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Truckee Meadows stormwater program reports monitoring costs rising; watershed assessments show sensitivity to precipitation events
Summary
City and county stormwater coordinators told the commission that monitoring costs are rising and watershed assessments identified erosion vulnerability in select reaches, prompting possible future funding decisions and targeted restoration projects.
City of Reno staff and the Truckee Meadows stormwater committee briefed the Northern Nevada Water Planning Commission on June 4 about the regional stormwater quality program, monitoring results and recent watershed assessments.
Chris Holman, senior engineer at the city of Reno and coordinator of the Truckee Meadows stormwater permit coordinating committee, said the region operates under an MS4 permit that authorizes stormwater discharges to the Truckee River and tributaries. "We have a MS 4 permit," Holman said, and the committee provides annual reports to NDP.
Holman described a $262,500 award from the Western Regional Water Commission (WRWC) for the current year. Of that, $204,500 was allocated to stormwater quality, with substantial portions funding the water‑quality monitoring program run by Balanced Hydrologics. Holman said the monitoring agreement for the year totals about $237,000 and that monitoring and lab costs are taking a larger share of the overall budget year over year.
Program budget line items Holman listed include $178,000 from WRWC for monitoring, $11,000 for a USGS North Truckee drain stream gauge maintenance cooperation, $11,500 for miscellaneous consultant services, $4,000 for field supplies, $55,000 to fund a Reno staff coordinator position and $3,000 for public outreach. Holman also said WRWC provided an additional $65,000 for watershed assessments.
On monitoring, Balanced Hydrologics samples 12 tributary sites and four urban outfalls using a combination of auto samplers and grab samples. Holman said the committee is commissioning a water‑quality trends analysis to identify problem areas and help allocate sampling resources more efficiently.
Watershed assessments performed by NCE examined nine reaches. Holman said most reaches showed little change from prior assessments except Whites Creek, where a localized extreme precipitation event caused erosion and head cutting. He noted that the sensitivity seen in several creeks underscores the importance of riparian vegetation and appropriate setbacks to allow reaches to respond to precipitation events.
Holman highlighted recent and planned projects that follow the assessments: a completed 1,500‑foot restoration of a heavily modified reach of Chalk Creek using riprap, boulders and revegetation, and a newly funded three‑year tall white top weed management project in the Chalk Creek watershed in partnership with Truckee Meadows Parks Foundation and funded by a Truckee River Fund grant.
Commissioners asked about seasonal timing of monitoring and about whether an MS4 permit renewal could increase workload. Holman said sampling is concentrated during precipitation months and that early indications from peer jurisdictions do not show major new permit requirements, although he acknowledged continued funding pressure for projects.
Commissioner Amlow emphasized the need to move from monitoring to implementation and asked what additional funding would be needed to make more visible improvements; Holman said jurisdictions are short of funding and are developing capital improvement plans and pursuing grants where possible.
