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Carlsbad Desalination Plant Ready with Floating Boom if Oil Slick Moves South

Poseidon Water and the San Diego County Water Authority said Wednesday they are monitoring the oil spill off Huntington Beach and are prepared to protect the Carlsbad desalination plant.

The two organizations said in a statement that oil from Saturday’s underwater pipeline leak has not affected operations at the Claude “Bud” Lewis Carlsbad Desalination Plant, which supplies nearly 10% of the county’s drinking water.

Colorado Heads Into Snowpack Season With Low Reservoirs — but a Twinge of Hope

Drought conditions have eased up a bit from this time last year, but as the calendar turns on Colorado’s water year, worries about a dry winter still loom, the state’s assistant climatologist says.

That’s not to say Colorado isn’t parched. Most of the state remains in drought, including the Eastern Plains, which spent much of the summer drought-free.

California and the West Can See Small Glimmers of Hope in Weather Outlooks for October

Outlook maps for October temperature and precipitation in the U.S. offer a glimmer of hope for California and parts of the West. For the first time in months, California’s precipitation outlook map isn’t colored a desiccated brown, indicating drier-than-normal conditions.

Likewise, the temperature outlook map isn’t glowing red, resembling a stove-top burner set on high.

New Protections for California’s Aquifers Are Reshaping the State’s Central Valley

California’s agricultural empire is facing a shakeup, as a state law comes into effect that will limit many farmers’ access to water.

The seven-year-old law is supposed to stop the over-pumping from depleted aquifers, and some farmers — the largest users of that water — concede the limits are overdue.

 

Un Agency Warns of Looming Global Water Crisis

Climate change is poised to result in a worldwide water crisis, and international institutions and governments have not done enough to prepare, according to a report released Tuesday by the World Meteorological Organization (WMO).

Drought Emergency: San Jose Mayor Liccardo Proposes Outdoor Watering Limits To 2x/Week, Renews Calls To Conserve

San Jose Mayor Sam Liccardo renewed calls for residents to conserve water and proposed outdoor watering restrictions Wednesday as California’s ongoing drought deepens.

San Diego County ‘Ready to Respond’ if Oil Spill Heads South

San Diego County officials Wednesday said they were ready to respond should oil from the pipeline break in Orange County make its way into San Diego County waters and beaches.

Nathan Fletcher, chair of the County Board of Supervisors, and Jeff Toney, director of the county’s Office of Emergency Services, said they are in constant communication with state and federal officials about the oil spill’s possible impact on San Diego County.

City Takes Possession of Water Desalination Unit

On Tuesday, September 14, the City of Fort Bragg council declared a Stage 4 Water Crisis at its regularly scheduled meeting on Monday night. A Stage 4 Water Crisis targets a 30-40% decrease in seasonal water use based on the most recent year in which water conservation measures were not required (2019).

Six months ago the City of Fort Bragg ordered a desalination-reverse osmosis treatment system to help provide drinking water during periods of saltwater intrusion at its main Noyo River water source. The skid-mounted unit has arrived and can produce 200 gallons of desalinated water a minute, or 288,000 gallons of water per day, but because the unit can only run for 12 hours a day, the daily capacity will top out at 144,000 gallons.

Choosing Your Best Irrigation Method: Spray or Drip

Your choices in irrigation methods come down to spray or drip systems. Spray irrigation emits water in an overlapping pattern. Drip irrigation delivers water directly to the roots of plants. This question is more important than ever during a drought cycle. How do you decide which meets the needs of your landscaping?

Irrigation-Conservation Corner-drought-Water Conservation

Choosing Your Best Irrigation Method: Spray or Drip

Your choices in irrigation methods come down to spray or drip systems. Spray irrigation emits water in an overlapping pattern. Drip irrigation delivers water directly to the roots of plants. This question is more important than ever during a drought cycle. How do you decide which meets the needs of your landscaping?

The case for spray irrigation

Ensuring that spray heads are properly tuned and far enough away from buildings or impermeable surfaces helps maximize your water efficiency. Photo: California Department of Water Resources

Ensuring that spray heads are properly tuned and far enough away from buildings or impermeable surfaces helps maximize your water efficiency. Photo: California Department of Water Resources

Spray irrigation can be an efficient way to irrigate large landscapes with groundcover or uniform plant materials like lawns or meadows.

Spray systems apply water in gallons per minute, so if you know the application rate of each spray head, the distance between the heads, and the pressure of your system, it is relatively easy to figure out how much water is applied every time you run your irrigation.

Low volume spray heads apply water at about one-third the rate of conventional spray heads. Newer spray irrigation heads have improved spray with heavier droplets more resistant to wind. Landscaping with grade changes using spray heads should have check valves installed to prevent water flowing out of the lower point heads.

Challenges of spray irrigation include narrow areas surrounded by hardscape or irregular patterns. Irregular patterns are particularly challenging because spray irrigation requires head-to-head coverage to be efficient. Odd-shaped areas may be under or overwatered. High-volume spray heads that emit water at a much higher rate than the soil can absorb should be replaced.

The case for drip irrigation

Drip systems apply water in gallons per hour, so they often need to run for longer periods of time than spray systems. But the actual run time must always account for precipitation rate and runoff.

Installation of subsurface systems (under at least two inches of mulch) is the most efficient way to irrigate nearly every type of garden area. Since the tubing is flexible, it can accommodate a variety of irregularly shaped areas or rectangular areas when laid in a grid pattern, and in rings you can easily expand as trees or shrubs grow.

Challenges of drip irrigation include the application of water too quickly for your soil to absorb. This needs to be considered when dripline grids are installed. Drip irrigation operates the most efficiently at low pressure (between 15 and 30 PSI). To achieve optimal performance, pressure regulation either at the valve or at the point of connection of the dripline to the buried lateral lines must be used. It is also essential to install some type of filtering system to keep the emitters from getting clogged.

This article is part of a year-long series inspired by the 71-page Sustainable Landscapes Program guidebook. The Water Authority and its partners also offer other great resources for landscaping upgrades, including free WaterSmart classes at WaterSmartSD.org.