Animas River: e.Coli is a culprit in water quality

May 15, 2014
E.coli Bacterium

E.coli Bacterium

From The Durango Herald (Dale Rodebaugh):

The main focus of the San Juan Watershed Group research is E. coli and nutrients – nitrogen and phosphorus. Certain strains of the former can cause nausea, fever and vomiting. The latter, in excess, robs water of oxygen needed by aquatic life.

The group tested only for E. coli last year. This year, nutrients were added. So far this year, the E. coli level has been well within limits at the New Mexico line, May said.

A Colorado partner, the Animas Watershed Partnership, which works on water-quality projects in New Mexico and with the Southern Ute Indian Tribe, also is following the work of May’s group, now in its second year, said Ann Oliver, coordinator of the Colorado project.

Oliver said her group is searching for funding for similar research at two points upstream – on the Animas upstream of the Florida River and on the Florida before it reaches the Animas, she said…

The hope is to get enough money to test for E. coli and nutrients at the Animas and Florida sites and pay for genetic testing at Bondad to determine the source of E. coli contamination, Oliver said. May’s volunteers measure the amount of E. coli and nutrients at the site here, but the organization can’t afford the cost of source analysis.

Last year, May’s volunteers sampled water once a week from April through October on the Animas at the state line (Bondad), Aztec and Farmington and on the San Juan River at Farmington and Hogback Canal, the point where the San Juan enters the Navajo Nation…

Laboratory tests can determine through DNA analysis if E. coli bacteria come from animals – and which animals – or from human sources. Tests last year in Colorado showed that E. coli met the state’s standards, indicating that contamination was originating downstream in New Mexico.

In fact, all 40 samples collected at Hogback Canal tested positive for human bacteria found in feces, the report said. Nearly all 40 samples from Farmington and 26 from Aztec tested positive for the human bacteria.

A story in the The Daily Times of Farmington quoted Mike Stark, the San Juan County operations officer, as saying that officials know that aging septic systems and illegal septic dumping are potential problems.

David Tomko, retired from the New Mexico Environment Department, now the San Juan Watershed Group coordinator, is cautious. Tests for human fecal matter in the Cimarron and Rio Grande rivers found no human waste, so conclusions about the Animas and San Juan readings require confirmation, he said.

The heavy metals leaching from shuttered hard-rock mines around Silverton present no problem at the state line because of dilution, Tomko said. The level of those metals never has exceeded the limit, he said.

Peter Butler, former chairman of the Colorado Water Quality Control Board and a coordinator of the group looking for a solution to the toxic waste draining from Silverton mines, said heavy metals are diluted enough to be below limits by the time the Animas River reaches Durango.

Even heavy-metal contributions from Lightner Creek don’t push Durango over the limit, Butler said.

May’s group also tests water for turbidity, pH, optical brighteners (detergent additives that brighten colors) and total dissolved solids.

On Monday, the Animas River water didn’t look as cloudy when May poured it from the dipper into sample bottles as it did flowing in the channel.

Last year at about the same time – the spring runoff – the Animas water registered 13.5 turbidity units, May said. During the later monsoon season, she found upward of 600 units.

Turbidity is measured by a nephelometer, an apparatus that records size and concentration of particles in a liquid by analyzing the refraction of light beamed into it.

More Animas River coverage here and here.


Denver, Aurora and Colorado Springs all utilize non-potable irrigation in city operations

April 29, 2014
Metropolitan Wastewater Reclamation District Hite plant outfall via South Platte Coalition for Urban River Evaluation

Metropolitan Wastewater Reclamation District Hite plant outfall via South Platte Coalition for Urban River Evaluation

From the Colorado Springs Business Journal (Marija B. Vader):

Colorado Springs Utilities, along with Denver Water and the city of Aurora, all reuse a significant amount of water after it has gone through a treatment plant. It’s called non-potable water and as such is not acceptable for public consumption, cooking or bathing.

