2. Outline of the Tokyo Waterworks 第2 東京都水道局の概要 1 Service Area 1 給水区域等

The Bureau of Waterworks supplies water to the 23 wards 水道局は、23 区と多摩地区の 25 市町に給水して and 25 cities and towns in the Tama area. In addition, the いるほか、給水区域に含まれていない未統合3市に対 bureau diverts water to three unincorporated cities in the して分水を行っている。 Tama area that are not included in the service area. このうち多摩地区の5市については、それぞれの地 For the five cities in the Tama area, we commission the 域のお客さまと密接にかかわる水道料金徴収等の業務 affairs related to customer service, such as the collection を、各市に委託している。これについては、今後、順 of water bills, to the cities. We will dissolve these 次解消していく予定である。 commissions sequentially in the future.

Table : Basic Data on Water Supply (As of March 2009 (Heisei 21)) 表 給水区域面積等(平成21年3月現在)

Service area 2 給水区域面積 1222.78km

Population served 給水人口 12,554,106人(people)

Pervasion 普及率 100%

Number of service connections 給水件数 6,831,308件(cases)

Total length of distribution pipes 配水管延長 25,823km

Total capacity of facilities 3 3 施設能力 6,859,500m /日(m /day)

Total distribution amount per year 3 3 年間総配水量 1,581,925×10 m

Maximum distribution amount per day 3 3 一日最大配水量 4,824,000m /日(m /day)

Ave. distribution amount per day 3 3 一日平均配水量 4,334,000m /日(m /day)

(note)Service area, population served, pervasion and number of service connections are numbers as of October 1st, 2008(Heisei 20). (注)給水区域面積、給水人口、普及率及び給水件数については、平成20年10月1日を基準日とした。

7 Figure : Outline of Water Resources and Service Areas by River Systems 図 水道水源と水系別給水区域概要図

Yagisawa Dam

Crest height 131 m Effective storage capacity 175.8 million m3 Water utilization capacity 115.5 million m3 Crest height 158 m Effective storage capacity 85.00 million m3 Water utilization capacity 85.00 million m3

Fujiwara Dam Crest height 95 m Aimata Dam Effective storage capacity 35.89 million m3 Water utilization capacity 31.01 million m3 Crest height 67 m Effective storage capacity 20.0 million m3 Sonohara Dam Naka River Water utilization capacity 20.0 million m3 Akaya River Crest height 140 m Effective storage capacity 50.50 million m3 Kasumigaura Yanba Dam Water utilization capacity 50.50 million m3 Crest height 77 m Water Conveyance Effective storage capacity 14.14 million m3 Katashina River Water utilization capacity 13.22 million m3 Agatsuma River Effective storage capacity 90.0 million m3 Construction period From 1976 to 2015 Water utilization capacity 90.0 million m3 Construction period From 1967 to 2015 Watarase River S51~H27 Tone Weir Kasumigaura kaihatsu Lake Kasumigaura

Shimokubo Dam Effective storage capacity 617.0 million m3 Crest height 129 m Tone River Water utilization capacity 278.0 million m3 Effective storage capacity 120.0 million m3 Watarase Reservoir Water utilization capacity 120.0 million m3 Kanna River Sekiyado Lock Gate Takizawa Dam Musashi Channel Effective storage capacity 26.4 million m3 Nakatsu River Water utilization capacity 26.4 million m3 Hitachigawa Floodgate Effective storage capacity 58.0 million m3 Water utilization capacity 58.0 million m3 Urayama Dam Construction period From 1969 to 2010 Ara River Edo River Crest height 156 m Saitama Goguchi Stage Ⅱ Tone River Estuary Weir S44~H22 Effective storage capacity 56.0 million m3 Water utilization capacity 56.0 million m3 Akigase Intake Weir Tone Chuo Naka Futase Dam Ogouchi Dam Yamaguchi Reservoir Arakawa Reservoir River Kita-chiba Water Conveyance Channel Asaka Channel Misato Crest height 149 m Okutama town 3 Crest height 95 m Effective storage capacity 185.4 million m3 Effective storage capacity 34.35 million m 3 Effective storage capacity 10.6 million m3 Effective storage capacity 21.8 million m3 3 Water utilization capacity 34.35 million m Water utilization capacity 185.4 million m Water utilization capacity 10.2 million m3 Nakagawa River/Edo River Water utilization capacity 20.0 million m3 Oume city Ozaku Intake Weir Asaka Connection Water Conveyance Channel

Murayama Reservoir Misono Adachi ward Tama River Kiyose city Ozaku Kanamachi Water conservation forests Hamura Intake Weir Mizuho town Higashi-murayama Kita ward Higashi- Itabashi ward Katsushika murayama city ward 21,631ha Hamura city Higashi- Nerima ward Musashi- Higashi- Arakawa ward Hinode town kurume city murayama city yamato city Nishi- Toshima ward Fussa city tokyo city Nakano Bunkyo Taito ward Edogawa Kodaira city ward ward Sumida ward ward Akiruno city Musashino Shinjuku ward Gyotoku Movable Weir Hinohara village city Suginami Tachikawa Kokubunji city Koganei Chiyoda Akishima city city city Sakai ward Koto ward Kunitachi Mitaka city Suginami ward Shibuya city Chuo ward ward Fuchu city Minato Chofu city Setagaya ward ward Hino city Hachioji city Kinuta Meguro Edo River Kinutashimo Komae ward Lock Gate Tama city Inagi city city Nagasawa Shinagawa ward

