given the changing nature of the covid-19 outbreak and the responses to curb its spread , management can not predict the full impact of the covid-19 pandemic on the company 's results of operations . the ultimate extent of the effects of the covid-19 pandemic on the company is highly uncertain and will depend on future developments , and such effects could exist for an extended period of time even after the pandemic ends . water division artesian water , artesian water maryland and artesian water pennsylvania provide water service to residential , commercial , industrial , governmental , municipal and utility customers . increases in the number of customers contribute to increases , or help to offset any intermittent decreases , in our operating revenue . as of december 31 , 2020 , we had approximately 90,300 metered water customers in delaware , an increase of approximately 2,500 compared to december 31 , 2019. the number of metered water customers in maryland totaled approximately 2,500 as of december 31 , 2020 , a slight increase compared to december 31 , 2019. the number of metered water customers in pennsylvania remained consistent compared to december 31 , 2019. for the year ended december 31 , 2020 , approximately 8.2 billion gallons of water were distributed in our delaware systems and approximately 135.0 million gallons of water were distributed in our maryland systems . 18 wastewater division artesian wastewater owns wastewater collection and treatment infrastructure and began providing regulated wastewater services to customers in delaware in july 2005. artesian wastewater maryland was incorporated on june 3 , 2008 and is able to provide regulated wastewater services to customers in maryland . it is not currently providing these services in maryland . our residential and commercial wastewater customers are billed a flat monthly fee , which contributes to providing a revenue stream unaffected by weather . the number of delaware wastewater customers totaled approximately 2,800 as of december 31 , 2020 , an increase of approximately 400 , or 14.9 % , compared to december 31 , 2019. in addition , artesian wastewater entered into wastewater services agreements with a large industrial customer . the wastewater services agreements with this customer are discussed further in the “ strategic direction ” section below . non-regulated division artesian utility provides contract water and wastewater operation services to private , municipal and governmental institutions . artesian utility also offers three protection plans to customers , the wslp plan , the sslp plan , and the islp plan . slp plan customers are billed a flat monthly or quarterly rate , which contributes to providing a revenue stream unaffected by weather . there has been consistent customer growth over the years . as of december 31 , 2020 , approximately 20,900 , or 24.3 % , of our eligible water customers enrolled in the wslp plan , approximately 16,100 , or 18.8 % , of our eligible customers enrolled in the sslp plan , and approximately 7,600 , or 8.9 % , of our eligible customers enrolled in the islp plan . approximately 1,900 non-utility customers enrolled in one of our three protection plans . strategic direction and recent developments our strategy is to increase customer growth , revenues , earnings and dividends by expanding our water , wastewater and slp plan services across the delmarva peninsula . we remain focused on providing superior service to our customers and continuously seek ways to improve our efficiency and performance . our strategy has included a focus on building strategic partnerships with county governments , municipalities and developers . by providing water and wastewater services , we believe we are positioned as the primary resource for developers and communities throughout the delmarva peninsula seeking to fill both needs simultaneously . we believe we have a proven ability to acquire and integrate high growth , reputable entities , through which we have captured additional service territories that will serve as a base for future revenue . we believe this experience presents a strong platform for further expansion and that our success to date also produces positive relationships and credibility with regulators , municipalities , developers and customers in both existing and prospective service areas . in our regulated water division , our strategy is to focus on a wide spectrum of activities , which include strategic acquisitions of existing systems , expanding certificated service area , identifying new and dependable sources of supply , developing the wells , treatment plants and delivery systems to supply water to customers and educating customers on the wise use of water . our strategy includes focused efforts to expand through strategic acquisitions and in new regions added to our delaware service territory over the last 10 years . we plan to expand our regulated water service area in the cecil county designated growth corridor and to expand our business through the design , construction , operation , management and acquisition of additional water systems . the expansion of our exclusive franchise areas elsewhere in maryland and the award of contracts will similarly enhance our operations within the state . our ability to develop partnerships with various county governments , municipalities and developers has provided a number of opportunities . in the last three years , we completed seven acquisitions including asset purchase agreements with municipal and developer/homeowner association operated systems . some recent acquisitions are noted below . on august 3 , 2020 , artesian water completed the purchase of substantially all of the water system operating assets from the city of delaware city , a delaware municipality , or delaware city , including the right to provide water service to delaware city 's existing customers . the total purchase price was $ 2.1 million . artesian water had previously acquired the water assets of an area annexed by delaware city , known as fort dupont , which was earmarked for growth and expansion of delaware city . story_separator_special_tag allowance for funds used during construction , or afudc , decreased $ 0.2 million , as a result of lower long-term construction activity subject to afudc for the twelve months ended december 31 , 2020 compared to the same period in 2019. interest charges interest expense increased $ 0.6 million , primarily due to an increase in long-term debt interest related to the series v first mortgage bond issued on december 17 , 2019. this increase is partially offset by a decrease in short-term debt interest , primarily related to lower interest rates and short-term borrowing levels in 2020. customer deposit interest decreased $ 0.1 million from the 2019 customer refund amount held in reserve related to the tax cuts and jobs act . net income our net income applicable to common stock increased $ 1.9 million . operating revenues increased $ 4.5 million and other income , net increased $ 0.1 million , while operating expenses increased $ 2.2 million and interest expense increased $ 0.6 million . part i , item 7 . “ management 's discussion and analysis of financial condition and results of operations ” in our 2019 annual report on form 10-k includes a comparative discussion of the years ended december 31 , 2019 and 2018 and is incorporated herein by reference . 24 story_separator_special_tag term debt at december 31 , 2020 , artesian resources had a $ 40 million line of credit with citizens bank , or citizens , which is available to all subsidiaries of artesian resources . as of december 31 , 2020 , there was $ 31.2 million of available funds under this line of credit . the interest rate for borrowings under this line is the london interbank offered rate , or libor , plus 1.25 % . this is a demand line of credit and therefore the financial institution may demand payment for any outstanding amounts at any time . the term of this line of credit expires on the earlier of may 31 , 2021 or any date on which citizens demands payment . the company expects to renew this line of credit . at december 31 , 2020 , artesian water had a $ 20 million line of credit with cobank , acb , or cobank , that allows for the financing of operations for artesian water , with up to $ 10 million of this line available for the operations of artesian water maryland . as of december 31 , 2020 , there was $ 2.0 million of available funds under this line of credit . the interest rate for borrowings under this line allows the company to select either libor plus 1.50 % or a weekly variable rate established by cobank ; the company has historically used the weekly variable interest rate . the patronage refunds earned by artesian water for 2020 and 2019 were $ 1.0 million and $ 0.9 million respectively . the term of this line of credit expires on july 30 , 2021. artesian water expects to renew this line of credit . line of credit commitments commitment due by period in thousands less than 1 year 1-3 years 4-5 years over 5 years lines of credit $ 26,813 $ - $ - $ - replace_table_token_5_th artesian 's long-term debt agreements and revolving lines of credit contain customary affirmative and negative covenants that are binding on us ( which are in some cases subject to certain exceptions ) , including , but not limited to , restrictions on our ability to make certain loans and investments , guarantee certain obligations , enter into , or undertake , certain mergers , consolidations or acquisitions , transfer certain assets or change our business . in addition , we are required to abide by certain financial covenants and ratios . as of december 31 , 2020 , we were in compliance with these covenants . long-term debt obligations reflect the maturities of certain series of our first mortgage bonds , which we intend to refinance when due if not refinanced earlier . one first mortgage bond is subject to redemption in a principal amount equal to $ 150,000 plus interest per calendar quarter . the state revolving fund loan obligation has an amortizing mortgage payment payable over a 20-year period . the promissory note obligation has an amortizing payment payable over a 20-year period . the first mortgage bonds , the state revolving fund loan and the promissory note have certain financial covenant provisions , the violation of which could result in default and require the obligation to be immediately repaid , including all interest . we have not experienced conditions that would result in our default under these agreements . on december 17 , 2019 , artesian water company entered into a bond purchase agreement relating to the issue