| Show if PURITY OF WATER AND ICE I Cannot be Determined by Simple t Chemical Analysis II h Asia rn V1jerlair the Stiraesndl In Noll S1ablit and AaI1 J Alistior 14 bay rot ro-t Ulnbll questioner chemloil l analysis asa II II as-a finite til I of the purity of lea or I water bating been failed In Ibo action J el City Inspector Qreenwald In condemning con-demning too from Ibo ponds ol Mr John A 1111 six 1 Miles mouth of Ibo I city upon B bra chemical aiulyilt of the water the following letter by i Prof IClogibury loilructor In clicmls i try at the Unimilly Utah lo Mr i Hills Is IntoreitlnK and timely funding on trio Aubjecti I UNIVBBBITY off UTAH Maioh 10 I IbOT 1 Mr John A UnitDear No one can always positively state according lo my Judgment whether water IB lularluus to Uesltti or not from the results ol a cbeinlosl analysis The same la true will rs pact to 0 inlctotcoplcal examination and Aluo a bclerlloglclonmlolIo 1110 possible that there mI bo life ease gom In water aOd tile chemical Dslyole fall to bow GUY appreciable amount ol organic matter Agalu the chemical nl On 1 my show cooldr able organic mailer and there may not bo a single l disease germ preterit tin water The chemloul analysis will Itlermlno many limes whether the organic matter In IbO water la of vegetable or animal orljln but not rilwnjs when tbire Is I no chlorine only a trace ol the lubilanco pool the organic matter discovered IB I with nil trobablllly of plant origin Whim Ion I-on 1110 other bono cauldrabl chlur Ino and even III I I a its use found animal mailer may ba lu The water of It may not Tho formation through which the Walter runs may bo blifhly Im rrlloold with cmwoo set II or other clorldes and also with nitrates accumulated trim 1 other sources than aulmal matlerao that ti eae aubalancei chlorine and nitrate July have no bear OR on Ibo orgaulo uruy of water whatever H bowavr there Is a large quantity Of chlorine chi nitrate In too water under oooldralloli Bud none or Merely traces In water from ad i acent surrotiDdlogo these tub eta a men would thou bu nil evidence ol I it I I Ibo orinlo matter being of ainmil origin Animal matter In gwatur even Is nOIIollIvo evidence 01 file I water being I bad i Much rise been done In regard to BicmtalnlnE the hygienic condition uf wor The 01010101 ouoolo mllor In water that mUUt prv dtrlmntal to health baa Leon caralullyojnaldired 4 and to my mlnJ with not Perfect 1Iraolry results nn up to the Itricnl lime X 0 twill stonelitil thla a ilcolalon haa bon rracbeJ which la cc rally racojulud mid upou which chtuilata 1 today partly or whol I ly Inter I prot the results of Ibelr I cbemlo1 u 0101100 Cb a arnanlo ntttvr It eteriiiinid generally by what Is I ca I led the ammoula Places and tho retails Interpreted aa follows by Vanblyn who la raoojn zad by many authority 00 this lItJolo When the water yields no albumin old ammonia It la I iooalurcd urgent Mlly pure i If the water gives leas I that 05 part of albuminoid amimnla lu OuOOJO palls U may te renanled aa quite putt II tli water ElTia M Part of altumliiold I I ammonia In IOuOOIIO loaethrr with a considerable mount of 1 ues alDmoolalt 1 more Dr tube I ads I plclou II wr yfoidB mar than 1 aituf Blhuuilnold ammonia In 1000 000 parts Ills very mailoljua a U li I i the albumlnoU reaches morn than 15 part InlCOJOOO flits water should b m corJtmuBj Profttaor Malll claims that Ilia hot piiaalbln lo decldo absolutely upu Ibo wboh imeness or unwholoiomsiiiMof a drinking water by Ibo trials mo ol any of the pro 0 ease 01 Analyses fir I file estimation 01 otiianic mailer or Ita conalltuonta 110 goes still farther and ttato I tnatlu ludalog tile uullar cundltbu uf Iht water nol only must such processes Lis land 10 ooolloclion with thu 10 vultllon 01 oilier evidences 01 a are general sort its 10 I he source air history ul the Witter but IbUllld oven be domed of secondary Importance 10 Weighing Iho reasons for aCotln nr rollnlla water not manifestly unfit ordilnklngou othtr groundt There are no Bound Rroutids on which to establish such general standards of p jurlty aa have boo proposed locklnji 10 exact amounts 01 organic carbon Dr iltrogen albuminoid ammonia oxy geo ol permanganate cjnaumad etc as pnrmlsilble or not Dlatlncllona drawn by the application of such standards are nlblllrY and may be misleading Two entirely legitimate directions room to bo open for the useful use-ful by chemical means ol ho orgrnlo constituents of drinking rater namely lint Ibo detection avery very gross pollution such as the con mlnallon of the water of a well by accidental bursting or cruihlnE of sollplpo txteialve leakage of uralus eta and secondly the period i lout examination of n water cupply ae of n great city lu order tw the nor coal or usual character 01 the water having beoo Ylnlouly crlallld any auspicious changes nrhlci from < Little to time limy occur shall be promi lly detected and their Cause In voatltaleJ lu connection with Ibis latter application of water analysis there