Sagami Dam Chofu Intake Weir Tamagawa (halted) Tone River Machida city Ota ward Tama River Tama River Siroyama Dam Mixed river system of the Tone and Tama Rivers

Sagami River Intake Weir Sagami River Purification plant Dam (completed) Water conveyance channel (completed) Dam (under construction and planning) Water conveyance channel Agricultural water rationalization program (under construction and planning)

8 Outline of the Tokyo Waterworks/東京都水道局の概要

Yagisawa Dam

Crest height 131 m Naramata Dam Effective storage capacity 175.8 million m3 Water utilization capacity 115.5 million m3 Crest height 158 m Effective storage capacity 85.00 million m3 Water utilization capacity 85.00 million m3

Fujiwara Dam Crest height 95 m Aimata Dam Effective storage capacity 35.89 million m3 Water utilization capacity 31.01 million m3 Kusaki Dam Crest height 67 m Effective storage capacity 20.0 million m3 Sonohara Dam Naka River Water utilization capacity 20.0 million m3 Akaya River Crest height 140 m Effective storage capacity 50.50 million m3 Kasumigaura Yanba Dam Water utilization capacity 50.50 million m3 Crest height 77 m Water Conveyance Effective storage capacity 14.14 million m3 Katashina River Water utilization capacity 13.22 million m3 Agatsuma River Effective storage capacity 90.0 million m3 Construction period From 1976 to 2015 Water utilization capacity 90.0 million m3 Construction period From 1967 to 2015 Watarase River S51~H27 Tone Weir Kasumigaura kaihatsu Lake Kasumigaura

Shimokubo Dam Effective storage capacity 617.0 million m3 Crest height 129 m Tone River Water utilization capacity 278.0 million m3 Effective storage capacity 120.0 million m3 Watarase Reservoir Water utilization capacity 120.0 million m3 Kanna River Sekiyado Lock Gate Takizawa Dam Musashi Channel Effective storage capacity 26.4 million m3 Nakatsu River Water utilization capacity 26.4 million m3 Hitachigawa Floodgate Effective storage capacity 58.0 million m3 Water utilization capacity 58.0 million m3 Urayama Dam Construction period From 1969 to 2010 Ara River Edo River Crest height 156 m Saitama Goguchi Stage Ⅱ Tone River Estuary Weir S44~H22 Effective storage capacity 56.0 million m3 Water utilization capacity 56.0 million m3 Akigase Intake Weir Tone Chuo Naka Futase Dam Ogouchi Dam Yamaguchi Reservoir Arakawa Reservoir River Kita-chiba Water Conveyance Channel Asaka Channel Misato Crest height 149 m Okutama town 3 Crest height 95 m Effective storage capacity 185.4 million m3 Effective storage capacity 34.35 million m 3 Effective storage capacity 10.6 million m3 Effective storage capacity 21.8 million m3 3 Water utilization capacity 34.35 million m Water utilization capacity 185.4 million m Water utilization capacity 10.2 million m3 Nakagawa River/Edo River Water utilization capacity 20.0 million m3 Oume city Ozaku Intake Weir Asaka Connection Water Conveyance Channel

Murayama Reservoir Misono Adachi ward Tama River Kiyose city Ozaku Kanamachi Water conservation forests Hamura Intake Weir Mizuho town Higashi-murayama Kita ward Higashi- Itabashi ward Katsushika murayama city ward 21,631ha Hamura city Higashi- Nerima ward Musashi- Higashi- Arakawa ward Hinode town kurume city murayama city yamato city Nishi- Toshima ward Fussa city tokyo city Nakano Bunkyo Taito ward Edogawa Kodaira city ward ward Sumida ward ward Akiruno city Musashino Shinjuku ward Gyotoku Movable Weir Hinohara village city Suginami Tachikawa Kokubunji city Koganei Chiyoda Akishima city city city Sakai ward Koto ward Kunitachi Mitaka city Suginami ward Shibuya city Chuo ward ward Fuchu city Minato Chofu city Setagaya ward ward Hino city Hachioji city Kinuta Meguro Edo River Kinutashimo Komae ward Lock Gate Tama city Inagi city city Nagasawa Shinagawa ward

Sagami Dam Chofu Intake Weir Tamagawa (halted) Tone River Machida city Ota ward Tama River Tama River Siroyama Dam Mixed river system of the Tone and Tama Rivers

Sagami River Intake Weir Sagami River Purification plant Dam (completed) Water conveyance channel (completed) Dam (under construction and planning) Water conveyance channel Agricultural water rationalization program (under construction and planning)

