June Monthly Meeting
Jun
21
12:00 PM12:00

June Monthly Meeting

From June 21st to 22nd 2018, Geotech will present the 10th Annual Geotech Field Days event. 2 days of equipment demos and hands-on training on a wide variety of Geotech state-of-the-industry instruments, plus food, drink, and comprehensive networking are all part of this prestigious event. And it's all FREE! You and your colleagues are invited to join us to learn more about our product lines and interact directly with manufacturers and esteemed national service providers.

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NGWA DARCY LECTURE
Apr
16
4:00 PM16:00

NGWA DARCY LECTURE

Many of us have been awed by the stunningly beautiful view of alpine lakes and streams – and they are not just beautiful. Nearly half of the world population relies on rivers originating in high mountains for water supply. Source areas of mountain streams have rugged topography with sparse soil and vegetation covers, and were once considered “Teflon basins” that have minimum capacity to store groundwater. Over the past decade or so, a new understanding of alpine hydrogeology has been emerging based on detailed field observations around the world. Alpine basins actually have important aquifer units that provide temporary storage of rain and melt waters from snowpack and glaciers. Gradual release of water from these aquifers sustains stream flow during dry or cold periods, and is critically important for water supply and aquatic habitats in downstream regions. Due to rugged terrain and severely limited vehicle access, alpine hydrogeologists need to rely on creative methods to investigate groundwater, such as geophysical imaging techniques or observation of surface-groundwater interaction. This lecture will demonstrate how we can gain valuable insights into groundwater in challenging environments and develop conceptual understanding of hydrological systems. These ideas and approaches will have broad applicability in a variety of environments, where hydrogeologists are faced with challenging conditions.

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University of Colorado Benson Earth Sciences April Colloquium
Apr
13
4:00 PM16:00

University of Colorado Benson Earth Sciences April Colloquium

Many of us have been awed by the stunningly beautiful view of alpine lakes and streams – and they are not just beautiful. Nearly half of the world population relies on rivers originating in high mountains for water supply. Source areas of mountain streams have rugged topography with sparse soil and vegetation covers, and were once considered “Teflon basins” that have minimum capacity to store groundwater. Over the past decade or so, a new understanding of alpine hydrogeology has been emerging based on detailed field observations around the world. Alpine basins actually have important aquifer units that provide temporary storage of rain and melt waters from snowpack and glaciers. Gradual release of water from these aquifers sustains stream flow during dry or cold periods, and is critically important for water supply and aquatic habitats in downstream regions. Due to rugged terrain and severely limited vehicle access, alpine hydrogeologists need to rely on creative methods to investigate groundwater, such as geophysical imaging techniques or observation of surface-groundwater interaction. This lecture will demonstrate how we can gain valuable insights into groundwater in challenging environments and develop conceptual understanding of hydrological systems. These ideas and approaches will have broad applicability in a variety of environments, where hydrogeologists are faced with challenging conditions.

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VAN TUYL LECTURE SERIES
Apr
12
4:00 PM16:00

VAN TUYL LECTURE SERIES

Many of us have been awed by the stunningly beautiful view of alpine lakes and streams – and they are not just beautiful. Nearly half of the world population relies on rivers originating in high mountains for water supply. Source areas of mountain streams have rugged topography with sparse soil and vegetation covers, and were once considered “Teflon basins” that have minimum capacity to store groundwater. Over the past decade or so, a new understanding of alpine hydrogeology has been emerging based on detailed field observations around the world. Alpine basins actually have important aquifer units that provide temporary storage of rain and melt waters from snowpack and glaciers. Gradual release of water from these aquifers sustains stream flow during dry or cold periods, and is critically important for water supply and aquatic habitats in downstream regions. Due to rugged terrain and severely limited vehicle access, alpine hydrogeologists need to rely on creative methods to investigate groundwater, such as geophysical imaging techniques or observation of surface-groundwater interaction. This lecture will demonstrate how we can gain valuable insights into groundwater in challenging environments and develop conceptual understanding of hydrological systems. These ideas and approaches will have broad applicability in a variety of environments, where hydrogeologists are faced with challenging conditions.

