San Clemente Real Time Radiation Monitoring Now Active!
SanOnofre.Com/Radiation
Why Is Publicly Available Radiation Monitoring So Important
To All Residents Of Southern California?
San Onofre Shut Down 1/31/2012 – from…
Continue readingSan Clemente Real Time Radiation Monitoring Now Active!
SanOnofre.Com/Radiation
Why Is Publicly Available Radiation Monitoring So Important
To All Residents Of Southern California?
San Onofre Shut Down 1/31/2012 – from…
Continue readingAmerican sailors on the USS Ronald Reagan were exposed to radiation from Fukushima. Many are sick. Some have died. Why can’t they get justice? Our latest article, on Counterpunch and on Beyond Nuclear International, looks at the two class action…
Continue readingBeyond Nuclear is expanding! We are excited to introduce our new initiative, Beyond Nuclear International.
We created Beyond Nuclear International, a dynamic new web platform, in order to tell the anti-nuclear story from the humanitarian perspective a…
JOINT PRESS RELEASE — BEYOND NUCLEAR, DIANUKE
Groups condemn French-India nuclear deal to be signed on Fukushima anniversary
French president, Emmanuel Macron, should not be imposing the untested, expensive and technically troubled French EPR reactor …
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Timeline Inquiries & Comments (Julia Chunn‐Heer, San Diego Policy Manager)
SCE Response: No, the timeline has not changed. Fuel transfer from wet to dry storage could start as early as December 2017 following on‐site NRC reviews.
FACTS ON SAN ONOFRE THAT ALL SURFRIDER MEMBERS SHOULD KNOW:
a) SCE’s answer implies the Holtec 37-fuel assembly thin-wall canisters are safe. However, the NRC has approved a relatively new unproven design that they know cannot be adequately inspected, maintained, monitored or repaired to PREVENT radioactive leaks and that they know are vulnerable to short-term cracking. SCE has no approved plan in place to stop leaks or replace canisters.
b) The NRC approved record high temperatures for the Holtec thin-wall canisters (almost double those previously allowed). Previous maximum canister heat load at San Onofre was 15.29 Kw, with an average much lower than that. SCE is loading the Holtec canisters at just under 30 Kw. This allows SCE to expedite fuel from the pools to dry storage. Expediting fuel into dry storage is a major cost savings to SCE. Maintaining the pools is a high overhead cost.
c) Since canisters are welded shut, they have no way to verify the condition of the fuel assemblies for storage or transport
2) According to the settlement agreement, there is a commitment to investigate a monitoring plan by 2020:
Q) When will the monitoring plan be completed?
SCE Response: The Coastal Development Permit approved by the Coastal Commission in 2015 includes a condition requiring SCE to develop an Inspection & Maintenance (I&M) Program by October 2022. As part of the settlement agreement, SCE agreed to expedite preparation of that program by two years, to 2020.
It is important to note, all dry cask storage facilities at U.S. nuclear plants are monitored once the system is in use. This activity is separate from the I&M Program discussed above.
Routine monitoring includes:
In addition, the NRC requires an Aging Management Plan (AMP) to be in place after the system has been licensed for 20 years.
Q) When will the monitoring plan be implemented?
SCE Response: As noted in the prior question, routine monitoring of the UMAX system will commence immediately upon installation of the first canister, as required by the NRC. This monitoring, which includes temperature surveillance and operator visual inspections, is consistent with the system technical specifications and final safety analysis report, and was not impacted by the settlement agreement.
Q) To truly promote SCE’s principles of “safety, stewardship, and engagement”, we feel this plan should be fully developed before more spent fuel is moved into dry storage. Why not go above and beyond the bare minimum requirements of the NRC?
SCE Response: Under NRC regulations, the AMP is not required until 2035. Therefore, SCE has gone above and beyond NRC requirements by agreeing to develop an I&M Program by 2020, which will provide for more formal monitoring at an earlier stage. In addition, as mentioned earlier, routine monitoring of dry cask storage facilities is performed as soon as the fuel is moved into dry storage.
FACTS:
3) Is SCE looking into other options for offsite storage since Palo Verde has said publicly they do not want San Onofre’s waste?
SCE Response: SCE is closely monitoring, in particular, the proposed consolidated interim storage facilities in West Texas and East New Mexico. SCE will be submitting a formal request to Palo Verde to store the San Onofre used nuclear fuel.
FACTS:
4) We ask SCE to please provide our communities with more certainty that canisters will remain intact and safe, prior to burying nuclear waste so close to the ocean, on a dynamic coastline and bluff face, exposed to impacts from sea level rise.
We urge SCE to continually and thoroughly monitor all canisters onsite due to the significant risks if a leak were to occur, and the amount of unknowns and unintended consequences that could arise.