9 2 Forecasting of the maximum 2 一日最大配水量の予測 distribution amount per day

The water demand in Tokyo has been increasing each 東京の水道需要は、年々増加を続けてきた。特に昭 year. In particular, during the high economic growth 和30年代後半から昭和40年代にかけての経済の高 period from the early 60s( second half of Showa 30s) 度成長期には、東京を始めとする首都圏に人口や産業 to the first half of the 70s( Showa 40s), water demand が集中したため、大幅な増加を記録した。 recorded a substantial increase due to the concentration しかし、昭和 48 年秋のオイルショック以降、経済 of population and industries in the metropolitan areas of の低成長への移行や水道需要抑制策の浸透等により、 Tokyo. 水道需要の増加傾向は急激に緩和された。最近では、 However, after the oil crisis in the fall of 1973( Showa 48), the upward trend of water demand slowed sharply 長期にわたる景気の低迷等の影響を受け、一日最大配 due to the shift to a lower economic growth rate and 水量は横ばい、又は減少傾向で推移している。 penetration of a restrictive water demand policy. In recent 今後の水道需要は、平均世帯人員の減少等により一 years, due to the long economic slump, the maximum 人当たりの使用水量の増加が見込まれることなどか distribution amount per day leveled off or has been on a ら、一日平均使用水量は引き続き増加傾向を示すと考 declining trend. えられる。それに伴い、一日最大配水量は平成 25 年 As for the water demand in the future, the average 度には600万m3 程度になるものと予測している。 consumption amount per day is forecasted to increase continuously because water usage per person is expected to increase from the decrease in the average number of persons in the household. With this change, the maximum distribution amount per day is forecasted to total around 6 million m3 by FY 2013( Heisei 25).

Figure : Transition of Average Consumption Amount per Day (Ward area + 28 cities and towns) 図 一日平均使用水量等の推移(区部+28市町)

Legend 凡例 x 1000 m3/day (千m3/日) Other Water for city その他 activities 6000 Leakage 都市活動用水 漏水 Industrial water Domestic water 工場用水 生活用水

5000

4000

水 量 使 配 用 水 3000 水 量 量 Amount 2000

1000 Distribution amount Consumed amount

0 1986 1987 198 8 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 FY 61 62 63 元 23456789 10 11 12 13 14 15 16 17 18 19 20 年度 Showa Heisei 昭和 平成 (Note) Value of “Leakages” after FY2008 include “Other non-effective supplies” previously counted under “Other”. Pre-FY2008 “Other” in the breakdown of water supply are comprised of “Non-effective supplies”, “Charge reduced supplies” and “Other non-effective supplies”. (注)平成20年度以降の「漏水量」には、これまでの「その他」に含んでいた『無効水量のその他』を加える。 10 なお、これまでの「その他」を構成する要素は、配水量分析における『無収水量』、『調定減額水量』、『無効水量のその他』である。 Outline of the Tokyo Waterworks/東京都水道局の概要

3 Organizational chart and 3 組織図及び職員構成 personnel composition

The organizational structure and personnel composition of 水道局の組織構成及び職員構成は、次のとおりであ the Bureau of Waterworks are as shown below. る。

Figure : Organizational Chart of Tokyo Waterworks Bureau (As of April 2009 (Heisei 21)) 図 東京都水道局組織図(平成21年4月現在) General Affairs Division Deputy Director General 総務部 for Technical Affairs 技 監 Personnel Division 職員部 Assets Management and Contracting Division 経理部 Customer Service Division サービス推進部 Director General Purification Division 局 長 浄水部 Water Supply Division 給水部 Construction Division 建設部

Coordination Division 調整部 Tama Waterworks Reform Promotion Facilities Division Center 施設部 多摩水道改革推進本部 Water Supply Management Offices 給水管理事務所 Water Supply Office 給水事務所 Training & Technical Development Center 研 修・開 発 セ ン タ ー Water Supply Operation Center 水運用センター Water Quality Management Center 水質センター Water Resources Administration Office 水源管理事務所 Reservoir Management Offices Branch Offices 貯水池管理事務所 支 所 Service Stations 営業所 Purification Management Offices 浄水管理事務所 Purification Plants Construction Offices 浄水場 建設事務所

Table : Table of Personnel Composition

表 職員構成表 (As of April 1, 2009 (Heisei 21)) (平成21年4月1日現在)

Engineering staff Clerical 技術系 Item staff Technician Total 事 項 事 務 Civil Mechanical Electric Environmental 技 能 合 計 engineering Architecture engineering engineering Forestry inspection 土 木 建 築 機 械 電 気 林 業 環境検査

Personnel number by job type 職種別人数(人) 1,609 1,091 10 377 397 48 153 401 4,086

Personnel number of management level 79 84 内管理職員(人)

11 4 Financial System and 4 財政制度と今後の財政運営 Future Financial Management

The Tokyo Waterworks are operated as a local public 東京都の水道事業は、地方公営企業として運営され enterprise, which is required to ensure its public nature ており、公共性の確保と経済性の発揮を求められてい and maintain economic efficiency. The waterworks uses る。会計制度については、企業会計方式を採用している。 the enterprises accounting system as its financial system. また、独立採算で運営しており、事業運営に必要な Additionally, the waterworks business is conducted on 経費は水道料金収入により賄っている。一方、建設事 a self-supporting accounting system, and the expenses 業は、企業債のほか、国庫補助金、一般会計繰入金な required are covered by the revenue from water charges. どを財源としている。 On another front, the construction projects are financed by enterprise loans as well as governmental subsidies 予算の議決、決算の認定、水道料金改定(条例改正) and money transferred from general account. の議決などは、都議会の権限である。 The Tokyo Metropolitan Assembly has the authority to make decisions on the budget, approve account settlement, and make revisions to water charges (amendment of the ordinances).

