Prepare for the New Mexico ES-10 Water Well Pump Installer contractor examination with a Books & Courses Rental Package organized around the electrical code references, New Mexico licensing materials, and exam-focused study support associated with this specialty contractor classification. The package brings together the primary technical references used for ES-10 preparation with Business and Law materials to help candidates study the trade and licensing portions of the New Mexico contractor process in a more structured way.
The New Mexico ES-10 Water Well Pump Installer classification covers residential and commercial water well pump systems operating at 600 volts or less, single-phase or three-phase. The authorized scope includes installation, maintenance, repair, and replacement of electrical equipment, wiring, and accessories directly associated with water well pump systems. It also includes variable frequency drives, certain subpanels, luminaires and receptacle outlets within a well pit or well enclosure, branch-circuit or feeder conductors serving the well pump location, incidental excavation and trenching, and qualifying solar photovoltaic arrays dedicated to pumping equipment.
This is an electrical specialty classification with clearly defined limits. ES-10 does not authorize systems over 600 volts, electrical services, general building wiring, or unrelated electrical wiring. Candidates should understand these scope boundaries while preparing because knowing what the classification permits is an important part of approaching New Mexico contractor licensing correctly.
The ES-10 examination is open book and places substantial value on familiarity with electrical code references. Candidates should prepare to navigate the National Electrical Code, New Mexico Electrical Code, and National Electrical Safety Code while also building practical knowledge of pump motor circuits, conductors, grounding and bonding, raceways, panelboards, controls, overcurrent protection, and other electrical subjects associated with water well pump installations.
Package Price: $1,010
Refundable Deposit: $450
Total Due: $1,460
Rental Package Processing: Please allow up to 15 business days for book and course rental package orders.
Book Preparation: Some book(s) are highlighted and tabbed for exam preparation.
The New Mexico ES-10 Water Well Pump Installer examination contains 50 questions. Candidates are allowed 120 minutes to complete the examination and must earn a score of 75%, equivalent to 38 correct points, to meet the passing standard.
The examination is associated with New Mexico's Construction Industries Division contractor licensing program and is administered through PSI. Candidates pursuing qualification as a New Mexico contractor qualifying party must complete the examination requirements applicable to the requested classification as well as the state's Business and Law requirement.
ES-10 preparation should include a broad range of electrical subjects connected to water well pump systems. Important areas include general electrical installation requirements, feeders and branch circuits, overcurrent protection, grounding and bonding, conductors and cables, raceways and boxes, panelboards and switchboards, motors and pump controls, qualifying solar photovoltaic systems, and New Mexico-specific electrical requirements.
Questions may require candidates to apply both practical electrical knowledge and exact code provisions. For example, candidates may need to identify an applicable conductor requirement, determine grounding or bonding provisions, select an overcurrent protection rule, locate motor-related requirements, recognize a wiring method, or determine whether a described installation falls within the ES-10 classification.
The New Mexico ES-10 Water Well Pump Installer examination is an open-book examination. Candidates may use approved references during the test subject to PSI's examination-center rules.
Open-book status makes reference navigation a major part of preparation. Candidates should not expect to learn the books during the examination. Instead, study sessions should include regular use of the National Electrical Code, New Mexico Electrical Code, and National Electrical Safety Code so candidates become familiar with how each reference is organized and which book is most appropriate for a particular type of question.
PSI's New Mexico contractor examination rules allow approved reference materials to be highlighted, underlined, and indexed before the examination. References may be tabbed with permanent tabs. Temporary tabs such as Post-it notes are not permitted. Additional loose or attached papers are not allowed with approved references, and reference materials containing writing are not permitted in the testing center.
Some books in this rental package are highlighted and tabbed for exam preparation. Candidates should still practice navigating the references independently so they understand how articles, sections, tables, definitions, notes, exceptions, and indexes work together.
New Mexico contractor licensing uses a qualifying-party system. A business seeking an ES-10 contractor license must have a qualifying party who satisfies the experience and examination requirements for the classification.
The New Mexico ES-10 Water Well Pump Installer classification requires two years of qualifying experience. PSI's ES-10 work-experience verification materials identify this requirement as 4,000 hours.
The classification covers residential and commercial water well pumps operating at 600 volts or less on single-phase or three-phase systems. Authorized work includes installing, maintaining, repairing, and replacing electrical equipment, wiring, and accessories directly associated with water well pump systems.
The scope includes variable frequency drives used with qualifying pump systems. It also includes subpanels, luminaires, and receptacle outlets installed within a well pit or well enclosure, along with branch-circuit or feeder conductors extending from service equipment or a panelboard to the water well pump location.
Incidental excavation and trenching associated with the authorized work are included. The classification also permits solar photovoltaic arrays rated at 5 kW or less when those arrays are dedicated to pumping equipment.
The ES-10 classification does not include electrical systems over 600 volts. It also does not authorize electrical services, general building wiring, or other electrical wiring outside the defined water well pump installation scope.
Experience submitted for qualifying-party approval must meet New Mexico requirements and be properly documented. Current PSI work-experience instructions state that qualifying experience must have been obtained within the previous 10 years and that applicants may use more than one experience-verification form when necessary to demonstrate the required experience.