SCE Response: Used nuclear fuel has been safely stored in dry storage facilities for more than three decades in the United States. The canisters are licensed by the NRC. In addition, state regulatory review was performed to ensure the dry storage facility complies with the California Coastal Act. The California Coastal Commission found that the project would be consistent with the hazards, marine resources, water quality and view protection policies of the Coastal Act. These federal and state regulatory processes included a thorough evaluation of radiological and environmental concerns, and provide confidence that the fuel can be safely stored at San Onofre.
Even in the unlikely event that a leak were to occur, this would not give rise to significant risks or consequences. There would be minimal to no impact to the site or public, where the following is anticipated:
To address potential flaws, SCE is working with vendors/industry to develop mitigation techniques. Techniques under development include:
1. Remote weld repair
2. Canister‐in‐canister encapsulation
3. Transport cask to store/contain compromised canister
Safety is our core principle. SCE has and will continue to monitor the dry cask systems and safeguard the used nuclear fuel until government approved long‐term storage options are available in order to protect the people and environment surrounding San Onofre.
FACTS
Canister Integrity Inquiries (Katie Day, Staff Scientist at Surfrider Headquarters)
5) The UMAX Safety Evaluation Report was designed for an underground system (hence the U in UMAX). Since SONGS is planning on using a partially buried approach to account for the water table’s proximity:
Do these safety assurances apply?
SCE Response: Yes, since the SONGS system is not fully underground, an additional analysis was conducted for the UMAX system based on the SONGS configuration using the berm design.
Is there an approved updated safety evaluation report specific to the model and design used at SONGS?
SCE Response: Yes, the dry storage system at SONGS is approved by the NRC for storage (as well as transportation). An NRC approved cask is one that has undergone a technical review of its safety aspects and been found to be adequate to store used fuel at a site that has been evaluated by the licensee to meet all of the NRC’s requirements in 10 CFR Part 72.
FACTS:
6) The “CEC is meant to further resist corrosion” yet Holtec and SCE have noted that vents could allow rainwater to enter the CEC. They have been designed to capture that water between the CEC and the sealed canister to prevent that water from escaping into the natural environment:
Q) Since rain in coastal environments has a higher salt content, how can you be so positive that corrosion will not be exacerbated?
SCE Response: The stainless steel material (Type 316L) used in the SONGS dry cask storage system is resistant to corrosion and degradation. Currently there are over 2,000 stainless steel canisters loaded with used fuel in the U.S. – some in marine environments similar to San Onofre, such as Calvert Cliffs Nuclear Power Plant, located on the shores of the Chesapeake Bay, Maryland. Calvert Cliffs has stainless steel canisters that have been in service for over 20 years. See “SONGS Used Fuel Management – Defense in Depth Report, September 8, 2017”
Regarding rain water, as described in the Final Safety Analysis Report, the HI‐STORM UMAX is designed to direct storm water and snow/ice melt‐off away from the Cavity Enclosure Container (CEC) Flange and the Closure Lid where the air passages are located. Additionally, storm water intrusion tests found no water collected inside the module. In the unlikely event that rainwater enters the inlet vents, it would remain within the space between the CEC and the divider shell and therefore have little potential contact with the Multi‐Purpose Canister (MPC) (what you refer to as the “sealed canister”) which contains the used nuclear fuel. If the CEC experiences any degradation, a local repair would be performed and would not affect the overall integrity of the ISFSI.
Q) How will water be removed and handled when canisters get moved or transferred offsite?
SCE Response: If water is detected within the CEC, it would be pumped out.
Q) Since the CEC has vents, does that mean that there is only one completely sealed barrier between HLRW and the environment, workers, and nearby communities?
SCE Response: There are two barriers between the used fuel pellets and the outside environment: the zirconium fuel‐pin cladding and the stainless steel MPC. Uranium fuel pellets are placed within zirconium tubes during manufacturing, which are sealed shut, and the Uranium and all of the fission products created during operation remain within the sealed tubes during normal operation and thereafter. In the UMAX dry storage system, the assemblies of fuel pins (“fuel assemblies”) are placed inside the 5/8” thick stainless steel MPC.
FACTS:
7) Edison has mentioned that it is possible to transport a cracked canister because Hi‐STAR transport casks do not take credit for internal canisters:
Q) How would a cracked canister be placed in the transport cask without causing exposure to staff and the surrounding environment ie SanO, Trestles, San Clemente, home of Surfrider Foundations World HQ?
SCE Response: We first want to clarify that your initial statement may misunderstand SCE’s prior comments on transporting casks. SCE has been asked if it’s possible to transport a cracked SONGS canister. We’ve responded by saying, it is possible, but with conditions. Some transport casks may accept a canister with defects, and others may require modification or additional evaluation. These types of transport may require additional license evaluation at the time of shipment. Additional evaluation will need to be done should a cracked canister in the US be identified. No leaks have been identified in the 2000 welded steel canisters in the U.S.