Figure : Account Settlement for FY 2008 (Heisei 20) 〈Balance Sheet〉〈貸借対照表〉 図 平成20年度決算 Assets : 2,577.6 B yen Liabilities : 241.4 B yen 資 産 : 25,776億円 負 債 : 2,414億円

Fixed liabilities Allowance for employees retirement benefits, allowance for repairs, etc. Capital 147.8 2,336.2 B yen 資本 固定負債 23,362億円 退職給与引当金、修繕引当金など Fixed assets Capital 1,478 Lands, Owned capital, buildings, etc. Borrowed capital 1,766.1 Current liabilities Current assets 2,310.2 Accounts payable, 資本金 Cash, securities, etc. 固定資産 advance received, etc. 267.3 自己資本金、 93.6 土地、建物など 借入資本金 流動資産 23,102 17,661 流動負債 現 金 、有 価 証 券 な ど 未払金、前受金など Borrowed capital 2,673 of capital fund 936 431.9 資本金のうち Deferred accounts 借入資本金 Surplus Bond issue discount 4,319 National subsidies, and expenses unappropriated earned surplus, etc. 0.1 570.1 繰延勘定 剰余金 企業債発行差金 国庫補助金、未処分利益剰余金など 1 5,701

〈Profit and loss account〉〈収益的収支〉 〈Capital income and expenditures〉〈資本的収支〉

Income : 337.9 B yen Expenditure : 273.8 B yen Income : 27.1 B yen Expenditure : 147.8 B yen 収 入 : 3,379億円 支 出 : 2,738億円 収 入 : 271億円 支 出 : 1,478億円

National subsidies and investments from Costs for general account 6.9 facilities maintenance, 国庫補助金及び water supply, 一般会計出資金 69 collection of Other 2.0 charges, etc. その他 20 197.6 Construction funds Construction funds carried forward 施設の維持管理、 brought forward 9.8 給水、料金 6.3 翌年度への Revenue from 繰越工事資金 収納などの 前年度からの water charges 繰越工事資金 63 98 299.0 費用 水道料金 1,976 Bonds 11.9 Cost for facilities 収入 企業債 119 construction/ 2,990 improvement Interest paid etc. 81.7 14.0 施 設 の 建 設・ 支払利息など 140 改良の費用 Depreciation 817 expenses, etc. 62.2 Shortage of 減価償却費など balance Redemption of △120.7 bonds 622 56.3 収支不足 企業債の Other Net profit 64.1 △1,207 償還金 38.9 563 その他 純利益 12 389 641 Outline of the Tokyo Waterworks/東京都水道局の概要

During the high economic growth period and several 昭和35年代から昭和50年代の高度経済成長期及 years after the period from the 1960s to the first half of びそれに続く数箇年は、水道需要の急増に対応した施 the 1980s, we raised the water charges almost every 設拡張による固定費の増加や物価の急騰などから、お three years due to an increase in fixed expenses for おむね3年ごとに料金改定を行ってきた。その後、昭 facility expansion in response to a sharp increase in water 和60年代からは、経済情勢の安定や内部努力の推進 demand and a sudden rise in commodity prices. Since などを背景に、財政状況はほぼ順調に推移してきた。 the second half of the 1980s, our financial condition has しかし、施設整備コストの上昇、水源水質の悪化に been favorable due to stabilization of economic conditions and promotion of internal efforts. よる浄水処理経費の増加などにより、平成5年度末に However, at the end of FY 1993 (Heisei 5), the one-year は単年度収支のみならず、累積収支でも不足額が発生 balance as well as the accumulated balance were in the した。 red due to an increase in facilities improvement costs and このため、平成6年に、平成9年度までの4箇年を the increase in water treatment costs from deterioration in 計画期間とする財政計画を策定し、内部努力を行って the quality of water resources. もなお不足する額については料金改定を行うなどして For this reason, we tried to establish a firm financial base 財政基盤の確立を図ってきた。その後も健全な財政運 by preparing a four-year financial plan with the planned 営に努め、内部努力を行うことにより、平成 17 年1 period from FY 1994 to 1997 (Heisei 6 to 9) in 1994 (Heisei 月には料金水準の引下げを実施した。 6) and by raising water charges to compensate for deficits after our best efforts at reducing costs. We reduced the より信頼性の高い水道システムの構築と質の高い水 charge level in January 2005 (Heisei 17) by executing 道サービスを展開するため、平成 18 年 12 月には、 sound financial management and making our best efforts 平成 21 年度までの 3 箇年を計画期間とする「東京 after the plan. 水道経営プラン 2007」を策定した。この計画では、 To establish a highly reliable waterworks system and to 経費縮減と収入確保に取り組むことで、現行の料金水 deploy high quality waterworks services, we developed 準を維持しながら、計画の最終年度となる平成21年 a three year plan from FY 2006 to 2009 (Heisei 18 to 度末には累積資金収支を均衡させることとしている。 21), the Tokyo Waterworks Management Plan 2007, in December 2006 (Heisei 18). In this plan, we will balance accumulated income and expenditures by the end of FY 2009 (Heisei 21) while maintaining the current charge level by reducing expenses and the securement of revenues.

