Tag Archives: California Office of Emergency Services

Plumas Co. Grand Jury: Scathing indictment of hazardous material transportation through Feather River Canyon

Repost from Plumas County News
[Editor:  This Grand Jury report is thorough and well written – an excellent resource and alarming in its analysis.  Its findings and recommendations (near the end of the report) might be a valuable resource for communities everywhere.  There are a number of references to “after-action reports.”   Question for our research: how can concerned citizens obtain such reports?  – RS]

Hazardous material transportation a roulette wheel for potential disaster

Feather Publishing

6/5/2015

Editor’s note: This is the fourth in a series of midterm reports submitted by the 2014-15 Plumas County Civil Grand Jury.

SUMMARY
Early in the morning Nov. 25, 2014, a Union Pacific freight train derailed in the Feather River Canyon just east of Belden, sending 11 railcars full of corn off the tracks and down the steep embankment. In a press statement shortly afterward, a State Office of Emergency Services official was quoted as saying, “We dodged a bullet” because the train was only carrying corn.

Based on a rash of recent derailments and spills of hazardous materials happening throughout the United States and Canada, “a bullet” in fact grossly underestimates the potential devastation, magnitude and scope of the consequences left from these horrific incidents. Luckily, it was only corn that spilled. With the recent surge in crude-by-rail domestic crude oil transports between oil fields in North Dakota, Texas, Colorado and Pennsylvania and Bay Area refineries through the Feather River Canyon, the aftermath could have wrought far-reaching disaster had it been the high-flammable Bakken crude in the tanker cars.

According to sources, the number of crude-by-rail trains passing through the Feather River Canyon has tripled in number within the past three years. With developments in hydraulic fracking technology coming about in domestic oil fields, the petroleum market has seen a profound shift from importing foreign oil to extracting it in domestic oil fields in the United States. As a result, thousands of jobs have been created and oil prices have plummeted since this recent boon in domestic oil production. In addition, other hazardous chemicals are transported throughout the United States by rail and by truck. According to the Federal Railroad Administration, only the railroads are required to know what’s in the cars they’re shipping.

The grand jury found it extremely important to examine the recent corn derailment other recent crude-by-rail disasters in the U.S. and Canada to determine whether Plumas County agencies and private transportation operators are adequately prepared in “worst-case” scenarios. In respect to the Plumas County corn derailment, because the corn was relatively harmless and could be immediately dealt with without invoking hazardous material protocols, local, state and railroad officials and crews did an excellent job in containment of the spill and clearing and repairing the tracks within the impact area.

As a result of a quick and well-coordinated response, the Feather River Canyon rail route was restored and passing rail traffic three days after the initial derailment. Nonetheless, the grand jury has found the incident to be a practical review for a county hazardous material spill and useful opportunity to compare and contrast the corn spill with other recent more disastrous spills. Plumas County did indeed “dodge the bullet,” and from this incident the grand jury believes it will provide valuable findings and recommendations which may in turn act as a catalyst and cast fresh perspectives and insights on dealing with future potential spills and hazardous material disasters.

BACKGROUND
In review of the Feather River Canyon corn spill Nov. 25, 2014, a total of 11 cars full of raw corn derailed and spilled down a steep embankment near Rich Bar. Luckily, the spill was only tons of kernels and husks, and the incident proved to have had only a minimal impact, environmentally speaking.

The corn spill turned out to be good opportunity to test the Plumas County emergency response system. The incident was first reported by Union Pacific Railroad Dispatch in Omaha, Nebraska, to the Plumas County Warning Center, stating, “12 rail cars close to Rich Bar at Hwy 70 MPM 265 on the Canyon Sub,” and that “12 rail cars loaded with grain derailed, it is unknown whether the cars are upright or on their sides, and that the derailment occurred in a canyon next to a stream or river and it is unknown at this time if the waterway was impacted.”