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Mar
31
12:00 PM12:00

Poudre Pour

The craft brewers in Northern Colorado and the Poudre Heritage Alliance understand that “Good Water = Good Beer!” The Poudre Pour highlights craft brews and the major ingredient that makes the stouts, lagers and ales so tasty…WATER from the Poudre River!

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National Groundwater Awareness Week
Mar
11
to Mar 17

National Groundwater Awareness Week

Life as we know it would be impossible without groundwater. It is the world's most extracted natural resource, and it supports our ecosystems. Don't take groundwater for granted. Pay it forward during National Groundwater Awareness Week, March 11-17, 2018, by letting others know the importance of groundwater and asking them to pass it along.

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VAN TUYL LECTURE: MEETING THE CHALLENGES OF THE WORLD’S GROWING DEPENDENCE ON GROUNDWATER
Mar
8
4:00 PM16:00

VAN TUYL LECTURE: MEETING THE CHALLENGES OF THE WORLD’S GROWING DEPENDENCE ON GROUNDWATER

Groundwater is the primary source of drinking water for almost half the world’s people, essential to irrigated agriculture, and provides enormous environmental benefits. With a growing population and changing climate, the world needs groundwater more than ever. Dr. Alley looks at examples from around the world to uncover the main issues surrounding groundwater depletion and contamination. Included are lessons learned about groundwater governance and stories of groups and individuals who are making a difference protecting the world’s groundwater for present and future generations.

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BOE Construction Rulemaking Stakeholder Meeting
Feb
27
10:00 AM10:00

BOE Construction Rulemaking Stakeholder Meeting

  • Division of Water Resources Conference Room 814 (map)
  • Google Calendar ICS

Staff of the Board of Examiners will hold a public stakeholder meeting to discuss a proposed change to Rule 6.3 of the Construction Rules (2 CCR 402-2) at 10:00 am on Tuesday February 27, 2018 in Room 814 of 1313 Sherman Street, Denver, CO 80203.  If you cannot attend in person you can dial 303-866-3581 x7618 at 10:00 am to join a teleconference.

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CEMS February Luncheon
Feb
13
11:30 AM11:30

CEMS February Luncheon

  • US EPA Region 8 Conference Center (map)
  • Google Calendar ICS

Cleanup and Redevelopment of the London Mine

Joseph G. Harrington, President, MineWater LLC

For more information click HERE

MineWater entered into a Consent Order on Compliance/Settlement Agreement for London Mine with CDPHE in fall 2016. The COC/SA is the framework for cleanup of the historic mine property, guides future mining development and unlocks non-tributary water rights at the Mine. The Agreement provided for WQCC review of the water quality standards for the receiving streams to consider feasibility based standards, and enabled prospecting activities (drilling) permitted in consultation with CDPHE and DNR/DRMS authority under mining regulations.

Since entering the Agreement, MineWater has developed two large dewatering wells (24” boreholes, 1000 feet depth) at the western edge of the 70 miles of tunnels comprising the mine workings to prevent intrusion of limestone-saturated groundwater into the pyritic mine workings. Bypassing the alkaline water around the workings and dropping the phreatic groundwater surface prevents the degradation of this good water resource, enables MineWater to focus on the remaining worst-quality water without contending throughout the in-situ treatment process with the large flows previously intruding into the Mine, and delivers more than double the previous low-flow to the streams. In this way the quality of the stream and the capacity of the stream to cope with historic metals pollution is improved, and the amount of loading from the workings is reduced.

This combined regulatory and technical strategy provides a potential template for reclamation of other historic abandoned mines throughout the West.

