Event Notification Report for June 28, 2014

OFFSITE NOTIFICATION TO THE STATE OF MINNESOTA FOR A FISH KILL

"At 1215 PM CDT on June 28, 2014, Xcel Energy notified the Minnesota State Duty Officer that approximately 1000 dead fish of assorted species were discovered in the site's discharge canal. The fish perished due to rising temperatures in the discharge canal caused by an orderly shutdown of Cooling Towers as directed by procedure for response to flooding of the Mississippi River. The discharge canal is a body of water with a barrier from the Mississippi River. The Mississippi River temperature across the site has only risen 0.9F which is well within the permit limit of the maximum of 5F.

"There is no impact to the availability of safety systems or safety system performance. This condition has no impact to public health and safety.

"This event is reportable per 10 CFR 50.72(b)(2)(xi), an event related to protection of the environment for which a notification to other government agencies has been made.

"The licensee has notified the NRC Resident Inspector [and local authorities]."

UNUSUAL EVENT - EARTHQUAKE FELT ON SITE

"The following event description is based on information currently available. If through subsequent reviews of this event, additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73.

"An event classification of Unusual Event (HU1.1) was declared at 22:17 MST for the Palo Verde Nuclear Generating Station because of an earthquake that originated 50km NW of Lordsburg, New Mexico at 21:59 MST. Per the USGS website, the magnitude of the earthquake was 5.2 on the Richter scale. Initial walkdowns of plant equipment and review of plant parameters have found no unusual conditions or damage to plant equipment. No abnormalities caused by the seismic event were observed. No reactor protection system (RPS) or engineered safety feature (ESF) actuations occurred and none were required. Palo Verde Unit 1, 2, and 3 are at 100 percent power with all offsite power supplies available.

"Initial analysis of the Seismic Monitoring Instrumentation System indicated a seismic event, below the magnitude of the 0.10g spectra Operating Basis Earthquake (OBE) and the 0.20g spectra Safe Shutdown Earthquake (SSE).

"The NRC Resident Inspector has been notified of seismic activity and this ENS call."

This event time is 2206 MST because this is the time the control room was notified by plant Operators that an earthquake had been felt on site.

Notified DHS, FEMA, and NICC. FEMA NWC and Nuclear SSA were notified via email.

* * * UPDATE AT 0424 EDT ON 6/29/2014 FROM DENNIS MARTIN TO MARK ABRAMOVITZ * * *

"Emergency classification termination was declared at 6/29/14 01:12 MST. All required power block inspections were completed with no deficiencies noted. No other conditions require an emergency classification, there are no challenges to fission product barriers or radiological release, and plant conditions offer no possibility of adverse impact on health and safety of the public."

The licensee notified the NRC Resident Inspector, state and local governments.

Notified the R4DO (Allen), NRR (Hiland), IRD (Gott), DHS, FEMA, and NICC. FEMA NWC and Nuclear SSA were notified via email.

AGREEMENT STATE REPORT - FIXED INDUSTRIAL GAUGES DAMAGED DURING FIRE

The following was received from the State of Ohio via email:

"On 6/29/14 at 1330 EDT, ODH [Ohio Department of Health] received a call that there was a fire at an oil well location in Hannibal, Ohio, Monroe County. A hydraulic line on a piece of drilling equipment failed, spilling hydraulic fluid onto a hot engine, igniting the fluid. The fluid continued to rapidly leak, which caused the fire to spread. When the fire department arrived on scene, the well pad was reported to be fully engulfed in flames. The drilling company has reportedly lost 20 vehicles in the fire. There were three density gauges on site, two (2) of which were mounted on equipment and one was mounted on the well. There were no detections of radiation at that time.

"On 6/30/14 two ODH inspectors were dispatched to the site to verify that the gauges were secure and had not suffered damage from the fire. Upon arrival the ODH inspectors were not allowed to go onto the drilling pad area because it is still being cleared of potentially explosive hazardous chemicals and unexploded ordinance (used in fracking process). The inspectors attended a meeting regarding status of the site and were briefed by representatives from Halliburton (the licensee). The gauges involved were two (2) Model 100-SD, containing 120 mCi of Cs-137 each, and one (1) Model 55-SD containing 66 mCi of Cs-137.

"Halliburton was able to conduct an initial visual inspection and survey of the gauges. They stated that there did not appear to be any significant visible damage and the devices appeared to be intact. They recorded readings of 0.5 mR/hr on contact for the Model 100-SD gauges, and 0.3 mR/hr on contact on for the Model 55-SD gauge. Wipe tests were taken by the licensee to check for leakage and the field survey indicated no contamination. The wipes were sent to a laboratory for further analysis. Licensee personnel will put up warning signs and barriers around the gauges once the site is safe for other than emergency operations. It is expected to be several days before the site is determined to be safe enough for any movement or removal of the devices.

"On 7/2/14 the licensee was granted permission from the site manager to remove the gauges. All three gauges were removed without incident, and appeared to be intact (although scorched on the exterior from the fire). There were no incidents during the removal and no radiation readings recorded above those originally reported. The three gauges were placed in over packs, with proper labels and shipping papers, and were sent to the Halliburton headquarters in Texas for further evaluation."

Ohio Reference Number: ODH 2014-017.