According to the after-action report on the incident, the State Warning Center notification included the Plumas County sheriff, California Highway Patrol, Plumas County Environmental Health, State Water Quality Board, State Department of Toxics, State Drinking Water, Cal Office of Emergency Services, U.S. Environmental Protection Agency and the California Department of Fish and Wildlife. The accident occurred around 3 a.m. Nov. 25. By 8 a.m. Union Pacific had placed containment booms 100 feet down the Feather River. Fortunately, none of the cars landed in the river and only a small amount of corn spilled into the river.

One of the important facts that should be emphasized here concerns containment supplies and where they are located. It took roughly five hours for the railroad to have containment booms in place. According the Plumas County officials, Union Pacific does not have any spill containment kits in Plumas County. A formal request from the grand jury was emailed to Union Pacific safety representatives asking about the whereabouts of containment kits — according to their response (the grand jury received a very quick email reply that day), Chico, Roseville and Reno, Nevada, were the closest railroad facilities that had emergency containment kits.

Other revelations from the after-action report revealed that the Union Pacific Railroad Dispatch Center could not pinpoint the exact location in the Feather River Canyon to the Warning Center. In addition, dispatch was not “forthcoming” on what was spilled, although the center did state that the Plumas County Sheriff’s Department was notified that “there were no injuries, no hazardous materials released, and that no assistance was needed.” The corn spill after-action report in its conclusion posted its “corrective actions from railroad incident” review. Some of the recommendations are summarized here:

—Push Union Pacific dispatch for better initial report information.

—Use GPS to pinpoint incident location.

—Coordinate with the U.S. Forest Service and the California Department of Fish and Wildlife for any incident in the Feather River Canyon.

—The incident commander for any hazardous materials incident is designated as the primary law enforcement authority.

—Follow Plumas County Hazardous Materials Response Plan.

—The Office of Emergency Services will try to find a local Union Pacific dispatch contact person.

Evidently, the cause of the corn derailment was a section of the railroad track breaking or separating. Ironically, Union Pacific reported that all railroad ties along the Feather River Canyon were replaced in 2013. Union Pacific conducts track inspections at regular intervals and reportedly it conducts Feather River Canyon inspections every three months. Nonetheless, the corn derailment exemplifies that rail accidents can happen at any time.

In respect to the other crude-by-rail spills, the same results were concluded. Train speed was not a factor and rail and bridge inspections were documented before the incidents occurred. The crude-by-rail derailments were all on relatively flat landscapes. The Feather River Canyon route, with its rocky and unstable terrain, is much more prone to outside factors that can lead to derailments.

According to 2013 Plumas County Hazard Mitigation Plan, in 2007 and in 2012 a rockslide struck and derailed passing trains. The 2007 slide derailed 22 rail cars; 20,000 gallons of peanut oil ruptured from several cars and 30,000 gallons of highly flammable denatured alcohol also spilled down the embankment. The 2012 incident was caused by a large boulder that fell onto the tracks and was struck by a Burlington Northern Santa Fe train. Over 3,000 gallons of diesel fuel spilled from the train into the Feather River.

The recent crude-by-rail spills throughout the U.S. showcase the dramatic rise in domestic oil production and rail shipments to coastal refineries. According to railroad data, in 2008 there were reportedly about 10,000 oil cars carrying domestic crude. In 2014, there were over 400,000 crude-by-rail train cars, representing a 4,000 percent increase. Furthermore, the type of crude oil coming from shale deposits from Bakken oil fields (commonly referred as “light crude”) is high combustible. In almost every instance in which trains carrying Bakken crude derail and tanker cars are punctured, fiery detonation results. First responders and emergency service crews can merely watch it burn and concentrate on containment perimeters rather than extinguishing the oil fire. Without sensationalizing a disaster that occurred in another place, had any of the recent oil tanker disasters happened along the Feather River route, particularly at locations near population areas including downtown Portola, Blairsden, Twain and Keddie, where the railroad tracks are relatively close, the extent of the damage could have been far different.