Understanding that these discussions are hypothetical, the cracking of concern would be microscopic in nature. Some relatively benign fission product gases may be released initially through microscopic cracks; the particulate will be retained within the canister. Microscopic cracking will not result in a tangible decrease in shielding effectiveness and does not impact canister integrity for transportation or dose to workers. Also note that the transportation cask provides the majority of radiation shielding during handling and transportation.
Q) The plan of moving a cracked canister into a larger intact canister as a safety precaution sounds great, except again, how would a cracked canister get transferred without exposing staff and the environment to radioactive gases?
SCE Response: See response above.
FACTS:
Q) If a crack, or initial pitting is identified during routine monitoring, will Edison notify the public?
SCE Response: As with all issues important to the public, SCE intends to keep the public updated, such as through the Community Engagement Panel. (let us not forget they waited DAYS to inform the public that they had leaked radiation into our community, our ocean, waves and beaches)
FACTS:
Q) Is there an NDE in development that would not require moving a canister?
SCE Response: Yes. For example, see the eddy current array inspection probe described in EPRI’s September 14, 2017, CEP presentation. In general, the industry’s goal is to employ in‐situ NDE equipment.
FACTS:
Settlement Inquiries (Denise Erkeneff, South Orange County Chapter Manager)
Q) What is the significance of the settlement agreement in the decommissioning process?
SCE Response: The Settlement Agreement does not directly pertain to the decommissioning process. The Settlement Agreement specifically addresses SCE’s onsite ISFSIs and steps SCE will take to assess the feasibility of relocating SONGS spent fuel to an offsite storage facility. In exchange for SCE’s commitments made as part of the Settlement, Plaintiffs dismissed their legal challenge. This allows for SCE to complete the ISFSI and to transfer all spent fuel to dry storage pending the availability of an offsite storage facility. The timely transfer of fuel to dry storage will help ensure that SCE can promptly proceed with decommissioning the facility.
Please see attached Settlement Agreement and Press Release/Settlement Agreement summary.
FACTS:
Q) How has the settlement agreement made SCE change their plans and operating procedures for the SONGS waste storage issue?
SCE Response: SCE’s plans for offloading spent fuel to the ISFSI have not changed. In addition, SCE’s operating procedures are in accordance with NRC requirements and those are not impacted by the Settlement Agreement. In terms of SCE’s long‐term plans, the Settlement Agreement requires SCE to use commercially reasonable efforts to relocate the spent fuel to an offsite storage facility. In furtherance of that objective, the settlement identifies specific steps SCE will take, including the following:
These commitments could result in the transfer of fuel offsite in a shorter timeframe than SCE originally contemplated. SCE’s plans anticipated that SONGS spent fuel would be transferred to a government‐owned federal repository, which would result in fuel remaining onsite until 2049. In fulfilling its settlement commitments, SCE may be successful in improving this schedule. Pending availability of an offsite storage facility, SCE will continue to safely store the spent fuel in the onsite ISFSIs.
FACTS:
Q) Are there any updates on the timeline for securing offsite transport?
SCE Response: No, not at this time. SCE is diligently working to satisfy its commitments under the Settlement Agreement, which includes the development of a conceptual transportation plan.
FACTS:
Q0 Will monthly progress reports, those SCE is required to provide to plaintiffs, be publicly available?
SCE Response: Yes. SCE plans to make these reports available through the Community Engagement Panel.
FACT:
I’m sure these SCE reports will be just as helpful and informative as the rest of SCE’s information. – Donna Gilmore
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| Call Surfrider Today! (949) 492-8170 |
Timeline Inquiries & Comments (Julia Chunn‐Heer, San Diego Policy Manager)
SCE Response: No, the timeline has not changed. Fuel transfer from wet to dry storage could start as early as December 2017 following on‐site NRC reviews.
FACTS ON SAN ONOFRE THAT ALL SURFRIDER MEMBERS SHOULD KNOW:
a) SCE’s answer implies the Holtec 37-fuel assembly thin-wall canisters are safe. However, the NRC has approved a relatively new unproven design that they know cannot be adequately inspected, maintained, monitored or repaired to PREVENT radioactive leaks and that they know are vulnerable to short-term cracking. SCE has no approved plan in place to stop leaks or replace canisters.
b) The NRC approved record high temperatures for the Holtec thin-wall canisters (almost double those previously allowed). Previous maximum canister heat load at San Onofre was 15.29 Kw, with an average much lower than that. SCE is loading the Holtec canisters at just under 30 Kw. This allows SCE to expedite fuel from the pools to dry storage. Expediting fuel into dry storage is a major cost savings to SCE. Maintaining the pools is a high overhead cost.
c) Since canisters are welded shut, they have no way to verify the condition of the fuel assemblies for storage or transport
2) According to the settlement agreement, there is a commitment to investigate a monitoring plan by 2020:
Q) When will the monitoring plan be completed?
