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World Bank Document E-268 VOL. 2 ShanXi Guanzhong Irrigation Improvement Project(GIIP) Public Disclosure Authorized Evaluation Report on Environment Impact (Annexes) Public Disclosure Authorized Public Disclosure Authorized Shaanxi Institute of Public Disclosure Authorized Water Resources and Electric Power Investigation and Desigi December, 1998 Xi? an SlanXi Guanzhona Irrigation Improvement Project(GIIP) Evaluation Report on Environment Impact (Annexes) Shaanxi Institute of Water Resources and Electric Power Investigation and Design December, 1998 CONTENTS Instruction to the appendix Appendix 1 Review of the water quality of the Weihe River basin Appendix 2 Review of the existing condition of the water in the channels and reservoirs of the nine Guanzhong irrigation districts Appendix 3 Investigation of the existing condition of the soil of the Guanzhona irrigation area Appendix 4 Investigation of the using of the chemical fertilizer & farn insecticide of the Guanzhong irrigation area Appendix 5 Review of the quality of the agricultural environment of the Guanzhong irrigation area Appendix 6 TN-picalreview of the effects on the environment of the Baojixia head-gate engineering Appendix 7 Main standards for the reviews Instruction to the Appendix Because there are a lot of projects in the improvement enaineering, the review scope is so wide and thie en-vironment condition is multiple. it is difficult to describe in details some typical environment issues in a sinaie review report owina to the limit of the report lenath and we compose in additioii the appendix report in special. This appendix report .onsists of seven appendices. and the following issues are described in details. water quality of Weihe river, water qualitv of the channels and reservoirs of the irrigation district. .he existina soil condition of ithe irriaation area, the usin- condition of the chemical fertilizer and farml ins c tiide. tlhe agricultural environment quality, the reviewvof the effec:s Oin -lheenvironment of the typical en-ineerin----3aoix;ia head-gate engineer.-- mu -1memain standards 'or the reviewxs.All :he appendices are cor.loscu accorc:nu to :he syste;m of the data and materials from the Slhaarixi nrovinci.ai ESTItU[C Of environment science. the environment conservancy departmiient. mal;tinncand conserv anc% departmient and the soil & fertiiizer deortament 0i' the Shaan^xi pro incial '.ureau of the a-riculture & ivestock husbandry. a!.anxi pro\incial center of water qualitv moniorio'na Northwestcm -_ wttiral universit' and so on. Some issuLeson .he regional em;nronment :r- I<s.`bed in details that x\e concern speciallx. Because the sanrniin-z -,)s'i.i-'c and time and the monitorina method are different for different units. Aie o1-raand the materials are a little different. but Fhe review conciusion are ,I IsoI1telxt identical. Appendix 1 REVIEW OF WVATERQUALITY OF WEIHE RIVER Review of Water Qualitv of Weihe River Weihe River origins from the Wushu Mountain in Weivuan Count Gansu Province, flows across three provinces, Gansu, Ningxia and Shaanxi. and converges to the Huanghe River at Tongguan. It is the largest branch with the 8 18 km of the length, I- .477km: of the total basin area and 502km of the length in Shaanxi Province. The annual run-off is 7.63 billion m3 and the annual sediment run-off is 0.423 billion tons. At thiemiddle and dow,nstream of Weille is the rich Guanzhong Plain. On tihe main stream three irrigyationdiversion kev projects have been constructed and they are Baojixia plateau-up diversion project located at the Baoiixia narrow, Baojinxiaplateau-bellow diversion project located at XVeiiiabuand Jiaokou project fOrpumping ftrom'WVeihe River. The followino is the reviews of the water qualitv of the water svstem otfV;eihe rver ( Shaanxi section . 1. Dividing of the water function domains on the round According to the local standard of Shaan.xiprovince DB 61-224-1996, zhe wxaterfunction domains of the main stream of Weihe River are divided as the following table (table I-I). Division Plan of Water Function Domains of Main Stream of Weihe River Table 1-1 iounir' standard (or eltass, must j Iength of meet to Itrt tand I No. Domatn I nd Function Standard tor Standard lor %%ater qualiv. of' polluted l potnni i environment on water j1n~e im I yground dis.;harge | p to Lilljia.un Water |ne 109 km ! I ianie-- repieni,f-mnent pollution Ltinacun and urrigation dr-An arce 01 U .1, prohihnted. the existing ! I ~~~~~~~~~~~~~~~~~~~~~~~~~~drainmuitN mseet %Jass j Lin iasun- 'atcr OursC ,6. Skm I onnrnetm.lcon r Ior cIty 1. R:.ilarge to 3;angde River ; (Q iianhe and drinking I Z. lut)On up and :tO uown the ! 