The grand jury would first like to acknowledge as a matter of fact that hazardous chemical hauling is an integral part of our economy. As potentially dangerous as they are, crude oil, gasoline and chemicals are used safely every day. Without them our economy and all the things we do, all the products we require in our daily lives, the way we move would be changed; just about everything revolves around the consumer and the safe use of chemicals and their byproducts.

That being said, the vital role of both the national carriers of hazardous materials and our public safety officials at each level is to make safety the No. 1 priority. Safety, defined here, entails the complete processing of any particular product, from its extraction and refinement to transportation, delivery and ultimate usage.

Railroads carry over 40 percent of our nation’s freight. When conducted safely and securely, commodity transport over rail is proven to be economically the best and most efficient mode of transportation in terms of fuel efficiency, supply chain costs and safety. Intermodal traffic refers to the transport of goods on trains. Today, two major rail companies, Union Pacific and Burlington Northern Santa Fe, transport intermodal goods through Plumas County. According to the Union Pacific Railroad, chemical transport is roughly 17 percent of total payload being carried. The breakdown of goods, however, is not representative of actual train payloads. In other words, trains passing through the county could have any number of railcars full of one particular commodity or another and the cars may be full or empty.

The grand jury has found that the mission statements, top priorities, primary focus and action plans are remarkably similar in commitment, scope and language between hazardous material producers, transport carriers and government officials at every level. In other words, everyone directly engaged in the production and distribution of everything delivered over rail, by air or on pavement — as well as their overseers — share a common pledge to make safety their top priority in the public domain and the environment.

In addition, the grand jury has studied the after-action reports of many of the most recent crude-by-rail derailments and public highway chemical transport accidents and learned that in nearly every case, there were inspections completed days or weeks before the incidents, rail and highway speeds were under the mandated limits and handling of the volatile payloads were properly done according to federal safety mandates.

According to official published reports, there has been more oil spilled from trains in the past two years than in the previous four decades. Between 1975 and 2012, around 800,000 gallons of crude oil was spilled in the U.S. By comparison, according to data from the Pipeline and Hazardous Materials Safety Administration data, over 1.5 million gallons of crude oil was spilled from rail cars.

As a result of the series of ruptures and fires that have recently plagued the U.S., federal regulators are considering higher safety standards and further upgrades such as thicker tanks, rollover protection for chemical carrying tanker cars, electronic braking systems on individual rail cars and increased track inspections.

The U.S. Department of Transportation has issued a notice for crude oil and high-hazard flammable trains tanker cars, calling for a phaseout of the older CTC-111A tanker car (commonly known as the DOT-111). Currently there are still around 300,000 CTC-111A cars still being used throughout the U.S. These tanker cars each generally carry between 20,000 and 30,000 gallons of oil. According to the U.S. Department of Transportation the older CTC-111As have the following safety flaws:

—Thin skins: Upon derailment, tanks often rupture.

—No head shields: Shields on both ends of tanker cars can prevent puncturing during collisions.

—Poor protection over valves and fittings.

—Lack of pressure relief devices for boiling liquid expanding vapor explosions.

In short, the older CTC-111A tanker cars were not designed for hauling flammable materials.

The new replacement tanker car, called the CPC-1232 (CPC is a railroad industry standard that stands for casualty prevention circular), features new standards for hazardous material railway transport. As of November 2011, all new tank cars built for transporting crude oil and ethanol must follow new standards, including half-height shields, thicker tank and head material, normalized steel, top fitting and gauge protection and recloseable pressure relief valves.

As of March 2015, there are reportedly 60,000 of the newer CPC-1232 tanker cars hauling crude in the U.S. In response to all the recent crude-by-rail derailments, Union Pacific, CSX and Burlington Northern Santa Fe have all stepped up in increased safety inspections and adapting new safety standards. The railroads are now relying on distributed power units, which place locomotives in the middle and/or both ends of the trains. Studies show that placing power locomotives on both ends and in the middle enhances safety because it even spreads physical forces on the train.