Figure : Transition of Water Supply Cost and Unit Selling Price 図 給水原価と販売単価の推移

240.00

Water supply cost 給水原価 220.00 Unit selling price 販売単価 ) 3 Revision of water charges in June 1997 200.00 平成9年6月料金改定 Revision of water charges in January 2005 (円/m 3 Revision of water charges in June 1994 平成17年1月料金改定 180.00 平成6年6月料金改定 yen/m Revision of water charges in June 1989 平成元年6月料金改定 160.00

140.00 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 FY 平成元 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 年度

unit : yen/m3(単位:円/m3)

FY 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 年度 平成元 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Water supply cost 給水原価 189.18 191.26 190.81 192.07 200.28 208.18 210.02 212.42 211.23 218.67 216.62 218.61 217.80 217.00 215.10 216.24 211.54 209.74 205.81 204.79 Unit selling price 190.16 189.95 189.44 188.28 187.03 207.92 216.69 215.60 218.37 218.72 218.52 217.97 217.24 216.09 214.95 214.97 210.23 209.53 209.46 208.51 販売単価 13 5 Tokyo Waterworks Management Plan 2007 5 東京水道経営プラン2007

The Tokyo Waterworks Management Plan 2007 manifests 「東京水道経営プラン 2007」は、目標管理と成果 the project plan and financial plan for measures that will be 重視の視点に立ち、都民への説明責任を果たしていく implemented for three years to achieve accountability to the ため、3年間に取り組んでいく施策の事業計画と財政 citizens of Tokyo from the viewpoint of results management 計画を明らかにしたものである。 and emphasis on results. (1)計画期間 (1) Planned period Three years from FY 2007 (Heisei 19) to 2009 (Heisei 21) 平成19年度から平成21年度までの3年間 (2) Management policy (2)経営方針 The Tokyo Waterworks provides water services to our 東京水道は、都民生活と首都東京の都市活動を支え customers with a solid feeling of safety and stability while るライフラインとして、効率経営に努めながら、一層 trying to achieve efficient management as one of the lifelines 確かな安心・安定を実感できる水道サービスを提供し supporting the citizens of Tokyo and urban activities of the ていく。 capital. We are also promoting forward-looking efforts and handing また、将来を見据えた取組を進めるとともに、東京 over the traditions of the Tokyo Waterworks to the next 水道の伝統を次世代に引き継いでいく。 generation. (3)主要施策 (3) Main measures ア 将来にわたる安全でおいしい水の安定的な供給 a. Stable supply of safe, better tasting tap water in the future イ ニーズに応じたお客さまサービスの積極的な展開 b. Active development of customer services in response to ウ 効率的で責任ある運営体制の構築など経営基盤の needs 強化 c. Strengthening of the management base, including the establishment of an efficient, responsible management エ 給水安定性の向上と経営の効率化に向けた広域化 structure の推進 d. Expanding the integration area of waterworks management オ 次世代を見据えた幅広い施策の推進 toward improving the stability of the water supply and the (4)財政・事業運営体制 promotion of management efficiency ア 財政収支計画 e. Promotion of a wide range of measures for the next 次ページ資料のとおり generation イ 経営努力 (4) Financial and project management structure a. Fiscal income and expenditure plan as shown in the 次ページ資料のとおり material on the next page ウ 事業運営体制 b. Management efforts as shown in the material on the next 公共性と効率性を両立させながら、将来にわたり、 page 責任をもって安全でおいしい水を安定的に供給してい c. Project management structure くために、水道局及び監理団体が水道事業における根 To responsibly and stably supply safe, better tasting tap 幹的業務を担う一体的運営体制を構築していく。 water in the future while satisfying both the expectations また、監理団体への業務移転については、区部は施 of the public and the need for efficiency, an integrated management structure in which the Bureau of Waterworks 設整備の状況を踏まえ、平成 28 年度までに、多摩は and the administrative organizations are responsible for the 事務委託の解消等に合わせ、平成24年度までに体制 essential affairs of waterworks projects will be established. を構築していく。 Additionally, as for the transfer of operations to the (5)目標管理 administrative organizations, the structure will be established 16ページ資料のとおり by FY 2016 (Heisei 28) in the ward area based on the progress of facility improvement and by FY 2012 (Heisei 24) in the Tama area in time for the dissolution of the commission for office administration. (5) Target management as shown in the material on page 16

14 Outline of the Tokyo Waterworks/東京都水道局の概要 Outline of Tokyo Waterworks Management Plan 2007 東京水道経営プラン2007の概要

(Unit: million yen) (1)Fiscal income and expenditure plan 財政収支計画 ( 単 位:百 万 円 ) Accumulated income Income Expenditures Income and and expenditure 収 入 支 出 expenditure over-and-under over-and-under absorbed overhead FY Money absorbed 累積収支過不足額 Principal Construction & 年度 Bond National transferred Operating Interest overhead Settled Total redemption improvement account Charges issues subsidies from general Other cost expenses Total 収支 money costs of 2006 account 過不足額 18年度末決算 料 金 起 債 国庫補助金 一般会計繰入金 そ の 他 計 営業費用 支払利息 元金償還金 建設改良費 計 1,610 Planned 320,307 22,584 6,662 4,633 40,309 394,495 210,438 17,425 66,282 99,918 394,063 432 1,964 計画 (△3,900) (5,000) Settlement 66,383 92,143 2007 319,325 14,053 5,277 4,547 37,174 380,376 205,364 15,920 379,810 566 2,176 19年度 決算 (△3,900) (5,000) Difference 101 △ 7,775 増減 △ 982 △ 8,531 △ 1,385 △ 86 △ 3,135 △ 14,119 △ 5,074 △ 1,505 (0) (0) △ 14,253 134 212 Planned 321,327 12,644 6,560 4,797 40,187 385,515 216,726 16,072 53,353 100,856 387,007 △ 1,492 472 計画 (5,000) 2008 Settlement 92,740 313,947 8,942 4,865 4,063 39,735 371,552 210,942 13,947 53,326 370,955 597 2,773 20年度 決算 (5,000) Difference △ 27 △ 8,116 増減 △ 7,380 △ 3,702 △ 1,695 △ 734 △ 452 △ 13,963 △ 5,784 △ 2,125 (0) △ 16,052 2,089 2,301 Planned 323,078 12,154 5,171 4,888 54,507 100,705 計画 42,854 388,145 218,502 14,903 (5,000) 388,617 △ 472 0