SCE Response: The Coastal Development Permit approved by the Coastal Commission in 2015 includes a condition requiring SCE to develop an Inspection & Maintenance (I&M) Program by October 2022. As part of the settlement agreement, SCE agreed to expedite preparation of that program by two years, to 2020.
It is important to note, all dry cask storage facilities at U.S. nuclear plants are monitored once the system is in use. This activity is separate from the I&M Program discussed above.
Routine monitoring includes:
In addition, the NRC requires an Aging Management Plan (AMP) to be in place after the system has been licensed for 20 years.
Q) When will the monitoring plan be implemented?
SCE Response: As noted in the prior question, routine monitoring of the UMAX system will commence immediately upon installation of the first canister, as required by the NRC. This monitoring, which includes temperature surveillance and operator visual inspections, is consistent with the system technical specifications and final safety analysis report, and was not impacted by the settlement agreement.
Q) To truly promote SCE’s principles of “safety, stewardship, and engagement”, we feel this plan should be fully developed before more spent fuel is moved into dry storage. Why not go above and beyond the bare minimum requirements of the NRC?
SCE Response: Under NRC regulations, the AMP is not required until 2035. Therefore, SCE has gone above and beyond NRC requirements by agreeing to develop an I&M Program by 2020, which will provide for more formal monitoring at an earlier stage. In addition, as mentioned earlier, routine monitoring of dry cask storage facilities is performed as soon as the fuel is moved into dry storage.
FACTS:
3) Is SCE looking into other options for offsite storage since Palo Verde has said publicly they do not want San Onofre’s waste?
SCE Response: SCE is closely monitoring, in particular, the proposed consolidated interim storage facilities in West Texas and East New Mexico. SCE will be submitting a formal request to Palo Verde to store the San Onofre used nuclear fuel.
FACTS:
4) We ask SCE to please provide our communities with more certainty that canisters will remain intact and safe, prior to burying nuclear waste so close to the ocean, on a dynamic coastline and bluff face, exposed to impacts from sea level rise.
We urge SCE to continually and thoroughly monitor all canisters onsite due to the significant risks if a leak were to occur, and the amount of unknowns and unintended consequences that could arise.
SCE Response: Used nuclear fuel has been safely stored in dry storage facilities for more than three decades in the United States. The canisters are licensed by the NRC. In addition, state regulatory review was performed to ensure the dry storage facility complies with the California Coastal Act. The California Coastal Commission found that the project would be consistent with the hazards, marine resources, water quality and view protection policies of the Coastal Act. These federal and state regulatory processes included a thorough evaluation of radiological and environmental concerns, and provide confidence that the fuel can be safely stored at San Onofre.
Even in the unlikely event that a leak were to occur, this would not give rise to significant risks or consequences. There would be minimal to no impact to the site or public, where the following is anticipated:
To address potential flaws, SCE is working with vendors/industry to develop mitigation techniques. Techniques under development include:
1. Remote weld repair
2. Canister‐in‐canister encapsulation
3. Transport cask to store/contain compromised canister
Safety is our core principle. SCE has and will continue to monitor the dry cask systems and safeguard the used nuclear fuel until government approved long‐term storage options are available in order to protect the people and environment surrounding San Onofre.
FACTS
Canister Integrity Inquiries (Katie Day, Staff Scientist at Surfrider Headquarters)
5) The UMAX Safety Evaluation Report was designed for an underground system (hence the U in UMAX). Since SONGS is planning on using a partially buried approach to account for the water table’s proximity:
Do these safety assurances apply?
SCE Response: Yes, since the SONGS system is not fully underground, an additional analysis was conducted for the UMAX system based on the SONGS configuration using the berm design.
Is there an approved updated safety evaluation report specific to the model and design used at SONGS?
SCE Response: Yes, the dry storage system at SONGS is approved by the NRC for storage (as well as transportation). An NRC approved cask is one that has undergone a technical review of its safety aspects and been found to be adequate to store used fuel at a site that has been evaluated by the licensee to meet all of the NRC’s requirements in 10 CFR Part 72.
FACTS:
6) The “CEC is meant to further resist corrosion” yet Holtec and SCE have noted that vents could allow rainwater to enter the CEC. They have been designed to capture that water between the CEC and the sealed canister to prevent that water from escaping into the natural environment:
Q) Since rain in coastal environments has a higher salt content, how can you be so positive that corrosion will not be exacerbated?