This revelation is significant — the 1991 Dunsmuir toxic chemical derailment was caused by this very reason. The power locomotive was placed in the rear of a 97-car train and light and empty cars flanked a full tanker car filled with 19,000 gallons of metam sodium. The investigation of the Dunsmuir disaster found that because all the power was placed at the rear of the large train, the uneven power distribution caused the train to buckle.

Metam sodium is a soil fumigant. When it spilled into the upper Sacramento River — because of poor containment action and the nature of toxicity of the chemical — it killed every plant and fish for approximately 40 miles downstream.

Railroads also use wayside electronic detectors to monitor railroad tracks. New safety detecting technology is also being used in their prevention and risk reduction process that features use of lasers and ultrasound to identify rail defects.

The grand jury has learned that many of the hazardous material railcars do not belong to the rail carrier but to the company producing and transporting the product. For example, most of the older CTC-111A and newer CPC-1232 tanker cars are actually owned by the crude oil fracking companies and refineries.

The number of trains carrying crude oil and other hazardous materials is actually based on sheer economics. For example, in 2014, when oil prices hovered around $100 a barrel, the price sent domestic oil production to an all-time high. Crude-by-rail oil shipments though Plumas County increased substantially as coastal refineries in Martinez and Benicia purchased more oil from the Bakken oil fields in North Dakota and other domestic oil fields in Texas and Oklahoma.

DISCUSSION
The grand jury chose a review of several recent U.S. crude-by-rail derailments for comparative reasons. The after-action reports provide valuable findings and recommendations from disasters that can happen anywhere, anytime. The reports are particularly invaluable to first responders, and public safety agencies.

After-action reports detail each incident from the time of the initial report that entails the scope and severity of the incident. In response to the above disastrous incidents, the U.S. Department of Transportation and the Federal Pipeline and Hazardous Materials Safety Administration issued a “call to action” in January, calling on “rail company executives, associations, shippers and state and federal agencies to discuss how stakeholders can prevent and mitigate the consequences of rail accidents that involve flammable liquids.”

The grand jury also believes that examining the recent corn spill in Plumas County and comparing it with the way other derailments were handled can lead to information and recommendations that enhance and hopefully improve upon the vanguards (prevention, preparedness, response, recovery) of any future local potential disaster.

The tenets from the PHMSA call to action report produced similar recommendations — a strategic approach that promotes “effective preincident planning, preparedness, response, outreach and training.” One important point that the grand jury kept hearing was a difficulty and lack of communication between the railroad and local emergency management officials. One of the key elements the PHMSA call to action report specifically addresses is the absolute need for interaction and relevant guidance to first responders and local emergency management teams to “safely and effectively manage incidents.”

The report also called for preincident planning and communication with all organizations to learn about what is being transported. Emergency response teams must have the training to safely contain and protect themselves and the contaminate zone affected. The need for a local hazmat team cannot be overemphasized.

The following crude-by-rail disasters summarized in this grand jury report illustrate some of the potential circumstances other public safety agencies have had to deal with. Despite all the mandated safeguards dealing with hazardous material hauling, i.e., safe speeds, upgraded rail cars, railcar and track inspections, specialized training, etc., accidents can happen anytime and anywhere within transportation routes of hazardous materials.

Plumas County and the surrounding 12 counties in northeastern California lie within Region 3 of the State Emergency Services System. At the time of this report, Plumas County has no hazmat team. Upon any need for hazmat response, Plumas County must contact nearby Butte or Shasta teams. In more serious incidents, Plumas County would have to enlist state or federal emergency service agencies.

Lac-Megantic, Canada: In July 2013 a train carrying 72 tank cars full of crude oil exploded after the train braking system released, sending the unmanned train on a downhill run into the Canadian town of Lac-Megantic, Quebec. The runaway train crashed into a crowded downtown pub, killing 47 people and destroying over 30 buildings. According to the National Transportation Safety Board investigation, the train had been idling and unmanned for over seven hours and the emergency braking system disengaged. The train then rolled down the tracks for several miles, picking up speed and eventually derailing into downtown Lac-Megantic. Of the four disaster crude-by-rail spills mentioned in this report, the results from the official investigation determined that sheer neglect (train left running and unattended and braking system released, causing a runaway unmanned train) was the primary factor in the disaster.

