GM501 Unit 5 Water Utility Tacit Knowledge Case Example

The Valves Only the Veterans Can Find: A Unit 5 Knowledge Management Case at a City Water Utility

[Student Name]

Purdue University Global

GM501: Management Theories and Practices II

Unit 5 Knowledge Management Case

[Instructor Name]

[Date]

The utility, its crews, the incident and every figure are composite and illustrative; the frameworks and studies cited are real.

The Incident

At 11:40 on a February night, a twelve-inch main broke under a commercial street near the hospital district. The responding crew, led by a supervisor with four years of experience, used the geographic information system map to locate the four valves needed to isolate the break. Two were where the map showed them. The third had been paved over during a road project and the map placed it nine feet from its real position. The fourth was marked as open but had been closed years earlier during another repair. The crew spent two hours and forty minutes isolating the break, and about 1,300 customers, including a dialysis clinic, lost water pressure for most of the night.

A crew leader with thirty-one years at the utility, called in from home at 1:15 a.m., found the paved-over valve in twenty minutes by measuring from a manhole he remembered. He also knew that the fourth valve was closed, because he had closed it himself.

The Kinds of Knowledge Involved

The utility's knowledge falls into two kinds. Explicit knowledge is written down and can be retrieved: the GIS valve map, work order histories, the system's hydraulic model and standard procedures for isolating a break. Tacit knowledge lives in people: which valves stick and need two people to turn, which are buried under repaving, which sequence of closures avoids pressure surges toward the hospital, which neighborhoods have old cast iron that breaks when pressure changes suddenly.

Ikujiro Nonaka treated tacit knowledge as the kind a person holds through long practice and struggles to state, and explicit knowledge as codified and transferable. He argued that organizations create knowledge by converting between the two (Nonaka, 1994).

Inventory of What the Utility Knows

A review with the three senior crew leaders and two supervisors identified 140 knowledge items related to emergency valve operations. They sort into five groups:

1. Valve locations that match the map: about 55 items. Explicit and retrievable.

2. Valve locations that differ from the map, such as valves moved, buried or never recorded: about 30 items. Tacit, held mainly by the three senior leaders.

3. Valve condition, such as sticking, broken stems and those that need special keys: about 25 items. Partly in work orders, mostly tacit.

4. Isolation sequences for high-risk areas such as the hospital district: about 15 items. Tacit, held by the senior leaders and one engineer.

5. Known errors in the map that have been reported but not corrected: about 15 items. Explicit in email and paper notes, not in the GIS.

About 70 of the 140 items, half the total, are either tacit or explicit but not retrievable when a crew needs them.

Half of what a crew needs to isolate a break at night is either in three people's heads or in notes that never reached the map those crews actually use.

Framework 1: Knowledge Conversion

Nonaka's model suggests converting tacit knowledge into explicit form. For the utility, that means interviewing the senior leaders, correcting the GIS map, adding notes on valve condition and writing isolation sequences for the hospital district and other high-risk areas (Nonaka, 1994).

What it handles well. Valve locations and known map errors can be documented directly. Once a buried valve's true position is in the GIS, any crew can find it. This group of items, about 45 of the 70 at risk, is well suited to conversion.

What it handles poorly. Some knowledge resists being written down. A senior leader knows how a valve feels when it is about to bind, or which closure sequence to change when pressure readings move unexpectedly. Written down, these become rules that a newer supervisor may not know when to break.

Framework 2: Communities of Practice

Jean Lave and Etienne Wenger described learning as participation in a community of practice: newcomers learn by working alongside experienced members, starting at the edges and moving toward full participation (Lave & Wenger, 1991). Applied to the utility, this suggests pairing newer supervisors with senior leaders on emergency calls and planned valve exercises before the senior leaders retire.

What it handles well. Judgment about valve behavior and isolation sequences is learned best by doing. A newer supervisor who has closed the hospital-district valves alongside a senior leader three times will understand the sequence in a way a document cannot convey.

What it handles poorly. It depends on time. Emergencies are unpredictable, and two years may not offer enough of them. It also leaves the knowledge in people, so the problem repeats when the next generation retires.

Why Transfer Is Hard

Gabriel Szulanski followed attempts to copy a proven practice from one unit of a company to another. In his data, unwillingness was rarely the main obstacle. The copies stuck when the unit on the other end lacked the background to use what arrived, when nobody could say exactly why a practice worked, and when the people giving and receiving it had a strained or distant working relationship (Szulanski, 1996). Each appears at the utility. Newer supervisors lack the experience to recognize what matters in a senior leader's account. The senior leaders themselves sometimes cannot explain why they choose a sequence. And because they work different shifts, the two groups rarely work together outside emergencies.

Recommendation

The two frameworks fit different parts of the inventory, so the utility should use both:

1. Convert what can be written. In the next six months, correct the GIS for the 30 known location differences and the 15 reported map errors, and add a condition field for each valve. Assign one GIS technician to ride with the senior leaders for this purpose.

2. Write the high-risk sequences, then test them. Draft isolation sequences for the 15 high-risk areas, and walk each one in the field with a senior leader and a newer supervisor.

3. Build practice deliberately. Schedule quarterly planned valve exercises in which newer supervisors lead and senior leaders observe, so learning does not depend on emergencies.

4. Keep a retiree on call. Offer each retiring leader a paid on-call arrangement for one year after retirement.

Conclusion

The utility's emergency response depends on knowledge held by three people about to retire. About half of what crews need is at risk. Nonaka's conversion model suits valve locations and map errors, and communities of practice suit judgment about valve behavior and isolation sequences. Szulanski's research explains why transfer will be harder than it looks. A plan that corrects the map, tests written sequences in the field and builds practice before the retirements, with a year of on-call support afterward, would protect what the utility knows.

References

Lave, J., & Wenger, E. (1991). Situated learning: Legitimate peripheral participation. Cambridge University Press.

Nonaka, I. (1994). A dynamic theory of organizational knowledge creation. Organization Science, 5(1), 14-37. https://doi.org/10.1287/orsc.5.1.14

Szulanski, G. (1996). Exploring internal stickiness: Impediments to the transfer of best practice within the firm. Strategic Management Journal, 17(S2), 27-43. https://doi.org/10.1002/smj.4250171105