Rate and Regulatory Matters	9 Months Ended
Sep. 30, 2017
Regulated Operations [Abstract]
Rate and Regulatory Matters	Note 2 – Rate and Regulatory Matters Middlesex – On October 10, 2017, Middlesex filed a petition with the New Jersey Board of Public Utilities (NJBPU) seeking permission to increase base water rates by approximately $15.3 million per year. The request was necessitated by capital infrastructure investments Middlesex has made, or has committed to make, to drinking water infrastructure since the last filing in New Jersey in 2015 as well as increased operations and maintenance costs. We cannot predict when and whether the NJBPU will ultimately approve, deny, or reduce the amount of the request. Under New Jersey statute, the NJPBU must render a decision within nine months of filing a petition. On October 20, 2017, the NJBPU approved Middlesex’s petition to reset its Purchased Water Adjustment Clause (PWAC) tariff rate to recover additional annual costs of $1.2 million for the purchase of untreated water from the New Jersey Water Supply Authority. A PWAC is a rate mechanism that allows for the recovery of increased purchased water costs between base rate case filings. The PWAC is reset to zero once those increased costs are included in base rates. The reset PWAC tariff rate became effective on November 1, 2017. Tidewater - Effective July 1, 2017, Tidewater reset its Delaware Public Service Commission-approved Distribution System Improvement Charge (DSIC) rate, which is expected to generate $0.4 million of annual revenues. A DSIC is a rate-mechanism that allows water utilities to recover investments of, and generate a return on, qualifying capital improvements to their water distribution system made between base rate proceedings.

Rate and Regulatory Matters

9 Months Ended

Sep. 30, 2017

Note 2 – Rate and Regulatory Matters

Middlesex – On October 10, 2017, Middlesex filed a petition with the New Jersey Board of Public Utilities (NJBPU) seeking permission to increase base water rates by approximately $15.3 million per year. The request was necessitated by capital infrastructure investments Middlesex has made, or has committed to make, to drinking water infrastructure since the last filing in New Jersey in 2015 as well as increased operations and maintenance costs. We cannot predict when and whether the NJBPU will ultimately approve, deny, or reduce the amount of the request. Under New Jersey statute, the NJPBU must render a decision within nine months of filing a petition.

On October 20, 2017, the NJBPU approved Middlesex’s petition to reset its Purchased Water Adjustment Clause (PWAC) tariff rate to recover additional annual costs of $1.2 million for the purchase of untreated water from the New Jersey Water Supply Authority. A PWAC is a rate mechanism that allows for the recovery of increased purchased water costs between base rate case filings. The PWAC is reset to zero once those increased costs are included in base rates. The reset PWAC tariff rate became effective on November 1, 2017.

Tidewater - Effective July 1, 2017, Tidewater reset its Delaware Public Service Commission-approved Distribution System Improvement Charge (DSIC) rate, which is expected to generate $0.4 million of annual revenues. A DSIC is a rate-mechanism that allows water utilities to recover investments of, and generate a return on, qualifying capital improvements to their water distribution system made between base rate proceedings.