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April 12
1738 - Fr. Francisco Garcés born in Spain; came through SCV in 1776, found Tataviam fighting with Coastal Chumash, observed Santa Clara River flowing by night and dry by day despite the season being spring [story]
Garces statue


The Los Angeles County Board of Supervisors will decide Tuesday whether to invest $150,000 in a pilot project in Acton which, if successful, could lead to increased groundwater pumping – and potentially not just in Acton.

According to a report from Public Works Director Gail Farber, the public water agency in Acton – County Waterworks District No. 37 – could save its customers a bunch of money, on the order of $400,000 a year, if only it could pump more groundwater.

But it can’t, because if it did, the nitrate levels would exceed the regulatory standard. So instead it purchases “treated surface water to meet approximately 30 percent of its customers’ demand at a much higher cost than it would cost to pump groundwater from district wells.”

So Public Works wants to partner with the Denver-based Water Research Foundation to hire a Chatsworth engineering firm – WQTS, or Water Quality & Treatment Solutions Inc. – to “evaluate the effectiveness of the biological nitrate removal process.”

According to a document from WQTS, many groundwater wells have nitrate levels near or above maximum contaminant levels, so water providers either  blend the water with purer water or treat it with ion exchange or reverse osmosis technologies. The trouble with ion exchange and reverse osmosis, it says, is that they create a brine stream that’s difficult to dispose of. (The county Public Works director says the same thing.)

WQTS says biological denitrification solves the waste problem because the backwash can be disposed of into any municipal sewer system. But it isn’t widely used in the United States, so it says more testing is needed before it will be “well accepted by utilities and regulatory agencies.”

Peers who reviewed WQTS’ proposal for the Water Research Foundation said the company wasn’t cutting any new scientific ground, but WQTS said that’s not the point.

“The project is not intended to be a scientific research project, but a practical engineering and operations project,” WQTS said in response to the peer review. “The greatest limitation for the county is the waste backwash water. To our knowledge, there has been no demonstration work done on the reuse of waste backwash water from a groundwater denitification system that is used to generate drinking water.”

It said other biological nitrate removal systems are in the works, but none has been approved.

“No water system that we know is ready to implement this technology without a lot more information and validation of stability and robustness,” it said. “This is the position of L.A. County, also, and that is the driver behind their interest in the project.”

As for prior experience, WQTS said it previously evaluated systems for removing perchlorate and nitrate from the city of Pasadena’s groundwater, and nitrate from Glendale’s groundwater.

At Acton, the company said it will also be assessing the potential of the process for removing co-contaminants such as TCE and Chromium-6.

“The goal of evaluating co-contaminant removal with the (biological denitification) process if of great interest to water agencies having groundwaters with multiple contaminants,” the company said. “Many Southern California groundwater basins fall into this category, including the San Gabriel Basin, the Chino Basin and the Reymond Basin. Agencies drawing water from these and similar basins could greatly benefit from the outcome of this project.”

The county’s goal is focused: “The study will evaluate the effectiveness of the biological nitrate removal process in the District’s groundwater and identify regulatory, operational, and maintenance requirements for a full-scale implementation of the treatment,” Farber’s report states.

As proposed, the county and the Water Research Foundation would each put up $150,000 for the project, which has a 15-month timeline to a final report.

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LOS ANGELES COUNTY HEADLINES
Friday, Apr 9, 2021
Los Angeles County Public Health on Friday confirmed 48 new deaths and 752 new cases of COVID-19 countywide, with 27,432 total cases in the Santa Clarita Valley.
Friday, Apr 9, 2021
Officials in the Los Angeles County Sheriff’s Department will be hosting a virtual community discussion on child abuse prevention April 20.
Thursday, Apr 8, 2021
The Los Angeles County Department of Public Health confirmed Thursday 52 new deaths and 710 new cases of COVID-19, with 27,417 total cases in the Santa Clarita Valley.
Thursday, Apr 8, 2021
Because of the economic downturn brought on by the COVID-19 pandemic, some pet owners may have delayed purchasing their annual pet licenses and are now subject to late penalty fees.
Wednesday, Apr 7, 2021
Los Angeles County Public Health officials on Wednesday confirmed 53 new deaths and 479 new cases of COVID-19 countywide, as the Santa Clarita Valley cases total rose by 12 from Tuesday's to 27,393 since the pandemic began.

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Latest Additions to SCVNews.com
1738 - Fr. Francisco Garcés born in Spain; came through SCV in 1776, found Tataviam fighting with Coastal Chumash, observed Santa Clara River flowing by night and dry by day despite the season being spring [story]
Garces statue
1987 - Ramona Chapel and Red Schoolhouse relocated to Heritage Junction [story]
Red Schoolhouse
1835 - Outlaw and Rocks/Park/High School namesake Tiburcio Vasquez born in Monterey, Calif. [story]
Tiburcio Vasquez
Nearly 100 people gathered in front of the highly anticipated Laemmle 7 in Newhall to officially open the theater to the Santa Clarita Valley community.
Laemmle Officially Opens in Old Town Newhall
The city of Santa Clarita Parks, Recreation and Community Services Commission recently met to receive an update from city staff about the status of the Pioneer Oil Refinery in Newhall.
Parks Commissioners Asked to Advise on Pioneer Oil Refinery’s Future
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Judge Halts Centennial Development Project in Tejon Ranch
The California Community College Athletic Trainers Association has named longtime athletic trainer, and current College of the Canyons associate athletic director, Chad Peters its 2021 Athletic Trainer of the Year.
Chad Peters Named CCCATA 2021 Athletic Trainer of the Year
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The Santa Clarita City Council Legislative Committee briefly met Thursday morning to recommend that the City Council oppose four pieces of state legislation that would expand the state’s land-use authority.
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City Postpones 2021 Marathon, Event Permanently Moved to February
The Los Angeles County Department of Public Health confirmed Thursday 52 new deaths and 710 new cases of COVID-19, with 27,417 total cases in the Santa Clarita Valley.
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Because of the economic downturn brought on by the COVID-19 pandemic, some pet owners may have delayed purchasing their annual pet licenses and are now subject to late penalty fees.
Animal Care & Control Temporarily Waives Pet Licensing Fees
College of the Canyons will welcome José Rivera, award-winning playwright and the first Puerto Rican screenwriter to be nominated for an Oscar, to the School of Visual & Performing Arts’ Virtual Industry Insight Series on Monday, April 12.
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Santa Clarita Artists Association (SCAA) will spotlight contemporary artist Alex Schaeffer in a virtual oil demo on Monday, April 19, from 6:30 p.m. - 8:30 p.m.
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Spectrum Commercial Real Estate advisors Yair Haimoff, SIOR, Randy Cude, and Matt Sreden represented the seller in the sale of a 23,817-square-foot professional office building in a prime Valencia location.
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Following stakeholder planning meetings over the course of a year and a public survey period in January, the city of Santa Clarita’s 2021 Local Hazard Mitigation Plan (LHMP) draft update enters the next phase in the approval and adoption process.
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Cassie Gratton knows how to open a Laemmle theater. The general manager of the Newhall Laemmle, which will open its doors with a ribbon-cutting this Friday, also helped to open Laemmle’s Glendale and Claremont locations.
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