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HomeMy WebLinkAboutPackets - Stormwater Utillity Commission (89)AGENDA ORO VALLEY STORMWATER UTILITY COMMISSION WORK STUDY SESSION FEBRUARY 5, 2015 COUNCIL CHAMBERS 11000 N. LA CANADA DRIVE WORK STUDY SESSION AT OR AFTER 3:30 P.M. CALL TO ORDER ROLL CALL 1. STORMWATER UTILITY PRESENTATION 2. REVIEW OF THE PAST AND CURRENT FEE STRUCTURE 3. REVIEW AND DISCUSS EDITING CHANGES THE COMMISSION WILL RECOMMEND TO THE ENVIRONMENTAL COMMITTEE FOR YOUR VOICE, OUR FUTURE ADJOURNMENT POSTED: 1/29/15 at 1:00p.m. by mrs When possible, a packet of agenda materials as listed above is available for public inspection at least 24 hours prior to the Stormwater Utility Commission meeting in the Town Clerk's Office between the hours of 8:00 a.m. and 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. INSTRUCTION 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 Stormwater Utility 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 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. “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 2-4-2 of the Oro Valley Town Code, a majority of the Town Council, Board of Adjustment, Conceptual Design Review Board, Historic Preservation Commission, Parks and Recreation Advisory Board, Planning and Zoning Commission, and Water Utility Commission may attend the above referenced meeting as a member of the audience only.” Goal 3.3 Sonoran Desert Resources Policies and Actions Suggested POLICY 3.3.8 Maintain the natural qualities of creeks, washes, groundwater basins and recharge areas to protect the integrity of wildlife habitat, allow for wildlife movement and enhance the safety of the built environment.* (V09) ACTION ideas 3.3.8.1 Develop plans and provide resources to reduce soil erosion by slowing storm runoff and increase infiltration of stormwater into the groundwater supply.* (DEV) (V09) Alternative Action Idea 3.3.8.1 Develop plans and provide resources to reduce soil erosion by managing storm runoff and increase infiltration of stormwater into the groundwater supply.* (DEV) (V09) (I think the concept of increasing the infiltration of stormwater into the ground is worthy but complex in that it may allow the introduction of pollutants into the groundwater and if stormwater is ponded may lead to a mosquito nuisance as well as a safety hazard.) Suggested POLICY 3.3.10 Encourage development project designs that connect wildlife habitat areas, avoid disturbing significant wildlife habitat and minimize the overall impacts on wildlife habitat areas. (DEV) (V09) 3.3.10.5 Develop a plan to protect and buffer washes, riparian areas, vegetation, designated natural open space and environmentally sensitive lands from development encroachment and the associated flood risk and degraded habitat that may result. (DEV) (V09) Suggested POLICY 3.3.12 Strive to protect the public from the threats of flood and risks of stormwater surges. (V02) ACTION ideas 3.3.12.1 Provide resources to channel watercourses where appropriate to minimize safety threats. (V09) 3.3.12.2 Provide resources to maintain watercourses to avoid clogged channels caused by impediments.V09) 3.3.12.3 Provide resources to hydro seed all bare runoff areas with mature grasses that can be easily maintained. Alternative Action Idea 3.3.12.3 Provide resources to provide controls as appropriate to minimize sediment runoff. Goal 3.4 Water Resources and Actions Suggested POLICY 3.4.3 Utilize alternatives to attain sustainable groundwater production rates and reduce groundwater level declines. ACTION Ideas 3.4.3.1 Develop plans for the use of alternative sources of water for potable and non-potable uses, including rainwater, gray water, waste water effluent and Central Arizona Project water. 3.4.3.2 Explore the expanded use of stormwater harvesting as a means to reduce dependence on groundwater. 3.4.3.3 Incentivize the use of passive and active rainwater harvesting techniques. 3.4.3.4 Explore opportunities for expanded use of stormwater recharge areas as a means to recharge the groundwater supply and control erosion. Goal 3.6 Clean Environment Policies and Actions Suggested POLICY 3.6.3 Strive to protect the public from the threats of stormwater and potential negative impacts of containments from runoff, while integrating environmentally sensitive stormwater system design. ACTION ideas 3.6.3.1 Continue to support planning for and implementation of the Town’s Stormwater Management Plan. 3.6.3.2 Monitor and enforce stormwater controls to prevent aquifer pollution and the erosion or siltation of washes.* 3.6.3.3 Provide public education opportunities on ways to minimize negative environmental impacts of stormwater caused by urbanization. 3.6.3.4 Continue to support community programs such as the Buffel Busters and Adopt‐A‐Roadway/Trail/Wash programs to support Town efforts for stormwater management. Suggested POLICY 5.5.5 Provide for safety, efficiency and environmentally sensitive design in storm water systems. (V08) ACTION idea 5.5.5.1 Design major wash crossings to be hydraulically efficient (100‐year base flood) and environmentally sensitive with minimum physical or vis ual disruptions or impacts to riparian areas and wildlife habitat.* (ENV) (V08) ACTION idea 5.5.5.2 Require detention facilities and/or velocity reduction when necessary to maintain existing storm water runoff flows and velocities in natural drainage systems.