Across the United States, hospitals continue to make headlines for contaminated or improperly processed surgical instruments.
A Michigan medical center faced renewed investigations into sterilization practices after years of complaints about dirty instruments. A California campus was placed in “Immediate Jeopardy” after regulators found instruments were not cleaned and processed according to nationally recognized standards. A Missouri hospital acknowledged surgeries were canceled, delayed, or relocated due to brown staining and residue on instruments. An Arizona medical center reduced daily surgical volume due to sterilization system issues. A Virginia hospital was cited in an Immediate Jeopardy finding tied to improper cleaning of surgical instruments. This list goes on and the stories bare a familiar resemblance.
The visible problems are consistent:
Brown staining
Rust and corrosion
Residue
Delayed surgeries
Regulatory citations
Investigations typically focus on washers, sterilizers, staffing, or inspection failures.
But there is one common thread almost never mentioned publicly:
For IP, SPD and Facilities leaders, that omission is significant.
Water Is the First Critical Control Point in Reprocessing
Surgical instruments arrive in SPD contaminated. Decontamination workflows are designed to remove bioburden through validated mechanical and chemical processes.
But every one of those processes depends on water.
Water activates detergents.
Water removes soil.
Water performs rinsing.
Water feeds steam generators.
If water quality is chemically or microbiologically unstable, the entire reprocessing process becomes vulnerable.
Excess minerals can leave deposits that appear as staining or spotting.
Improperly treated water contributes to corrosion and instrument damage.
Microbial contamination in rinse water can reintroduce organisms.
Poor steam quality can affect sterilization performance.
When residue or staining appears, the immediate assumption is often washer malfunction or technician error. Yet water chemistry directly affects cleaning efficacy — and is frequently absent from root cause discussions.
A Pattern of Reactive Response
Across high-profile cases, the pattern is striking:
Contamination or corrosion is discovered.
Surgeries are delayed or canceled.
Regulators cite infection control deficiencies.
Staff retraining and equipment servicing follow.
Public assurances are issued.
Rarely do reports reference:
Water quality trend data
Reverse osmosis system validation
Endotoxin testing results
Steam quality verification
Dead-leg or stagnation evaluation
A documented water management program aligned with ANSI/AAMI ST108
The committee tasked with authoring the 2023 standard warned that gaps in sterile services governance can create patient safety risks related to contaminated surgical instruments. Utilities — including water — are part of that governance framework.
Water is infrastructure. Infrastructure often becomes visible only when failure occurs.
ANSI/AAMI ST108 Elevated Water to a Clinical Risk Variable
ANSI/AAMI ST108:2023 formally establishes water quality requirements for medical device processing in healthcare facilities. The standard defines:
Chemical quality parameters for utility and critical water
Microbial quality limits for critical water applications
Endotoxin limits for defined critical water uses
Required monitoring, testing, and performance verification within a documented water management program
Documentation and corrective action expectations
Clearly defined organizational responsibility and oversight for water quality management
ST108 reframes water as a controlled clinical utility — not simply a facilities commodity.
For SPD leaders, this means water quality can no longer be assumed.
For Facilities leaders, this means utilities are directly tied to clinical risk, compliance readiness, and survey defensibility.
The Problem With Product-First Water Vendors
When hospitals attempt to address water quality, many vendors lead with equipment:
“You need an RO system.”
“Add softening.”
“Upgrade your filters.”
Hardware matters — but equipment alone does not ensure compliance with ANSI/AAMI ST108, nor does it guarantee reduced infection risk.
True hospital water quality management requires:
System design based on sterile processing specifications
Understanding detergent chemistry interactions
Endotoxin risk assessment
Steam quality validation
Routine sampling and trending
Cross-functional SPD–Facilities governance
Documentation structured for regulatory review
Industrial water treatment is not the same as healthcare sterile processing.
Vendors who lack clinical and regulatory sophistication may install systems without delivering a comprehensive water management program. Hospitals do not simply need equipment — they need oversight, documentation, monitoring, and accountability aligned with patient safety standards.
Why This Matters for Surgical Site Infections
The U.S. healthcare system spends billions annually treating hospital-acquired infections, with surgical site infections (SSIs) representing a significant portion (Baker, Sterile Processing Problems). While SSIs are multifactorial, contaminated or improperly processed instruments are a recognized contributor.
Water quality does not cause every SSI.
But unmanaged water quality increases variability.
And variability increases risk.
If mineral deposits shield microbes from sterilant penetration…
If endotoxins persist in final rinse water…
If corrosion creates surface irregularities that harbor soil…
If steam quality fluctuates…
Even well-trained SPD teams are operating within unstable conditions.
For SPD leaders, this is about process reliability.
For Facilities leaders, this is about utility control with clinical consequences.
The Questions Hospitals Should Be Asking
When contamination events occur:
What failed?
Who missed it?
How do we fix it?
A more proactive question is:
What is the documented condition of the water feeding our sterile processing department today?
If the answer relies on assumptions, vendor claims, or outdated testing data, risk remains embedded upstream.
The water-related common thread no one mentions is this:
Many instrument contamination events begin not at the prep table — but at the utility level.
Proactive water quality management aligned with ANSI/AAMI ST108 is foundational risk control.
Because when water is unstable, everything downstream becomes harder to control.
If regulators reviewed your SPD water quality data tomorrow, would you be confident in what they’d find? If not, contact us.