The ES-10 examination is open book. The primary technical references used for ES-10 examination preparation and permitted reference work include:
Candidates should ensure their examination references meet the testing center's requirements. Approved books may be highlighted, underlined, and indexed before the examination. Permanent tabs may be used, while temporary tabs and loose supplemental papers are prohibited.
Book preparation should support fast navigation rather than replace study. Become familiar with major NEC articles, definitions, tables, motor provisions, grounding and bonding requirements, conductor rules, raceway requirements, and other sections that may apply to water well pump installations.
General electrical installation requirements are an important foundation for ES-10 preparation. Candidates should understand electrical terminology, equipment installation principles, listed and labeled equipment concepts, working spaces, environmental conditions, and other general rules that influence safe electrical work.
Feeders and branch circuits deserve focused study because the ES-10 scope specifically includes branch-circuit or feeder conductors extending from service equipment or a panelboard to the well pump location. Practice determining conductor requirements, circuit arrangements, ampacity considerations, and related installation provisions.
Grounding and bonding are especially important subjects in electrical specialty work. Candidates should become comfortable locating rules for grounding electrodes, equipment grounding conductors, bonding, metal parts, enclosures, and other grounding-related conditions associated with pump installations.
Motor and control preparation should include pump motors, motor circuits, controllers, disconnecting means, overload protection, overcurrent protection, conductors, and variable frequency drives. Because water well pumps are motor-driven equipment, familiarity with NEC motor provisions and related tables can be particularly useful.
Raceways, boxes, conductors, and cable assemblies should also be reviewed. Water well installations may involve outdoor, underground, damp, or wet environments, making proper wiring methods and equipment selection important areas of study.
The ES-10 scope also includes qualifying photovoltaic arrays of 5 kW or less when dedicated to pumping equipment. Candidates should understand the scope limitation and review applicable electrical provisions associated with photovoltaic systems where relevant to the examination.
Timed reference practice can strengthen exam readiness. With 50 questions and 120 minutes available, candidates should avoid spending excessive time searching for a single answer. Practice identifying the subject first, choosing the most likely reference second, and then navigating directly to the applicable article, section, table, or rule.
1 Exam Prep helps candidates build a more organized approach to the New Mexico ES-10 Water Well Pump Installer examination by combining trade-focused review with structured reference navigation and practice-oriented preparation.
The course materials can help students organize study around the electrical subjects that matter for the classification, including branch circuits, feeders, conductors, grounding and bonding, raceways, boxes, panelboards, motors, pump controls, overcurrent protection, variable frequency drives, and New Mexico-specific electrical requirements.
Open-book exam preparation is also supported through repeated reference use. Candidates can practice deciding whether a question belongs in the NEC, New Mexico Electrical Code, or National Electrical Safety Code and then locate the relevant requirement efficiently. This process can improve familiarity with the books and reduce unnecessary searching during practice.
Some books are highlighted and tabbed for exam preparation, providing additional organization while students build familiarity with the reference structure. Highlighting and tabs are most effective when combined with regular practice using the same references.
Business and Law materials are also included so candidates can prepare for the broader New Mexico contractor licensing requirements in addition to the ES-10 technical examination. Organized preparation can help students move through technical review, code navigation, practice questions, and licensing topics with a clearer study structure.
ES-10 is an electrical specialty contractor classification covering qualifying residential and commercial water well pump systems operating at 600 volts or less, single-phase or three-phase.
The New Mexico ES-10 Water Well Pump Installer examination contains 50 questions.
Candidates are allowed 120 minutes to complete the examination.
The passing standard is 75%, equivalent to 38 points on the 50-question examination.
Yes. The ES-10 examination is open book, subject to PSI's rules regarding approved references and book preparation.
The ES-10 classification requires two years, or 4,000 hours, of qualifying experience.
The classification covers qualifying residential and commercial water well pump systems rated at 600 volts or less and operating on single-phase or three-phase power.
Yes. Variable frequency drives used in connection with qualifying water well pump systems are included within the ES-10 scope.
The classification includes solar photovoltaic arrays rated at 5 kW or less when the array is dedicated to pumping equipment.
No. The ES-10 classification does not include electrical services, building wiring, systems over 600 volts, or electrical wiring outside the classification's defined scope.
Approved references may be highlighted, underlined, and indexed before the examination. Permanent tabs are permitted under PSI examination rules, while temporary tabs such as Post-it notes are not allowed. Some book(s) in this package are highlighted and tabbed for exam preparation.
The trade references include the National Electrical Code, NEC, 2020; New Mexico Electrical Code (NMAC 14.10.4), 2020; and National Electrical Safety Code, 2017. Business and Law materials are also included as listed above.
The package price is $1,010. A refundable deposit of $450 applies, making the total due $1,460.
Please allow up to 15 business days for book and course rental package orders.
The ES-10 examination is open book and requires candidates to work with multiple electrical references. Practicing how to identify the correct book and locate relevant articles, tables, definitions, and code sections can make exam preparation more efficient and structured.
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