SCE Response: The stainless steel material (Type 316L) used in the SONGS dry cask storage system is resistant to corrosion and degradation. Currently there are over 2,000 stainless steel canisters loaded with used fuel in the U.S. – some in marine environments similar to San Onofre, such as Calvert Cliffs Nuclear Power Plant, located on the shores of the Chesapeake Bay, Maryland. Calvert Cliffs has stainless steel canisters that have been in service for over 20 years. See “SONGS Used Fuel Management – Defense in Depth Report, September 8, 2017”
Regarding rain water, as described in the Final Safety Analysis Report, the HI‐STORM UMAX is designed to direct storm water and snow/ice melt‐off away from the Cavity Enclosure Container (CEC) Flange and the Closure Lid where the air passages are located. Additionally, storm water intrusion tests found no water collected inside the module. In the unlikely event that rainwater enters the inlet vents, it would remain within the space between the CEC and the divider shell and therefore have little potential contact with the Multi‐Purpose Canister (MPC) (what you refer to as the “sealed canister”) which contains the used nuclear fuel. If the CEC experiences any degradation, a local repair would be performed and would not affect the overall integrity of the ISFSI.
Q) How will water be removed and handled when canisters get moved or transferred offsite?
SCE Response: If water is detected within the CEC, it would be pumped out.
Q) Since the CEC has vents, does that mean that there is only one completely sealed barrier between HLRW and the environment, workers, and nearby communities?
SCE Response: There are two barriers between the used fuel pellets and the outside environment: the zirconium fuel‐pin cladding and the stainless steel MPC. Uranium fuel pellets are placed within zirconium tubes during manufacturing, which are sealed shut, and the Uranium and all of the fission products created during operation remain within the sealed tubes during normal operation and thereafter. In the UMAX dry storage system, the assemblies of fuel pins (“fuel assemblies”) are placed inside the 5/8” thick stainless steel MPC.
FACTS:
7) Edison has mentioned that it is possible to transport a cracked canister because Hi‐STAR transport casks do not take credit for internal canisters:
Q) How would a cracked canister be placed in the transport cask without causing exposure to staff and the surrounding environment ie SanO, Trestles, San Clemente, home of Surfrider Foundations World HQ?
SCE Response: We first want to clarify that your initial statement may misunderstand SCE’s prior comments on transporting casks. SCE has been asked if it’s possible to transport a cracked SONGS canister. We’ve responded by saying, it is possible, but with conditions. Some transport casks may accept a canister with defects, and others may require modification or additional evaluation. These types of transport may require additional license evaluation at the time of shipment. Additional evaluation will need to be done should a cracked canister in the US be identified. No leaks have been identified in the 2000 welded steel canisters in the U.S.
Understanding that these discussions are hypothetical, the cracking of concern would be microscopic in nature. Some relatively benign fission product gases may be released initially through microscopic cracks; the particulate will be retained within the canister. Microscopic cracking will not result in a tangible decrease in shielding effectiveness and does not impact canister integrity for transportation or dose to workers. Also note that the transportation cask provides the majority of radiation shielding during handling and transportation.
Q) The plan of moving a cracked canister into a larger intact canister as a safety precaution sounds great, except again, how would a cracked canister get transferred without exposing staff and the environment to radioactive gases?
SCE Response: See response above.
FACTS:
Q) If a crack, or initial pitting is identified during routine monitoring, will Edison notify the public?
SCE Response: As with all issues important to the public, SCE intends to keep the public updated, such as through the Community Engagement Panel. (let us not forget they waited DAYS to inform the public that they had leaked radiation into our community, our ocean, waves and beaches)
FACTS:
Q) Is there an NDE in development that would not require moving a canister?
SCE Response: Yes. For example, see the eddy current array inspection probe described in EPRI’s September 14, 2017, CEP presentation. In general, the industry’s goal is to employ in‐situ NDE equipment.
FACTS:
Settlement Inquiries (Denise Erkeneff, South Orange County Chapter Manager)
Q) What is the significance of the settlement agreement in the decommissioning process?
SCE Response: The Settlement Agreement does not directly pertain to the decommissioning process. The Settlement Agreement specifically addresses SCE’s onsite ISFSIs and steps SCE will take to assess the feasibility of relocating SONGS spent fuel to an offsite storage facility. In exchange for SCE’s commitments made as part of the Settlement, Plaintiffs dismissed their legal challenge. This allows for SCE to complete the ISFSI and to transfer all spent fuel to dry storage pending the availability of an offsite storage facility. The timely transfer of fuel to dry storage will help ensure that SCE can promptly proceed with decommissioning the facility.
Please see attached Settlement Agreement and Press Release/Settlement Agreement summary.
FACTS:
Q) How has the settlement agreement made SCE change their plans and operating procedures for the SONGS waste storage issue?
