Lead hauv Water Program

Pawg Neeg Saib Xyuas Ib Puag Ncig ntawm SPPS Cov Chaw Ua Haujlwm ua qhov kev kuaj dej txhuas hauv txhua qhov chaw. Saint Paul Public Schools thiab cov tsev kom paub txog tej qhov chaw haus dej uas muaj cov hmoov txhuas ntau thiab muab dej haus uas tsis muaj hmoov txhuas rau hauv Koog Tsev Kawm Ntawv.

 

Txhawm rau kuaj cov hmoov txhuas, cov qauv raug sau rau ntawm txhua lub tsev kawm ntawv raws li Lub Chaw Saib Xyuas Kev Tiv Thaiv Ib Cheeb Tsam (EPA) thiab Minnesota Lub Tsev Haujlwm Saib Xyuas Kev Noj Qab Haus Huv (MDH) cov lus qhia. EPA thiab MDH tau tsim ib qho kev txwv tshiab rau cov hmoov txhuas hauv cov dej haus hauv tsev kawm ntawv ntawm 5 feem ntawm ib billion (ppb). Cov qauv tshiab no tau pib siv rau lub Xya Hli 1, 2024, thiab cov tsev kawm ntawv hauv nroog thoob plaws lub xeev muaj tsib xyoos los sim tag nrho lawv lub tsev thiab siv cov kev kho kom raug.

Txhawm rau ua kom muaj kev noj qab haus huv thiab kev nyab xeeb ntawm SPPS cov tub ntxhais kawm thiab cov neeg ua haujlwm, Pab Pawg Environmental Services (ESG) tau pib ua cov txheej txheem rov qab kuaj xyuas txhua qhov kev sib tw ntawm txhua lub tsev ua ntej hnub pib ua haujlwm los ntawm txoj cai.

Kev kuaj Methodology thiab Protocol

Laj Thawj

Lub hom phiaj hauv cheeb tsam yog los xyuas kom muaj kev nyab xeeb, tsis muaj hmoov txhuas cov dej haus thoob plaws txhua qhov chaw. Qhov no suav nrog kev txheeb xyuas cov peev txheej dej uas siv rau kev haus dej haus, ua kev sim dej nrog kev tshuaj xyuas los ntawm lub chaw kuaj pom zoo, thiab ua raws cov txheej txheem raws li xav tau.

* Nco ntsoov tias SPPS kuaj TAG NRHO cov khoom siv hauv txhua lub tsev rau cov hlau lead. Txawm hais tias qhov no tsis xav tau los ntawm lub xeev cov cai, cov ntaub ntawv khaws cia tau txais kev pom zoo uas qhia txog qhov yuav tsum tau ua kom raug.

Methodology

Qhov kev pab cuam no yog qauv tom qab Minnesota Department of Health "Txo cov hlau lead hauv Haus Dej: Ib manual rau Minnesota Lub Tsev Kawm Ntawv." Qhov kev pab cuam nrhiav tau dej potable dej, qhov chaw ntawm cov hlau lead, thiab outlines ua raws li cov txheej txheem rau fixtures kuaj siab nyob rau hauv cov ntsiab lus.

Kev Kuaj Protocol:

1. Sample sau yog tau thaum sawv ntxov hnub tom qab flushing los yog txheem siv ib fixture mus ntes cov "phem rooj plaub" qauv ntawm cov dej haus ib tug neeg yuav haus los ntawm ib fixture nyob rau hauv lub lag luam.
2. Taps yuav tsum zaum stagnant tsawg kawg yog 6 teev, tiam sis tsis ntau tshaj 18 teev, ua ntej yuav kuaj tshwm sim.
3. Cov dej yog tus "thawj kos" dej los ntawm ib fixture.
4. Tus qauv sau los loj yog 250 ml.
5. Cov qauv no xa mus rau Minnesota Department of Health (MDH) pom zoo lab tsom xam los yog analyzed nrog ib qho kev pom zoo anodic stripping voltammetry txoj kev.
6. Qhov kev kuaj ntawd yuav tsum tau nyob los yog hauv qab no 5 qhov chaw hauv ib kuj (ppb).
7. Tag nrho cov dej haus yog sampled txhua tsib xyoos.

Tej dej haus muaj xws li:

• Haus fountains
• Dej fwj fillers (hydration noj)
• Daim tawv nqaij hauv chav kawm ntawv (tsuas yog kev kawm lab chav nyob rau hauv cov neeg thiab senior highs)
• Tag nrho chav ua noj
• Tag nrho cov nais maum/heath qhov chaw
• Chav Dej
• Chaw ua hauj lwm daim tawv nqaij
• Boiler Chav dej
• Custodial kaw slop sinks
• Ntxiv qhov chaw yuav muab ntxiv yog hais tias lawv muaj nyob li qhov chaw noj los ntawm qhov chaw nyob

Kev Kuaj Xyuas Tau Zoo Li Cas

Fixtures kuaj saum 5ppb yuav kaw tawm sai li sai tau thiab muaj ib tug qauv ua raws li cov qauv sau tom qab kho tej yam tshwm sim.

Kho Tej Yam Tshwm Sim

Cov dej fixtures uas kuaj saum lub xeev tswj threshole yuav tau disconnected thiab tus thawj xibfwb yuav raug ceeb toom. Lub Tuam Tsev Yuav remediate cov taps uas kuaj siab rau cov hlau lead los hloov lawv nrog fixtures tshiab, instituting flushing controls, los yog hloov cuam tshuam dab tsi rau cov kab raws li tsim nyog. Ntxiv rounds ntawm sampling yuav tau ua kom cov kev ua kom txaus txo cov hlau lead txaus rau cov fixtures cuam tshuam fixtures.

Hydration noj

Cov chaw muaj muas khoom thiab ntsia tsawg kawg yog ob hydration noj ntawm txhua lub tsev kawm ntawv nyob rau hauv koog tsev kawm ntawv. Ntxiv noj yog ntsia raws li ib feem ntawm qhov tshiab muab kev kuaj ntawd.

Kuv yuav kawm ntxiv li cas?

Yog xav paub ntxiv txog cov hlau lead hauv dej, nyeem Minnesota Lub Caj Meem Fai Saib Xyuas Kev Noj Qab Haus Huv hauv tsev kawm ntawv.

Yog xav paub ntxiv txog dej zoo thiab sampling rau cov hlau lead hauv tsev, hu rau koj lub zos dej los yog lub xeev haus dej.