2009 Budget 322,094 11,643 4,912 6,425 44,233 389,307 217,698 13,253 54,484 105,105 390,540 △ 1,233 1,540 21年度 予算 (7,400) Difference △ 984 △ 511 △ 259 1,537 1,379 1,162 △ 804 △ 1,650 △ 23 4,400 1,923 △ 761 1,540 増減 (2,400) Planned 174,142 964,712 47,382 18,393 14,318 123,350 1,168,155 645,666 48,400 301,479 1,169,687 △ 1,532 0 計画 (△3,900) (15,000) Total Expected 174,193 955,366 34,638 15,054 15,035 121,142 1,141,235 634,004 43,120 289,988 1,141,305 △ 70 1,540 計 見込 (△3,900) (17,400) Difference 増減 △ 9,346 △ 12,744 △ 3,339 717 △ 2,208 △ 26,920 △ 11,662 △ 5,280 51 △ 11,491 △ 28,382 1,462 1,540 Note 1: Bond issues and principal redemption money do not include those refunded. Note 2: Principal redemption money represents the amount after equalization due to the introduction of the one-time depreciation at maturity system for private bonds (The amounts in parentheses are the effect of equalization). Note 3: Construction & improvement costs include the accumulated fund for the renewal of large purification plants and the accumulated fund for Okumtama water supply facilities improvement (The amounts in parentheses are accumulated). (注1)起債及び元金償還金は、借換分を除いたものである。 (注2)元金償還金は、民間債の満期一括償還制度導入に伴う平準化をした後の額である(括弧内は内書き)。 (注3)建設改良費は、大規模浄水場更新積立金及び奥多摩水道施設整備積立金を含めた額である(括弧内は内書き)。

(Unit: million yen) (2)Management efforts 経営努力 ( 単 位:百 万 円 ) FY 2007 FY 2008 FY 2009 Total Item 19年度 20年度 21年度 計 事 項 Planned Settlement Difference Planned Settlement Difference Planned Budget Difference Planned 計画 決算 増減 計画 決算 増減 計画 予算 増減 計画 Fundamental review of project management structure 2,602 2,602 0 3,817 3,842 25 6,280 6,330 50 12,699 (Reduction of the regular number of staff) (250 person) (250 person) (0 person) (150 person) (150 person) (0 person) (250 person) (250 person) (0 person) (650 person) 事業運営体制の抜本的な見直し(職員定数の削減) (250人) (250人) (0人) (150人) (150人) (0人) (250人) (250人) (0人) (650人) Reduction of existing expenditures 981 1,335 354 1,428 1,480 52 1,947 1,905 △ 42 4,356 既 定 経 費 の 節 減 Effective use of assets, etc. 1,971 1,721 △ 250 479 1,797 1,318 2,495 1,863 △ 632 4,945 資 産 の 有 効 活 用 等 Total 5,554 5,658 104 5,724 7,119 1,395 10,722 10,098 △ 624 22,000 計

(Unit: million yen) (3)Main project plan for facilities improvement 施設整備主要事業計画 ( 単 位:百 万 円 ) Planned amount by FY 年度別計画額 Project name Project expense FY 2007 FY 2008 FY 2009 事 業 名 19年度 20年度 21年度 事業費 Planned Settlement Difference Planned Settlement Difference Planned Budget Difference 計画 決算 増減 計画 決算 増減 計画 予算 増減 Water resources and purification plants improvement project 96,000 32,000 27,505 △ 4,495 32,000 24,888 △ 7,112 32,000 30,000 △ 2,000 水源及び浄水 施設整備事業 Transmission/distribution facilities improvement project 157,000 52,000 57,118 5,118 52,000 59,598 7,598 53,000 54,000 1,000 送配水施設整備事業 Water supplying facilities improvement plan 給水設 備整備事業 17,000 6,000 4,401 △ 1,599 6,000 4,852 △ 1,148 5,000 6,000 1,000 Total 270,000 90,000 89,024 △ 976 90,000 89,338 △ 662 90,000 90,000 0 計 Enterprise bonds 企 業 債 47,382 22,584 14,053 △ 8,531 12,644 8,942 △ 3,702 12,154 11,643 △ 511 National subsidies 18,393 6,662 5,277 △ 1,385 6,560 4,865 △ 1,695 5,171 4,727 △ 444 財 国 庫 補 助 金 源 Money transferred from general account 一般会計繰入金 6,902 2,234 1,970 △ 264 2,334 1,520 △ 814 2,334 1,179 △ 1,155 Other 197,323 58,520 67,724 9,204 68,462 74,011 5,549 70,341 72,451 2,110 Financial resource そ の 他 15 (4)Promotion of results management 目標管理 ○ Indexes related to management 経営に関する指標

FY 2007 FY 2008 FY 2009 Item 19年度 20年度 21年度 項 目 Planned Result Planned Result Planned 計画 実績 計画 実績 計画

