NOTE 11 COMMITMENTS AND CONTINGENCIES Leases In October 1997, Artesian Water entered into a 33 year operating lease for a parcel of land with improvements located in South Bethany, a municipality in Sussex County, Delaware. The annual lease payments increase each year by the most recent increase in the Consumer Price Index for Urban Workers, CPI-U, as published by the U.S. Department of Labor, Bureau of Labor Statistics. At each eleventh year of the lease term, the annual lease payment shall be determined based on the fair market value of the parcel of land. Rental payments for 2018, 2017 and 2016 were $16,300, $16,300, and $16,100, respectively. The future minimum rental payment as disclosed in the following table is calculated using CPI-U as of August 31, 2018 as well as any adjustments for appraisals conducted to determine the fair market value of the parcel of land. During 2003, Artesian Resources entered into a 40 year easement agreement to acquire an easement to access, operate, maintain, repair, improve, replace and connect Artesians water system to a well, including a parcel of land around the well. Easement payments for 2018, 2017 and 2016 were $38,000, $37,000 and $36,000, respectively. Artesian Wastewater entered into a perpetual agreement for the use of approximately 460 acres of land in Sussex County, Delaware for wastewater disposal. Beginning January 2007, Artesian Wastewater is required to pay a minimum of $40,000 per year for the use of this land. Beginning January 2012, and on each anniversary thereof until January 2027, the fee shall be adjusted upwards by an adjustment factor of two percent. In November 2016, this agreement was amended to remove the 2% increase. Once disposal operations begin, the monthly fee will be based on the volume of wastewater disposed on the properties charged at rate per one thousand gallons of wastewater, providing for a minimum monthly payment. Payments for 2018, 2017 and 2016 were $44,000 each year. The agreement can be terminated by giving 180 day notice prior to the termination date. Future minimum annual rental payments related to non-cancellable operating leases for the years subsequent to 2018 are as follows: In thousands 2019 $ 78 2020 58 2021 59 2022 61 2023 62 2024 through 2043 1,290 $ 1,608 Interconnections Artesian Water has one water service interconnection agreement with a neighboring utility, Chester Water Authority, which requires minimum annual purchases. Rates charged under this agreement are subject to change. The minimum purchase requirement is 1,095 million gallons annually, calculated as 3 million gallons per day times the number of calendar days in a year. The agreement extends through the year 2021. In January 2018, Artesian Water Maryland signed an interconnection agreement with the Town of North East that has a take or pay clause requiring us to purchase a minimum of 35,000 gallons per day that shall commence on the first day of the month following the date on which the interconnection is completed . The interconnection was completed in the first quarter of 2019. The agreement extends through February 2024. The minimum annual purchase commitments for all interconnection agreements for 2019 through 2024, calculated at the noticed rates, are as follows: In thousands 2019 3,872 2020 3,892 2021 3,881 2022 57 2023 57 2024 9 Total $ 11,768 Expenses for purchased water were $4.2 million, $4.4 million and $4.0 million for 2018, 2017 and 2016, respectively. Other Commitments In 2013, Artesian Water entere d into a 3-year agreement with Worldwide Industries Corporation to clean and paint tanks in 2014, 2015 and 2016. Pursuant to the 3-year agreement, the expenditure committed in total for the years 2014 through 2016 was $804,000. In 2014, the 3-year agreement with Worldwide Industries Corporation was amended to include an additional 113,000 in expenditures related to cleaning and painting tanks. In March 2017, Artesian Water entered into a 3-year agreement with Worldwide Industries Corporation to clean and paint tanks in 2017, 2018 and 2019. Pursuant to the 3-year agreement, the expenditure committed in total for the years 2017 through 2019 is $1.3 million. T ank painting expense for 2018, 2017 and 2016 was $658,000, $695,000, and $528,000, respectively. Budgeted mandatory utility plant expenditures, due to planned governmental highway projects, which require the relocation of Artesian Water's water service mains, expected to be incurred in 2019 through 2021 are as follows: In thousands 2019 $ 3,000 2020 2,270 2021 1,270 $ 6,540 The exact timing and extent of these relocation projects is controlled primarily by the Delaware Department of Transportation.