Sanitary Survey Inspections
PWSSP conducts 75-80 on-site sanitary survey inspections per year depending on condition of the water
sources, facilities, equipment, operation and maintenance of public water systems on the Navajo Nation.
PWSSP conducts inspections of all public water systems under the jurisdiction of the Navajo Nation. These
inspections are conducted to evaluate the adequacy of the source, facilities, equipment, operation and
maintenance for producing and distributing safe drinking water.
sources, facilities, equipment, operation and maintenance of public water systems on the Navajo Nation.
PWSSP conducts inspections of all public water systems under the jurisdiction of the Navajo Nation. These
inspections are conducted to evaluate the adequacy of the source, facilities, equipment, operation and
maintenance for producing and distributing safe drinking water.
Follow-Up Inspections
Follow-up inspections are conducted from 6
months to a year depending on the condition
of the PWS and their compliance status.
Groundwater inspections are conducted on a
2-5 year basis depending on the condition of
the PWS. Surface water and Groundwater
Under the Direct Influence (GWUDI) of
Surface Water inspections are conducted on
an annual basis.
months to a year depending on the condition
of the PWS and their compliance status.
Groundwater inspections are conducted on a
2-5 year basis depending on the condition of
the PWS. Surface water and Groundwater
Under the Direct Influence (GWUDI) of
Surface Water inspections are conducted on
an annual basis.
| BIA Wellhouse This is a basic interior structure of a BIA well and its disinfection apparatus. PWSSP and IHS official conduct inspections to observe the integrity of the system. |
| NTUA Mexican Hat Water Treatment Plant This a filtration tank where the water passes through filters, some made of layers of sand, gravel, and charcoal that help remove even smaller particles. |
Abandoned Wells
Many abandoned wells are frequently found during scheduled water inspections. The PWSSP is currently
working with the Department of Water Resources to ensure the proper abandonment of these types of wells. In
the interim, PWSSP recommends that these wells be welded with a metal cap.
These types of wells posed a threat to the overall quality of an aquifer. These wells are not typically covered or
protected from any potential threat of contamination.
working with the Department of Water Resources to ensure the proper abandonment of these types of wells. In
the interim, PWSSP recommends that these wells be welded with a metal cap.
These types of wells posed a threat to the overall quality of an aquifer. These wells are not typically covered or
protected from any potential threat of contamination.
| Abandoned Well PWSSP and IHS surveyors usually come across an abandoned well while conducting a public water system sanitary survey. |
| On-Site Inspections |
