The Langdon City Commission met with Moore Engineering representatives in a special meeting to discuss the future of Langdon City Water.
Posted on 1/24/15
The three options that were presented to the commission were buying into the Devils Lake water or using the Munich aquifer as the new water source. The Munich aquifer option has two options in itself; either doing the project with Northeast Rural Water if they agree to the project or doing the project alone.
The Moore Engineering representatives provided the newly available data on the test sites of the Munich aquifer and meeting updates with Devils Lake Water.
The representatives explained to the commissioners the three options that are currently being suggested over the course of the two hour meeting.
The first option of buying into the Devils Lake Water was presented. This option would include piping to the Devils Lake well field a subsequent well. Langdon would also be building an extensive pipeline from the north end of Devils Lake to Langdon with a booster station at some point along the line to maintain water pressure as it travels.
As it stands the city would be buying into Devils Lake’s capacity and in the future when and if that capacity needs to be increased Langdon would have to assist with those expenses relating to increasing capacity.
The other option of tapping into the Munich Aquifer has it’s own lists of musts which would need to occur.
Moore Engineering received the water test samples and conducted the 24 hour pumping test. The water quality from that pumping test is still being examined.
As far as Moore Engineering is concerned the water quality from the Munich aquifer will have similar challenges of treatment that the water currently being supplied from Mount Carmel has with the only perk being that the challenges will be relatively stable as the Munich aquifer is ground rather than surface water.
The Senior Process Engineer who has been working on this project for Moore Engineering explained that the Mount Carmel water and the Munich Aquifer water were similar in their content of inorganic compounds meaning sulfides and other minerals.
Mount Carmel Dam, being surface water, has a large organic component, such as algae, which attributes to the large fluctuations in how it is treated chemically prior to use.
“The Munich water will be hard to treat but it is no different than the water that has been supplied to residents over the past few years” the Senior Process Engineer explained.
With the Munich aquifer the recommendation is to draw the water from the north end of the aquifer as that water is not as hard as water drawn from other areas of the aquifer.
Moore Engineering also recommends that the City of Langdon either retrofit or build an entirely new water treatment facility which would use a new method of treating water instead of the current method utilized by the city. The new method of water treatment uses membranes to filter and treat the water. The representatives explained that to retrofit the current plant to utilize the membrane system of water treatment would most likely require custom fitting and on site construction of the parts. The current plant, which is well over 30 years old, would most likely require an addition to house the new membrane system.
Moore Engineering explained to the commission that with any of the proposed options that the water treatment plant would be able to decrease staff. The Devils Lake option has the biggest decrease in staff with the current water treatment plant needing only two workers to maintain and supervise the water quality.
Moore Engineering informed the city commissioners that the Munich Aquifer option would be the cheaper to complete than the Devils Lake water option should Northeast Rural Water decide to join the city on the endeavor. The representatives explained that the projects would be eligible for at least 75 percent funding in the form of grants from the State.
The Langdon City Commissioners agreed that the most important aspect of the decision to be made was the water quality that would be provided to the Langdon area residents who use city water.
Moore Engineering will provide the same presentation given to the Langdon City Commission to the Northeast Rural Water. The Langdon City Commission will then discuss moving forward with any of the options that they were presented with Northeast Rural Water.