Monday, September 10, 2018

AZMEX UPDATE 10-9-18

AZMEX UPDATE 10 SEP 2018


Note: just one of many times our neighbors have treated us to their sewage.
Thx



Flow of raw sewage from Mexico across Arizona border slowed

BY ASSOCIATED PRESS | SEPTEMBER 9, 2018 AT 12:57 PM
UPDATED: SEPTEMBER 9, 2018 AT 2:11 PM

http://ktar.com/story/2209378/flow-of-raw-sewage-from-mexico-across-arizona-border-stopped/

NACO, Ariz. (AP) – Authorities say a flow of raw sewage from Mexico across the Arizona border into Naco has been slowed, but there's still some pooling on private property in the area.

County officials say there's no immediate threat to the public and work is ongoing to contain and chlorinate the pooled sewage.

They say a pipeline leak occurred early Sunday near the Naco Point of Entry and its cause isn't immediately clear.

Area residents were told to prepare to leave their homes if the flow couldn't be stopped within 24 hours, but the pre-evacuation order was later cancelled.

Crews from the county environmental health department, Arizona Department of Environmental Quality and Naco Fire Department responded to the scene.

The Naco Water Company increased its testing and treatment of the water supply Sunday.

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More:

Hydrologist to discuss metals in binational wastewater
Nogales International Sep 7, 2018

https://www.nogalesinternational.com/news/hydrologist-to-discuss-metals-in-binational-wastewater/article_8cb613fa-b226-11e8-8731-474afa83d3fc.html

Hans Huth, a hydrologist with the Arizona Department of Environmental Quality, processes samples at the site of a sewer line breach north of city limits in July 2017. He'll speak at a public meeting Sept. 13 in Tubac.
File photo by Jonathan Clark

A state hydrologist will talk about metals in wastewater treated at the Nogales International Wastewater Treatment Plant during a public meeting 3-5 p.m. on Thursday, Sept. 13 in Tubac.

The meeting of the Southeast Arizona Citizens Forum, a group meant to promote the exchange of information between the U.S. Section of the International Boundary and Water Commission (USIBWC) and the community, will be held at the Tubac Community Center, 50 Bridge Rd.

Binational wastewater treated at the plant in Rio Rico contains chromium, copper, nickel and zinc at levels exceeding influent objectives for the facility, the USIBWC said in a news release.

"Impacts of exceedances may include biosolids contamination, plant upsets through microbiological disturbance and exceedances of permitted discharge limits," the agency said.

Since the industrial sector in Nogales, Sonora is a big contributor to metal loadings in wastewater, that city's potable water and wastewater utility (OOMAPAS) coordinated with the Arizona Department of Environmental Quality (ADEQ), the EPA Border 2020 Program, wastewater utilities in Pima County and the City of Phoenix, and the USIBWC to examine the issue. During the Sept. 13 meeting in Tubac, ADEQ hydrologist Hans Huth will present the results of the 30-day study that took place in June 2018.

Also at the meeting, representatives of the Sonoran Institute will discuss the health of the Santa Cruz River.

"This presentation will discuss data shared in the Living River reports that track water quality, fish and other indicators of river health before and after the upgrades to the Nogales International Wastewater Treatment Plant," the USIBWC said, adding that the presenters will also discuss how improving quality of life in Nogales, Sonora relates to the health of the river.

For more info about the meeting, call (520) 281-1832 or e-mail lori.kuczmanski@ibwc.gov.

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