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REVENUE RECOGNITION (Tables) | 9 Months Ended
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Sep. 30, 2021
REVENUE RECOGNITION [Abstract] |
Disaggregation of Revenues | The following table shows the Company’s revenues disaggregated by service type; all revenues are generated within a similar geographical location:
(in thousands) |  | Three months ended September 30, 2021 |  |  | Three months ended September 30, 2020 |  |  | Nine months ended September 30, 2021 |  |  | Nine months ended September 30, 2020 |
Tariff Revenue |  |  |  |  |  |  |  |  |  |  |  |
Consumption charges |  | $ | 13,595 |  |  | $ | 13,875 |  |  | $ | 36,672 |  |  | $ | 36,217 |
Fixed fees |  |  | 7,112 |  |  |  | 6,797 |  |  |  | 20,983 |  |  |  | 20,192 |
Service charges |  |  | 130 |  |  |  | 21 |  |  |  | 450 |  |  |  | 183 |
DSIC |  |  | 1,387 |  |  |  | 1,392 |  |  |  | 3,876 |  |  |  | 3,810 |
Industrial wastewater services |  |  | 497 |  |  |  | 851 |  |  |  | 118 |  |  |  | 866 |
Total Tariff Revenue |  | $ | 22,721 |  |  | $ | 22,936 |  |  | $ | 62,099 |  |  | $ | 61,268 |
Non-Tariff Revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service line protection plans |  | $ | 1,181 |  |  | $ | 1,099 |  |  | $ | 3,411 |  |  | $ | 3,267 |
Contract operations |  |  | 210 |  |  |  | 207 |  |  |  | 658 |  |  |  | 636 |
Design and installation |  |  | 139 |  |  |  | — |  |  |  | 351 |  |  |  | — |
Inspection fees |  |  | 108 |  |  |  | 63 |  |  |  | 244 |  |  |  | 173 |
Total Non-Tariff Revenue |  | $ | 1,638 |  |  | $ | 1,369 |  |  | $ | 4,664 |  |  | $ | 4,076 |
Other Operating Revenue not in scope of ASC 606 |  | $ | 628 |  |  | $ | 432 |  |  | $ | 1,521 |  |  | $ | 1,046 |
Total Operating Revenue |  | $ | 24,987 |  |  | $ | 24,737 |  |  | $ | 68,284 |  |  | $ | 66,390 |
Contract Assets and Contract Liabilities | Our contract assets and liabilities consist of the following:
(in thousands) |  | September 30, 2021 |  |  | December 31, 2020 |
Contract Assets – Tariff |  | $ | 2,627 |  |  | $ | 2,175 |
Deferred Revenue |  |  |  |  |  |  |  |
Deferred Revenue – Tariff |  | $ | 1,120 |  |  | $ | 1,150 |
Deferred Revenue – Non-Tariff |  |  | 341 |  |  |  | 300 |
Total Deferred Revenue |  | $ | 1,461 |  |  | $ | 1,450 |

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