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Seminar Brochure
Presentation Topics
Control Panels! What’s in There? Why Did My Pump Stop Working?
Mike Ross, Lee Mathews Equipment
This three hour session will
discuss the basics of control panel design and how to identify the internal
components of your control panel, why each is there, and how the major
components operate, including motor starters, disconnects, overloads,
relays, & VFDs and an introduction on how to read control panel schematics,
and how to troubleshoot common issues found in water and wastewater
treatment equipment control panels.
Deterioration of Wastewater Treatment and Collection System Assets:
Knowing Where and How to Look
Bob Maley, Corrosion
Probe, Inc.
Wastewater treatment and collection system assets,
including concrete, metals, and protective coatings, deteriorate due to
several mechanisms including; biogenic corrosion, acidic attack,
carbonation, and abrasion erosion. Protective coatings typically fail as a
result of improper material selection / poor surface preparation / poor
application practices. This presentation will offer insight relative to;
identifying problematic assets; assessing exposure conditions; and
predicting rates of corrosion.
Bugs and Blooms: Creating a Fertile Environment for the
Regulation of Nutrients
EPA’s nationwide initiative to develop water
quality criteria for nitrogen and phosphorus
Caroline Byus & Bob Weaver,
Leonard Rice Engineers, Inc.
Nitrogen and phosphorus (nutrients)
are naturally occurring elements essential for plant and animal growth. But,
when nutrients are introduced into the aquatic environment in quantities
above what is needed, accelerated growth of algae, and other plants, can
impair the suitability of the water for municipal, agricultural,
recreational and aquatic life uses. This discussion will focus on the
growing problem of nutrients in the aquatic environment and EPAs nationwide
initiative to develop nutrient water quality criteria.
Colorado’s Approach: Delegation of Regulatory Authority to
Aquatic Insects
Colorado’s proposal to establish nutrient criteria based
on macroinvertebrate health indices and
interim steps to reduce nutrient
loading to lakes, reservoirs and streams
Caroline Byus & Bob Weaver,
Leonard Rice Engineers, Inc.
The primary complicating factor for
development of numeric nutrient criteria is that nutrients are not directly
toxic to aquatic life, nor are they solely responsible for the excessive
growth of aquatic plants. For this reason, nutrient criteria development
poses a difficult challenge to the EPA and states across the nation.
Colorado regulators, working with a group of interested stakeholders and the
EPA, have developed a unique approach to nutrient criteria development and
interim steps for reducing nutrient loading to the state’s lakes, reservoirs
and streams. This discussion will focus on Colorado’s approach to nutrient
regulation and associated impacts to regulated entities.
Gore Creek & the Eagle River: What the Bugs are telling us about
Nutrients (do they want more or less?) A case study –
the relationships
between nutrients and macroinvertebrate health in Gore Creek and the Eagle
River
Caroline Byus & Bob Weaver, Leonard Rice Engineers, Inc.
The Eagle River Water & Sanitation District’s “Eagle River/Gore Creek
Nutrient and Macroinvertebrate Study” focuses, in part, on understanding
nutrient sources and their impacts to macroinvertebrate health within the
Eagle River watershed. The study was designed, in part, to characterize
stream reference (minimally impacted) nutrient and aquatic health conditions
and to bracket potential nutrient loading sources, including the District’s
waste-water treatment facilities, and sources associated with land use
activities such as urban runoff, construction activities, golf courses and
tributary drain-ages. This discussion will focus on the District’s findings
and the relationship between nutrients and macroinvertebrate health in Gore
Creek and the Eagle River.
Contact Seminar Coordinator Jim Edwards with questions:
jedwards@erwsd.org • 970-477-5414 (phone) • 970-476-4089 (fax)
Register online at www.rmwea.org or mail registration form and check,
before October 1, to:
Jim Edwards, Vail Wastewater Treatment Plant
Supervisor
Eagle River Water & Sanitation District, 846 Forest Road, Vail
CO 81657
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