Aliceville, Alabama: A 90-car train carrying Bakken crude derailed in November 2013 and exploded. Nearly 750,000 gallons of its 2 million gallon load spilled in wetlands in Alabama. Officials still assail cleanup operations today and report that containment booms and absorbent products were ineffective.

Lynchburg, Virginia: In April 2014 a CSX train carrying crude oil derailed and caught fire, spilling thousands of gallons of oil into the James River. Oil fires from the ruptured tanker cars burned for two days. Reports indicate that the tanker cars were all the new CPC-1232 model.

Casselton, North Dakota: In December 2013 a Burlington Northern Santa Fe train hauling grain derailed and fell across another set of tracks. Shortly after, a crude oil train heading in the opposite direction struck the derailed cars and derailed itself. Several tanker cars exploded. A slow response to the first incident set up the chain of events for the explosive second incident.

Montgomery, West Virginia: In February 2015 a train carrying crude oil in West Virginia derailed sending 27 tanker cars off the tracks. Twelve of those rail cars exploded, not at once, but randomly for up to 12 hours. The cause is still under investigation.

In the event of a local hazardous material disaster, the Plumas County Office of Emergency Services is notified and it determines the scope and magnitude of the incident and then contacts the Plumas County Board of Supervisors. Depending on the incident assessment of the Plumas County OES, the BOS has the authority to officially declare an emergency, which allows the Plumas County OES to request help from relevant local, state and federal agencies.

Through leadership and partnership with all first responders, each incident goes through a foundational process that includes prevention, preparedness, response and recovery. The first three steps of the mitigation process rely on the safe containment of the hazardous material as quickly as possible with a special focus on protecting human life (isolate, deny entry, protect life safely, mitigate). The recovery phase, however, can last for years. The Dunsmuir toxic spill, for example, seriously impacted the area for several years after. At the time of this report, the crude-by-rail spills were all still in the recovery phase. Fortunately, the Plumas County corn derailment had a minimal effect on the environment. The first three phases of emergency services mitigation at the corn spill served as a great training exercise for all agencies and first responders involved.

Recovery, in this case, was at a minimum in terms of environmental impact.

In regard to Plumas County hazmat, the grand jury has learned that the county must rely on local volunteers to devote their time as first responders.

Plumas County has had a difficult time finding enough volunteers to cover the entire county, and retaining volunteers after hazmat certification and specialized training has not worked out. All the local fire districts within Plumas County have been actively seeking volunteers.

FINDINGS
F1) The grand jury finds that communication between Plumas County public safety agencies and railroad officials is profoundly inadequate.

F2) The grand jury finds that the lack of spill and containment equipment along rail routes in Plumas County poses a direct threat to public safety and the natural environment.

F3) The grand jury finds that relying on hazmat response teams from surrounding counties compromises response times and threatens Plumas County public safety and natural resources.

F4) The grand jury finds that the lack of training of first responders concerning hazardous materials that they may have to deal with could have profound consequences.

F5) The grand jury finds that population centers within Plumas County that are in close proximity to railroads have grossly inadequate protection resources.

RECOMMENDATIONS
R1) The grand jury recommends Plumas County Emergency Services and the Plumas County Environment Health Agency establish direct local contact with Union Pacific and Burlington Northern Santa Fe and any hazardous material carrier that operates within the county.

R2) The grand jury recommends that Plumas County negotiate with railroad officials to have spill containment booms and absorbent kits in key strategic storage facilities in Plumas County.

R3) The grand jury recommends that the BOS find the means to provide hazmat training and certification to in-county first responders.

R4) The grand jury recommends more hazardous material training between first responders and all those involved in mitigating hazardous material disasters. Union Pacific, for example, offers tank car safety training in Roseville at the California Office of Emergency Services Specialized Training Institute every year. The training involves practically all aspects of hazardous material incident mitigation.

