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GEOGRAPHIC CONCENTRATION OF CUSTOMERS
12 Months Ended
Dec. 31, 2022
GEOGRAPHIC CONCENTRATION OF CUSTOMERS [Abstract]  
GEOGRAPHIC CONCENTRATION OF CUSTOMERS
NOTE 12

GEOGRAPHIC CONCENTRATION OF CUSTOMERS

Artesian Water, Artesian Water Maryland and Artesian Water Pennsylvania provide regulated water utility service to customers within their established service territory in all three counties of Delaware and in portions of Maryland and Pennsylvania, pursuant to rates filed with and approved by the DEPSC, the MDPSC and the PAPUC. As of December 31, 2022, Artesian Water was serving approximately 94,600 customers, Artesian Water Maryland was serving approximately 2,600 customers and Artesian Water Pennsylvania was serving approximately 40 customers.

Artesian Wastewater and TESI provide regulated wastewater utility service to customers within their established service territory in Sussex County, Delaware pursuant to rates filed with and approved by the DEPSC.  The number of wastewater customers served more than doubled following the acquisition of TESI in January 2022.  As of December 31, 2022, Artesian Wastewater and TESI were serving approximately 7,500 customers combined including one large industrial customer.