Wednesday, April 16, 2014
PLACERVILLE, CALIFORNIA
99 CENTS

UCD study: Cattle grazing and clean water are compatible on public lands

By
June 29, 2013 | 6 Comments

Cattle grazing and clean water can coexist on national forest lands, according to research by the University of California, Davis.

The study, published June 27 in the journal PLOS ONE, is the most comprehensive examination of water quality on national forest public grazing lands to date.

“There’s been a lot of concern about public lands and water quality, especially with cattle grazing,” said lead author Leslie Roche, a postdoctoral scholar in the UC Davis Department of Plant Sciences. “We’re able to show that livestock grazing, public recreation and the provisioning of clean water can be compatible goals.”

Roughly 1.8 million livestock graze on national forest lands in the western United States each year, the study said. In California, 500 active grazing allotments support 97,000 livestock across 8 million acres on 17 national forests.

“With an annual recreating population of over 26 million, California’s national forests are at the crossroad of a growing debate about the compatibility of livestock grazing with other activities dependent upon clean, safe water,” the study’s authors write.

“We often hear that livestock production isn’t compatible with environmental goals,” said principal investigator Kenneth Tate, a Cooperative Extension specialist in the UC Davis Department of Plant Sciences. “This helps to show that’s not absolutely true. There is no real evidence that we’re creating hot spots of human health risk with livestock grazing in these areas.”

The study was conducted in 2011, during the grazing and recreation season of June through November. Nearly 40 UC Davis researchers, ranchers, U.S. Department of Agriculture Forest Service staff and environmental stakeholders went out by foot and on horseback, hiking across meadows, along campsites, and down ravines to collect 743 water samples from 155 sites across five national forests in Northern California.

These areas stretched from Klamath National Forest to Plumas, Tahoe, Stanislaus, and Shasta-Trinity national forests. They included key cattle grazing areas, recreational lands and places where neither cattle nor humans tend to wander.

UC Davis researchers analyzed the water samples for microbial and nutrient pollution, including fecal indicator bacteria, fecal coliform, E. coli, nitrogen and phosphorous.

The scientists found that recreation sites were the cleanest, with the lowest levels of fecal indicator bacteria. They found no significant differences in fecal indicator bacteria between grazing lands and areas without recreation or grazing. Overall, 83 percent of all sample sites and 95 percent of all water samples collected were below U.S. Environmental Protection Agency benchmarks for human health.

The study noted that several regional regulatory programs use different water quality standards for fecal bacteria. For instance, most of the study’s sample sites would exceed levels set by a more restrictive standard based on fecal coliform concentrations. However, the U.S. EPA states that E. coli are better indicators of fecal contamination and provide the most accurate assessment of water quality conditions and human health risks.

The study also found that all nutrient concentrations were at or below background levels, and no samples exceeded concentrations of ecological or human health concern.

The study was funded by the USDA Forest Service, Region 5.

LEAVE A COMMENT

Discussion | 6 comments

  • robertdnollJune 28, 2013 - 4:26 pm

    i wonder if they drank any of the water?

    Reply | Report abusive comment
  • Phil VeerkampJune 28, 2013 - 9:52 pm

    I have, Robert. It's great . . . superior in fact to our chlorinated water. I'll take clear cold mountain stream water over treated, chlorinated water any day . . . ANYDAY. One of my uncles had a summer range that stretched from Nevada point to Hell Hole. I helped him round up one fall. We and the cattle took whatever water came from the springs, streams and rivers. It was great! Irreplaceable times, Robert!

    Reply | Report abusive comment
  • James E.June 28, 2013 - 10:38 pm

    Is the water in Placerville city limits chlorinated? Phil, you are the water expert, what say you? Somehow I don't think it is, but I'm not sure.

    Reply | Report abusive comment
  • Phil VeerkampJune 28, 2013 - 10:49 pm

    Placerville Water is chlorinated . . . but . . . good news . . . it is no longer fluoridated.

    Reply | Report abusive comment
  • James E.June 28, 2013 - 11:34 pm

    Phil, right, I was thinking of fluoride -- chlorination kills the bugs and stuff

    Reply | Report abusive comment
  • robertdnollJune 29, 2013 - 1:59 pm

    giardia is great for weight loss if you don't mind that sort of disease,which apparently some people don't

    Reply | Report abusive comment
.

News

EDH Fire Dept. annexing Latrobe

By Noel Stack | From Page: A1, 7 Comments

 
Motorcycle fatality in Greenwood

By Cole Mayer | From Page: A1

 
Greenwood School being restored

By Rebecca Murphy | From Page: A1 | Gallery

Cal Fire increasing staffing, hiring

By Cal Fire | From Page: B1

 
EID restricts watering days

By Michael Raffety | From Page: A1, 10 Comments

Lover’s Leap fall injures man

By Tahoe Tribune | From Page: A1

 
Tea Party meeting April 17

By Tea Party Patriots Of El Dorado Hills | From Page: A3, 46 Comments

 
Town Hall Meeting on Underage Drinking May 1

By El Dorado Hills Community Vision Coalition | From Page: A6

Floating body not a body

By Cole Mayer | From Page: A7

 
Old mill a goner

By Dawn Hodson | From Page: A11, 11 Comments | Gallery

.

Letters

A great big thanks

By Letters to the Editor | From Page: A5

 
Murder? Suicide?

By Letters to the Editor | From Page: A5, 6 Comments

‘Drive Clean’

By Letters to the Editor | From Page: A5, 3 Comments

 
Middle class getting poorer?

By Letters to the Editor | From Page: A5, 48 Comments

Real estate lies

By Letters to the Editor | From Page: A5, 13 Comments

 
.

Sports

Outside with Charlie: Switch gear

By Charlie Ferris | From Page: A8

 
Ponderosa volleyball is a family affair

By Jerry Heinzer | From Page: A8 | Gallery

Aussie team makes visit

By Special to the Democrat | From Page: A8

 
Griz have challenging day

By Mike Bush | From Page: A8 | Gallery

Roundup: April 15, 2014

By Democrat Staff | From Page: A9 | Gallery

 
.

Prospecting

At a glance: Take aim on fun

By Mimi Escabar | From Page: B2

 
Men to walk a mile in her shoes

By Center For Violence-Free Relationships | From Page: B2 | Gallery

Runners stampede for Sugarloaf scholarships

By El Dorado County Office of Education | From Page: B2 | Gallery

 
Team works to fight disease

By Placerville Kiwanis | From Page: B3

 
COOL School is accepting applications

By Rescue Union | From Page: B4

Band of Miwoks fund mission

By Shingle Springs Band Of Miwok Indians | From Page: B12

 
.

Essentials

Crime Log: March 25-27

By Cole Mayer | From Page: A2

 
Weather stats 4-15-14

By Michael Raffety | From Page: A2

.

Obituaries

Ronald Russell Rohrer

By Contributor | From Page: A2, 2 Comments

 
Numa Edward “Ed” Roberts

By Contributor | From Page: A2

.

Real Estate

.

Comics

Shoe

By Contributor | From Page: A10

 
Rubes

By Contributor | From Page: A10

New York Times Crossword

By Contributor | From Page: A10

 
Tundra

By Contributor | From Page: A10

Horoscope, Thursday, April 17, 2014

By Contributor | From Page: A10

 
Horoscope, Wednesday, April 16, 2014

By Contributor | From Page: A10

TV Listings

By Contributor | From Page: A10

 
Sudoku

By Contributor | From Page: A10

Flying McCoys

By Contributor | From Page: A10

 
Speed Bump

By Contributor | From Page: A10

Working It Out

By Contributor | From Page: A10