The wastewater system collects all the water from homes and businesses, then treats it to conditions set by the state health department. In most treatment centers throughout the state, the treated, non-potable water is then released back to the river or source whence it came. In Colorado Springs, Denver and Aurora, that water is recaptured and reused to water golf courses, public parks, cemeteries and the like. The systems do not extend to residential uses.

“The cost is extremely prohibitive to build such a system,” said Steve Berry of CSU. “Most customers would not tolerate the rate impact.” A system would cost in the hundreds of millions of dollars, he added…

The non-potable system in Colorado Springs provides a capacity of 13 million gallons a day during the summer. The Colorado Springs system has 26 miles of distribution pipelines that stretch to Bear Creek Regional Park, Kissing Camels Golf Course, Patty Jewett Golf Course, the U.S. Olympic Training Center, Peak Vista Community Health Centers, El Paso County, Memorial Park, Evergreen Cemetery, Colorado College, Valley Hi Golf Course and others. This program was put together beginning in 1961. Utilities’ charge for non-potable water is significantly less than for treated water.

Aurora’s non-potable system is used to irrigate parks, said Greg Baker, manager of public relations for the Aurora Water Department.

“It’s 5 million gallons a day we can save from potable use,” Baker said. The city’s irrigation season stretches from May 1 through Oct. 30.

“It makes perfect sense,” Baker said. “We don’t always want to apply potable water for irrigation.”

Denver’s non-potable system has a current capacity of 30 million gallons a day, expandable to 45 million gallons a day. The distribution system includes more than 50 miles of pipe with two major pump stations and storage tanks, according to Denver Water’s website. The system began operating in 2004, and when the recycled water system build-out is complete, Denver Water’s recycled supply will account for about 5 percent of the city’s total water volume annually, according to Travis Thompson, media coordinator for Denver Water.

More wastewater coverage here and here.


It’s Wastewater Worker Recognition Week

April 21, 2014

Salida: Wastewater treatment plant earns Waste Water System of the Year from the Colorado Rural Water Association

February 12, 2014
Salida Colorado early 1900s

Salida Colorado early 1900s

From The Mountain Mail:

The Salida Wastewater Treatment Facility received the 2013 Colorado Waste Water System of the Year Award from the Colorado Rural Water Association Feb. 5 at the Colorado Rural Water Association’s annual conference. The award follows the completion of the city’s wastewater plant overhaul and construction project, which was completed in 2013 and was the largest capital project to date for the city of Salida.

Randy Sack, plant manager, said about winning the award, “We really appreciate this award. It makes us proud that our hard work has been recognized. The crew really deserves this recognition.”

More wastewater coverage here.


Craig: Water and sewer rates climb in 2014

January 12, 2014
Yampa River east of Maybell March 2008

Yampa River east of Maybell March 2008

From the Craig Daily Press (Erin Fenner):

Craig City Council did its first reading of an ordinance Dec. 10 that would permit the city to raise water rates by about 6 percent and wastewater rates by about 12 percent.

The average water-use fee for residents is approximately $55 per month and $20 for wastewater, Craig City Manager Jim Ferree said.

Charter Communications req­uires the city to perform an annual review of their rates, Ferree said. Red Oak Consulting studied the rates, but the city worked to push the rates up less than what was suggested by the study, he said.

“We’ve been raising rates consistently, especially ever since we put in the water treatment plant,” Mayor Terry Carwile said.

The city has to make sure they’re keeping up with changing regulations and keeping a sufficient reserve for their water and wastewater fund, he said.

The rise in water and wastewater rates is because of new environmental regulations, paying back loans on the new water treatment plant and because of the increasing cost of treatment chemicals, Ferree said.

More infrastructure coverage here.


Pueblo plans $1.08 million addition to wastewater plant to meet stricter discharge standards

December 13, 2013
Blue-Green algae bloom

Blue-Green algae bloom

From The Pueblo Chieftain (Chris Woodka):

The city plans to build a $1.08 million addition at the wastewater treatment plant next year to meet long-term changes in water quality rules. The new enclosed concrete plant is being completely funded by a state grant through a $15 million appropriation designed to help small municipalities meet new state requirements which were adopted to comply with federal regulations.