and sale by artesian water to cobank of a $ 30 million principal amount first mortgage bond , series v , or the series v bond , due october 31 , 2049 , or the maturity date . the series v bond was issued pursuant to artesian water 's indenture of mortgage dated as of july 1 , 1961 , as amended and supplemented by supplemental indentures , including the twenty-fourth supplemental indenture dated as of december 17 , 2019 from artesian water to wilmington trust company , as trustee . the indenture is a first mortgage lien against substantially all of artesian water 's utility plant . the proceeds from the sale of the series v bond were used to pay down outstanding lines of credit of the company and a loan payable to artesian resources . the depsc approved the issuance of the series v bond on november 14 , 2019 . 26 the series v bond carries an annual interest rate of 4.42 % through but excluding the maturity date . interest is payable on january 30th , april 30th , july 30th and october 30th in each year and on

liquidity and capital resources overview the company 's primary sources of liquidity for the year ended december 31 , 2020 were $ 20.3 million of cash provided by operating activities , $ 9.3 million in net contributions and advances from developers , $ 19.3 million from lines of credit borrowings and $ 1.5 million in net proceeds from the issuance of common stock . these funds were used to invest $ 40.0 million in capital expenditures and to pay dividends of approximately $ 9.4 million . we depend on the availability of capital for expansion , construction and maintenance . we rely on our sources of liquidity for investments in our utility plant and to meet our various payment obligations . we expect that our net investments in utility plant in 2021 will be approximately $ 48.1 million . our total obligations related to interest and principal payments on indebtedness , rental payments and water service interconnection agreements for 2021 are anticipated to be approximately $ 12.6 million . we expect to fund our activities for the next year using our available cash balances , bank credit lines , projected cash generated from operations and capital market financings . we believe that internally generated funds along with existing credit facilities will be adequate to provide sufficient working capital to maintain normal operations and to meet our financing requirements . however , because part of our business strategy is to expand through strategic acquisitions , we may seek additional debt financing or issue additional equity securities to finance future acquisitions or for other purposes . there is no assurance that we will be able to secure funding on terms acceptable to us , or at all . operating activities our primary source of liquidity for the year ended december 31 , 2020 was $ 20.3 million provided by cash flow from operating activities . cash flow from operating activities is primarily provided by our utility operations , and is impacted by the timeliness and adequacy of rate increases and changes in water consumption as a result of year-to-year variations in weather conditions , particularly during the summer .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources overview the company 's primary sources of liquidity for the year ended december 31 , 2020 were $ 20.3 million of cash provided by operating activities , $ 9.3 million in net contributions and advances from developers , $ 19.3 million from lines of credit borrowings and $ 1.5 million in net proceeds from the issuance of common stock . these funds were used to invest $ 40.0 million in capital expenditures and to pay dividends of approximately $ 9.4 million . we depend on the availability of capital for expansion , construction and maintenance . we rely on our sources of liquidity for investments in our utility plant and to meet our various payment obligations . we expect that our net investments in utility plant in 2021 will be approximately $ 48.1 million . our total obligations related to interest and principal payments on indebtedness , rental payments and water service interconnection agreements for 2021 are anticipated to be approximately $ 12.6 million . we expect to fund our activities for the next year using our available cash balances , bank credit lines , projected cash generated from operations and capital market financings . we believe that internally generated funds along with existing credit facilities will be adequate to provide sufficient working capital to maintain normal operations and to meet our financing requirements . however , because part of our business strategy is to expand through strategic acquisitions , we may seek additional debt financing or issue additional equity securities to finance future acquisitions or for other purposes . there is no assurance that we will be able to secure funding on terms acceptable to us , or at all . operating activities our primary source of liquidity for the year ended december 31 , 2020 was $ 20.3 million provided by cash flow from operating activities . cash flow from operating activities is primarily provided by our utility operations , and is impacted by the timeliness and adequacy of rate increases and changes in water consumption as a result of year-to-year variations in weather conditions , particularly during the summer .