Number of service connections per employee (x 1000/employee) 1.5 1.5 1.5 1.6 1.7 職員一人当たり給水件数 (千件/人) 経営の効率性 (km/employee) Total length of distribution pipes managed per employee 5.6 5.6 5.8 5.8 6.2 職員一人当たり配水管管理延長 (km/人)

(x 1000 m3/employee) Accounted-for water per employee 337.9 334.4 350.6 341.4 374.2 職員一人当たり有収水量 (千m3/人)

(yen/m3) Water supply cost 204.5 205.8 205.7 204.8 204.7 (円/m3)

Efficiency of management 給水原価

Rate of employee payroll (%) 8.0 7.9 8.1 7.9 7.7 職員給与比率 経営基盤の強化収益性 Balance in enterprise bonds (x 100 million yen) 5,003 4,763 4,596 4,319 4,173 企業債残高 (億円) Ratio of principal and interest redemption to revenue on water supply (%) 27.2 27.0 21.4 21.4 21.3 給水収益に対する元利償還割合 Strengthening of management base Ratio of owned capital to total capital (%) 73.5 72.5 75.7 73.9 77.9 自己資本構成比率

Ordinary balance ratio (%) 119.3 124.7 119.4 122.9 120.1

bility 経常収支比率 Profita-

Note 1: All the index values are calculated based on the amounts including taxes. Note 2: Water supply cost is calculated based on the fund that includes the capital expenditures in the total expenditures. Note 3: Water supply cost, balance in enterprise bonds, and ratio of owned capital to total capital are calculated based on the amounts after equalization due to the introduction of the one-time depreciation at maturity system for private bonds. Note 4: The calculation of ratio of principal and interest redemption to revenue on water supply does not tinclude that of refinanced. (注1)指標値は、すべて税込みの額により算出している。 (注2)給水原価は、総支出額の中に資本的支出額を含めた資金ベースで算出している。 (注3)給水原価、企業債残高及び自己資本構成比率は、民間債の満期一括償還制度導入に伴う平準化をした後の額を基準として算出している。 (注4)給水収益に対する元利償還割合は、借換分を除いたもので算出している。

○ Indexes related to facilities improvement 施設整備に関する指標

FY 2007 FY 2008 FY 2009 Item 19年度 20年度 21年度 (Achievement FY)( 達成年次) 項 目 Result 実績 Result 実績 Planned 計画 Target 目標 Rate of acquired water amount for stable water supply in a drought (FY 2011)(23年度) (%) 92 93 94 渇水時における安定給水のための水源確保率 100 Rate of earthquake-resistant filter (FY 2016)( 2 8 年度) (%) 56 56 56 ろ過池耐震施設率 90 Rate of earthquake-resistant service reservoir (FY 2016)( 2 8 年度) (%) 39 50 56 配水池耐震施設率 95 Rate of water supply capacity in power outage (FY 2013)( 2 5 年度) (%) 88 88 93 停電時の給水確保率 100 安定給水Rate of the water supply in an accident (FY 2016)( 2 8 年度) (%) 73 73 77 事故時の安定給水確保率 85 Rate of replacement of aged pipes (FY 2013)( 2 5 年度) (%) 97 98 99 経年管の解消率 100 Rate of replacement of early ductile iron pipes (FY 2016)( 2 8 年度) (%) 12 16 19 初期ダクタイル管の解消率 55

Stable supply of water Rate of ductile iron pipe (FY 2013)( 2 5 年度) (%) 99 99 99 ダクタイル鋳鉄管率 100 Rate of earthquake-resistant joint of pipeline (FY 2016)( 2 8 年度) (%) 23 24 26 管路の耐震継手率 35 Rate of earthquake-resistant joint in distribution route for major facilities (FY 2016)( 2 8 年度) (%) 23 27 38 重要施設供給ルートにおける耐震継手率 100 Rate of earthquake-resistant large diameter service pipes (FY 2013)( 2 5 年度) (%) 69 72 78 大口径給水管の耐震化率 100 Distribution rate of processed water by advanced water treatment system 水の供給安全でおいしい (FY 2013)( 2 5 年度) (Tone River system) (%) 54 62 76 高度浄水処理率(利根川水系) 100 Achievement rate of residual chlorine decrease (FY 2013)( 2 5 年度) (%) 66 62 65 残留塩素目標達成率 100

tap water Achievement rate of trichloramine decrease (FY 2013)( 2 5 年度) (%) 83 85 75 better tasting Supply of safe, トリクロラミン目標達成率 100 向けた取組蛇口回帰に Rate of water storage tank inspection (FY 2008)( 2 0 年度) (%) 61 (注)73 ー 貯水槽点検率 100

water Rate of direct water supply from distribution main (FY 2016)( 2 8 年度) (%) 64 64 65 return to tap 直結給水率

Efforts toward 70 (Note)The Bureau has given explanations regarding inspection to water storage tank owners; however inspection was not conducted for about 30% of tanks because no permission was granted. 16 (注)当局では、貯水槽の設置者に対して、点検に関する説明を行ったが、承諾が得られないこと等により、約3割について点検を実施することができなかった。 Outline of the Tokyo Waterworks/東京都水道局の概要

