March 28, 2017

LADWP scrambling to prepare dusty Owens Valley for possible floods

Overflow from the Owens River creates a mirror pond near Bishop reflecting the snow-capped Sierras. (Mark Boster / Los Angeles Times)

by Louis Sahagun
Los Angeles Times

Lone Pine, Calif. -- As snow continued to fall on the eastern Sierra Nevada on Monday, platoons of earth movers, cranes and utility trucks fanned out across the Owens Valley, scrambling to empty reservoirs and clean out a lattice-work of ditches and pipelines in a frantic effort to protect the key source of Los Angeles’ water.

With snowpack levels at 241% of normal, Los Angeles Mayor Eric Garcetti a week ago issued an emergency declaration allowing the Department of Water and Power to take immediate steps to shore up the aqueduct and its $1-billion dust-control project on dry Owens Lake, which L.A. drained to slake its thirst in the last century.

DWP activities have always elicited concern in the Owens Valley, given the history of a water war that began when Los Angeles agents posed as ranchers and farmers to buy land and water rights in the area. Their goal was to build the aqueduct system to meet the needs of the growing metropolis 200 miles to the south.

The stealth used to obtain the region’s land and water rights became grist for books and movies that portrayed the dark underbelly of Los Angeles’ formative years, and inspired deep-seated suspicions about the city’s motives that linger to this day.

Officials insist that the current emergency poses a real threat not just to urban Los Angeles’ residents, but to the ranchers, farmers, outdoor enthusiasts and small-business owners living in the sage-scented high desert gap between the fang-like peaks, some taller than 14,000 feet, of the Sierra Nevada to west and the White and Inyo ranges to the east.

“Conditions of extreme peril” threaten residents and ecosystems, Garcetti said. The 1 million acre-feet of water expected to flow through the century-old aqueduct system this spring and summer could possibly overflow the web of concrete channels, spilling into fields, homes and businesses.

The danger of destructive flooding and the utility’s responses to it are raising tensions between Los Angeles and the Owens Valley towns along a 110-mile stretch of U.S. 395 in a rural region defined by water wars since the early 1900s.

The crews swarming the valley are focused on protecting DWP infrastructure and U.S. 395, the principle route between Southern California and eastern resort areas, leaving some townsfolk fretting they are being overlooked.

The emergency is already taking toll on the tourism industry in a stunning landscape of snow-capped peaks, cascading streams, dormant volcanoes, small towns and sage plains dotted with irrigated pastures — most of them leased from the DWP.

The Bishop Chamber of Commerce & Visitors Bureau, for example, was forced to cancel the 50th annual Blake Jones Trout Derby scheduled for March 11 after the DWP rescinded its permission to hold the event because of dangerously high waters spilling over the banks of the Owens River, just north of town.

“Losing the derby was a $300,000 hit to the local economy,” said Tawni Thompson, director of the chamber. “We’ll never know how many vacationers decided not to come through Bishop because they were scared of dying in a flood.”

“I’m going to declare a state of emergency,” she added, “if our tourism industry goes down the toilet.”

Bernadette Johnson, superintendent of the Manzanar National Historic Site on U.S. 395, has been getting nowhere with requests for additional flood control measures along streams on DWP land just outside the boundaries of the location that was a Japanese American internment camp during World War II.

“We were hit by destructive flooding earlier this year, and in 2013 and 2014,” Johnson said. “But the DWP is saying that when all hell breaks loose they won’t have enough resources and manpower to help us. We have to wonder about their priorities.”

In long legal battles spanning decades, the DWP was eventually forced to give up significant amounts of water to steady water levels in Mono Lake, re-water parts of dry Owens Lake to help prevent dust storms and restore a 62-mile stretch of the Lower Owens River.

Many residents suspect that the DWP plans to use emergency declarations to bypass rules and regulations that have prevented it in the past from constructing paved roads, for example, on Owens Lake, which is owned by the State Lands Commission.

Richard Harasick, head of the DWP’s water system, dismissed that notion: “The department is not using this emergency declaration to take some sort of advantage or build special projects that would otherwise have to go through the normal regulatory process.”

“It is as much to help us manage the anticipated floodwaters as to aid in public safety,” he said. “It allows us to get goods, services and contracts faster, from heavy equipment to riprap needed to shore up banks and channels.”

This week, Inyo, Kern and Mono counties were expected to issue their own emergency declarations, making them eligible for state and federal assistance in the event of flooding.

“My proclamation will ask for critical resources,” Inyo County Administrator Kevin Carunchio said. “In the meantime, I want every DWP facility, ditch, diversion bypass, canal and conveyance structure available and operating as soon as possible.”

The region has a history of destructive floodwaters rushing off the High Sierra.

In August 1989, for example, cloudbursts driven by 60-mph winds gouged out the underpinnings of the aqueduct near Cartago and closed a 63-mile stretch of U.S. 395.

Jon Klusmire, administrator of the Eastern California Museum in Independence, isn’t taking any chances with the little institution located along a usually docile creek.

“I’ve devised a survival strategy for a worst-case scenario,” he said. “I’m going to jam some boards in a nearby DWP diversion gate, then dig a ditch to divert the water away from the museum and into the streets.”

The big question for Kathy Jefferson Bancroft, tribal historic preservation officer for the Lone Pine Paiute-Shoshone Reservation, is this: “How could it be that Los Angeles never developed a plan B in a place where massive snowpack and destructive flooding go with the terrain?”

Standing on a berm overlooking on the plots of vegetation, gravel and shallow flooding the DWP has constructed across 50 square miles of dry lake bed over the past 20 years, Bancroft said, “They’ve reduced dust pollution here by 96% with these projects, and they’re all going to be underwater soon.

“Honestly, I’m looking forward to seeing this lake filled up again, like it is supposed to be,” she said.

That vista will be short-lived. The runoff is expected to evaporate within 12 to 18 months, leaving behind an already existing repair job for dust abatement and system improvements expected to cost up to $500 million, officials said.

The rebuilding effort will be done in cooperation with state and federal regulatory agencies, local authorities and stakeholders, the State Lands Commission, which owns the lake bed, and the Great Basin Unified Air Pollution Control District, which is responsible for protecting the health of Owens Valley residents.

“When we’re done, it’ll be something different than what exists today,” Harasick said. “That’s because we plan to make it more flood-resilient.”