voting to bs no objection to the establishment of local standards ol I uiltj Rr drinking walur based on tulllclontly thorough examination of the water supply in Its Usual condition condi-tion Ducks Hygiene Vol I page 803 slates that In view ot the luiposilblll ly of taylnu ixtctly what Is and what Is not harmful OilY considerable Jo parlor from the normal character of the J water In a given locality should to legacies with cutplolon U Is true Hint various students of Ibo matter ol wilier UPIly have formulated steal ards which u water my not overpass They are however only 01 rt let To value Plot Nichols of the MaaBachusells Inallluleof Technology Holds that an absolute atandiud lor wboltBome and unwholesome water SB maintained by Wauklyn 119 I Impracticable and would exclude many waters which are know 10 be treo Irool contain I Im t Ion and lo bo perfectly will mulled for domestic time Dr Htnart ol the U ti t army maintains that water may show albuminoid ammjiila I as lllgn aa 25 part I In lOOOuOO pta end still be rtgarded its harmless provided the Dr Rubio Impurity to I 01 Veleloble orIll 11 has bon louo trial mountain streams hive yielded to an analys a as much as 6 pun of albuminoid ammonia am-monia in 1000000 arta of water without with-out being contaminated with animal matter to which sanitary cflloera are moat Opt oxed I hun no doubt tint soma of our mountain elaama beror clothing own over rocks thioujh the canyons wtuld how u still gnu or amount of nlbumlnold than thai given above Irani the fact that time is much vogelUoll 10 the mountains uer which the water runs undergoing undergo-ing decjiupoilllon Now Is this vegetable vege-table iiinuiT detrimental to health Nichols holds that II must limit bo < understood that the preatnci 00 azalea of vegetable matter Is I ally bool u ite al-ly a rattler of lodlflereuue Water thus charge I mp be the causa 01 dJieatiaof the digestive organs wllb nut doubt Whether they may al < o caun any of Its socalled aymollc diseases or give rlae I In aceclflo diseases of peculiar type Is doubtful I In a discussion of chemical veiaua bactereolotlcal exsmlnalljn of potable water In Ibo Journal of Ihe American Chemical society W P Mason BtaliB 1 file sewage HI It occurs In practlci contains an immense deal of material other than that productive of dod d-od It la upon just this comparallvely harmleaa but constantly present material ma-terial that the chemist relics for the Indication I upon which he baaes his L i opinions Ill la unable I o say whether wheth-er or not a aowate laden water Is I disease dis-ease bearing on any particular dalefor to him all sewage Is I alike but he cooI emns the water for the lesson that Although II way be baimleii > toJay U II ImpuMlbleto predict what may bi I Its condition turn now The Idea bcieln conveyed Is not that the animal organic mailer la of Itiulf productive of I distant but that Us pnteucs In the rater Indicates that there la I seepae from alwll refuse 01 some CbOLO suit hence the water may become contaminated at any lime with dliuiae germs Animal life Ibo source of this anlw1 refute may become at any time infected with contagious diseases II It be determined without doubt III there it I no dlooo Rural In Waist 10 which there la vegetable organic mot ler Ibo II Is I doubtful IndeeJ ns to whether such organlo matter will pro dut contagious dlaiaaes and there would have lo be conaidernblu more organic mutter platen ban Weak lyn elves BB Ihe limit to tender ten-der water unwholesome Apilyinu all hit has boon thus lar stated le garding Water 10 Ice tire coooluoloo may safely be drawn that tell contain Ing considerable vegetable matter may be used for refrigerating purposca where U Is not mulled Slid mlxej with load without Ibo allsutat danger ol producing digestive disturbance lot alone contagious dUeaies According to my lodgment no one should ondomn water on the regatta of a chemical examination alone Tire water should be oollected by a competent com-petent chemist and surrounding should be carefully Inspected Tim foilnttlon and the mull through which the water runs should be t examined and IbO aormal state of Ibo water ad Jeeeni dtrwluod 100 Is I somts what dlOWout from the water Mineral matter In the wnltr ID I more or less removed during the freezing of f tho water Decensu utrmi If present may be dlroYI anti thou tho-u of tho Ice my be verlocUy all 10 10 use when the water Irolll wlliob II 10 frozen my bo mite or Iu dangerous In Ilse III wy ollnlon 10 avoid looses to men engagoj In the lea bjalueio the ponds turroundlng shouts be Inspected I In-spected In the fall and the water tj bu lId bo examined and pronou ties d goo 1 before III Is turned Into the pond Investigations shoulJ lu moo lu the proper tlmo and In Iho praror way I that both Hill producer and The pur chaxcr may buvu juallos as i dot us it I It possible to Intel out Along will chemical examinations mlcrooroplcJ and bacltrokulcal tzanjluatlout should bu med llBpectfully J T JWOEnUIIUV |