SCE Response: SCE’s plans for offloading spent fuel to the ISFSI have not changed. In addition, SCE’s operating procedures are in accordance with NRC requirements and those are not impacted by the Settlement Agreement. In terms of SCE’s long‐term plans, the Settlement Agreement requires SCE to use commercially reasonable efforts to relocate the spent fuel to an offsite storage facility. In furtherance of that objective, the settlement identifies specific steps SCE will take, including the following:
These commitments could result in the transfer of fuel offsite in a shorter timeframe than SCE originally contemplated. SCE’s plans anticipated that SONGS spent fuel would be transferred to a government‐owned federal repository, which would result in fuel remaining onsite until 2049. In fulfilling its settlement commitments, SCE may be successful in improving this schedule. Pending availability of an offsite storage facility, SCE will continue to safely store the spent fuel in the onsite ISFSIs.
FACTS:
Q) Are there any updates on the timeline for securing offsite transport?
SCE Response: No, not at this time. SCE is diligently working to satisfy its commitments under the Settlement Agreement, which includes the development of a conceptual transportation plan.
FACTS:
Q0 Will monthly progress reports, those SCE is required to provide to plaintiffs, be publicly available?
SCE Response: Yes. SCE plans to make these reports available through the Community Engagement Panel.
FACT:
I’m sure these SCE reports will be just as helpful and informative as the rest of SCE’s information. – Donna Gilmore
Call Surfrider Today! (949) 492-8170 Southern California Edison’s (SCE) has not included many important facts in their responses to Surfrider Foundations questions regarding the nuke dump at San Onofre See “FACTS” below SCE’s responses. A Printable PDF Version of this post is found at SanOnofreSafety.org.
Timeline Inquiries & Comments (Julia Chunn‐Heer, San Diego Policy Manager)
SCE Response: No, the timeline has not changed. Fuel transfer from wet to dry storage could start as early as December 2017 following on‐site NRC reviews.
FACTS ON SAN ONOFRE THAT ALL SURFRIDER MEMBERS SHOULD KNOW:
Continue reading![]() |
| Call Surfrider Today! (949) 492-8170 |
Timeline Inquiries & Comments (Julia Chunn‐Heer, San Diego Policy Manager)
SCE Response: No, the timeline has not changed. Fuel transfer from wet to dry storage could start as early as December 2017 following on‐site NRC reviews.
FACTS ON SAN ONOFRE THAT ALL SURFRIDER MEMBERS SHOULD KNOW:
a) SCE’s answer implies the Holtec 37-fuel assembly thin-wall canisters are safe. However, the NRC has approved a relatively new unproven design that they know cannot be adequately inspected, maintained, monitored or repaired to PREVENT radioactive leaks and that they know are vulnerable to short-term cracking. SCE has no approved plan in place to stop leaks or replace canisters.
b) The NRC approved record high temperatures for the Holtec thin-wall canisters (almost double those previously allowed). Previous maximum canister heat load at San Onofre was 15.29 Kw, with an average much lower than that. SCE is loading the Holtec canisters at just under 30 Kw. This allows SCE to expedite fuel from the pools to dry storage. Expediting fuel into dry storage is a major cost savings to SCE. Maintaining the pools is a high overhead cost.
c) Since canisters are welded shut, they have no way to verify the condition of the fuel assemblies for storage or transport
2) According to the settlement agreement, there is a commitment to investigate a monitoring plan by 2020:
Q) When will the monitoring plan be completed?
SCE Response: The Coastal Development Permit approved by the Coastal Commission in 2015 includes a condition requiring SCE to develop an Inspection & Maintenance (I&M) Program by October 2022. As part of the settlement agreement, SCE agreed to expedite preparation of that program by two years, to 2020.
It is important to note, all dry cask storage facilities at U.S. nuclear plants are monitored once the system is in use. This activity is separate from the I&M Program discussed above.
Routine monitoring includes:
In addition, the NRC requires an Aging Management Plan (AMP) to be in place after the system has been licensed for 20 years.
Q) When will the monitoring plan be implemented?
SCE Response: As noted in the prior question, routine monitoring of the UMAX system will commence immediately upon installation of the first canister, as required by the NRC. This monitoring, which includes temperature surveillance and operator visual inspections, is consistent with the system technical specifications and final safety analysis report, and was not impacted by the settlement agreement.
Q) To truly promote SCE’s principles of “safety, stewardship, and engagement”, we feel this plan should be fully developed before more spent fuel is moved into dry storage. Why not go above and beyond the bare minimum requirements of the NRC?
SCE Response: Under NRC regulations, the AMP is not required until 2035. Therefore, SCE has gone above and beyond NRC requirements by agreeing to develop an I&M Program by 2020, which will provide for more formal monitoring at an earlier stage. In addition, as mentioned earlier, routine monitoring of dry cask storage facilities is performed as soon as the fuel is moved into dry storage.
FACTS:
3) Is SCE looking into other options for offsite storage since Palo Verde has said publicly they do not want San Onofre’s waste?
SCE Response: SCE is closely monitoring, in particular, the proposed consolidated interim storage facilities in West Texas and East New Mexico. SCE will be submitting a formal request to Palo Verde to store the San Onofre used nuclear fuel.