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 Suspicious Activity Report : given the changing nature of the covid-19 outbreak and the responses to curb its spread , management can not predict the full impact of the covid-19 pandemic on the company 's results of operations . the ultimate extent of the effects of the covid-19 pandemic on the company is highly uncertain and will depend on future developments , and such effects could exist for an extended period of time even after the pandemic ends . water division artesian water , artesian water maryland and artesian water pennsylvania provide water service to residential , commercial , industrial , governmental , municipal and utility customers . increases in the number of customers contribute to increases , or help to offset any intermittent decreases , in our operating revenue . as of december 31 , 2020 , we had approximately 90,300 metered water customers in delaware , an increase of approximately 2,500 compared to december 31 , 2019. the number of metered water customers in maryland totaled approximately 2,500 as of december 31 , 2020 , a slight increase compared to december 31 , 2019. the number of metered water customers in pennsylvania remained consistent compared to december 31 , 2019. for the year ended december 31 , 2020 , approximately 8.2 billion gallons of water were distributed in our delaware systems and approximately 135.0 million gallons of water were distributed in our maryland systems . 18 wastewater division artesian wastewater owns wastewater collection and treatment infrastructure and began providing regulated wastewater services to customers in delaware in july 2005. artesian wastewater maryland was incorporated on june 3 , 2008 and is able to provide regulated wastewater services to customers in maryland . it is not currently providing these services in maryland . our residential and commercial wastewater customers are billed a flat monthly fee , which contributes to providing a revenue stream unaffected by weather . the number of delaware wastewater customers totaled approximately 2,800 as of december 31 , 2020 , an increase of approximately 400 , or 14.9 % , compared to december 31 , 2019. in addition , artesian wastewater entered into wastewater services agreements with a large industrial customer . the wastewater services agreements with this customer are discussed further in the “ strategic direction ” section below . non-regulated division artesian utility provides contract water and wastewater operation services to private , municipal and governmental institutions . artesian utility also offers three protection plans to customers , the wslp plan , the sslp plan , and the islp plan . slp plan customers are billed a flat monthly or quarterly rate , which contributes to providing a revenue stream unaffected by weather . there has been consistent customer growth over the years . as of december 31 , 2020 , approximately 20,900 , or 24.3 % , of our eligible water customers enrolled in the wslp plan , approximately 16,100 , or 18.8 % , of our eligible customers enrolled in the sslp plan , and approximately 7,600 , or 8.9 % , of our eligible customers enrolled in the islp plan . approximately 1,900 non-utility customers enrolled in one of our three protection plans . strategic direction and recent developments our strategy is to increase customer growth , revenues , earnings and dividends by expanding our water , wastewater and slp plan services across the delmarva peninsula . we remain focused on providing superior service to our customers and continuously seek ways to improve our efficiency and performance . our strategy has included a focus on building strategic partnerships with county governments , municipalities and developers . by providing water and wastewater services , we believe we are positioned as the primary resource for developers and communities throughout the delmarva peninsula seeking to fill both needs simultaneously . we believe we have a proven ability to acquire and integrate high growth , reputable entities , through which we have captured additional service territories that will serve as a base for future revenue . we believe this experience presents a strong platform for further expansion and that our success to date also produces positive relationships and credibility with regulators , municipalities , developers and customers in both existing and prospective service areas . in our regulated water division , our strategy is to focus on a wide spectrum of activities , which include strategic acquisitions of existing systems , expanding certificated service area , identifying new and dependable sources of supply , developing the wells , treatment plants and delivery systems to supply water to customers and educating customers on the wise use of water . our strategy includes focused efforts to expand through strategic acquisitions and in new regions added to our delaware service territory over the last 10 years . we plan to expand our regulated water service area in the cecil county designated growth corridor and to expand our business through the design , construction , operation , management and acquisition of additional water systems . the expansion of our exclusive franchise areas elsewhere in maryland and the award of contracts will similarly enhance our operations within the state . our ability to develop partnerships with various county governments , municipalities and developers has provided a number of opportunities . in the last three years , we completed seven acquisitions including asset purchase agreements with municipal and developer/homeowner association operated systems . some recent acquisitions are noted below . on august 3 , 2020 , artesian water completed the purchase of substantially all of the water system operating assets from the city of delaware city , a delaware municipality , or delaware