6 Tokyo Waterworks 6 東京水道長期構想 STEPⅡ Principal Vision STEP Ⅱ

In November 2006 (Heisei 18), the Bureau of Waterworks 水道局では、「東京水道新世紀構想- STEP21 -」 developed the “Tokyo Waterworks Principal Vision STEP に続く、新たな施設整備長期構想として、平成 18 年 II – Safe Waterworks, our pride to the world” as a new 11 月、「東京水道長期構想 STEP Ⅱ~世界に誇る安 facilities improvement principal vision following the “Tokyo 心水道~」を策定した。この構想は、東京水道が将来 Waterworks New Century Vision – STEP 21.” This vision にわたって、都民生活と首都東京を支える水道であり basically aims to make sure the Tokyo Waterworks 続けることを基本的な目標とし、これからおおむね四 supports Tokyo citizens and the capital Tokyo in the 半世紀の間に行っていく施策の方向を示した基本構想 future and is the basic vision that shows the directions of the measures for the next quarter century. It is also the であり、今後の水道施設整備の指針となるものである。 guideline for improvements in waterworks facilities in the 本構想では、首都東京の現状を踏まえ、東京水道の future. あるべき姿として「都民生活を支える水道」と「首都 With this vision, based on the current condition of 東京の機能を支える水道」の二つを基本視点と位置付 the capital Tokyo, two basic viewpoints: “waterworks け、今後、東京水道が進むべき六つの方向性と施策の supporting Tokyo citizens” and “waterworks supporting 展開を示している。 the functions of the capital Tokyo” are set as the goals of the Tokyo Waterworks, and the six ways and developments of measures to be advanced and carried out by the Tokyo Waterworks in the future are shown.

Goals for Tokyo Waterworks 東京水道の進むべき方向

1 Waterworks to support an affluent life 2 High level waterworks to supply water stably 3 Sustainment of waterworks for next generation 4 Waterworks with global environmental consideration 5 User-friendly waterworks 6 Leader in the waterworks field ① 豊かな暮らしを支える水道 ② 断水のない高水準な水道 ③ 次世代につなげる水道 ④ 地球環境に配慮した水道 ⑤ 分りやすく親しみやすい水道 ⑥ 水道界をリードする水道

17 7 Project for Safe, 7 安全でおいしい水プロジェクト Better Tasting Tap Water

The Bureau of Waterworks has been promoting the Safe, 水道局では、水道水質に対するお客さまニーズの高 Better Tasting Tap Water Project since 2004 (Heisei 度化・多様化にこたえるために、平成 16 年から「安 16) in order to respond to sophisticated and diversified 全でおいしい水プロジェクト」を推進している。プロ customer needs for tap water quality. In this project, we ジェクトでは、国の水質基準よりも高いレベルの東京 set Tokyo’s unique water quality target for better tasting water, which is stricter than the national water quality 都独自の「おいしさに関する水質目標」を定め、目標 standards and are developing comprehensive measures 達成に向けて、水源から蛇口までの総合的な施策展開 from water resources to faucets to achieve the target. を図っている。 Until now, we have ensured the safety of tap water and これまで、高度浄水処理の導入や経年管の取替えな improved taste by carrying out a variety of different efforts, ど様々な取組を実施してきており、水道水の安全性の such as introduction of an advanced water treatment system and replacement of old pipes. The result is that 確保はもとより、おいしさの点でも改善されてきてい the rate of customers who are satisfied with the tap water る。その結果、飲み水としての水道水に満足している as drinking water is higher than before. お客さまの割合は、以前に比べて上昇している。 However, more than 30% of our customers are still しかし、いまだ30%を超えるお客さまが満足して not satisfied. Therefore, we launched a new project by いない状況にある。そのため、平成19年からプロジェ revising the project in 2007 (Heisei 19) and have been deploying measures so that the customer can comfortably クトの推進内容を改定した新たな計画をスタートさ drink our tap water directly from the faucets. せ、お客さまにより安心して蛇口から直接水を飲んで Specifically, we have implemented measures for the いただけるよう、各施策の展開を図っている。 steady introduction of an advanced water treatment 具体的には、高度浄水処理の着実な導入や直結給水 system, promotion of direct water services, and reduction 化の促進、残留塩素の低減化などの施策と、施策の展 of residual chlorine and then carried out PR activities for the implementation of events and the waterworks caravan 開に合わせたイベントや水道キャラバンの実施などの in line with the deployment of measures. PRを行っている。 Additionally, we will promote the understanding of tap また、次世代を担う子どもたちの水道水に対する理 water by children who represent the next generation and 解促進を図り、蛇口から直接水を飲むという日本が誇 will ensure the succession of a tap water culture that る水道文化を確実に継承していく。 allows customers to drink water directly from the faucets and which Japan can be proud of.

Figure : System of the Measures for the Safe, Better Tasting Tap Water Project 図 安全でおいしい水プロジェクトの施策体系

System of the Measures for the Safe, Better Tasting Tap Water Project 安全でおいしい水プロジェクトの施策体系

Produce safe, better tasting water and deliver it to customers PR activities from the viewpoint of customers お客さまに安全でおいしい水をつくり、届ける お客さまの視点に立ったPRを行う

(1) Pursuit of palatability (2) Protection of water resources (1) PR of tap water (3) Production of safer, better tasting water (4) Delivery of better tasting water to faucets (2) PR of the bureau of waterworks (5) Check of safety (3) Reflect customer demands (6) Reduction of residual chlorine (1)水道水をPRする (1)おいしさを追求する (2)水道局をPRする (2)水源を守る (3)お客さまの声を反映する (3)より安全でおいしい水をつくる (4)おいしい水をそのまま蛇口まで届ける (5)安全性をチェックする (6)残留塩素を減らす

Succession of tap water culture 水道文化を継承していく 18