Homepage mockup v1 072 666 6348 ronaldoretief@gmail.com Gauteng, South Africa · Projects across Southern Africa & the Middle East
RGR Environmental Solutions
Environmental assessment & specialist studies

Environmental approvals, built on field science.

EIAs, ecological, wetland, waste and air quality studies for mining, energy, infrastructure and government projects. Delivered by a registered EAP and natural scientist with 19 years in the field.

EAPASA 2019/181 SACNASP 005636 M.Sc. Zoology
RGR Environmental Solutions logo: the letters R, G and R formed from moss, a baobab tree and bark, surrounded by South African wildlife including a kudu, leopard, vervet monkey, catfish, bullfrog and tortoise.
  • 19+years in environmental consulting
  • 90+Environmental Impact Assessments
  • 50+Water Use Licence Applications
  • 55+specialist assessments
  • 20+mining applications
Who we are

One specialist, from the first site visit to the final sign-off.

RGR Environmental Solutions is led by Ronaldo Greeff-Retief, an environmental scientist who has managed projects ranging from 400 kV power lines and coal mines to township developments and World Heritage Site planning.

Clients deal directly with the person doing the fieldwork and writing the report. That means fewer handovers, faster answers for the authorities, and recommendations grounded in what was actually found on site.

EAPASARegistered Environmental Assessment PractitionerReg. 2019/181
SACNASPProfessional Natural Scientist: Zoological, Ecological & EnvironmentalReg. 005636
More about Ronaldo
Our core services

Specialist studies and approvals under one roof

From the screening report to the Environmental Control Officer on site, each service draws on the same field experience.

Impact Assessments

Environmental authorisation, start to finish

Basic Assessments and full Scoping & EIR processes under NEMA, including amendments, public participation and authority liaison.

BAR · S&EIR · EMPr · S24G rectification

Explore impact assessments

Ecology & Biodiversity

Flora, fauna and sensitivity mapping

Ecological baselines, species searches and sensitivity maps that hold up to scrutiny, plus Biodiversity Action Plans and monitoring protocols.

Ecological scans · BAPs · Search & rescue · Tree permits

Explore ecology services

Wetlands & Water

Delineation, biomonitoring and licensing

Wetland delineation and functional assessments, SASS5 aquatic biomonitoring, water quality reporting and Water Use Licence Applications.

WULA · GA · SASS5 · Wetland PES/EIS

Explore water services

Waste Management

Plans, licences and landfill studies

Integrated Waste Management Plans for municipalities, landfill status-quo assessments, waste specialist reports and waste licence applications.

IWMPs · Landfill audits · Waste licences

Explore waste services

Air Quality

Emissions licensing and monitoring

Atmospheric Emission Licence applications, dust and emissions monitoring programmes, and independent review of air quality reports.

AEL applications · Dust monitoring · Report review

Explore air quality services

Compliance & Audits

ECO services and environmental audits

Environmental Control Officer monitoring on construction sites, EA and EMPr compliance audits, and management-system assessments.

ECO · EPA audits · ISO 14001 / 9001 / 45001

Explore compliance services
How a project runs

From listed activity to on-site compliance

  1. Screening & legal triggers

    Confirm which NEMA listing notices, water uses and licences apply, using the national screening tool and a desktop sensitivity review.

  2. Specialist fieldwork

    Ecological, wetland, aquatic and visual studies carried out on site, mapped in ArcGIS and PlanetGIS.

  3. Public participation

    Notices, registers and meetings run so that interested and affected parties are heard and recorded properly.

  4. Reporting & authority liaison

    Reports and EMPrs written to the department's requirements, with direct follow-up until a decision is issued.

  5. Construction compliance

    ECO monitoring and audits against the authorisation and approved EMPr once work starts.

Why RGR

Senior expertise without the layers

A small practice backed by nearly two decades of work with some of South Africa's leading environmental consultancies.

Testimonial placeholder. A LinkedIn recommendation from a client or colleague would sit here.

Name, role, organisation
  • Registered and accountable

    A Professional EAP (EAPASA 2019/181) and Professional Natural Scientist (SACNASP 005636), so reports carry a registered professional's signature.

  • Scientist-led

    An M.Sc. in Zoology and published research on biological indicators of metal pollution in yellowfish. The science behind the findings is done properly.

  • Direct senior attention

    The specialist who walks the site writes the report and answers the authority's questions. Nothing is lost in handover.

  • Cross-sector experience

    Mining, renewable energy, linear infrastructure, municipal waste, petroleum and property development, in South Africa and abroad.

Selected project experience

Fieldwork across five provinces and three countries

Infrastructure2026

OR Tambo SEZ Pipeline: Ecological Assessment

Ecological assessment for pipeline infrastructure serving the OR Tambo Special Economic Zone, building on earlier ecological and wetland work at the site.

Ekurhuleni, Gauteng
Conservation2024

Barberton Makhonjwa Mountains World Heritage Site

Managerial support to the Mpumalanga Tourism and Parks Agency on the site's Integrated Management Plan.

Barberton, Mpumalanga
Waste2023–24

Limpopo Municipal Waste Management Plans

Project manager and ecologist for landfill status-quo studies and Integrated Waste Management Plans across 11 Limpopo municipalities, with wetland assessments at five landfill sites.

Vhembe & other districts, Limpopo
Renewable energy2025

Tumair & Majmah Solar Farms

Specialist ecological assessments for two utility-scale solar developments.

Riyadh Province, Saudi Arabia
Mining2012

Sishen Mine Biodiversity Action Plan

Biodiversity Action Plan, ecological baseline study and monitoring protocol for the westward expansion of an iron ore mine.

Kathu, Northern Cape
Air quality2026

Correctional Facilities Emission Licences

Atmospheric Emission Licence applications for four correctional facilities.

South Africa
Sectors Mining Renewable energy & BESS Power lines & substations Roads & pipelines Municipal & provincial government Property development Petroleum & fuel storage

Includes projects delivered by Ronaldo during previous roles.

View all projects View all projects
Public consultation

Documents open for public comment

Projects that need environmental authorisation must give the public a chance to comment. Download the reports for current projects, register as an Interested and Affected Party, and send your comments before the closing date.

View current consultations

Planning a development? Bring the environmental specialist in early.

Early screening shows which approvals you need and how long they will take, before they hold up construction.

Phone072 666 6348
Emailronaldoretief@gmail.com
Start a conversation