R5) The grand jury recommends that the BOS and Plumas County OES conduct a “what-if” evaluation for population centers within Plumas County that are within potential “blast zones” of crude-by-rail tanker cars.

    League of California Cities: Policy & Advocacy on Oil by Rail

    Repost from The League of California Cities


    Oil by Rail

    Since summer 2014, the League of California Cities has been carefully monitoring transport of crude oil and other hazardous materials by rail. Staff has researched this issue as part of an ongoing effort to educate our members, and to better advocate for improved rail safety.

    To that end, the League has taken the following actions on this issue:

    1. September 2014: Hosted a meeting on Oil by Rail, as part of the proceedings of the League’s Annual Conference in Los Angeles, to update members on recent state legislative and budgetary actions geared toward improving rail safety and improving first responder capability to address derailments involving hazardous materials
    2. September 2014: Issued a Comment Letter to the Department of Transportation on the pending federal rulemaking on rail safety improvements. In that letter, the League called for improved information flow to, and improved training for, first responders, as well as requiring improved safety features for tank cars transporting crude oil, which had already been recommended by federal regulatory agencies.
    3. October-November 2014: Held a series of educational webinars for League members (see links below). The goals of these webinars were to enhance members’ understanding of the transport of hazardous materials by rail generally, the extent of federal pre-emption of rail safety regulations, and the narrow remainder in which local governments are allowed to regulate.  Finally, staff shared with League members the League’s draft policy for safety recommendations to help guide local advocacy efforts on this issue with federal agencies and the relevant federal representatives.
    4. February 2015: Featured in Western City, the League’s monthly magazine, a cover article on this issue, entitled A Growing Risk: Oil Trains Raise Concerns by Cory Golden.
    5. February 20, 2015: The League Board of Directors approved the draft Recommendations for Improved Rail Safety as the League’s official policy.  These recommendations were based on common themes that arose in multiple state regulatory entities’ comment letters, including the Office of Emergency Services, the California Interagency Rail Safety Working Group, and the California Public Utilities Commission.
    6. March 6, 2015: League of California Cities Executive Director Chris McKenzie issued a letter to U.S. Transportation Secretary Anthony Foxx, submitting ten key recommendations for improving rail safety based on the League’s newly adopted policy, and requested expedited action on their implementation. The letter emphasized that the requested changes be implemented as mandates, rather than recommendations to the relevant industries, that they be accompanied by hard deadlines, and finally, that they be included in the final rule for the Safe Transportation of Crude Oil and Flammable Materials currently under consideration by federal authorities.

    Below are links to many of the items referred to above, as well as a sample letter for local jurisdictions to use in advocating to their federal elected officials and to Transportation Secretary Foxx.

    Background Materials

    Additional Resources

      Crude oil train shipments dwindle in California, for now

      Repost from The Sacramento Bee

      Crude oil train shipments dwindle in California, for now

      By Tony Bizjak, 03/11/2015 9:47 PM
      A BNSF train carries Bakken crude oil in the hills outside the Feather River Canyon last June.
      A BNSF train carries Bakken crude oil in the hills outside the Feather River Canyon last June. Jake Miille / Special to The Bee

      A year ago, California officials nervously braced for an influx of milelong trains carrying volatile crude oil to refineries in the Valley and on the coast – trains similar to the one that exploded two years ago in Canada, killing 47 people.

      The trains never arrived. Although tank cars full of oil now roll daily through cities in the Midwest and East, provoking fears of crashes and fires, the number of oil trains entering California has remained surprisingly low, state safety regulators say, no more than a handful a month. In recent weeks, they appear to have dwindled to almost nothing.

      The reasons appear to be mainly economic.

      “Crude oil shipments from out of state have virtually stopped,” said Paul King, rail safety chief at the California Public Utilities Commission. “Our information is that no crude oil trains are expected for the rest of this month.”

      Most notably, the BNSF Railway recently stopped running a 100-car train of volatile oil from the Bakken region of North Dakota through the Feather River Canyon and midtown Sacramento to the Bay Area. The trains, several a month, carried an estimated 3 million gallons of fuel each.

