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Property, Plant and Equipment
3 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
Property, plant and equipment, net consisted of the following as of March 31, 2021 and December 31, 2020 (in thousands):

March 31, 2021December 31, 2020
Property, plant and equipment, at cost:
Water service-related assets (1)
$100,399 $97,699 
Furniture, fixtures and equipment
6,122 6,125 
Other
598 598 
Property, plant and equipment at cost107,119 104,422 
Less: accumulated depreciation(28,724)(25,155)
Property, plant and equipment, net$78,395 $79,267 
(1)    Water service-related assets reflect assets related to water sourcing and water treatment projects.

Depreciation expense was $3.6 million and $3.2 million for the three months ended March 31, 2021 and 2020, respectively.