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Contingencies: (Details) - GSWC $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 USD ($) customer | Nov. 04, 2014 USD ($)
Environmental Clean-Up and Remediation |  |
Contingencies |  |
Amount spent in clean-up and remediation activities | $ 4.8 |
Amount paid by the State of California Underground Storage Tank Fund for clean-up and remediation of plant facilities | 1.5 |
Accrued liability for the estimated additional cost to complete the clean-up at the site | $ 1.4 |
City of Claremont | Condemnation of Properties |  |
Contingencies |  |
Condemnation |  | $ 135.0
Number of customers served through water systems | customer | 11,000 |
Ojai FLOW | Condemnation of Properties |  |
Contingencies |  |
Number of customers served through water systems | customer | 3,000 |
City of Artesia | Condemnation of Properties |  |
Contingencies |  |
Number of customers served through water systems | customer | 3,300 |
Independent Transmission and Distribution System | City of Claremont | Condemnation of Properties |  |
Contingencies |  |
Public Utilities, Property, Plant and Equipment, Net | $ 49.8 |

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