      Bakken oil, a lighter type of crude, similar to gasoline, has gained a fearsome reputation since it entered the national scene a few years ago. A string of Bakken train explosions around the country prompted the federal government to issue a warning last year about the oil’s unusual volatility and launch efforts to write stiffer regulations on rail transport, including a proposal to require sturdier tank cars for oil.

      Two more Bakken train derailments and explosive fires recently in West Virginia and Illinois triggered a new round of complaints that the federal government is dragging its heels in finalizing those regulations.

      The BNSF train through Sacramento was believed to be the only train in California carrying 100 cars of Bakken oil. PUC rail safety deputy director King said his commission’s rail monitors have been told by owners of a Richmond oil transfer station in the Bay Area that refiners stopped the shipments in November as global oil prices dropped.

      California Energy Commission fuels specialist Gordon Schremp said lower prices for other types of oil have made Bakken marginally less marketable in California, although that could easily change in the future.

      Other projects, like a Valero Refining Co. plan to run two 50-car oil trains daily through Sacramento beginning this spring to its Benicia plant, have not yet gotten off the ground, in part because of political opposition. Under pressure from state officials, including Attorney General Kamala Harris, Benicia recently announced it is redoing part of its environmental and risk analysis of the Valero rail project. Valero has said it intends to ship lighter fuels, but has declined to say whether those will be Bakken.

      State safety officials said the slowdown provides a bit more time to provide hazardous-materials training for more firefighters, as well as to put together a state rail-bridge inspection program and to upgrade disaster and waterway spill preparedness. But state officials said they still feel like they’re playing catch-up as they prepare for existing and future potential rail hazards.

      “This apparent reprieve may seem helpful, but we still have substantial amounts of … hazardous materials traveling across California’s rail lines,” said Kelly Huston, deputy director of the state Office of Emergency Services. “It only takes one train to create a major disaster.”

      Oil prices have begun rising again, and state officials say they expect Bakken shipments to Richmond and potentially elsewhere to be back on track at some point. “We don’t have any concrete info about when it will resume,” the PUC’s King said. “When prices come up, it is likely to resume, and that could be in months.”

      Federal emergency rules require railroads to report to states when they run trains carrying more than 1 million gallons of Bakken crude, and then again when that amount changes by 25 percent or more. BNSF sent the state Office of Emergency Services a brief notice on Wednesday acknowledging it had not shipped more than 1 million gallons of Bakken on any train in the last week. The notice does not say how long ago the shipments stopped or when they may resume.

      BNSF officials have contended in letters to the state that shipping information is proprietary and should be kept secret. A BNSF spokeswoman declined this week to discuss shipments with The Sacramento Bee, writing in an email, “Information regarding hazardous material shipments is only provided to emergency responders.”

      King of the PUC said his monitors estimate that eight or more non-Bakken crude oil trains had been entering the state monthly from Canadian and Colorado oil fields recently, headed to refineries or transfer stations. The Canadian oil, called tar sands, is not considered as explosive as Bakken, but two tar-sands trains derailed and exploded in recent weeks in Ontario, creating fires that lasted several days.

      The national concern about crude oil rail shipments follows a boom in domestic oil production, notably in North Dakota, where hydraulic-fracturing advances have freed up immense deposits of shale oil. Lacking pipeline access, North Dakota companies have turned to trains to ship the oil mainly to East and Gulf Coast refineries and to Washington state. Crude by rail shipments in the United States skyrocketed from 9,500 carloads in 2008 to 436,000 in 2013, according to congressional data.

      California continues to produce a sizable amount of its own oil in Kern County and receives marine shipments from Alaska and foreign sources. Still, a recent state energy-needs analysis estimates the state could receive as much as 23 percent of its oil via train or barge from continental sources, including North Dakota, Canada, Texas and other Western states, in the coming years. That estimate is based on plans by refineries in Benicia, San Luis Obispo and Kern County to build rail facilities that can accommodate large crude transports.