Grand Forks herald. [volume] (Grand Forks, N.D.) 1916-1955, 1918-03-09
NeN
Filtered
Eswt-r- Water Sewage
treated bacteria Bacteria

49,
G. g. IN raw
Average r"rber % bacteria per
r. g. in - water.
Bsr-nria1 efficiency sc
~Al'hou"h tn enunber Of bac.erie,ostc-
al analyses % the raw water is small
re AVERAGE lumber very ia
vorably win ,hst <ourd doing ,he IRE
.sons month. showing a slight increase.
The reduction OF bacteria in ihe ian
water was greater this mrn., ,h.n ia.,.
pc was also the "hacte-isl ericino-v.
Va wish to point ont that when one o r
%r.ater. the bacterial efficiency of IN.
hlter is exceptionally good. Sewage t.r-
tsrIa anr.ared in the tap water. only
in ercess of the United states public
health standards.
Summary: The meteorological data
SHOWN that the water being supplied to
Forks meets the strict requirement. for
nnrt'y demanded by the United sta tes
public health service. "
A. a result Of scftening. the go parts
water has decreased in the water deliv-
cred to the consumer to lien. y. m. Tbe
water from the filter tss met the re-
Guirements Of the contract to the extent
caust:c alFa't. only a trace Of iron. The
color also has met the. contract. The
turbtd!ty which at present. does not meet
tne contrast recruitment will be decreased
S'-~ 'tSS u III OIcy NtlOn.
The amount of IRON nresent in the tan
water during the month of February. has
steadily decreased. this is due 70 the fact
that the iron ncrustatfons which has ar
cumulated in the pipe FOR several wears
are being dissolved gradually and washed
from the mains. 1850
ID During the past month the. chemical
I.ea machines have been Schecked twice.
This was done for the purpose Of de-
terrnining the carability OF the MACHINES
10 Feed a DESIGNATED amount Of c%ilernic-
e,s nSn faa1o pro "ysT t lS.f t periods m., Thi.
ase automatic. the stroke Of the ma
chimes d:rend upon the mount OF TIE
water which flows into the plant. The
lon: at no time during the experiment
varied move than one-half grain per
eaiion. These machines would rrn-s
s.ttsrsstory II the variation should run
the opinion Of the three men who ran
these tests that these mschines ars
proving sattsfsrtory and under proper
Attention Of the council is respectrul
which become air bound AFTER ,rhor,
the efficiency Of tn. n,t BEN. s'1 bound
- and n~eces.itates the Yren".nt uue II
large mount Of aAred water to vash
tIhere is IN fact a large wastaye o. III.
r'.s- W. ~ es.'.nes 0" snss tss :. t n,t.,
condition 10 not due 10 . faulty con.
str,'ction. OF the rrlant. or a faulty IN.
GRAFTON In the plant. The air prohabl,
eafns entrance 10 tho wetrr ~ tie r,,-s
or somewhere along the irtake nina. Thi,
CONDITION should be investigated II one1
and remedied. SS
Attention IS respectfully called "a IN.
lime received In rarlopd lots. ~ fhe yssrt
Due to the variable fydfate. calciun
content Of this lime, i CONTRACT shonit
be- entered into with the mIn,fAetvtef
IN order .thatsA high erade, ofyIifne .vii
be laid down 1t the pient. This recon-
mendation fs mad lbereIW~ chssntcs1Nl.
animation ofsthe lime received IN IN.
present condition shows ! calciufn nv
drate content, varying from S5% "a Se&
Lime showing q caicintn hydssts cor
tent less than ,soH shr..'a I'd.
Public Heal. $- i' 49,
Moved y Alderman Tarders, second
I'D by Alderman =. J.. S1,jfh. thsf tb,
shove report of tie supervisor Of mite
plsnt be referred 70 the Waterwork
r1TnYutttse to lnSestigate ~wJthsreas.d h
the variable. hydrate calcium sconten
aiity Of, The lime a. succested
~. OF zspiai.s water oenI,a..,.
Dir. ~. GoHs feupefstscv 5SS1cJty SNNss
Rpaaut. - ACKNOWLEDGEMENTS testks gcit,
IND results ~ 7sti nnn n. n sa !.
sIAlysts recently cOnductSd. sHe. S.1ss
that whiee. the fan 5watprs ~ atsIis sIj9htt
eotrted sfhfa cendltion wa 6airg ~
,uA1ly eltyrinefed: thats hi tfhfdlfy n
kDAtntng n due, 10 tncfnetati0n III III
~ &1$tEkxE h5gr@SSrist4tv X 49,