Mr. Joseph Harrington is President of MineWater. MineWater researches, develops and implements innovative cleanup strategies for addressing environmental impacts of abandoned hard rock mine sites. Mr. Harrington led the design/build for the Gold King spill interim clean-up under emergency conditions which delivered a fully operational water treatment plant within 21 days. Mr. Harrington has published over 40 papers, conference talks and proceedings on strategies for addressing mine waste pollution issues. Mr. Harrington invented 6 patents on mine drainage source treatment. Mr. Harrington also led the 4 year in-situ bioremediation cleanup of the Globe Smelter in Denver Colorado, one of the first hydrometallurgical smelters in the United States to have been remediated, delisted from the National Priorities List (Superfund) and fully redeveloped for commercial use. 1,000 jobs have been created at the 80 acre Globe Smelter site that was slated for 300 years of pump and treat in the original (1993) ROD. Mr. Harrington was a 2004 delegate of the United States to the International Atomic Energy Agency for the preparation of the uranium guidance document (Uranium Redbook). Mr. Harrington was an advisory board member of Energy Metals and then for Uranium One (ending before the well-publicized sale to Russian interests). Mr. Harrington completed studies at the University of Idaho in biohydrometallurgy (undergraduate, magna cum laude) and conducted graduate studies in metallurgy (masters work at University of Idaho) and medicine (first year, Loma Linda University). Mr. Harrington received the John B. George award in metallurgy (University of Idaho), and was awarded a Barry Goldwater fellowship (1995).

LOCATION: The EPA Conference Center located on the 2nd floor of the EPA Region 8 Headquarters building at 1595 Wynkoop St. When entering the building, visitors will be asked by the building security guards to display valid photo identification, pass through airport type security machines, sign in at the lower front desk, and wear a temporary EPA visitor badge. Then please proceed to the second floor to register with the CEMS representative.

MEETING FORMAT: Members may either bring their own lunch and attend the meeting for no charge, or they may request that CEMS order a box lunch for them. The cost of the box lunch for members is $16.00; for non members, $19.00 (note price increase).

RESERVATIONS: PLEASE give your name, company name and phone number via email to admin@coems.org. PLEASE INDICATE IF YOU ARE RESERVING A BOX LUNCH OR BRINGING YOUR OWN. Reservations must be received BEFORE Friday, February 9, 2018 at 5:00PM. No reservations will be taken after this date! Payment of $16.00 for members, $19.00 for non-members will be accepted at the door with prior reservation. Please cancel your reservation by Friday, February 9, 2018 if you are unable to attend. It is the policy of the Society to bill for meals reserved but unclaimed.

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Aug
31
12:00 PM12:00

2017 Water Data Access How-To Webinar

 

Learn where and how to use the state's water data by joining us for this how-to webinar. We'll train to use Colorado's Decision Support Systems (CDSS) and take a close look at the Division of Water Resources' HydroBase Data Viewer under the guidance of John Rodgers, DWR's HydroBase coordinator, and Chris Brown, DWR's GIS program manager. Log in over lunch, come ready to learn and bring your questions!

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Aug
23
5:00 PM17:00

Summer Social

Wednesday, August 23rd
Starting at 5:00pm
 

Join your fellow CGWA associates for this year’s Summer Social at
Mountain Toad Brewing in Golden.
Visit with old friends, catch up on recent events, and meet some new members.

Mountain Toad Brewing is located at 900 Washington Ave.
Parking is available on Washington Ave., or after hours at the OnTap Credit Union lot next door or American Mountaineering Center lot across the street.
 
CGWA will have reserved tables in the outdoor patio area, weather permitting.
The association will provide appetizers and the first round of beers.
The food truck vendor, Jessie’s Smokin’ NOLA, is onsite for dinner options.

Please feel free to bring your spouse/significant other.
We look forward to seeing you there.
 
Those interested in tubing on Clear Creek in Golden prior to the event, contact Ralf Topper at ralf@centurylink.net
Tubes & PFDs can be rented right next to the brewpub.

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