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Property, Plant and Equipment
 9 Months Ended
Sep. 30, 2019
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
Property, plant and equipment, net consisted of the following as of September 30, 2019 and December 31, 2018 (in thousands):
September 30, 2019December 31, 2018
Property, plant and equipment:
Water service-related assets (1)
$88,625  $62,919  
Furniture, fixtures and equipment
5,855  4,297  
Other
598  598  
Property, plant and equipment at cost95,078  67,814  
Less: accumulated depreciation(8,006) (3,012) 
Property, plant and equipment, net$87,072  $64,802  

(1) Water service-related assets reflect assets related to water sourcing and water treatment projects.

Depreciation expense was $2.6 million and $0.7 million for the three months ended September 30, 2019 and 2018, respectively. Depreciation expense was $5.2 million and $1.5 million for the nine months ended September 30, 2019 and 2018, respectively.