“We’re not cutting any corners with this plant,” said Gene Michael, Pueblo wastewater director.

He said $80,000 will go toward design and engineering, and the plant will have to meet all criteria for new construction. The plant is expected to be complete next summer in order to comply with state requirements to use the grant money prior to 2016.

The regulations concern the concentration of nitrogen and phosphorus — both of which are found in human waste — that are in water released from the city’s treatment plant. Standards adopted this year require less than 15 parts per million nitrogen and 1 ppm phosphorus. The city completed ammonia removal facilities this year that meet those standards, Michael said. By 2022, the standards tighten to 1 ppm nitrogen and 0.17 ppm phosphorus.

Biological processes are at odds in reaching those levels, Michael explained, calling it the “zen of wastewater treatment.”

To meet the nitrogen standard, a fermentation process will be used. Further chemical treatment and filtration, similar to a drinking water plant, will be needed to bring phosphorus to the lower level, he said. The state grant is sufficient to provide fermentation and chemical treatment, but the estimated cost of filtration, about $9.3 million, will have to be dealt with later.

More wastewater coverage here.


Cortez: Some sewer rates skyrocket

December 12, 2013
Cortez early 1900s via Crow Canyon Archaeological Center

Cortez early 1900s via Crow Canyon Archaeological Center

From the Cortez Journal (Tobie Baker):

Cortez City Manager Shane Hale said municipal leaders have been meeting with CSD officials to fully understand the impacts new rates would have on city facilities.

“Preliminarily, it looks as though the majority of city buildings will be assessed with exorbitant increases, ranging from four to eight times what the city currently pays for this service,” Hale said.

The most dramatic increases will be felt at the recreation center, where the sewer rates would increase from an average of $93 per month to $762 per month. City Hall, Cortez Police Department, municipal pool and city service center are all projected to see rates increase four-fold.

“From our standpoint, these increases are excessive,” Hale said.

Current sewer rates for the city and other businesses are based on actual metered water usage. City Hall currently uses 3,000 to 4,000 gallons per month of water, approximately half what a single family home is presumed to use.

“The bill for City Hall will go from $29 a month to a proposed $116 per month, or four times what a single family home pays,” Hale said.

Taxpayers would be responsible for picking up the city sewer tab, with total annual municipal sewer collections increasing from $27,600 in 2013 to $52,500 in 2014, according to CSD budget forecasts.

CSD’s new proposed sewer fees would be billed starting Jan. 1. Commercial and municipal rates would be determined based on six different classifications, with a majority of the new rates based on square footage. Hotel charges, however, are linked to the number of units, the hospital is related to the number of beds, and schools and day cares are subject to student capacity. And new rates for the Cortez Journal will be determined based on the number of employees.

CSD officials have indicated that each business type is awarded a Single Family Equivalency (SFE) ratio based on American Water Works Association guidelines. The SFE ratio is then multiplied by the square footage, number of employees or number of beds, for example, which is then multiplied by $30 to determine the business’s monthly sewer rate.

According to CSD budget figures, annual sewer collections from area schools are also expected to nearly double starting next year. CSD officials project the school district’s annual rates will increase from $19,200 in 2013 to $37,920 in 2014…

New residential sewer rates, including single-family residences, duplexes, apartments and mobile homes, contain a flat $30 monthly sewer fee without regard to the number of occupants.

Under the new rate structure, a 10,000-square-foot warehouse would pay $12 per month for sewer; a 1,000-square-foot beauty salon, $51 per month; a 200-seat movie theater, $18 per month; a 5,000-square-foot nursing home, $216 per month; a five-bay self-serve car wash and a 25-space RV park with full hookups, $300 per month; a 5,000-square-foot restaurant or bar, $364.50 per month; a 50-unit hotel with restaurant, $1,035 per month; a 50-unit hotel without a restaurant, $720 per month; and a 1,000-square-foot laundry mat, $357 per month.

More wastewater coverage here and here.


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