FACTS:
4) We ask SCE to please provide our communities with more certainty that canisters will remain intact and safe, prior to burying nuclear waste so close to the ocean, on a dynamic coastline and bluff face, exposed to impacts from sea level rise.
We urge SCE to continually and thoroughly monitor all canisters onsite due to the significant risks if a leak were to occur, and the amount of unknowns and unintended consequences that could arise.
SCE Response: Used nuclear fuel has been safely stored in dry storage facilities for more than three decades in the United States. The canisters are licensed by the NRC. In addition, state regulatory review was performed to ensure the dry storage facility complies with the California Coastal Act. The California Coastal Commission found that the project would be consistent with the hazards, marine resources, water quality and view protection policies of the Coastal Act. These federal and state regulatory processes included a thorough evaluation of radiological and environmental concerns, and provide confidence that the fuel can be safely stored at San Onofre.
Even in the unlikely event that a leak were to occur, this would not give rise to significant risks or consequences. There would be minimal to no impact to the site or public, where the following is anticipated:
To address potential flaws, SCE is working with vendors/industry to develop mitigation techniques. Techniques under development include:
1. Remote weld repair
2. Canister‐in‐canister encapsulation
3. Transport cask to store/contain compromised canister
Safety is our core principle. SCE has and will continue to monitor the dry cask systems and safeguard the used nuclear fuel until government approved long‐term storage options are available in order to protect the people and environment surrounding San Onofre.
FACTS
Canister Integrity Inquiries (Katie Day, Staff Scientist at Surfrider Headquarters)
5) The UMAX Safety Evaluation Report was designed for an underground system (hence the U in UMAX). Since SONGS is planning on using a partially buried approach to account for the water table’s proximity:
Do these safety assurances apply?
SCE Response: Yes, since the SONGS system is not fully underground, an additional analysis was conducted for the UMAX system based on the SONGS configuration using the berm design.
Is there an approved updated safety evaluation report specific to the model and design used at SONGS?
SCE Response: Yes, the dry storage system at SONGS is approved by the NRC for storage (as well as transportation). An NRC approved cask is one that has undergone a technical review of its safety aspects and been found to be adequate to store used fuel at a site that has been evaluated by the licensee to meet all of the NRC’s requirements in 10 CFR Part 72.
FACTS:
6) The “CEC is meant to further resist corrosion” yet Holtec and SCE have noted that vents could allow rainwater to enter the CEC. They have been designed to capture that water between the CEC and the sealed canister to prevent that water from escaping into the natural environment:
Q) Since rain in coastal environments has a higher salt content, how can you be so positive that corrosion will not be exacerbated?
SCE Response: The stainless steel material (Type 316L) used in the SONGS dry cask storage system is resistant to corrosion and degradation. Currently there are over 2,000 stainless steel canisters loaded with used fuel in the U.S. – some in marine environments similar to San Onofre, such as Calvert Cliffs Nuclear Power Plant, located on the shores of the Chesapeake Bay, Maryland. Calvert Cliffs has stainless steel canisters that have been in service for over 20 years. See “SONGS Used Fuel Management – Defense in Depth Report, September 8, 2017”
Regarding rain water, as described in the Final Safety Analysis Report, the HI‐STORM UMAX is designed to direct storm water and snow/ice melt‐off away from the Cavity Enclosure Container (CEC) Flange and the Closure Lid where the air passages are located. Additionally, storm water intrusion tests found no water collected inside the module. In the unlikely event that rainwater enters the inlet vents, it would remain within the space between the CEC and the divider shell and therefore have little potential contact with the Multi‐Purpose Canister (MPC) (what you refer to as the “sealed canister”) which contains the used nuclear fuel. If the CEC experiences any degradation, a local repair would be performed and would not affect the overall integrity of the ISFSI.
Q) How will water be removed and handled when canisters get moved or transferred offsite?
SCE Response: If water is detected within the CEC, it would be pumped out.
Q) Since the CEC has vents, does that mean that there is only one completely sealed barrier between HLRW and the environment, workers, and nearby communities?
SCE Response: There are two barriers between the used fuel pellets and the outside environment: the zirconium fuel‐pin cladding and the stainless steel MPC. Uranium fuel pellets are placed within zirconium tubes during manufacturing, which are sealed shut, and the Uranium and all of the fission products created during operation remain within the sealed tubes during normal operation and thereafter. In the UMAX dry storage system, the assemblies of fuel pins (“fuel assemblies”) are placed inside the 5/8” thick stainless steel MPC.
FACTS:
7) Edison has mentioned that it is possible to transport a cracked canister because Hi‐STAR transport casks do not take credit for internal canisters:
Q) How would a cracked canister be placed in the transport cask without causing exposure to staff and the surrounding environment ie SanO, Trestles, San Clemente, home of Surfrider Foundations World HQ?
