadside Drianage - - - - - - - - - - 150,000 750,000 Highlands Wash at Monterra Ridge 400,000 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - CAPITAL LEASE PRINCIPAL-43937 - - - - - - - - - - - - - CAPITAL LEASE INTEREST - - - - - - - - - - - - - Total Capital Outlay 514,550$ 106,000$ 739,000$ 76,100$ 1,321,720$ 4,330,550$ 332,900$ 385,300$ 732,750$ 470,300$ 552,900$ 795,650$ 1,198,450$ Total Expenses:1,771,619$ 1,353,844$ 2,179,604$ 1,557,327$ 2,844,746$ 5,994,289$ 1,938,374$ 2,183,697$ 2,475,376$ 2,208,378$ 2,337,521$ 2,628,125$ 3,080,058$ Surplus /(Deficit)(282,840) 170,149 (432,104) 661,573 267,554 47,311 309,526 64,203 (227,476) 39,522 (89,621) (380,225) (832,158) Total Cash Balance 842,300$ 1,014,657$ 582,553$ 1,244,126$ 1,511,680$ 1,558,990$ 1,868,516$ 1,932,719$ 1,705,243$ 1,744,765$ 1,655,144$ 1,274,919$ 442,761$ Contingency - 433,100$ -$ 456,500$ 1,021,800$ 1,017,600$ 1,262,000$ 1,276,000$ 1,264,400$ 1,253,700$ 1,088,800$ 708,500$ 176,200$ Vehicle Cash Reserve 304,607$ 354,774$ 404,940$ 455,107$ 155,274$ 205,440$ 269,607$ 319,774$ 103,940$ 154,107$ 229,474$ 229,474$ (70,360)$ Cash Balance 537,693$ 659,883$ 177,612$ 789,019$ 1,356,406$ 1,353,550$ 1,598,909$ 1,612,945$ 1,601,302$ 1,590,658$ 1,425,670$ 1,045,445$ 513,121$ 36.4%43.6%11.7%35.6%60.8%60.4%71.2%71.8%71.3%70.8%63.5%46.5%22.8% Total 842,300 1,014,657 582,553 1,244,126 1,511,680 1,558,990 1,868,516 1,932,719 1,705,243 1,744,765 1,655,144 1,274,919 442,761 Reserves 57.0%67.1%38.4%56.1%67.8%69.6%83.2%86.0%75.9%77.7%73.7%56.8%19.7% Increases - Grant Funding Received 2025 Projected 10 Year CIP Senario Questions Thank You