city , including the right to provide water service to delaware city 's existing customers . the total purchase price was $ 2.1 million . artesian water had previously acquired the water assets of an area annexed by delaware city , known as fort dupont , which was earmarked for growth and expansion of delaware city . story_separator_special_tag allowance for funds used during construction , or afudc , decreased $ 0.2 million , as a result of lower long-term construction activity subject to afudc for the twelve months ended december 31 , 2020 compared to the same period in 2019. interest charges interest expense increased $ 0.6 million , primarily due to an increase in long-term debt interest related to the series v first mortgage bond issued on december 17 , 2019. this increase is partially offset by a decrease in short-term debt interest , primarily related to lower interest rates and short-term borrowing levels in 2020. customer deposit interest decreased $ 0.1 million from the 2019 customer refund amount held in reserve related to the tax cuts and jobs act . net income our net income applicable to common stock increased $ 1.9 million . operating revenues increased $ 4.5 million and other income , net increased $ 0.1 million , while operating expenses increased $ 2.2 million and interest expense increased $ 0.6 million . part i , item 7 . “ management 's discussion and analysis of financial condition and results of operations ” in our 2019 annual report on form 10-k includes a comparative discussion of the years ended december 31 , 2019 and 2018 and is incorporated herein by reference . 24 story_separator_special_tag term debt at december 31 , 2020 , artesian resources had a $ 40 million line of credit with citizens bank , or citizens , which is available to all subsidiaries of artesian resources . as of december 31 , 2020 , there was $ 31.2 million of available funds under this line of credit . the interest rate for borrowings under this line is the london interbank offered rate , or libor , plus 1.25 % . this is a demand line of credit and therefore the financial institution may demand payment for any outstanding amounts at any time . the term of this line of credit expires on the earlier of may 31 , 2021 or any date on which citizens demands payment . the company expects to renew this line of credit . at december 31 , 2020 , artesian water had a $ 20 million line of credit with cobank , acb , or cobank , that allows for the financing of operations for artesian water , with up to $ 10 million of this line available for the operations of artesian water maryland . as of december 31 , 2020 , there was $ 2.0 million of available funds under this line of credit . the interest rate for borrowings under this line allows the company to select either libor plus 1.50 % or a weekly variable rate established by cobank ; the company has historically used the weekly variable interest rate . the patronage refunds earned by artesian water for 2020 and 2019 were $ 1.0 million and $ 0.9 million respectively . the term of this line of credit expires on july 30 , 2021. artesian water expects to renew this line of credit . line of credit commitments commitment due by period in thousands less than 1 year 1-3 years 4-5 years over 5 years lines of credit $ 26,813 $ - $ - $ - replace_table_token_5_th artesian 's long-term debt agreements and revolving lines of credit contain customary affirmative and negative covenants that are binding on us ( which are in some cases subject to certain exceptions ) , including , but not limited to , restrictions on our ability to make certain loans and investments , guarantee certain obligations , enter into , or undertake , certain mergers , consolidations or acquisitions , transfer certain assets or change our business . in addition , we are required to abide by certain financial covenants and ratios . as of december 31 , 2020 , we were in compliance with these covenants . long-term debt obligations reflect the maturities of certain series of our first mortgage bonds , which we intend to refinance when due if not refinanced earlier . one first mortgage bond is subject to redemption in a principal amount equal to $ 150,000 plus interest per calendar quarter . the state revolving fund loan obligation has an amortizing mortgage payment payable over a 20-year period . the promissory note obligation has an amortizing payment payable over a 20-year period . the first mortgage bonds , the state revolving fund loan and the promissory note have certain financial covenant provisions , the violation of which could result in default and require the obligation to be immediately repaid , including all interest . we have not experienced conditions that would result in our default under these agreements . on december 17 , 2019 , artesian water company entered into a bond purchase agreement relating to the issue and sale by artesian water to cobank of a $ 30 million principal amount first mortgage bond , series v , or the series v bond , due october 31 , 2049 , or the maturity date . the series v bond was issued pursuant to artesian water 's indenture of mortgage dated as of july 1 , 1961 , as amended and supplemented by supplemental indentures , including the twenty-fourth supplemental indenture dated as of december 17 , 2019 from artesian water to wilmington trust company , as trustee . the indenture is a first mortgage lien against substantially all of artesian water 's utility plant . the proceeds from the sale of the series v bond were used to pay down outstanding lines of credit of the company and a loan payable to artesian resources . the depsc approved the issuance of the series v bond on november 14 , 2019 . 26 the series v bond carries an annual interest rate of 4.42 % through but excluding the maturity date . interest is payable on january 30th , april 30th , july 30th and october 30th in each year and on