SCE Response: We first want to clarify that your initial statement may misunderstand SCE’s prior comments on transporting casks. SCE has been asked if it’s possible to transport a cracked SONGS canister. We’ve responded by saying, it is possible, but with conditions. Some transport casks may accept a canister with defects, and others may require modification or additional evaluation. These types of transport may require additional license evaluation at the time of shipment. Additional evaluation will need to be done should a cracked canister in the US be identified. No leaks have been identified in the 2000 welded steel canisters in the U.S.
Understanding that these discussions are hypothetical, the cracking of concern would be microscopic in nature. Some relatively benign fission product gases may be released initially through microscopic cracks; the particulate will be retained within the canister. Microscopic cracking will not result in a tangible decrease in shielding effectiveness and does not impact canister integrity for transportation or dose to workers. Also note that the transportation cask provides the majority of radiation shielding during handling and transportation.
Q) The plan of moving a cracked canister into a larger intact canister as a safety precaution sounds great, except again, how would a cracked canister get transferred without exposing staff and the environment to radioactive gases?
SCE Response: See response above.
FACTS:
Q) If a crack, or initial pitting is identified during routine monitoring, will Edison notify the public?
SCE Response: As with all issues important to the public, SCE intends to keep the public updated, such as through the Community Engagement Panel. (let us not forget they waited DAYS to inform the public that they had leaked radiation into our community, our ocean, waves and beaches)
FACTS:
Q) Is there an NDE in development that would not require moving a canister?
SCE Response: Yes. For example, see the eddy current array inspection probe described in EPRI’s September 14, 2017, CEP presentation. In general, the industry’s goal is to employ in‐situ NDE equipment.
FACTS:
Settlement Inquiries (Denise Erkeneff, South Orange County Chapter Manager)
Q) What is the significance of the settlement agreement in the decommissioning process?
SCE Response: The Settlement Agreement does not directly pertain to the decommissioning process. The Settlement Agreement specifically addresses SCE’s onsite ISFSIs and steps SCE will take to assess the feasibility of relocating SONGS spent fuel to an offsite storage facility. In exchange for SCE’s commitments made as part of the Settlement, Plaintiffs dismissed their legal challenge. This allows for SCE to complete the ISFSI and to transfer all spent fuel to dry storage pending the availability of an offsite storage facility. The timely transfer of fuel to dry storage will help ensure that SCE can promptly proceed with decommissioning the facility.
Please see attached Settlement Agreement and Press Release/Settlement Agreement summary.
FACTS:
Q) How has the settlement agreement made SCE change their plans and operating procedures for the SONGS waste storage issue?
SCE Response: SCE’s plans for offloading spent fuel to the ISFSI have not changed. In addition, SCE’s operating procedures are in accordance with NRC requirements and those are not impacted by the Settlement Agreement. In terms of SCE’s long‐term plans, the Settlement Agreement requires SCE to use commercially reasonable efforts to relocate the spent fuel to an offsite storage facility. In furtherance of that objective, the settlement identifies specific steps SCE will take, including the following:
These commitments could result in the transfer of fuel offsite in a shorter timeframe than SCE originally contemplated. SCE’s plans anticipated that SONGS spent fuel would be transferred to a government‐owned federal repository, which would result in fuel remaining onsite until 2049. In fulfilling its settlement commitments, SCE may be successful in improving this schedule. Pending availability of an offsite storage facility, SCE will continue to safely store the spent fuel in the onsite ISFSIs.
FACTS:
Q) Are there any updates on the timeline for securing offsite transport?
SCE Response: No, not at this time. SCE is diligently working to satisfy its commitments under the Settlement Agreement, which includes the development of a conceptual transportation plan.
FACTS:
Q0 Will monthly progress reports, those SCE is required to provide to plaintiffs, be publicly available?
SCE Response: Yes. SCE plans to make these reports available through the Community Engagement Panel.
FACT:
I’m sure these SCE reports will be just as helpful and informative as the rest of SCE’s information. – Donna Gilmore
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Continue readingJoin us in prayer and meditation as we lift our consciousness up and over the current movement of nuclear waster into thin Chernobyl cans on the beach at San Onofre.Occurred Saturday February 3rdCenter For Spiritual Living1201 Puerta Del SolSan Clement…
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Join us in prayer and meditation as we lift our consciousness up and over the current movement of nuclear waster into thin Chernobyl cans on the beach at San Onofre.
Occurred Saturday February 3rd
Center For Spiritual Living
1201 Puerta Del Sol
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Join us in prayer and meditation as we lift our consciousness up and over the current movement of nuclear waster into thin Chernobyl cans on the beach at San Onofre.
Occurred Saturday February 3rd
Center For Spiritual Living
1201 Puerta Del Sol
…
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