* (GP11) ACTION idea 5.5.5.3 Rehabilitate and enhance Town owned natural drainage systems, water detention and retention basins, and other infiltration areas for multiple benefits including storm water management. (ENV) (GP11) ACTION idea 5.5.5.4 Evaluate all public and private development projects during the review process to determine the effects of the projects on on‐site and downstream drainage patterns and associated ecological systems.* (ENV) (GP11) ACTION idea 5.5.5.5 Reexamine current land use designations for areas susceptible to flood damage and rezone as appropriate in order to avoid the inappropriate development of lands and provide for adequate drainage and reduction of flood damage.* (ENV) (V08) ACTION idea 5.5.5.6 Evaluate storm water management policies and if possible align with water conservation strategies. (V01) Alternative Action Idea 5.5.5.2 Require detention facilities and/or other stormwater control measures when necessary to minimize damage to natural drainage systems. Town of Oro Valley Oro Valley Stormwater Utility Commission Overview Stormwater Mission To provide safe and efficient management of the Stormwater Utility, to promote and protect life and safety, water quality, and the Town’s working and natural environments before, during, and after the occurrence of storm events in accordance with all Town codes, standards and policies. Town of Oro Valley Stormwater Infrastructure 18 miles of FEMA designated floodplains/levees, 4.5 miles of underground storm pipe, 5 miles of public drainage easements, 460 street catch basins/inlets, 180 culverts, 77 detention basins, 53 first flush devices, and 191 outfalls, and 215 lineal miles of mapped washes. Town of Oro Valley Stormwater Responsibilities Inspection and preventative maintenance; Facility repair and replacement; Recordkeeping; Emergency response; Determination of responsibilities; and Suitably trained and sufficiently available staff. Town of Oro Valley Program must address Detention structures; Drainage ways (washes, and ditches); Storm sewers and culverts; Inlets and catch basins; Outlet structures; And Streets (sweeping). Stormwater Maintenance •Stormwater facilities operate effectively only if they are properly maintained. •Regular maintenance prevents system failures and decreases the risk of stormwater damage. •Inspection and maintenance programs must be established for all stormwater facilities. Town of Oro Valley 15-24-13 Stormwater Utility Fee System E. Purposes of the Fund. 1.All costs of implementation and administration of the Stormwater Management Plan, including the establishment of reasonable operating and capital reserves to meet unanticipated or emergency stormwater management requirements. There shall be a reserve fund of fifteen percent (15%) of the collected annual stormwater fees as specified under Section 15-24-10 of this code. 2.Inspection and enforcement activities. 3.Billing and administrative costs. 4.Other activities that are reasonably required to accomplish the mission of the Stormwater Management Plan. Town of Oro Valley Personnel 3.85 FTE Full Time Mike Todnem P.E.Stormwater Engineer Fritz Laos Stormwater Civil Engineer Rob Wilson Stormwater Civil Engineer Technician Part Time Phil Trenary Operations Manager Carmen Ryan Stormwater Support Stormwater Staff -Tasks Town of Oro Valley Outside Professional Services Maintenance Stormwater Operations –Buffelgrass –Stormwater Cleanup –Chipping –Vegetation –Wash Clean up –Sweeping –Weed Spraying –Grading shoulders & roads Town of Oro Valley Outside Professional Services Administrative Support Billing Services - –Monthly Processing –IVR/On Line Processing –Delinquent Billing Processing –Credit Card Processing Financial Services - –Human Resource Management –Annual Financial Audit / Support –Invoice Processing –Payroll –IT Service •Computers, software, etc –Legal Service and Review Town of Oro Valley GIS Services – Mapping ALL •Stormwater Utilities •CFS Flows •Interactive Maps Stormwater Maintenance Small Capital Projects Highland Wash Lambert Lane Culvert Cleaning –Contract Northern Avenue Town of Oro Valley Vehicle Reserve Capital replacement cost for equipment –Placed in reserve to be used for future Stormwater equipment purchase Thank you Commissioner Stankiewicz: Action item 3.3.8.1 - Jim's change ("slowing" to "managing") is good. Q=AV. Action item 3.3.12.3 - Jim's change is good. Hydro seed not always the answer unless maybe they're thinking of immediate post-construction. Consider adding examples to alternative language? Action item 3.6.2.1 - Jim's comment is that this may be repetitious. (Soapbox Moment Warning) I suggest that it may be good to have important concepts repeated in different places in the final document, where they are relevant. Many important stormwater concepts are contained in the current general plan, but the concepts are isolated and may be easily overlooked. Repetition of, or reference to, important stormwater concepts can be insurance against neglect of those concepts. Action item 5.5.5.2 - Jim's change is good, more comprehensive. I want to suggest an idea regarding the Policy 5.5.5 which deals with design of storm water systems. (Another Soapbox Warning) The historical stormwater (quantity) requirement for development is to limit post-development peak discharge to not greater than pre-development. What would you think about a process to incorporate measures to alleviate existing stormwater problems downstream of new development? Could be complicated and controversial but perhaps we can discuss it.