0V h W1iater ,u)r.r D0'Iion :s ;he ke> I 26~S ' !Iater ,onservancv area *nd no i draiI permaa4d but must meet iaandara I Cotnunction of Water jouree 33,4 km (Jmanne To tiw Sinr ustry t | must meet the nianned %kater ' ''ejhe X-Ca.iaPis i2 quauitN rcuuirenient for the !i .vn ot *__:t5}moo -der \ siealr *Ource 44 !tII .1 .2'"nN'ail ~vor moaustr\ 'l i .sltr -ecnarge !Sr 'iltnii U 104 !llnnal i wate;r xxt,ervan;%xe.et mu.,t !nce oLandaro 4 rae 1r4 trrmgation04.5~~~~~~~~~~~~~~55k n tn45.5km ;mon:tor -ection Iv IIi ' ;;nX:leg Water s km \a;i\ ing ~ ; onserN an,:.i juotman tii tng area olt'ass ! | later :CU!:t.'-:S' *'Aatcr N() km .mt''ne.;n - onservan.e 11[! all dntnn ano v,iluuon aunt n:ust hse 205 areai ot*:!ass il ' ontrilued bv thc tota i Uwanitt 205 imigation 4k) km iaokou Vater 30 km purnwing ttuwn- :45 con%ervan,%v iJ !I\an "atmer - area of elass II 1II I ^(-ur"c inm 75 li.ennan '_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ t3aivang %"ater irrigation |3 2 km u.monction of 25wi !Vethe To 39 398 [jj ellow RRiver J S neToiggutinI inlvestigation of the pollution soulrces in 'Weihe River basin (Shaanxi section) 2. Investigationand review of the main pollution sources at the both banks of Weihe River. From west to east section of Weihe River, the main cities and counties discharging pollution directly to Weihe River are Baoji City, Baoji County, Qishan County, Meixian County, Wugong County, Xingping County, Xianvang City, Xi' an City, Weinan City, Huaxian County and Huavin Countv. According to the investigation, the recent vearlv pollution discharging quantities of the above cities and counties are listed in the following table (table 1-2 ). Investization Result of the water pollution source of the cities and counties at both bank-sof Weihe River Tabile1-2 -.troqcct Waste water CODcr Petroleum ArOH Ptrcentasc of dischareed discharoed material Disclwared discharzed \result| discharged Saniarn "xaste cir a zounrv 1 104ton/vear io,vcear) ltonyear) ( tont-ear ) ~~ao~~~l~~~~~1021.8513.5~~uv 5.1 _..ii ionh~ 198.5 1893 138.6 1>- Otislun coUnnt 15-2.o) 2358 ;1.43 1.6 2o-% Nleitxian countv 1365.8 2049 27.* 1.4 20 Wugong county 1(83.4 1 1683 22.0 1.1 20% X1f11au1gcotUtD i4142.0 2178 2.59 ;o XianmIng cit 5 767.0 1 651 115.345.8 3(4 Xi'an city 17471.0 26207 349.4 17M5 40% Weinan city 4.71.7 6108 81.4 4.0 30% Huaxianncountv 1414.0 2121 28.3 1.4 ¶ 20% Hua!in county 1052.3 1578 21.0 | 1.1 _ 20% TOtW , _____ I420 _ The percentages of the waste water among the total discharged in Shaanxi section are calculated to make the comparison easier which are discharged bv the cities and counties at the both banks of Weihe River. And the results are listed in the following table ( table 1-3 ). Percentages of the waste water discharged by the cites and counties at the both banks of Weihe River Table 1-3 subJect Petroleum \Wasierw-;zter CODcr ArOH percenuage materials discharged discharged discharcd clt' &:Count Dischraged Baoii cat' 121 121A 12.fl Duoji CJout\ 4.6 4.7 4.6 4.5 OIslian count' - %leiNiancot*lt ,: 'Wmmi'Onl"2OUlIV ' 6 -, - ' *( A;in.'pImio Wt u':. ,4_ Xiunl;l" anti cI [3 (5 13 ()Ql),,! Xiancr.11 41W 42.2 , X1. X11.' '\V±a'l .dLI;l!tllcilIt\ ~ ~;35l nNI,.?6'. * .6,'.4 . ri'uai X.;1 zitI-I .--l i4 The above table 1-3 indicates that Xi' an. the provincial capital city, disrinbutes the most to the pollution of Weihe Rivter wvhateverthe wastei water. CODcr or petroleum materials. Xi'an discharges almost half of the nvaste wvaterand other main pollutant, the nex<tthree cities are Xiangyang, Baoji and Weinan. The waste drainage of other counties located in the both ...banks of Weihe River differ a little. So the main pollution sources of Weihe River are the four large cities. There are a north main channel and a south main channel in Baojixia irrigation area. The north main channel get the water from Linjiacun diversion dam which is 13 km far from Baoji city. So except to the possible pollution from the upstream Gansu Province, this section of the river almost hiasnot been polluted within the border of Shaanxi Province and the water quality is so good. The south main channel get the water from Weijiabu diversion dam w-hichis 1 km far from the Meixian Countv. And the water quality are affected by the industrial waste water and sanitarv waste water discharged from Baoiji City, Baoji Countv and Qishan County. So the discharging of the polluted and waste water from Baoji Citv must be controlled to improve the water quality in this section for irrigation. Now "Research of the Using of the Waste Water of Baoji Citvy.
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